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 24h 10m.

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

United Airlines, Cathay Pacific, and Qantas Airways are the most popular carriers operating 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 September 2026, there are 2 operators 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.

$694 Cheap Flights from Colorado to Australia in 2026/27

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.

09:00 - 12:45DEN Denver Intl-MEL Melbourne

34h 45m2 stops Los Angeles Nadi

13:35 - 18:10MEL Melbourne-DEN Denver Intl

46h 35m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,378Multiple Airlines

Mon, 26 Oct - Mon, 9 Nov

09:00 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

34h 35m2 stops Los Angeles Nadi

14:00 - 18:10SYD Sydney Kingsford Smith-DEN Denver Intl

46h 10m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,432Multiple Airlines

Mon, 26 Oct - Mon, 9 Nov

13:10 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

29h 25m2 stops Los Angeles Nadi

14:00 - 12:42SYD Sydney Kingsford Smith-DEN Denver Intl

40h 42m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,442Multiple Airlines

Mon, 2 Nov - Mon, 9 Nov

13:10 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

29h 25m2 stops Los Angeles Nadi

14:00 - 09:40SYD Sydney Kingsford Smith-DEN Denver Intl

37h 40m3 stops Nadi Los Angeles San Francisco

$1,515Multiple Airlines

Sun, 1 Nov - Sat, 7 Nov

13:29 - 07:00DEN Denver Intl-BNE Brisbane

24h 31m2 stops Los Angeles Auckland Intl

11:15 - 22:01BNE Brisbane-DEN Denver Intl

27h 46m2 stops Auckland Intl Los Angeles

$1,628Air New Zealand

Mon, 25 Jan - Wed, 17 Feb

13:29 - 07:00DEN Denver Intl-BNE Brisbane

24h 31m2 stops Los Angeles Auckland Intl

11:15 - 22:01BNE Brisbane-DEN Denver Intl

27h 46m2 stops Auckland Intl Los Angeles

$1,628Air New Zealand

Mon, 25 Jan - Mon, 15 Feb

19:45 - 07:00DEN Denver Intl-BNE Brisbane

42h 15m2 stops Los Angeles Auckland Intl

18:10 - 19:30BNE Brisbane-DEN Denver Intl

42h 20m2 stops Auckland Intl Los Angeles

$1,632Air New Zealand

Sat, 30 Jan - Sat, 13 Feb

18:46 - 09:00DEN Denver Intl-SYD Sydney Kingsford Smith

20h 14m1 stop Los Angeles

11:10 - 11:45SYD Sydney Kingsford Smith-DEN Denver Intl

18h 35m1 stop Los Angeles

$2,300Qantas Airways

Tue, 17 Nov - Tue, 1 Dec

12:49 - 06:25DEN Denver Intl-SYD Sydney Kingsford Smith

24h 36m1 stop Los Angeles

10:10 - 12:19SYD Sydney Kingsford Smith-DEN Denver Intl

19h 09m1 stop Los Angeles

$2,315Qantas Airways

Wed, 17 Mar - Wed, 31 Mar

19:59 - 23:15DEN Denver Intl-AVV Melbourne Avalon

33h 16m2 stops Los Angeles Sydney Kingsford Smith

20:55 - 13:10AVV Melbourne Avalon-DEN Denver Intl

34h 15m2 stops Sydney Kingsford Smith Los Angeles

$2,646Qantas Airways

Thu, 24 Dec - Sun, 10 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:10 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

09:10 - 17:32SYD Sydney Kingsford Smith-DEN Denver Intl

24h 22m1 stop Los Angeles

$1,709Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

12:42 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

26h 23m1 stop Los Angeles

18:50 - 09:10SYD Sydney Kingsford Smith-DEN Denver Intl

31h 20m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,762Multiple Airlines

Wed, 23 Sep - Mon, 12 Oct

12:42 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

26h 48m1 stop Los Angeles

18:50 - 09:30SYD Sydney Kingsford Smith-DEN Denver Intl

31h 40m1 stop Los Angeles

$1,801Multiple Airlines

Wed, 23 Sep - Tue, 13 Oct

12:42 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

26h 23m1 stop Los Angeles

10:10 - 15:14SYD Sydney Kingsford Smith-DEN Denver Intl

22h 04m1 stop Los Angeles

$1,823Multiple Airlines

Wed, 23 Sep - Mon, 12 Oct

17:40 - 07:00DEN Denver Intl-SYD Sydney Kingsford Smith

21h 20m1 stop Los Angeles

11:55 - 21:13SYD Sydney Kingsford Smith-DEN Denver Intl

26h 18m2 stops Auckland Intl Los Angeles

$2,069Air New Zealand

Sun, 27 Sep - Thu, 15 Oct

16:20 - 16:55DEN Denver Intl-CBR Canberra

32h 35m3 stops Houston George Bush Intcntl Auckland Intl Sydney Kingsford Smith

19:45 - 00:53CBR Canberra-DEN Denver Intl

46h 08m3 stops Brisbane Auckland Intl San Francisco

$3,282Air New Zealand

Fri, 25 Sep - Tue, 13 Oct

13:30 - 15:00DEN Denver Intl-PER Perth

35h 30m2 stops Houston George Bush Intcntl Auckland Intl

17:20 - 17:56PER Perth-DEN Denver Intl

39h 36m3 stops Melbourne Auckland Intl Los Angeles

$3,287Air New Zealand

Sat, 26 Sep - Sun, 8 Nov

11:06 - 11:05DEN Denver Intl-CBR Canberra

31h 59m2 stops Los Angeles Sydney Kingsford Smith

15:25 - 22:41CBR Canberra-DEN Denver Intl

23h 16m2 stops Sydney Kingsford Smith Los Angeles

$3,442Qantas Airways

Tue, 22 Sep - Thu, 24 Sep

17:13 - 06:55COS Colorado Springs-SYD Sydney Kingsford Smith

21h 42m1 stop Dallas/Fort Worth

12:00 - 16:43SYD Sydney Kingsford Smith-COS Colorado Springs

20h 43m1 stop Dallas/Fort Worth

$4,940Qantas Airways

Thu, 24 Sep - Thu, 1 Oct

18:11 - 12:25DEN Denver Intl-PER Perth

28h 14m2 stops Los Angeles Melbourne

10:30 - 21:55PER Perth-DEN Denver Intl

25h 25m2 stops Sydney Kingsford Smith Los Angeles

$35,042Qantas Airways

Thu, 24 Sep - Thu, 8 Oct

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United Airlines flights from Colorado to Australia

Our best United Airlines deals on Colorado to Australia flight tickets

United Airlines

17 Nov

COS17:05Colorado Springs

22h 15m

2 stops

SYD09:20Sydney Kingsford Smith

16 Dec

SYD09:15Sydney Kingsford Smith

23h 19m

2 stops

COS14:34Colorado Springs

$1,823

United Airlines

17 Nov

COS13:20Colorado Springs

25h 45m

2 stops

SYD09:05Sydney Kingsford Smith

15 Dec

SYD13:20Sydney Kingsford Smith

21h 04m

2 stops

COS16:24Colorado Springs

$1,825

United Airlines

2 Nov

COS07:35Colorado Springs

29h 25m

1 stop

SYD07:00Sydney Kingsford Smith

9 Nov

SYD09:15Sydney Kingsford Smith

20h 04m

1 stop

COS11:19Colorado Springs

$1,837

Delta flights from Colorado to Australia

Our best Delta deals on Colorado to Australia flight tickets

Delta

29 Sept

DEN12:25Denver Intl

26h 25m

1 stop

SYD06:50Sydney Kingsford Smith

13 Oct

SYD10:15Sydney Kingsford Smith

18h 11m

1 stop

DEN11:26Denver Intl

$2,119

Delta

30 Sept

DEN19:55Denver Intl

18h 55m

1 stop

SYD06:50Sydney Kingsford Smith

14 Oct

SYD10:15Sydney Kingsford Smith

29h 25m

2 stops

DEN22:40Denver Intl

$2,126

Delta

4 Oct

DEN08:06Denver Intl

30h 44m

1 stop

SYD07:50Sydney Kingsford Smith

19 Oct

SYD10:15Sydney Kingsford Smith

18h 11m

1 stop

DEN11:26Denver Intl

$2,131

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverMelbourne

DEN Denver Intl - MEL Melbourne

DENMEL

Denver Intl

Mon 26/10

09:00-12:45

2 stops34h 45m

Melbourne

Mon 9/11

13:35-18:10

3 stops46h 35m

$1,378

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 26/10

09:00-12:35

2 stops34h 35m

Sydney Kingsford Smith

Mon 9/11

14:00-18:10

3 stops46h 10m

$1,432

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/11

13:10-12:35

2 stops29h 25m

Sydney Kingsford Smith

Mon 9/11

14:00-12:42

3 stops40h 42m

$1,442

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 1/11

13:10-12:35

2 stops29h 25m

Sydney Kingsford Smith

Sat 7/11

14:00-09:40

3 stops37h 40m

$1,515

DenverBrisbane

DEN Denver Intl - BNE Brisbane

DENBNE

Denver Intl

Mon 25/1

13:29-07:00

2 stops24h 31m

Brisbane

Wed 17/2

11:15-22:01

2 stops27h 46m

$1,628

DenverBrisbane

DEN Denver Intl - BNE Brisbane

DENBNE

Denver Intl

Mon 25/1

13:29-07:00

2 stops24h 31m

Brisbane

Mon 15/2

11:15-22:01

2 stops27h 46m

$1,628

DenverBrisbane

DEN Denver Intl - BNE Brisbane

DENBNE

Denver Intl

Sat 30/1

19:45-07:00

2 stops42h 15m

Brisbane

Sat 13/2

18:10-19:30

2 stops42h 20m

$1,632

Fastest return journey

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 17/11

18:46-09:00

1 stop20h 14m

Sydney Kingsford Smith

Tue 1/12

11:10-11:45

1 stop18h 35m

$2,300

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 17/3

12:49-06:25

1 stop24h 36m

Sydney Kingsford Smith

Wed 31/3

10:10-12:19

1 stop19h 09m

$2,315

DenverMelbourne

DEN Denver Intl - AVV Melbourne Avalon

DENAVV

Denver Intl

Thu 24/12

19:59-23:15

2 stops33h 16m

Melbourne Avalon

Sun 10/1

20:55-13:10

2 stops34h 15m

$2,646

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 $1,588. If you don’t want to visit Australia in April, then you should wait until June to fly from Colorado, when ticket prices are also cheap, with an average price of $1,689.

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 $1,918 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 $1,489 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 10% 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

Best price found	$694
Fastest flight time	19h 48m
Direct flights	None

The best one-way flight to Australia from Colorado in the past 72 hours is $694. The best return flight deal from Colorado to Australia found on momondo in the last 72 hours is $1,378.

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 September 2026, there are 2 operators 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 $1,266	Free cancellation	Rating 7.5 1,102 reviews		Search Qantas Airways flights
Air New Zealand	PriceFrom $2,220	Free cancellation	Rating 8.0 669 reviews		Search Air New Zealand 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.