$648 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 4/6. 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

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Cheap Flights from Denver to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney3 stops$1,283
Brisbane
Brisbane1 stop$1,967
Perth
Perth2 stops$2,277
Sydney
Sydney3 stops$1,283
Brisbane
Brisbane1 stop$1,967
Perth
Perth2 stops$2,277

Book Cheap Denver to Australia Plane Tickets

 
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

Thu, 14 May - Mon, 18 May
Multiple Airlines Logo
06:00 - 11:50
DEN
-
SYD
37h 50m
3 stops
Multiple Airlines Logo
06:00 - 00:38
SYD
-
DEN
34h 38m
2 stops
$1,283Multiple Airlines
Fri, 5 Jun - Thu, 11 Jun
Multiple Airlines Logo
14:00 - 11:50
DEN
-
SYD
29h 50m
2 stops
Multiple Airlines Logo
06:00 - 00:40
SYD
-
DEN
34h 40m
2 stops
$1,304Multiple Airlines
Thu, 11 Jun - Thu, 18 Jun
Qantas Airways Logo
18:08 - 09:25
DEN
-
ADL
23h 47m
2 stops
Qantas Airways Logo
20:00 - 17:37
ADL
-
DEN
37h 07m
2 stops
$2,019Qantas Airways
Tue, 9 Jun - Tue, 16 Jun
Qantas Airways Logo
18:08 - 11:15
DEN
-
ADL
25h 37m
2 stops
Qantas Airways Logo
13:25 - 11:01
ADL
-
DEN
37h 06m
2 stops
$2,029Qantas Airways
Sun, 30 Aug - Mon, 7 Sep
Air New Zealand Logo
17:50 - 11:05
DEN
-
BNE
25h 15m
2 stops
Air New Zealand Logo
12:20 - 19:30
BNE
-
DEN
23h 10m
2 stops
$2,090Air New Zealand
Mon, 5 Oct - Mon, 19 Oct
Air Canada Logo
17:30 - 07:05
DEN
-
BNE
45h 35m
2 stops
Air Canada Logo
10:00 - 08:47
BNE
-
DEN
38h 47m
2 stops
$2,106Air Canada
Sun, 9 Aug - Sat, 19 Sep
Air New Zealand Logo
11:45 - 11:05
DEN
-
BNE
31h 20m
2 stops
Air New Zealand Logo
17:15 - 17:59
BNE
-
DEN
40h 44m
2 stops
$2,117Air New Zealand
Mon, 5 Oct - Mon, 19 Oct
Air Canada Logo
19:50 - 07:05
DEN
-
BNE
19h 15m
1 stop
Air Canada Logo
10:00 - 16:58
BNE
-
DEN
22h 58m
1 stop
$2,124Air Canada
Thu, 15 Oct - Sun, 25 Oct
Qatar Airways Logo
09:00 - 18:35
DEN
-
PER
43h 35m
2 stops
Qatar Airways Logo
15:55 - 23:48
PER
-
DEN
45h 53m
2 stops
$2,277Qatar Airways
Mon, 11 May - Mon, 25 May
Qatar Airways Logo
06:00 - 11:55
DEN
-
PER
39h 55m
2 stops
Qatar Airways Logo
22:45 - 22:46
PER
-
DEN
38h 01m
2 stops
$2,544Qatar Airways
Booking Insights

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 January, when tickets cost $101 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of return tickets is $1,020 and $518 respectively.

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 a flight from Denver to Australia, you should book around 4 weeks before departure, which saves you about 23% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Find deals

Good to know

Low seasonApril
Cheapest flight$648
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (15% 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.

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.

Reviews of the top airline flying 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 1028 reviews
7.0Food
8.1Crew
7.2Entertainment
7.7Boarding
7.5Comfort
Airline reviews

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

10.0 ExcellentAnonymous, Apr 2026
SFO - SYD
Read more Qantas Airways reviews

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

Very good overall. However, your choices of free movies was limited and there was no music Channel???

I couldn't hear all of the announcements. It was nice when they put them on the screen.

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

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.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

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.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

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

Information on your arrival and departure airports

Denver (DEN)