How long is the flight from Colorado to Australia?

Flight times from Colorado to Australia vary, but if you’re flying out of Denver and flying into Sydney (one of the most popular routes), then the duration is 21h 03m on average. Another popular route from Colorado to Australia is flying from Colorado Springs to Sydney, which will take roughly 23h 15m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Australia?

Qantas Airways, American Airlines and United Airlines are the top three most popular airlines that fly to Australia from Colorado according to our data. Qantas Airways is the first choice among our users, with 38% 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.

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

Air Canada, Fiji Airways, and Delta 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 refresh daily.

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

As of August 2025, 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.

$446 Cheap Flights from Colorado to Australia in 2025

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Find the cheapest flights from Colorado to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

3:43 pm - 10:35 amDEN-BNE

26h 52m2 stops

11:35 am - 12:36 amBNE-DEN

29h 01m2 stops

$895

Find Deal

vie., sep. 19 - vie., sep. 26

6:34 pm - 10:35 amDEN-BNE

24h 01m2 stops

11:35 am - 12:36 amBNE-DEN

29h 01m2 stops

$898

Find Deal

vie., sep. 19 - vie., sep. 26

11:49 am - 9:35 amDEN-SYD

27h 46m1 stop

11:20 am - 12:37 pmSYD-DEN

19h 17m1 stop

$910Air Canada

Find Deal

mar., nov. 11 - mar., nov. 25

3:53 pm - 9:35 amDEN-SYD

23h 42m1 stop

8:00 am - 12:23 pmSYD-DEN

22h 23m2 stops

$924Air Canada

Find Deal

dom., nov. 16 - dom., nov. 30

9:28 pm - 10:00 amDEN-BNE

44h 32m2 stops

11:15 am - 10:27 pmBNE-DEN

27h 12m2 stops

$1,130Air New Zealand

Find Deal

sáb., oct. 11 - lun., oct. 20

8:02 am - 8:30 amDEN-BNE

32h 28m2 stops

7:35 pm - 7:40 pmBNE-DEN

40h 05m2 stops

$1,134Air New Zealand

Find Deal

dom., sep. 7 - dom., sep. 21

6:00 am - 10:40 pmDEN-PER

50h 40m2 stops

9:15 am - 11:29 amPER-DEN

40h 14m2 stops

$1,246Cathay Pacific

Find Deal

dom., ago. 24 - dom., ago. 31

7:21 am - 6:55 amDEN-PER

33h 34m2 stops

8:30 am - 8:13 pmPER-DEN

50h 43m2 stops

$1,281Cathay Pacific

Find Deal

vie., oct. 31 - dom., nov. 23

1:00 pm - 9:30 amDEN-MEL

26h 30m1 stop

12:00 pm - 7:15 pmMEL-DEN

25h 15m1 stop

$1,313Qantas Airways

Find Deal

mar., ene. 20 - dom., feb. 1

4:45 pm - 5:00 amDEN-BNE

19h 15m1 stop

7:25 pm - 12:13 pmBNE-DEN

33h 48m1 stop

$1,326Qantas Airways

Find Deal

dom., nov. 2 - mié., nov. 19

Air Canada flights from Colorado to Australia

Our best Air Canada deals on Colorado to Australia flight tickets

Air Canada

Nov 11

DEN11:49 amDenver Intl

27h 46m

1 stop

SYD9:35 amSydney Kingsford Smith

Nov 25

SYD11:20 amSydney Kingsford Smith

19h 17m

1 stop

DEN12:37 pmDenver Intl

$910

Find similar

Air Canada

Nov 16

DEN3:53 pmDenver Intl

23h 42m

1 stop

SYD9:35 amSydney Kingsford Smith

Nov 30

SYD8:00 amSydney Kingsford Smith

22h 23m

2 stops

DEN12:23 pmDenver Intl

$924

Find similar

Air Canada

Nov 16

DEN7:05 pmDenver Intl

25h 35m

2 stops

SYD2:40 pmSydney Kingsford Smith

Nov 30

SYD9:00 amSydney Kingsford Smith

21h 23m

2 stops

DEN12:23 pmDenver Intl

$942

Find similar

Air New Zealand flights from Colorado to Australia

Our best Air New Zealand deals on Colorado to Australia flight tickets

Air New Zealand

Oct 11

DEN9:28 pmDenver Intl

44h 32m

2 stops

BNE10:00 amBrisbane

Oct 20

BNE11:15 amBrisbane

27h 12m

2 stops

DEN10:27 pmDenver Intl

$1,130

Find similar

Air New Zealand

Sep 7

DEN8:02 amDenver Intl

32h 28m

2 stops

BNE8:30 amBrisbane

Sep 21

BNE7:35 pmBrisbane

40h 05m

2 stops

DEN7:40 pmDenver Intl

$1,134

Find similar

Air New Zealand

Sep 9

DEN10:15 amDenver Intl

30h 30m

2 stops

SYD8:45 amSydney Kingsford Smith

Dec 14

SYD11:45 amSydney Kingsford Smith

36h 42m

2 stops

DEN6:27 amDenver Intl

$1,135

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

vie. 9/19

3:43 pm-10:35 am

2 stops26h 52m

Brisbane

vie. 9/26

11:35 am-12:36 am

2 stops29h 01m

$895

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

vie. 9/19

6:34 pm-10:35 am

2 stops24h 01m

Brisbane

vie. 9/26

11:35 am-12:36 am

2 stops29h 01m

$898

DenverSydney

DEN - SYD

DENSYD

Denver Intl

mar. 11/11

11:49 am-9:35 am

1 stop27h 46m

Sydney Kingsford Smith

mar. 11/25

11:20 am-12:37 pm

1 stop19h 17m

$910

DenverSydney

DEN - SYD

DENSYD

Denver Intl

dom. 11/16

3:53 pm-9:35 am

1 stop23h 42m

Sydney Kingsford Smith

dom. 11/30

8:00 am-12:23 pm

2 stops22h 23m

$924

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

sáb. 10/11

9:28 pm-10:00 am

2 stops44h 32m

Brisbane

lun. 10/20

11:15 am-10:27 pm

2 stops27h 12m

$1,130

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 9/7

8:02 am-8:30 am

2 stops32h 28m

Brisbane

dom. 9/21

7:35 pm-7:40 pm

2 stops40h 05m

$1,134

DenverPerth

DEN - PER

DENPER

Denver Intl

dom. 8/24

6:00 am-10:40 pm

2 stops50h 40m

Perth

dom. 8/31

9:15 am-11:29 am

2 stops40h 14m

$1,246

DenverPerth

DEN - PER

DENPER

Denver Intl

vie. 10/31

7:21 am-6:55 am

2 stops33h 34m

Perth

dom. 11/23

8:30 am-8:13 pm

2 stops50h 43m

$1,281

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

mar. 1/20

1:00 pm-9:30 am

1 stop26h 30m

Melbourne

dom. 2/1

12:00 pm-7:15 pm

1 stop25h 15m

$1,313

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 11/2

4:45 pm-5:00 am

1 stop19h 15m

Brisbane

mié. 11/19

7:25 pm-12:13 pm

1 stop33h 48m

$1,326

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 April is, on average, the cheapest month to fly to Australia from Colorado, with most prices found around $872. If you aren’t able to travel during the month of April, then book flights to Australia from Colorado during May instead. Flights to Australia in May, while not as cheap as those in April, still average around $890.

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

The cheapest day to depart from Colorado to Australia is on a Tuesday. Travelers who choose to depart for Australia on a Tuesday will often find tickets for as low as $1,197. On the other hand, Thursday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,362.

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

Flying to Australia from Colorado at noon is the least expensive time of day to depart. momondo users have found prices as low as $933 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,292 on average. Flights to Australia from Colorado in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $1,066 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 $920 on momondo.

Can stopping save me money on Colorado to Australia flights?

You could potentially save up to 28% 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

Best Price Found	$446
Fastest flight time	19h 15m
Direct flights	None
Airports in Australia	7 airports

The best one-way flight to Australia from Colorado in the past 72 hours is $446. The best round-trip flight deal from Colorado to Australia found on momondo in the last 72 hours is $895.

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

There are no direct flights from Colorado to Australia. Popular non-direct routes for this connection are Denver Intl Airport - Melbourne Airport, Denver Intl Airport - Adelaide Airport and Denver Intl Airport - Sydney Kingsford Smith Airport.

There are 7 airports near Australia: Melbourne Avalon (AVV), Melbourne (MEL), Hobart (HBA), Brisbane (BNE), Adelaide (ADL), Perth (PER), Sydney Kingsford Smith (SYD)

Search flight deals

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 August 2025, 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
Qantas Airways	PriceFrom $645	Free Cancellation	Rating 7.5 888 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $693	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $745	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Delta	PriceFrom $830	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights
Air New Zealand	PriceFrom $834	Free Cancellation	Rating 8.0 503 reviews	Search Air New Zealand flights
Air Canada	PriceFrom $967	Free Cancellation	Rating 7.1 9,899 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,157	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Fiji Airways	PriceFrom $1,159	Free Cancellation	Rating 8.0 202 reviews	Search Fiji Airways 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.