$636 Find Cheap Flights from Denver to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Australia departing on 27/9. 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

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Best Australia Flight Deals from Denver

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$1,282
Brisbane
Brisbane1 stop$1,537
Perth
Perth2 stops$1,905
Darwin
Darwin2 stops$1,954
Sydney
Sydney1 stop$1,282
Brisbane
Brisbane1 stop$1,537
Perth
Perth2 stops$1,905
Darwin
Darwin2 stops$1,954

Cheap Flights from Denver to Australia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Denver to Australia 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 from Denver to Australia

Tue, 28 Oct - Tue, 11 Nov
Qantas Airways Logo
17:42 - 07:25DEN-SYD
20h 43m1 stop
Qantas Airways Logo
11:15 - 12:24SYD-DEN
19h 09m1 stop
$1,282Qantas Airways
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Tue, 29 Jul - Mon, 11 Aug
Qantas Airways Logo
18:07 - 07:30DEN-SYD
21h 23m1 stop
Qantas Airways Logo
09:10 - 17:29SYD-DEN
24h 19m1 stop
$1,283Qantas Airways
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Sun, 26 Oct - Wed, 12 Nov
Delta Logo
06:30 - 07:35DEN-SYD
32h 05m1 stop
Delta Logo
11:05 - 11:30SYD-DEN
18h 25m1 stop
$1,322Delta
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Sun, 27 Jul - Mon, 11 Aug
Delta Logo
12:30 - 06:35DEN-SYD
26h 05m1 stop
Delta Logo
09:25 - 18:21SYD-DEN
24h 56m1 stop
$1,336Delta
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Wed, 25 Jun - Sun, 7 Sep
 Logo
11:40 - 07:30DEN-SYD
27h 50m1 stop
 Logo
16:20 - 12:10SYD-DEN
35h 50m2 stops
$1,434
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Tue, 26 Aug - Wed, 24 Sep
 Logo
19:49 - 11:30DEN-MEL
23h 41m2 stops
 Logo
06:00 - 14:53MEL-DEN
24h 53m2 stops
$1,434
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Thu, 24 Jul - Thu, 31 Jul
American Airlines Logo
18:35 - 06:55DEN-SYD
20h 20m1 stop
American Airlines Logo
09:10 - 15:46SYD-DEN
22h 36m2 stops
$1,458American Airlines
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Fri, 17 Oct - Fri, 14 Nov
American Airlines Logo
08:38 - 06:55DEN-SYD
29h 17m1 stop
American Airlines Logo
11:15 - 15:01SYD-DEN
21h 46m2 stops
$1,478American Airlines
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Sun, 3 Aug - Mon, 11 Aug
United Airlines Logo
19:25 - 08:15DEN-MEL
20h 50m1 stop
United Airlines Logo
10:55 - 18:13MEL-DEN
23h 18m1 stop
$2,079United Airlines
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Tue, 9 Sep - Tue, 16 Sep
United Airlines Logo
15:40 - 08:15DEN-MEL
24h 35m2 stops
United Airlines Logo
10:55 - 16:09MEL-DEN
21h 14m2 stops
$2,085United Airlines
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KAYAK's insights & trends for Denver to Australia flights

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

What is the cheapest month to fly from Denver to Australia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Australia, 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 from Denver to Australia is April, when tickets cost $1,336 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is $2,186 and $2,009 respectively.

What’s the cheapest day of the week to fly from Denver to Australia?

The average price of all round-trip flights from Denver to Australia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Australia on a Wednesday and more expensive on a Tuesday. On your return trip to Denver, you should consider flying back on a Monday, and avoid Fridays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Australia, 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 on the flight from Denver to Australia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.


Good to know

Low seasonAugust
High seasonDecember
Cheapest flight$636
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from Denver to Sydney

FAQs - booking Australia flights

  • Does Denver Airport have a military lounge?

    Yes. Located airside in Concourse A on Level 4, the USO offers its services and facilities free of charge to active-duty or retired US military personnel and their families. Some amenities of the USO at DEN include refreshments, hot coffee, flight time boards, and comfortable seating.

  • Does the Denver Airport have a hotel?

    Yes. The Westin Denver International Airport Hotel is connected to DEN at the Jeppesen terminal. If your plane is not departing from Jeppesen, you can get a free shuttle from the hotel to a different terminal. Other features of this upscale hotel include a pool, a fitness center, a restaurant and bar, room service, and much more.

  • What documentation do I need in order to fly to Australia?

    To enter Australia, you need a valid passport that has at least one blank page for an entry stamp. You will also need a valid visa and a filled-out Incoming Passenger Card that you have signed. You will receive an Incoming Passenger Card from your airline during your flight to Australia.

  • Can I rent a car in Australia?

    In order to rent a car in Australia, ideally, you should be 25, but usually for an extra fee, you can rent a car if you are between the ages of 21 and 24. You need to have a valid driver's license that you've had for at least a year. You also need to have insurance on the car and you cannot take a rental car on ferries.

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

    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 from Denver to Australia.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Denver to Australia 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 from Denver to Australia?

    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 from Denver to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally in the afternoon, when retur flights cost $938 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally at night, which is peak travel time and where the average cost of a ticket is $1,397.

Top tips for finding cheap flights to Australia

  • Located on the edge of the Rocky Mountains in Colorado, the Denver International Airport (DEN) serves as a hub for United, Southwest, Frontier, and other airlines. When you book your ticket from Denver to Australia through KAYAK, you will have many choices of airline, airport, layover locations, and prices in order to find the flight that's right for you.
  • Brisbane is in the center of the eastern coast of Australia on the banks of the Brisbane River and on the shores of Moreton Bay in the Coral Sea. You can find flights from Denver to the Brisbane Airport (BNE) on airways such as Qantas, United, Alaska Airlines, American, and Air Canada. Popular layover locations include Vancouver and Los Angeles. You can find flights with two stops on American, Fiji Airways, Air New Zealand, and others.
  • Located in the southeast corner of Australia, Sydney is built around Sydney Harbor, on the shores of the Tasman Sea. Flights on United, American, Delta, and Qantas offer flights with one stop between DEN and the Sydney Kingsford Smith Airport (SYD) These flights often stop in Los Angeles. Delta, Fiji Airways, Air New Zealand, Alaska Airlines, and more offer two-stop flights between Denver and Sydney with many different layover locations.
  • Located on the banks of the Swan River and the shores of the Indian Ocean, Perth is in the southwest corner of Australia. When you fly from Denver to the Perth Airport (PER), you're unlikely to find a flight with fewer than two stops. Air New Zealand and Alaska Airlines, among others, have flights from Denver to Perth that stop in places such as Los Angeles, Hong Kong, Auckland, Brisbane, Singapore, and Fiji .
  • Located southwest of Sydney, Canberra is not only the largest inland city in Australia, but it is also Australia's capital. To find the best prices on a ticket from Denver to the Canberra Airport (CBR), you'll most likely be booking a flight on several airlines with at least three stops. For instance, a flight on Alaska Airlines, Fiji Airways, and Jetstar that stops in Los Angles, Fiji, and Brisbane is a competitively-priced ticket.

Top 3 airlines serving from Denver to Australia

 
Need help choosing which airline to fly with from Denver to Australia? 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.
7.5
Qantas AirwaysOverall score based on 854 reviews
6.9Food
7.4Comfort
7.1Entertainment
7.7Boarding
8.2Crew
Airline reviews

Was bumped to a later flight because of inefficiency on part of the airline.

4.0 OkayAnonymous, May 2025SYD - ADL
Read more Qantas Airways reviews

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

Everything you need to know for your flight from Denver to Australia

Information on your arrival and departure airports

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