What is the cheapest airline that flies from Colorado to Australia?

China Eastern, Turkish Airlines, and United Airlines are the most popular carriers operating from Colorado to Australia

How long is the flight from Colorado to Australia?

The flight from Colorado to Australia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Aspen (a popular airport in Colorado) to Sydney (the most popular airport in Australia), then the flight time is 19h 48m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Sydney, then the average flight time is 22h 10m.

When did momondo last update prices for flights from Colorado to Australia?

Prices for flights from Colorado to Australia are refreshed on a daily basis.

How many operators does momondo search for flights from Colorado to Australia?

As of August 2026, there is 1 operator available to choose from for flights from Colorado to Australia.

How old do you have to be to fly from Colorado to Australia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Australia.

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

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$775 Cheap Flights from Colorado to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:30 - 22:05DEN Denver Intl-SYD Sydney Kingsford Smith

46h 35m2 stops Los Angeles Los Angeles Nadi

06:00 - 00:25SYD Sydney Kingsford Smith-DEN Denver Intl

36h 25m2 stops Nadi Los Angeles Los Angeles

$1,382Multiple Airlines

Sat, 24 Oct - Mon, 9 Nov

13:10 - 11:50DEN Denver Intl-SYD Sydney Kingsford Smith

30h 40m2 stops Los Angeles Los Angeles Nadi

06:15 - 23:44SYD Sydney Kingsford Smith-DEN Denver Intl

33h 29m3 stops Nadi Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,417Multiple Airlines

Sat, 19 Sep - Tue, 29 Sep

06:25 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

36h 10m2 stops Los Angeles Los Angeles Nadi

14:00 - 23:28SYD Sydney Kingsford Smith-DEN Denver Intl

27h 28m2 stops Nadi Los Angeles Los Angeles

$1,420Multiple Airlines

Wed, 9 Dec - Wed, 16 Dec

06:30 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

32h 00m1 stop Los Angeles Los Angeles

14:00 - 09:55SYD Sydney Kingsford Smith-DEN Denver Intl

36h 55m2 stops Nadi Los Angeles Los Angeles

$1,447Multiple Airlines

Thu, 22 Oct - Thu, 29 Oct

12:02 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

30h 33m2 stops Los Angeles Los Angeles Nadi

14:00 - 00:25SYD Sydney Kingsford Smith-DEN Denver Intl

28h 25m2 stops Nadi Los Angeles Los Angeles

$1,449Multiple Airlines

Sun, 8 Nov - Mon, 16 Nov

22:29 - 06:25DEN Denver Intl-SYD Sydney Kingsford Smith

38h 56m1 stop Los Angeles Los Angeles

14:00 - 09:55SYD Sydney Kingsford Smith-DEN Denver Intl

37h 55m2 stops Nadi Los Angeles Los Angeles

$1,450Multiple Airlines

Sat, 24 Oct - Tue, 10 Nov

12:02 - 22:05DEN Denver Intl-SYD Sydney Kingsford Smith

40h 03m2 stops Los Angeles Los Angeles Nadi

14:00 - 00:25SYD Sydney Kingsford Smith-DEN Denver Intl

28h 25m2 stops Nadi Los Angeles Los Angeles

$1,456Multiple Airlines

Fri, 6 Nov - Mon, 16 Nov

12:02 - 06:25DEN Denver Intl-SYD Sydney Kingsford Smith

24h 23m1 stop Los Angeles Los Angeles

14:00 - 09:55SYD Sydney Kingsford Smith-DEN Denver Intl

37h 55m2 stops Nadi Los Angeles Los Angeles

$1,468Multiple Airlines

Sun, 8 Nov - Mon, 16 Nov

13:26 - 05:00COS Colorado Springs-MEL Melbourne

22h 34m1 stop Dallas/Fort Worth

13:55 - 13:00MEL Melbourne-COS Colorado Springs

40h 05m2 stops Auckland Intl Dallas/Fort Worth

$2,392Qantas Airways

Sat, 10 Oct - Sat, 31 Oct

12:19 - 14:05DEN Denver Intl-AVV Melbourne Avalon

31h 46m2 stops Los Angeles Los Angeles Sydney Kingsford Smith

08:10 - 16:21AVV Melbourne Avalon-DEN Denver Intl

26h 11m2 stops Sydney Kingsford Smith Dallas/Fort Worth

$2,536Qantas Airways

Mon, 23 Nov - Wed, 13 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

07:00 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

32h 05m1 stop Los Angeles Los Angeles

09:10 - 00:44SYD Sydney Kingsford Smith-DEN Denver Intl

31h 34m1 stop Los Angeles Los Angeles

$1,811Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

19:12 - 07:00ASE Aspen Pitkin County-SYD Sydney Kingsford Smith

19h 48m1 stop Los Angeles Los Angeles

09:30 - 20:26SYD Sydney Kingsford Smith-ASE Aspen Pitkin County

26h 56m1 stop Los Angeles Los Angeles

$1,824United Airlines

Thu, 13 Aug - Mon, 24 Aug

15:20 - 06:55ASE Aspen Pitkin County-SYD Sydney Kingsford Smith

23h 35m2 stops Denver Intl San Francisco

10:20 - 18:46SYD Sydney Kingsford Smith-ASE Aspen Pitkin County

24h 26m2 stops San Francisco Denver Intl

$1,830United Airlines

Thu, 13 Aug - Mon, 24 Aug

14:15 - 06:55ASE Aspen Pitkin County-SYD Sydney Kingsford Smith

24h 40m2 stops Denver Intl San Francisco

09:30 - 13:34SYD Sydney Kingsford Smith-ASE Aspen Pitkin County

20h 04m1 stop Los Angeles Los Angeles

$1,830United Airlines

Thu, 13 Aug - Mon, 24 Aug

08:00 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

31h 30m2 stops Portland Los Angeles Los Angeles

17:50 - 10:03SYD Sydney Kingsford Smith-DEN Denver Intl

32h 13m1 stop Los Angeles Los Angeles

$1,902Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

16:25 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

23h 05m2 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles

17:50 - 10:03SYD Sydney Kingsford Smith-DEN Denver Intl

32h 13m1 stop Los Angeles Los Angeles

$1,909Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

07:00 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

32h 05m1 stop Los Angeles Los Angeles

09:10 - 03:48SYD Sydney Kingsford Smith-DEN Denver Intl

34h 38m2 stops Los Angeles Los Angeles Las Vegas Harry Reid Intl

$1,953Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

22:39 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

40h 51m1 stop Los Angeles Los Angeles

17:50 - 10:03SYD Sydney Kingsford Smith-DEN Denver Intl

32h 13m1 stop Los Angeles Los Angeles

$1,977Multiple Airlines

Tue, 11 Aug - Tue, 18 Aug

11:40 - 14:10DEN Denver Intl-AVV Melbourne Avalon

34h 30m2 stops Los Angeles Los Angeles Sydney Kingsford Smith

20:40 - 22:41AVV Melbourne Avalon-DEN Denver Intl

42h 01m2 stops Brisbane Los Angeles Los Angeles

$4,548Qantas Airways

Sun, 16 Aug - Tue, 15 Sep

11:40 - 14:10DEN Denver Intl-AVV Melbourne Avalon

34h 30m2 stops Los Angeles Los Angeles Sydney Kingsford Smith

08:50 - 10:35AVV Melbourne Avalon-DEN Denver Intl

41h 45m2 stops Brisbane Los Angeles Los Angeles

$4,688Qantas Airways

Sun, 16 Aug - Tue, 15 Sep

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Air New Zealand flights from Colorado to Australia

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

Air New Zealand

2 Nov

DEN13:30Denver Intl

24h 30m

2 stops

BNE07:00Brisbane

16 Nov

BNE08:20Brisbane

26h 36m

2 stops

DEN17:56Denver Intl

$1,604

Air New Zealand

26 Oct

DEN16:05Denver Intl

23h 30m

2 stops

SYD08:35Sydney Kingsford Smith

11 Nov

SYD14:05Sydney Kingsford Smith

21h 51m

2 stops

DEN17:56Denver Intl

$1,609

Air New Zealand

28 Oct

DEN16:05Denver Intl

25h 30m

2 stops

SYD10:35Sydney Kingsford Smith

3 Nov

SYD09:55Sydney Kingsford Smith

27h 49m

2 stops

DEN19:44Denver Intl

$1,610

United Airlines flights from Colorado to Australia

Our best United Airlines deals on Colorado to Australia flight tickets

United Airlines

13 Aug

ASE19:12Aspen Pitkin County

19h 48m

1 stop

SYD07:00Sydney Kingsford Smith

24 Aug

SYD09:30Sydney Kingsford Smith

26h 56m

1 stop

ASE20:26Aspen Pitkin County

$1,824

United Airlines

13 Aug

ASE15:20Aspen Pitkin County

23h 35m

2 stops

SYD06:55Sydney Kingsford Smith

24 Aug

SYD10:20Sydney Kingsford Smith

24h 26m

2 stops

ASE18:46Aspen Pitkin County

$1,830

United Airlines

13 Aug

ASE14:15Aspen Pitkin County

24h 40m

2 stops

SYD06:55Sydney Kingsford Smith

24 Aug

SYD09:30Sydney Kingsford Smith

20h 04m

1 stop

ASE13:34Aspen Pitkin County

$1,831

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 24/10

06:30-22:05

2 stops46h 35m

Sydney Kingsford Smith

Mon 9/11

06:00-00:25

2 stops36h 25m

$1,382

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 19/9

13:10-11:50

2 stops30h 40m

Sydney Kingsford Smith

Tue 29/9

06:15-23:44

3 stops33h 29m

$1,417

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/12

06:25-12:35

2 stops36h 10m

Sydney Kingsford Smith

Wed 16/12

14:00-23:28

2 stops27h 28m

$1,420

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Thu 22/10

06:30-07:30

1 stop32h 00m

Sydney Kingsford Smith

Thu 29/10

14:00-09:55

2 stops36h 55m

$1,447

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 8/11

12:02-12:35

2 stops30h 33m

Sydney Kingsford Smith

Mon 16/11

14:00-00:25

2 stops28h 25m

$1,449

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 24/10

22:29-06:25

1 stop38h 56m

Sydney Kingsford Smith

Tue 10/11

14:00-09:55

2 stops37h 55m

$1,450

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 6/11

12:02-22:05

2 stops40h 03m

Sydney Kingsford Smith

Mon 16/11

14:00-00:25

2 stops28h 25m

$1,456

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 8/11

12:02-06:25

1 stop24h 23m

Sydney Kingsford Smith

Mon 16/11

14:00-09:55

2 stops37h 55m

$1,468

Colorado SpringsMelbourne

COS Colorado Springs - MEL Melbourne

COSMEL

Colorado Springs

Sat 10/10

13:26-05:00

1 stop22h 34m

Melbourne

Sat 31/10

13:55-13:00

2 stops40h 05m

$2,392

Fastest return journey

DenverMelbourne

DEN Denver Intl - AVV Melbourne Avalon

DENAVV

Denver Intl

Mon 23/11

12:19-14:05

2 stops31h 46m

Melbourne Avalon

Wed 13/1

08:10-16:21

2 stops26h 11m

$2,536

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado 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

Other information

What is the cheapest month to fly to Australia?

In general, April is the cheapest month to fly from Colorado to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,609. If you don’t want to visit Australia in April, then you should wait until May to fly from Colorado, when ticket prices are also cheap, with an average price of $1,729.

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

You are more likely to see cheaper flights to Australia from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,930 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Colorado for as low as $1,512 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 15% on your flight if you consider stops on a Colorado to Australia flight.

Cheap Colorado to Australia flight deals and tips

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

Fastest flight time	19h 48m
Direct flights	None

The fastest flight from Colorado to Australia takes 19h 48m

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

Search flight deals

Frequently asked questions about flying from Colorado to Australia

When did momondo last update prices for flights from Colorado to Australia?
Prices for flights from Colorado to Australia are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Australia?
As of August 2026, there is 1 operator available to choose from for flights from Colorado to Australia.
How old do you have to be to fly from Colorado to Australia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Colorado to Australia

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

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $1,278	Free cancellation	Rating 7.5 1,081 reviews		Search Qantas Airways flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Colorado to Australia. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Australia from Colorado with this policy.

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

Once you have performed a search for Colorado to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Colorado 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.