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

Delta, American 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 Denver (a popular airport in Colorado) to Sydney (the most popular airport in Australia), then the flight time is 19h 24m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Sydney, then the average flight time is 25h 25m.

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 May 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.

$744 Cheap Flights from Colorado to Australia in 2026

1 adult

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Find the cheapest flights from Colorado to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:08 - 07:05

DEN

SYD

20h 57m

1 stop

09:10 - 11:01

SYD

DEN

17h 51m

1 stop

$1,389American Airlines

Tue, 2 Jun - Tue, 16 Jun

13:15 - 06:50

DEN

SYD

25h 35m

1 stop

09:15 - 11:34

SYD

DEN

18h 19m

1 stop

$1,393Delta

Tue, 2 Jun - Tue, 16 Jun

07:00 - 12:00

DEN

MEL

37h 00m

2 stops

13:30 - 00:40

MEL

DEN

27h 10m

2 stops

$1,411Multiple Airlines

Sat, 15 Aug - Sat, 22 Aug

12:32 - 12:00

DEN

MEL

31h 28m

2 stops

13:30 - 00:40

MEL

DEN

27h 10m

2 stops

$1,451Multiple Airlines

Sat, 8 Aug - Thu, 20 Aug

18:58 - 07:00

ASE

SYD

20h 02m

1 stop

10:20 - 19:57

SYD

ASE

25h 37m

1 stop

$1,737Air New Zealand

Thu, 13 Aug - Sat, 22 Aug

19:12 - 07:00

ASE

SYD

19h 48m

1 stop

10:20 - 19:52

SYD

ASE

25h 32m

1 stop

$1,738Air New Zealand

Thu, 13 Aug - Sat, 22 Aug

15:25 - 07:00

ASE

SYD

23h 35m

2 stops

09:30 - 14:23

SYD

ASE

20h 53m

2 stops

$1,745United Airlines

Thu, 13 Aug - Sat, 22 Aug

15:25 - 07:00

ASE

SYD

23h 35m

2 stops

09:30 - 13:36

SYD

ASE

20h 06m

1 stop

$1,746United Airlines

Thu, 13 Aug - Sat, 22 Aug

11:21 - 08:45

DEN

BNE

28h 24m

2 stops

10:45 - 16:28

BNE

DEN

22h 43m

1 stop

$2,011Air Canada

Tue, 3 Nov - Tue, 24 Nov

09:10 - 13:55

DEN

ADL

37h 15m

2 stops

19:00 - 17:13

ADL

DEN

37h 43m

2 stops

$2,210Air Canada

Thu, 2 Jul - Mon, 27 Jul

Air Canada flights from Colorado to Australia

Our best Air Canada deals on Colorado to Australia flight tickets

Air Canada

3 Nov

DEN11:21Denver Intl

28h 24m

2 stops

BNE08:45Brisbane

24 Nov

BNE10:45Brisbane

22h 43m

1 stop

DEN16:28Denver Intl

$2,011

Air Canada

5 Oct

DEN17:30Denver Intl

45h 35m

2 stops

BNE07:05Brisbane

19 Oct

BNE10:00Brisbane

38h 47m

2 stops

DEN08:47Denver Intl

$2,039

Air Canada

5 Oct

DEN17:30Denver Intl

45h 35m

2 stops

BNE07:05Brisbane

19 Oct

BNE10:00Brisbane

38h 47m

2 stops

DEN08:47Denver Intl

$2,040

American Airlines flights from Colorado to Australia

Our best American Airlines deals on Colorado to Australia flight tickets

American Airlines

2 June

DEN18:08Denver Intl

20h 57m

1 stop

SYD07:05Sydney Kingsford Smith

16 June

SYD09:10Sydney Kingsford Smith

17h 51m

1 stop

DEN11:01Denver Intl

$1,389

American Airlines

2 June

DEN18:08Denver Intl

20h 57m

1 stop

SYD07:05Sydney Kingsford Smith

16 June

SYD09:10Sydney Kingsford Smith

24h 10m

2 stops

DEN17:20Denver Intl

$1,395

American Airlines

24 Aug

DEN18:26Denver Intl

22h 54m

2 stops

SYD09:20Sydney Kingsford Smith

6 Sept

SYD09:10Sydney Kingsford Smith

24h 46m

1 stop

DEN17:56Denver Intl

$1,418

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/6

18:08-07:05

1 stop20h 57m

Sydney Kingsford Smith

Tue 16/6

09:10-11:01

1 stop17h 51m

$1,389

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/6

13:15-06:50

1 stop25h 35m

Sydney Kingsford Smith

Tue 16/6

09:15-11:34

1 stop18h 19m

$1,393

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 15/8

07:00-12:00

2 stops37h 00m

Melbourne

Sat 22/8

13:30-00:40

2 stops27h 10m

$1,411

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 8/8

12:32-12:00

2 stops31h 28m

Melbourne

Thu 20/8

13:30-00:40

2 stops27h 10m

$1,451

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

18:58-07:00

1 stop20h 02m

Sydney Kingsford Smith

Sat 22/8

10:20-19:57

1 stop25h 37m

$1,737

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

19:12-07:00

1 stop19h 48m

Sydney Kingsford Smith

Sat 22/8

10:20-19:52

1 stop25h 32m

$1,738

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

15:25-07:00

2 stops23h 35m

Sydney Kingsford Smith

Sat 22/8

09:30-14:23

2 stops20h 53m

$1,745

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

15:25-07:00

2 stops23h 35m

Sydney Kingsford Smith

Sat 22/8

09:30-13:36

1 stop20h 06m

$1,746

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 3/11

11:21-08:45

2 stops28h 24m

Brisbane

Tue 24/11

10:45-16:28

1 stop22h 43m

$2,011

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Thu 2/7

09:10-13:55

2 stops37h 15m

Adelaide

Mon 27/7

19:00-17:13

2 stops37h 43m

$2,210

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, January 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 $99. If you don’t want to visit Australia in January, then you should wait until February to fly from Colorado, when ticket prices are also cheap, with an average price of $156.

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 $1,837 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 $1,559 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 29% 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	22h 10m
Direct flights	None

The fastest flight from Colorado to Australia takes 22h 10m

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 are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Australia?
As of May 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 $1,245	Free cancellation	Rating 7.5 1,034 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.