DEN

$675 Find Cheap Flights to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 29/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Denver
These are the airlines KAYAK users have selected most often from within our search results for flights to Denver
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
$1,254
Typical prices: $2,224-$1,510
Multiple Airlines
Wed 15/4Wed 6/5
SYD - DEN • 2 stops
Cheapest one-way flight
$675
Typical prices: $788-$1,290
Multiple Airlines
Wed 29/7
SYD - DEN • 3 stops
When to travel
Cheapest • 12% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Denver

Wed, 15 Apr - Wed, 6 May
Multiple Airlines Logo
13:15 - 19:49
SYD
-
DEN
22h 34m
2 stops
Multiple Airlines Logo
07:20 - 22:10
DEN
-
SYD
46h 50m
2 stops
$1,254Multiple Airlines
Thu, 14 May - Mon, 8 Jun
Multiple Airlines Logo
13:15 - 00:38
SYD
-
DEN
27h 23m
2 stops
Multiple Airlines Logo
07:00 - 11:50
DEN
-
SYD
36h 50m
2 stops
$1,351Multiple Airlines
Mon, 18 May - Sun, 31 May
Multiple Airlines Logo
13:30 - 00:38
MEL
-
DEN
27h 08m
2 stops
Multiple Airlines Logo
07:00 - 12:25
DEN
-
MEL
37h 25m
2 stops
$1,367Multiple Airlines
Tue, 19 May - Tue, 2 Jun
Air Canada Logo
10:15 - 12:33
BNE
-
DEN
18h 18m
1 stop
Air Canada Logo
19:50 - 07:05
DEN
-
BNE
19h 15m
1 stop
$1,418Air Canada
Thu, 7 May - Wed, 10 Jun
Air Canada Logo
10:00 - 18:12
BNE
-
DEN
24h 12m
1 stop
Air Canada Logo
19:50 - 07:05
DEN
-
BNE
19h 15m
1 stop
$1,427Air Canada
Mon, 11 May - Mon, 18 May
Air Canada Logo
20:45 - 17:00
BNE
-
DEN
36h 15m
2 stops
Air Canada Logo
19:50 - 07:05
DEN
-
BNE
19h 15m
1 stop
$1,452Air Canada
Thu, 7 May - Wed, 10 Jun
Air Canada Logo
20:05 - 12:33
BNE
-
DEN
32h 28m
2 stops
Air Canada Logo
11:23 - 07:05
DEN
-
BNE
27h 42m
2 stops
$1,473Air Canada
Fri, 24 Apr - Fri, 1 May
Qatar Airways Logo
22:45 - 21:49
PER
-
DEN
37h 04m
2 stops
Qatar Airways Logo
23:59 - 18:35
DEN
-
PER
52h 36m
2 stops
$2,622Qatar Airways
Sun, 10 May - Sun, 17 May
Qatar Airways Logo
22:45 - 22:59
PER
-
DEN
38h 14m
2 stops
Qatar Airways Logo
12:40 - 18:35
DEN
-
PER
39h 55m
2 stops
$2,752Qatar Airways
Wed, 13 May - Wed, 20 May
Qatar Airways Logo
22:45 - 21:59
PER
-
DEN
37h 14m
2 stops
Qatar Airways Logo
09:00 - 18:35
DEN
-
PER
43h 35m
2 stops
$2,963Qatar Airways
Booking Insights

KAYAK's insights & trends for flights to Denver

Get data-powered insights and trends into flights to Denver to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Denver is November, where tickets cost $1,421 on average for return flights. On the other hand, the most expensive months are January and December, where the average cost of tickets from Australia is $1,949 and $1,866 respectively. For one-way flights, the best month to travel is May with an average price of $1,404.

How far in advance should I book a flight to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know – Book Cheap Denver Plane Tickets

Low seasonMarch
Cheapest flight$675
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.
Flight from Sydney to Denver

When to book flights to Denver

Are your dates flexible? Find out the best times to travel to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Denver based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Denver flights

  • What are my dining options at Denver International Airport?

    If you’re hungry after your flight, Denver International Airport offers a wide variety of dining options that cater to all price ranges. You can find everything from quick snacks and fast food to gluten-free treats and Asian cuisine. Most of the dining options can be found around Gates A, B and C, but there are also some at Jeppesen Terminal.

  • What can I do on my layover at Denver International Airport?

    If you have a layover at Denver International Airport, there’s plenty to explore in the airport itself. Between Jeppesen Terminal and Gate A, you can find a skywalk with an exhibition that will take you through the history of aviation in Colorado. If you’re an art lover, there are 20 or so permanent pieces of art (sculptures, exhibits and paintings) to discover as you explore the airport. For a dose of nature, head over to Gates C23 and C24, which feature a wide-open view of The Rocky Mountains.

  • What are the accommodation options near Denver International Airport (DEN)?

    Westin Hotel at Denver International Airport offers on-site accommodation with 519 rooms and a commuter train connection to downtown Denver. AmericanInn by Wyndham Denver Airport, Hyatt House Denver Airport, Best Western Plus Denver International Airport, and Holiday Inn Express Airport are all within a 5min drive from the airport, and each offers a shuttle bus service.

  • Can I smoke at Denver International Airport (DEN)?

    While smoking inside the airport is not allowed, there are a number of designated areas where you can smoke outside the Jeppesen Terminal. Smoking areas can be found on levels 4, 5, and 6 on both the east and west sides of the terminal.

  • What lounges are there in Denver International Airport (DEN)?

    The airport hosts American Airlines Admirals Club (Concourse A), United Club (various locations in East Wing and West Wing), Delta Sky Club (Concourse A), and USO Lounge (Concourse A). Economy class Passengers are welcome to buy a day pass or annual membership.

  • Do arriving Australian citizens have to pass through border control?

    Australian passengers who haven't yet cleared Customs will arrive to the A gate at Denver International Airport and will proceed to the Jeppesen Terminal to go through US Customs and Border Protection. Here, you will have your passport and documentation scanned before collecting your baggage. Denver International Airport offers both Mobile Passport Control and Global Entry for expedited processing.

  • Which cities are served by Denver International Airport (DEN)?

    Denver International Airport is convenient to passengers who wish to travel to Aurora (28.97 km), Colorado Springs (136.8 km), and Albuquerque, New Mexico (556.83 km).

  • Where is the train station at Denver International Airport (DEN)?

    The A Line commuter train runs between DEN and downtown Denver every 15min from 03:00-05:00 and 18:00-01:00. Travel time is approximately 37min. Catch the train at Denver Airport Station at the south end of the Jeppesen Terminal.

  • How far is Denver Intl Airport from central Denver?

    The distance between Denver Intl Airport and the city centre of Denver is 30 km.

  • What is the name of Denver’s airport?

    When flying to Denver, you'll arrive at Denver Intl Airport (DEN). The airport is also known as Denver or Denver Intl.

  • How does KAYAK find such low prices on flights to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Denver

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Denver flight deals.
  • If you need help with mobility assistance while at Denver International Airport (DEN), there are wheelchairs available as well as an electric car service. It’s best to contact your airline at least two days before your flight to ensure easy access. On top of that, there are accessible parking spaces right near the entrance of Jeppesen Terminal.
  • Have some time to spare on a layover and feel like you need to relax after a long flight? If so, Denver International Airport features massage centres at Gate C’s centre core and Gate B’s mezzanine. There, you can get a table and chair massage by a trained professional or relax in the massage chairs.
  • If you need a moment for prayer or reflection, head to the sixth floor of Jeppesen Terminal, where you’ll find an interfaith chapel and prayer hall. On Sundays, at 13:00, they hold a Catholic Mass, and there is also an Islamic place of worship available. The chapel opens from approximately 04:00 to 00:00 (midnight).
  • Need to exchange your Australian dollars for US dollars? You can do so at the centre core of Gates A and B. You can also book an appointment to exchange money in Jeppesen Terminal or use the services at the credit union there. Plenty of ATMs can be found around the airport as well.
  • Denver International Airport (DEN) is one of the main airports in the United States, and it’s an important hub for United Airlines, Frontier Airlines and Southwest Airlines.
  • The airport operates a number of international flight routes, serving destinations in Central America, Asia, Canada, Europe, and Mexico.
  • For passengers traveling with infants, Denver International Airport (DEN) provides three nursing rooms with baby care facilities in each of the concourses. Facilities are located near the female restrooms at the center of gates A, B, and C.
  • If you're arriving at Denver International Airport (DEN) by car, there are different options of parking available, from about $ 3 (A$ 4.40) per hour and about $ 33 (A$ 48) for the daily rates. There is also the option of long-term parking starting from $ 8 (A$ 11) per day.
  • Passengers flying from Denver International Airport (DEN) to a domestic destination can use additional check in and bag check services at the Transit Center and Mt. Elbert and Pikes Peak shuttle. Conveniently drop off your luggage and continue to the airport bag free.
  • Pets travelling from Denver International Airport (DEN) get their own private room with turf flooring and artificial rock, where they can relieve themselves before security. The airport also features Paradise 4 Paws resort, which offers webcams, obedience training, massage therapy, and a pool for furry travellers.

Reviews of the top 5 airlines flying to Denver

 
See real verified KAYAK customer reviews for airlines flying to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Denver. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Air New ZealandOverall score based on 622 reviews
8.5Crew
8.2Boarding
7.4Entertainment
7.4Food
8.0Comfort
Airline reviews

The flight was smooth and on time. Entertainment options were lacking and there was no food, other than some very boring snacks.

8.0 ExcellentMarsha, Mar 2026
IAH - ORD
Read more Air New Zealand reviews

The flight was smooth and on time. Entertainment options were lacking and there was no food, other than some very boring snacks.

A better selection of entertainment would have been nice. I found nothing that appealed to me as a middle-aged traveler. The flight attendants were gracious, helpful, and attentive. It also would have been nice to have more bathrooms as the flight was full and the plane was big.

Both my wife and I thoroughly enjoyed our return home from Tokyo to Auckland and onwards to Palmerston North. We would recommend using the Premier Business class for long-haul travel, any day. Well worth the extra cost. Cabin staff were exceptional, Thank you

Wonderful trip. Everyone from checking in to the gate to the flight itself was amazing - kind, helpful, and has a beautiful smile.

This flight was the second leg of a trip that began in Auckland, New Zealand. I was unable to find a way to select seats in advance. The boarding passes we were given in Auckland did not have seat assignments for the second flight. There was no way to check on it until personnel showed up at the gate in Los Angeles, immediately before boarding time. The flight was overbooked by one, and since I was traveling with my sister, we needed two seats. We waited in considerable anxiety for everyone else to board and when one person did not show up, we had to take whatever was left. At least we finally got on the flight although we were the very last to board. We were not able to sit together, of course.

The Premium Economy seats were very comfortable and the food was quite tasty. I did not use the entertainment system, but I was able to charge my phone and tablet with the seatback connection.

Nothing better than Air New Zealand. Top scores in every category.

We had difficulty checking in as United didn’t recognize the confirmation number and the agent was not helpful. We went to the United Assistance desk where the agent was able to process our reservation. We also weren’t allowed to choose seats in advance.

All good, except entertainment system could have been better. More choices.

Air New Zealand over sold our flight and tried to bump us to yesterday. After several calls we got booked to United about 6 hrs before our original flight. No apologies!

On the Qantas flight, I could barely hear some of the announcements. It was better when I could read them on the screen.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

Our boarding and flight was very good. However when we landed and pulled in to the gate it took 55 minutes for the jet bridge to be positioned next to the aircraft. That caused us to miss our ground transportation and it caused us unnecessary last minute transit planning and expense. Our flight was AA1733 on March 17, 2026

We booked with Qantas instead of Delta and we instead flew on American Airlines. American is not our favorite to go on. No leg room and the width of seats are a joke. Your are packed like sardines on American flights.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

When I originally booked this flight, I was expecting to travel on Qantas. When the itinerary changed and the long-haul segment was operated by American Airlines, we were disappointed but remained open-minded. Unfortunately, the overall service experience fell far short of expectations. This was a long-haul international flight. Getting up periodically to use the restroom or stretch is inevitable, especially on flights of this duration. However, each time we stood up, we felt as though we were inconveniencing the crew. The tone and body language often suggested that we were in the way or disrupting something simply by moving about the cabin. As a result, I avoided getting up as often as I needed to and was physically very sore upon arrival. Meal service was similarly impersonal. The options were presented in single words “beef or veggie,” “pasta or beef” without any description of what was actually being served. There was little engagement or courtesy beyond that. Even simple expressions of gratitude were often not acknowledged. I am accustomed to no-frills travel and do not expect luxury. What was disappointing was not the absence of extras, but the absence of basic warmth and professionalism. On a long-haul international flight, small moments of courtesy and humanity make a significant difference. In this case, the experience felt transactional and dismissive rather than welcoming. I hope this feedback is taken constructively, as there is a meaningful difference between efficient service and indifferent service.

Qantas is always subpar beyond comfy chairs for a domestic flight

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Flight arrived late with no one to help over 30 people rebook. I slept at the airport.

Business seats not as comfortable or private as most competitors (e.g. Qantas was outstanding), and movie selection was much more limited than Qantas or United has been recently

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

2000 USD for a 10 hour flight on the worst seats I've ever flown in.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

Award tickets are some of the best... seats lack entertainment options.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

My ticket did not exist when I got to the airport. I had to book another flight and was still charged by Kayak

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

The plane was delayed an hour. Heard from other passengers that the Vancouver connection to SFO was never on-time.

My experience was good with United too But only not so good thing was that at Calgary airport I was not given lounge access despite of flying business. Aspire lounge denied it to me, which was unfair I feel

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Boulder
Breckenridge
Castle Rock
Aurora
Black Hawk
Keystone
Silverthorne
Central City
Estes Park
Wheat Ridge
Winter Park
Englewood
Greenwood Village
Grand Lake
Manitou Springs
Longmont
Littleton
Golden
Westminster
Lakewood

Everything you need to know for your flight to Denver

Flights with popular airlines flying to Denver

Flights from the other most popular airlines that fly from Australia to Denver according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.