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 20h 15m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Sydney, then the average flight time is 27h 20m.

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 March 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.

$592 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.

07:20 - 11:50

DEN

SYD

36h 30m

2 stops

13:15 - 20:06

SYD

DEN

22h 51m

2 stops

$1,247Multiple Airlines

Tue, 26 May - Tue, 2 Jun

07:00 - 11:50

DEN

SYD

36h 50m

2 stops

06:00 - 00:38

SYD

DEN

34h 38m

2 stops

$1,264Multiple Airlines

Thu, 7 May - Thu, 14 May

06:00 - 22:10

DEN

SYD

48h 10m

2 stops

06:00 - 00:38

SYD

DEN

34h 38m

2 stops

$1,276Multiple Airlines

Mon, 4 May - Fri, 8 May

09:10 - 07:05

DEN

BNE

29h 55m

1 stop

10:00 - 08:45

BNE

DEN

38h 45m

2 stops

$1,361Air Canada

Wed, 13 May - Wed, 27 May

11:20 - 07:05

DEN

BNE

27h 45m

2 stops

10:00 - 08:45

BNE

DEN

38h 45m

2 stops

$1,362Air Canada

Wed, 13 May - Wed, 27 May

06:30 - 09:00

DEN

MEL

34h 30m

2 stops

21:30 - 18:10

MEL

DEN

36h 40m

2 stops

$1,719China Eastern

Mon, 10 Aug - Tue, 25 Aug

06:30 - 09:00

DEN

MEL

34h 30m

2 stops

21:30 - 18:10

MEL

DEN

36h 40m

2 stops

$1,722China Eastern

Mon, 10 Aug - Tue, 25 Aug

16:21 - 19:20

DEN

MEL

34h 59m

2 stops

07:30 - 19:39

MEL

DEN

28h 09m

2 stops

$1,731Fiji Airways

Sat, 8 Aug - Sat, 22 Aug

15:07 - 07:00

COS

SYD

23h 53m

2 stops

09:30 - 17:51

SYD

COS

24h 21m

2 stops

$2,027United Airlines

Sat, 19 Sep - Wed, 23 Sep

11:40 - 07:00

COS

SYD

27h 20m

2 stops

10:20 - 17:26

SYD

COS

23h 06m

2 stops

$2,069United Airlines

Sat, 9 May - Sat, 16 May

United Airlines flights from Colorado to Australia

Our best United Airlines deals on Colorado to Australia flight tickets

United Airlines

19 Sept

COS15:07Colorado Springs

23h 53m

2 stops

SYD07:00Sydney Kingsford Smith

23 Sept

SYD09:30Sydney Kingsford Smith

24h 21m

2 stops

COS17:51Colorado Springs

$2,027

United Airlines

9 May

COS11:40Colorado Springs

27h 20m

2 stops

SYD07:00Sydney Kingsford Smith

16 May

SYD10:20Sydney Kingsford Smith

23h 06m

2 stops

COS17:26Colorado Springs

$2,069

United Airlines

13 May

COS17:12Colorado Springs

21h 48m

2 stops

SYD07:00Sydney Kingsford Smith

17 May

SYD09:30Sydney Kingsford Smith

24h 52m

2 stops

COS18:22Colorado Springs

$2,170

Qantas Airways flights from Colorado to Australia

Our best Qantas Airways deals on Colorado to Australia flight tickets

Qantas Airways

14 Sept

DEN18:00Denver Intl

23h 55m

2 stops

ADL09:25Adelaide

27 Sept

ADL06:00Adelaide

27h 00m

2 stops

DEN17:30Denver Intl

$2,196

Qantas Airways

6 Apr

DEN13:00Denver Intl

24h 00m

1 stop

BNE05:00Brisbane

18 Apr

BNE20:35Brisbane

31h 31m

1 stop

DEN12:06Denver Intl

$2,303

Qantas Airways

27 Mar

DEN13:00Denver Intl

24h 00m

1 stop

BNE05:00Brisbane

20 Apr

BNE20:35Brisbane

31h 31m

1 stop

DEN12:06Denver Intl

$2,660

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 26/5

07:20-11:50

2 stops36h 30m

Sydney Kingsford Smith

Tue 2/6

13:15-20:06

2 stops22h 51m

$1,247

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/5

07:00-11:50

2 stops36h 50m

Sydney Kingsford Smith

Thu 14/5

06:00-00:38

2 stops34h 38m

$1,264

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 4/5

06:00-22:10

2 stops48h 10m

Sydney Kingsford Smith

Fri 8/5

06:00-00:38

2 stops34h 38m

$1,276

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Wed 13/5

09:10-07:05

1 stop29h 55m

Brisbane

Wed 27/5

10:00-08:45

2 stops38h 45m

$1,361

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Wed 13/5

11:20-07:05

2 stops27h 45m

Brisbane

Wed 27/5

10:00-08:45

2 stops38h 45m

$1,362

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 10/8

06:30-09:00

2 stops34h 30m

Melbourne

Tue 25/8

21:30-18:10

2 stops36h 40m

$1,719

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 10/8

06:30-09:00

2 stops34h 30m

Melbourne

Tue 25/8

21:30-18:10

2 stops36h 40m

$1,722

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 8/8

16:21-19:20

2 stops34h 59m

Melbourne

Sat 22/8

07:30-19:39

2 stops28h 09m

$1,731

Fastest return journey

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 19/9

15:07-07:00

2 stops23h 53m

Sydney Kingsford Smith

Wed 23/9

09:30-17:51

2 stops24h 21m

$2,027

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 9/5

11:40-07:00

2 stops27h 20m

Sydney Kingsford Smith

Sat 16/5

10:20-17:26

2 stops23h 06m

$2,069

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

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 $1,683. If you don’t want to visit Australia in April, then you should wait until March to fly from Colorado, when ticket prices are also cheap, with an average price of $1,764.

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 $1,967 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 $1,659 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 36% 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 15m
Direct flights	None

The fastest flight from Colorado to Australia takes 19h 15m

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 March 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 $1,304	Free cancellation	Rating 7.5 1,011 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.