How long is the flight from Colorado to Australia?

Flight times from Colorado to Australia vary, but if you’re flying out of Colorado Springs and flying into Sydney (one of the most popular routes), then the duration is 23h 13m on average. Another popular route from Colorado to Australia is flying from Denver to Sydney, which will take roughly 25h 02m. Keep in mind that layovers or delays could extend your travel time.

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

American Airlines, Qantas Airways, and United Airlines are the most popular carriers operating from Colorado 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 Colorado according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 8 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 Colorado to Australia?

Prices for flights from Colorado to Australia refresh daily.

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

As of May 2026, there are 8 operators available to choose from for flights from Colorado to Australia.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 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.

$485 Cheap Flights from Colorado to Australia in 2026

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Find the cheapest flights from Colorado to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:41 pm - 7:05 am

DEN

SYD

26h 24m

1 stop

9:10 am - 5:37 pm

SYD

DEN

24h 27m

1 stop

$1,007American Airlines

Wed, May 13 - Mon, May 25

6:19 pm - 7:05 am

DEN

SYD

20h 46m

1 stop

9:10 am - 5:20 pm

SYD

DEN

24h 10m

2 stops

$1,011American Airlines

Wed, May 13 - Mon, May 25

12:32 pm - 11:50 am

DEN

SYD

31h 18m

2 stops

1:15 pm - 3:56 am

SYD

DEN

30h 41m

3 stops

$1,059Multiple Airlines

Mon, Jul 27 - Mon, Aug 3

6:00 am - 12:00 pm

DEN

MEL

38h 00m

3 stops

1:25 pm - 12:38 am

MEL

DEN

27h 13m

2 stops

$1,099Multiple Airlines

Sat, May 16 - Sun, May 24

6:58 pm - 7:00 am

ASE

SYD

20h 02m

1 stop

10:20 am - 7:57 pm

SYD

ASE

25h 37m

1 stop

$1,340United Airlines

Thu, Aug 13 - Sat, Aug 22

6:58 pm - 7:00 am

ASE

SYD

20h 02m

1 stop

9:30 am - 1:36 pm

SYD

ASE

20h 06m

1 stop

$1,341United Airlines

Thu, Aug 13 - Sat, Aug 22

3:45 pm - 10:55 am

DEN

ADL

27h 40m

2 stops

5:10 pm - 12:13 pm

ADL

DEN

34h 33m

2 stops

$1,531Air New Zealand

Mon, Sep 14 - Sun, Sep 27

4:20 pm - 10:55 am

DEN

ADL

27h 05m

2 stops

7:10 pm - 12:13 pm

ADL

DEN

32h 33m

2 stops

$1,532Air New Zealand

Mon, Sep 14 - Sun, Sep 27

7:00 am - 6:45 pm

DEN

PER

44h 45m

2 stops

10:45 pm - 8:30 pm

PER

DEN

36h 45m

2 stops

$1,665Qatar Airways

Mon, Nov 2 - Mon, Nov 9

12:39 pm - 5:05 pm

DEN

ADL

35h 56m

2 stops

10:00 pm - 8:13 pm

ADL

DEN

39h 43m

2 stops

$1,676Qatar Airways

Sat, Oct 31 - Wed, Nov 4

American Airlines flights from Colorado to Australia

Our best American Airlines deals on Colorado to Australia flight tickets

American Airlines

May 13

DEN12:41 pmDenver Intl

26h 24m

1 stop

SYD7:05 amSydney Kingsford Smith

May 25

SYD9:10 amSydney Kingsford Smith

24h 27m

1 stop

DEN5:37 pmDenver Intl

$1,007

American Airlines

May 13

DEN6:19 pmDenver Intl

20h 46m

1 stop

SYD7:05 amSydney Kingsford Smith

May 25

SYD9:10 amSydney Kingsford Smith

24h 10m

2 stops

DEN5:20 pmDenver Intl

$1,011

American Airlines

Jun 30

DEN11:31 amDenver Intl

27h 34m

1 stop

SYD7:05 amSydney Kingsford Smith

Jul 16

SYD9:10 amSydney Kingsford Smith

18h 04m

1 stop

DEN11:14 amDenver Intl

$1,057

United Airlines flights from Colorado to Australia

Our best United Airlines deals on Colorado to Australia flight tickets

United Airlines

Aug 13

ASE6:58 pmAspen Pitkin County

20h 02m

1 stop

SYD7:00 amSydney Kingsford Smith

Aug 22

SYD10:20 amSydney Kingsford Smith

25h 37m

1 stop

ASE7:57 pmAspen Pitkin County

$1,340

United Airlines

Aug 13

ASE6:58 pmAspen Pitkin County

20h 02m

1 stop

SYD7:00 amSydney Kingsford Smith

Aug 22

SYD9:30 amSydney Kingsford Smith

20h 06m

1 stop

ASE1:36 pmAspen Pitkin County

$1,341

United Airlines

Aug 13

ASE3:25 pmAspen Pitkin County

23h 35m

2 stops

SYD7:00 amSydney Kingsford Smith

Aug 22

SYD9:30 amSydney Kingsford Smith

21h 38m

2 stops

ASE3:08 pmAspen Pitkin County

$1,344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 5/13

12:41 pm-7:05 am

1 stop26h 24m

Sydney Kingsford Smith

Mon 5/25

9:10 am-5:37 pm

1 stop24h 27m

$1,007

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 5/13

6:19 pm-7:05 am

1 stop20h 46m

Sydney Kingsford Smith

Mon 5/25

9:10 am-5:20 pm

2 stops24h 10m

$1,011

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 7/27

12:32 pm-11:50 am

2 stops31h 18m

Sydney Kingsford Smith

Mon 8/3

1:15 pm-3:56 am

3 stops30h 41m

$1,059

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 5/16

6:00 am-12:00 pm

3 stops38h 00m

Melbourne

Sun 5/24

1:25 pm-12:38 am

2 stops27h 13m

$1,099

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

6:58 pm-7:00 am

1 stop20h 02m

Sydney Kingsford Smith

Sat 8/22

10:20 am-7:57 pm

1 stop25h 37m

$1,340

Quickest round-trip

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

6:58 pm-7:00 am

1 stop20h 02m

Sydney Kingsford Smith

Sat 8/22

9:30 am-1:36 pm

1 stop20h 06m

$1,341

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Mon 9/14

3:45 pm-10:55 am

2 stops27h 40m

Adelaide

Sun 9/27

5:10 pm-12:13 pm

2 stops34h 33m

$1,531

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Mon 9/14

4:20 pm-10:55 am

2 stops27h 05m

Adelaide

Sun 9/27

7:10 pm-12:13 pm

2 stops32h 33m

$1,532

DenverPerth

DEN - PER

DENPER

Denver Intl

Mon 11/2

7:00 am-6:45 pm

2 stops44h 45m

Perth

Mon 11/9

10:45 pm-8:30 pm

2 stops36h 45m

$1,665

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Sat 10/31

12:39 pm-5:05 pm

2 stops35h 56m

Adelaide

Wed 11/4

10:00 pm-8:13 pm

2 stops39h 43m

$1,676

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 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?

The month of January is, on average, the cheapest month to fly to Australia from Colorado, with most prices found around $72. If you aren’t able to travel during the month of January, then book flights to Australia from Colorado during February instead. Flights to Australia in February, while not as cheap as those in January, still average around $113.

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 $1,358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Colorado for as low as $1,160 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 35% 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	20h 02m
Direct flights	None

The fastest flight from Colorado to Australia takes 20h 02m

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

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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 refresh daily.
How many operators does momondo search for flights from Colorado to Australia?
As of May 2026, there are 8 operators available to choose from for flights from Colorado to Australia.
How old do you have to be to fly from Colorado to Australia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 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 Colorado to Australia

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $117	Free Cancellation	Rating 7.9 8,459 reviews	Search Delta flights
Fiji Airways	PriceFrom $682	Free Cancellation	Rating 8.1 240 reviews	Search Fiji Airways flights
Alaska Airlines	PriceFrom $745	Free Cancellation	Rating 7.9 12,336 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $770	Free Cancellation	Rating 7.1 11,004 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $800	Free Cancellation	Rating 7.5 1,033 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.1 11,669 reviews	Search American Airlines flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 9,690 reviews	Search United Airlines flights
Air New Zealand	PriceFrom $1,103	Free Cancellation	Rating 8.0 640 reviews	Search Air New Zealand flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado 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 Colorado to Australia for you.

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 all potential Colorado to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.