What is the cheapest airline that flies from Denver Intl to Australia?

Cathay Pacific and United Airlines are the most popular carriers operating from Denver Intl to Australia

What airlines fly to Australia?

United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to Australia from Denver according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 7 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Denver Intl Airport to Australia?

Prices for flights from Denver Intl Airport to Australia are refreshed on a daily basis.

How many operators does momondo search for flights from Denver Intl Airport to Australia?

The number of operators available for flights from Denver Intl Airport to Australia is 7 as of September 2026.

How old do you have to be to fly from Denver Intl Airport to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$486 Cheap Flights from Denver to Australia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:10 pm - 12:25 pmDEN Denver Intl-MEL Melbourne

29h 15m2 stops Los Angeles Nadi

1:45 pm - 7:51 pmMEL Melbourne-DEN Denver Intl

24h 06m2 stops Nadi Los Angeles

$932Multiple Airlines

Wed, Nov 11 - Wed, Dec 2

1:10 pm - 12:35 pmDEN Denver Intl-SYD Sydney Kingsford Smith

30h 25m2 stops Los Angeles Nadi

6:00 am - 11:49 pmSYD Sydney Kingsford Smith-DEN Denver Intl

35h 49m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$965Multiple Airlines

Mon, Oct 26 - Wed, Nov 11

3:58 pm - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

24h 37m2 stops San Francisco Auckland Intl

11:50 am - 5:50 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 00m2 stops Auckland Intl Los Angeles

$1,138Air New Zealand

Tue, Feb 23 - Tue, Mar 16

7:45 am - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 50m2 stops San Francisco Auckland Intl

11:50 am - 6:18 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 28m2 stops Auckland Intl San Francisco

$1,138Air New Zealand

Mon, Feb 1 - Wed, Feb 10

6:51 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 09m1 stop Los Angeles

11:15 am - 11:45 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 30m1 stop Los Angeles

$1,265American Airlines

Fri, Nov 20 - Thu, Nov 26

6:51 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 09m1 stop Los Angeles

11:15 am - 6:07 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 52m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,269American Airlines

Fri, Nov 20 - Thu, Nov 26

7:00 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 35m1 stop Vancouver Intl

11:20 am - 12:43 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 23m1 stop Vancouver Intl

$1,401Air Canada

Sun, Oct 25 - Sun, Nov 8

7:50 pm - 7:05 amDEN Denver Intl-BNE Brisbane

19h 15m1 stop Vancouver Intl

9:45 am - 12:38 pmBNE Brisbane-DEN Denver Intl

18h 53m1 stop Vancouver Intl

$1,448Air Canada

Tue, Oct 20 - Tue, Oct 27

7:10 pm - 7:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 40m1 stop Los Angeles

10:15 am - 11:26 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$1,510Delta

Tue, Oct 13 - Tue, Oct 20

7:51 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

18h 39m1 stop Los Angeles

10:40 am - 5:25 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 45m1 stop Los Angeles

$1,510Delta

Tue, Dec 8 - Wed, Dec 23

Cheap last minute flights

Enter your travel dates to find the best prices.

1:10 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

10:10 am - 3:14 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 04m1 stop Los Angeles

$1,377Multiple Airlines

Tue, Sep 29 - Wed, Oct 14

1:10 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

6:50 pm - 9:46 amSYD Sydney Kingsford Smith-DEN Denver Intl

31h 56m2 stops Los Angeles San Francisco

$1,388Multiple Airlines

Tue, Sep 29 - Wed, Oct 14

12:25 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 25m1 stop Los Angeles

10:15 am - 6:09 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 54m1 stop Los Angeles

$1,511Delta

Tue, Sep 29 - Wed, Oct 14

5:30 am - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

33h 20m2 stops Salt Lake City Los Angeles

10:15 am - 4:56 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 41m2 stops Los Angeles Salt Lake City

$1,515Delta

Tue, Sep 29 - Wed, Oct 14

7:45 pm - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 15m1 stop Los Angeles

7:20 pm - 11:23 pmSYD Sydney Kingsford Smith-DEN Denver Intl

45h 03m2 stops Auckland Intl San Francisco

$1,539Air New Zealand

Tue, Sep 29 - Thu, Oct 15

9:18 pm - 7:30 amDEN Denver Intl-MEL Melbourne

42h 12m1 stop Los Angeles

7:10 pm - 10:27 pmMEL Melbourne-DEN Denver Intl

44h 17m2 stops Auckland Intl Los Angeles

$1,544Air New Zealand

Thu, Oct 1 - Sat, Oct 31

3:39 pm - 6:55 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 16m1 stop San Francisco

11:20 am - 4:20 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 00m1 stop San Francisco

$1,998United Airlines

Tue, Sep 29 - Wed, Oct 14

6:11 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 54m1 stop Los Angeles

10:10 am - 11:21 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$2,041Qantas Airways

Thu, Oct 1 - Thu, Oct 15

11:06 am - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 59m1 stop Los Angeles

10:10 am - 11:21 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$2,061Qantas Airways

Thu, Oct 1 - Thu, Oct 15

9:35 am - 8:15 amDEN Denver Intl-MEL Melbourne

30h 40m1 stop San Francisco

11:45 am - 8:00 pmMEL Melbourne-DEN Denver Intl

25h 15m1 stop San Francisco

$2,064United Airlines

Thu, Oct 1 - Sat, Oct 31

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Air New Zealand flights from Denver to Australia

Our best Air New Zealand deals on Denver to Australia flight tickets

Air New Zealand

Oct 28

DEN1:25 pmDenver Intl

28h 10m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 3

SYD9:55 amSydney Kingsford Smith

27h 49m

2 stops

DEN7:44 pmDenver Intl

$1,138

Air New Zealand

Nov 2

DEN1:30 pmDenver Intl

25h 25m

2 stops

MEL8:55 amMelbourne

Nov 23

MEL8:15 amMelbourne

32h 00m

2 stops

DEN10:15 pmDenver Intl

$1,168

Air New Zealand

Oct 25

DEN7:55 amDenver Intl

31h 40m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 8

SYD7:25 pmSydney Kingsford Smith

40h 31m

2 stops

DEN5:56 pmDenver Intl

$1,173

Delta flights from Denver to Australia

Our best Delta deals on Denver to Australia flight tickets

Delta

Sep 29

DEN12:25 pmDenver Intl

26h 25m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 14

SYD10:15 amSydney Kingsford Smith

24h 54m

1 stop

DEN6:09 pmDenver Intl

$1,511

Delta

Sep 29

DEN5:30 amDenver Intl

33h 20m

2 stops

SYD6:50 amSydney Kingsford Smith

Oct 14

SYD10:15 amSydney Kingsford Smith

23h 41m

2 stops

DEN4:56 pmDenver Intl

$1,515

Delta

Sep 30

DEN7:55 pmDenver Intl

18h 55m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 6

SYD10:15 amSydney Kingsford Smith

18h 11m

1 stop

DEN11:26 amDenver Intl

$1,551

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverMelbourne

DEN Denver Intl - MEL Melbourne

DENMEL

Denver Intl

Wed 11/11

1:10 pm-12:25 pm

2 stops29h 15m

Melbourne

Wed 12/2

1:45 pm-7:51 pm

2 stops24h 06m

$932

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

1:10 pm-12:35 pm

2 stops30h 25m

Sydney Kingsford Smith

Wed 11/11

6:00 am-11:49 pm

3 stops35h 49m

$965

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 2/23

3:58 pm-10:35 am

2 stops24h 37m

Sydney Kingsford Smith

Tue 3/16

11:50 am-5:50 pm

2 stops23h 00m

$1,138

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

7:45 am-10:35 am

2 stops32h 50m

Sydney Kingsford Smith

Wed 2/10

11:50 am-6:18 pm

2 stops24h 28m

$1,138

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 11/20

6:51 pm-9:00 am

1 stop20h 09m

Sydney Kingsford Smith

Thu 11/26

11:15 am-11:45 am

1 stop18h 30m

$1,265

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 11/20

6:51 pm-9:00 am

1 stop20h 09m

Sydney Kingsford Smith

Thu 11/26

11:15 am-6:07 pm

2 stops24h 52m

$1,269

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 10/25

7:00 pm-8:35 am

1 stop20h 35m

Sydney Kingsford Smith

Sun 11/8

11:20 am-12:43 pm

1 stop19h 23m

$1,401

DenverBrisbane

DEN Denver Intl - BNE Brisbane

DENBNE

Denver Intl

Tue 10/20

7:50 pm-7:05 am

1 stop19h 15m

Brisbane

Tue 10/27

9:45 am-12:38 pm

1 stop18h 53m

$1,448

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 10/13

7:10 pm-7:50 am

1 stop19h 40m

Sydney Kingsford Smith

Tue 10/20

10:15 am-11:26 am

1 stop18h 11m

$1,510

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/8

7:51 pm-8:30 am

1 stop18h 39m

Sydney Kingsford Smith

Wed 12/23

10:40 am-5:25 pm

1 stop24h 45m

$1,510

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Australia?

The month of April is, on average, the cheapest month to fly to Australia from Denver, with most prices found around $1,132. If you aren’t able to travel during the month of April, then book flights to Australia from Denver during June instead. Flights to Australia in June, while not as cheap as those in April, still average around $1,185.

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

You are more likely to see cheaper flights to Australia from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,367 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Denver for as low as $1,061 on momondo.

Can stopping save me money on Denver to Australia flights?

You could potentially save up to 14% on your flight if you consider stops on a Denver to Australia flight.

Cheap Denver to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Australia

Best Price Found	$486
Fastest flight time	19h 30m
Direct flights	None

The best one-way flight to Australia from Denver in the past 72 hours is $486. The best round-trip flight deal from Denver to Australia found on momondo in the last 72 hours is $932.

The fastest flight from Denver to Australia takes 19h 30m

There are no direct flights from Denver to Australia. There are no popular flight routes from Denver to Australia.

Search flight deals

Frequently asked questions about flying from Denver to Australia

When did momondo last update prices for flights from Denver Intl Airport to Australia?
Prices for flights from Denver Intl Airport to Australia are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Australia?
The number of operators available for flights from Denver Intl Airport to Australia is 7 as of September 2026.
How old do you have to be to fly from Denver Intl Airport to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Denver to Australia

Compare and see reviews for airlines that fly from Denver to Australia with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $117	Free Cancellation	Rating 7.8 8,607 reviews	Search Delta flights
Fiji Airways	PriceFrom $682	Free Cancellation	Rating 8.0 259 reviews	Search Fiji Airways flights
Air Canada	PriceFrom $770	Free Cancellation	Rating 7.1 11,696 reviews	Search Air Canada flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.0 12,098 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $847	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,243 reviews	Search United Airlines flights
Air New Zealand	PriceFrom $1,033	Free Cancellation	Rating 8.0 670 reviews	Search Air New Zealand flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Australia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Australia for you.

Can I find flights from Denver to Australia with flexible booking policies on momondo?

Yes. All flights to Australia from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Denver to Australia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Denver to Australia.

I’m not ready to book a flight from Denver to Australia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Denver to Australia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Australia and let you know when they change.