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

Air New Zealand, Qantas Airways, and Air Canada 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 11m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Sydney, then the average flight time is 21h 38m.

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 December 2025, 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.

$760 Cheap Flights from Colorado to Australia in 2025/26

1 adult

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Find the cheapest flights from Colorado to Australia

Round-trip

One-way

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Cheap return flights

Enter your travel dates to find the best prices.

06:05 - 12:35

DEN

SYD

36h 30m2 stops

14:00 - 23:31

SYD

DEN

27h 31m2 stops

$1,233Multiple Airlines

Fri, 23 Jan - Fri, 30 Jan

06:00 - 22:45

DEN

MEL

46h 45m2 stops

12:00 - 00:30

MEL

DEN

29h 30m1 stop

$1,366Multiple Airlines

Mon, 16 Feb - Tue, 10 Mar

19:25 - 07:45

DEN

BNE

44h 20m2 stops

09:45 - 18:06

BNE

DEN

24h 21m2 stops

$1,412Air Canada

Sun, 8 Mar - Sun, 22 Mar

19:05 - 08:45

DEN

BNE

20h 40m1 stop

10:45 - 18:05

BNE

DEN

24h 20m2 stops

$1,427Air Canada

Sun, 8 Feb - Sun, 15 Feb

19:23 - 09:00

DEN

SYD

19h 37m1 stop

11:20 - 12:17

SYD

DEN

18h 57m1 stop

$1,595Qantas Airways

Sun, 1 Feb - Sun, 15 Feb

20:19 - 06:45

DEN

MEL

42h 26m1 stop

09:45 - 16:04

MEL

DEN

22h 19m1 stop

$1,667Qantas Airways

Fri, 17 Apr - Sun, 26 Apr

17:58 - 09:30

DEN

ADL

22h 02m1 stop

14:55 - 18:23

ADL

DEN

20h 58m1 stop

$1,734United Airlines

Mon, 16 Feb - Wed, 4 Mar

12:20 - 07:00

COS

SYD

24h 40m1 stop

11:50 - 21:44

SYD

COS

26h 54m1 stop

$1,928United Airlines

Tue, 17 Feb - Tue, 10 Mar

20:04 - 22:55

DEN

PER

59h 51m2 stops

08:30 - 18:34

PER

DEN

49h 04m2 stops

$2,118Cathay Pacific

Fri, 27 Feb - Sun, 8 Mar

20:04 - 22:55

DEN

PER

59h 51m2 stops

08:30 - 18:34

PER

DEN

49h 04m2 stops

$2,120Cathay Pacific

Fri, 27 Feb - Sun, 8 Mar

Qantas Airways flights from Colorado to Australia

Our best Qantas Airways deals on Colorado to Australia flight tickets

Qantas Airways

1 Feb

DEN19:23Denver Intl

19h 37m

1 stop

SYD09:00Sydney Kingsford Smith

15 Feb

SYD11:20Sydney Kingsford Smith

18h 57m

1 stop

DEN12:17Denver Intl

$1,595

Find similar

Qantas Airways

6 Feb

DEN10:03Denver Intl

27h 22m

1 stop

SYD07:25Sydney Kingsford Smith

14 Feb

SYD17:45Sydney Kingsford Smith

36h 32m

1 stop

DEN12:17Denver Intl

$1,613

Find similar

Qantas Airways

12 Mar

DEN12:49Denver Intl

27h 11m

1 stop

SYD09:00Sydney Kingsford Smith

26 Mar

SYD17:45Sydney Kingsford Smith

18h 49m

1 stop

DEN19:34Denver Intl

$1,635

Find similar

United Airlines flights from Colorado to Australia

Our best United Airlines deals on Colorado to Australia flight tickets

United Airlines

24 Feb

DEN13:27Denver Intl

25h 03m

1 stop

BNE07:30Brisbane

17 Mar

BNE10:40Brisbane

25h 35m

1 stop

DEN20:15Denver Intl

$1,726

Find similar

United Airlines

24 Feb

DEN13:27Denver Intl

25h 03m

1 stop

BNE07:30Brisbane

17 Mar

BNE10:40Brisbane

22h 00m

1 stop

DEN16:40Denver Intl

$1,728

Find similar

United Airlines

24 Feb

DEN17:58Denver Intl

20h 32m

1 stop

BNE07:30Brisbane

17 Mar

BNE10:40Brisbane

25h 14m

2 stops

DEN19:54Denver Intl

$1,734

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 23/1

06:05-12:35

2 stops36h 30m

Sydney Kingsford Smith

Fri 30/1

14:00-23:31

2 stops27h 31m

$1,233

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 16/2

06:00-22:45

2 stops46h 45m

Melbourne

Tue 10/3

12:00-00:30

1 stop29h 30m

$1,366

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 8/3

19:25-07:45

2 stops44h 20m

Brisbane

Sun 22/3

09:45-18:06

2 stops24h 21m

$1,412

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 8/2

19:05-08:45

1 stop20h 40m

Brisbane

Sun 15/2

10:45-18:05

2 stops24h 20m

$1,427

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 1/2

19:23-09:00

1 stop19h 37m

Sydney Kingsford Smith

Sun 15/2

11:20-12:17

1 stop18h 57m

$1,595

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Fri 17/4

20:19-06:45

1 stop42h 26m

Melbourne

Sun 26/4

09:45-16:04

1 stop22h 19m

$1,667

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Mon 16/2

17:58-09:30

1 stop22h 02m

Adelaide

Wed 4/3

14:55-18:23

1 stop20h 58m

$1,734

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 17/2

12:20-07:00

1 stop24h 40m

Sydney Kingsford Smith

Tue 10/3

11:50-21:44

1 stop26h 54m

$1,928

DenverPerth

DEN - PER

DENPER

Denver Intl

Fri 27/2

20:04-22:55

2 stops59h 51m

Perth

Sun 8/3

08:30-18:34

2 stops49h 04m

$2,118

DenverPerth

DEN - PER

DENPER

Denver Intl

Fri 27/2

20:04-22:55

2 stops59h 51m

Perth

Sun 8/3

08:30-18:34

2 stops49h 04m

$2,120

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 $1,288. 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 $1,290.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Colorado is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,697. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Colorado to Australia on a Tuesday will generally be more expensive and average around $2,305. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is at midday. momondo users have found flights departing from Colorado to Australia at midday for as low as $1,398. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the evening, with an average ticket price of $2,083. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $1,603 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 $1,476 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 8% 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 11m
Direct flights	None

The fastest flight from Colorado to Australia takes 19h 11m

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

Search flight deals

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 December 2025, 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 $986	Free cancellation	Rating 7.5 953 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.