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 43m on average. If you fly from Colorado Springs (another popular airport in Colorado) to Sydney, then the average flight time is 23h 27m.

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

Fiji Airways, China Eastern, 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 November 2025, 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.

$794 Cheap Flights from Colorado to Australia in 2025/26

1 adult

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Find the cheapest flights from Colorado to Australia

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

19:05 - 11:50DEN-ADL

25h 15m2 stops

19:00 - 16:34ADL-DEN

37h 04m2 stops

$1,250Air Canada

Find Deal

Sun, 5 Apr - Sat, 18 Apr

19:05 - 16:20DEN-ADL

27h 45m2 stops

16:30 - 12:38ADL-DEN

35h 38m2 stops

$1,253Air Canada

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Thu, 22 Jan - Sat, 18 Apr

07:10 - 10:20DEN-BNE

34h 10m2 stops

11:50 - 20:02BNE-DEN

25h 12m2 stops

$1,459Multiple Airlines

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Mon, 2 Feb - Mon, 16 Feb

10:00 - 09:00DEN-SYD

29h 00m2 stops

17:45 - 00:17SYD-DEN

24h 32m1 stop

$1,583Multiple Airlines

Find Deal

Tue, 2 Dec - Fri, 12 Dec

18:53 - 22:25DEN-SYD

34h 32m2 stops

13:15 - 19:53SYD-DEN

22h 38m2 stops

$1,780Fiji Airways

Find Deal

Thu, 2 Apr - Sat, 18 Apr

18:52 - 11:45DEN-SYD

24h 53m2 stops

13:15 - 19:53SYD-DEN

22h 38m2 stops

$1,822Fiji Airways

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Sat, 18 Apr - Tue, 5 May

20:30 - 09:30DEN-ADL

43h 30m2 stops

14:55 - 22:44ADL-DEN

25h 19m1 stop

$1,870United Airlines

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Fri, 13 Feb - Mon, 2 Mar

21:20 - 09:30DEN-ADL

42h 40m1 stop

14:55 - 00:58ADL-DEN

27h 33m1 stop

$1,876United Airlines

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Fri, 13 Feb - Mon, 2 Mar

16:05 - 09:55DEN-BNE

24h 50m2 stops

11:10 - 18:11BNE-DEN

24h 01m2 stops

$1,914Air New Zealand

Find Deal

Tue, 25 Nov - Thu, 25 Dec

11:30 - 08:45DEN-SYD

27h 15m2 stops

13:55 - 18:19SYD-DEN

22h 24m2 stops

$1,920Air New Zealand

Find Deal

Sat, 6 Dec - Sun, 21 Dec

Fiji Airways flights from Colorado to Australia

Our best Fiji Airways deals on Colorado to Australia flight tickets

Fiji Airways

2 Apr

DEN18:53Denver Intl

34h 32m

2 stops

SYD22:25Sydney Kingsford Smith

18 Apr

SYD13:15Sydney Kingsford Smith

22h 38m

2 stops

DEN19:53Denver Intl

$1,780

Find similar

Fiji Airways

18 Apr

DEN18:52Denver Intl

24h 53m

2 stops

SYD11:45Sydney Kingsford Smith

5 May

SYD13:15Sydney Kingsford Smith

22h 38m

2 stops

DEN19:53Denver Intl

$1,822

Find similar

Fiji Airways

14 Apr

DEN18:52Denver Intl

24h 53m

2 stops

SYD11:45Sydney Kingsford Smith

21 Apr

SYD06:00Sydney Kingsford Smith

29h 53m

2 stops

DEN19:53Denver Intl

$1,870

Find similar

Qantas Airways flights from Colorado to Australia

Our best Qantas Airways deals on Colorado to Australia flight tickets

Qantas Airways

23 Jan

DEN19:23Denver Intl

19h 37m

1 stop

SYD09:00Sydney Kingsford Smith

4 Feb

SYD17:45Sydney Kingsford Smith

19h 08m

1 stop

DEN18:53Denver Intl

$1,970

Find similar

Qantas Airways

29 Jan

DEN19:23Denver Intl

20h 07m

1 stop

MEL09:30Melbourne

30 Apr

MEL09:45Melbourne

22h 19m

1 stop

DEN16:04Denver Intl

$1,977

Find similar

Qantas Airways

29 Jan

DEN19:23Denver Intl

20h 07m

1 stop

MEL09:30Melbourne

1 May

MEL09:45Melbourne

22h 19m

1 stop

DEN16:04Denver Intl

$2,097

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Sun 5/4

19:05-11:50

2 stops25h 15m

Adelaide

Sat 18/4

19:00-16:34

2 stops37h 04m

$1,250

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Thu 22/1

19:05-16:20

2 stops27h 45m

Adelaide

Sat 18/4

16:30-12:38

2 stops35h 38m

$1,253

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Mon 2/2

07:10-10:20

2 stops34h 10m

Brisbane

Mon 16/2

11:50-20:02

2 stops25h 12m

$1,459

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/12

10:00-09:00

2 stops29h 00m

Sydney Kingsford Smith

Fri 12/12

17:45-00:17

1 stop24h 32m

$1,583

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 2/4

18:53-22:25

2 stops34h 32m

Sydney Kingsford Smith

Sat 18/4

13:15-19:53

2 stops22h 38m

$1,780

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 18/4

18:52-11:45

2 stops24h 53m

Sydney Kingsford Smith

Tue 5/5

13:15-19:53

2 stops22h 38m

$1,822

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Fri 13/2

20:30-09:30

2 stops43h 30m

Adelaide

Mon 2/3

14:55-22:44

1 stop25h 19m

$1,870

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Fri 13/2

21:20-09:30

1 stop42h 40m

Adelaide

Mon 2/3

14:55-00:58

1 stop27h 33m

$1,876

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 25/11

16:05-09:55

2 stops24h 50m

Brisbane

Thu 25/12

11:10-18:11

2 stops24h 01m

$1,914

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 6/12

11:30-08:45

2 stops27h 15m

Sydney Kingsford Smith

Sun 21/12

13:55-18:19

2 stops22h 24m

$1,920

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 $1,330. 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 $1,330.

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 $1,752. 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 $2,380. 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 $1,443. 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 $2,150. 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 $1,584 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 $1,394 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 22% 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

Direct flights	None

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

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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 November 2025, 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
American Airlines	PriceFrom $307	Free cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights
Qantas Airways	PriceFrom $1,018	Free cancellation	Rating 7.5 930 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.