Australia

$446+ Cheap flights from Colorado to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Apr 2 — Apr 91
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Cheap flight deals from Colorado to Australia

Cheapest flights from Colorado to Australia
Explore the most affordable flight options available from Colorado to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2026.

This BusinessClass deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:50 pm
DEN
-
BNE
1 stop19h 15m
Multiple Airlines
Tue 7/2810:00 am
BNE
-
DEN
2 stops38h 45m
Multiple Airlines
Deal found 2/28$869
This Air Canada deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:50 pm
DEN
-
BNE
1 stop19h 15m
Air Canada
Wed 5/2710:00 am
BNE
-
DEN
1 stop23h 00m
Air Canada
Deal found 3/3$882
This Air Canada deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:05 pm
DEN
-
BNE
1 stop20h 00m
Air Canada
Mon 4/138:45 pm
BNE
-
DEN
2 stops31h 50m
Air Canada
Deal found 2/28$916
This Priceline deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2911:20 am
DEN
-
BNE
2 stops27h 45m
Air Canada
Mon 4/208:45 pm
BNE
-
DEN
2 stops31h 50m
Air Canada
Deal found 3/3$917
This Air Canada deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:50 pm
DEN
-
BNE
1 stop19h 15m
Air Canada
Fri 5/2210:00 am
BNE
-
DEN
1 stop23h 00m
Air Canada
Deal found 3/3$920
This Air Canada deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:50 pm
DEN
-
BNE
1 stop19h 15m
Air Canada
Wed 6/310:00 am
BNE
-
DEN
1 stop23h 00m
Air Canada
Deal found 2/28$938
This Air Canada deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/157:25 pm
DEN
-
BNE
2 stops44h 20m
Air Canada
Fri 3/205:35 am
BNE
-
DEN
2 stops23h 02m
Air Canada
Deal found 2/27$944
This Air Canada deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:11 pm
DEN
-
ADL
2 stops28h 09m
Multiple Airlines
Wed 4/227:35 pm
ADL
-
DEN
2 stops32h 30m
Multiple Airlines
Deal found 3/1$973
This BusinessClass deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:50 pm
DEN
-
ADL
2 stops26h 10m
Multiple Airlines
Sat 5/166:55 pm
ADL
-
DEN
2 stops33h 08m
Multiple Airlines
Deal found 2/27$1,028
This Orbitz deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:10 pm
DEN
-
ADL
3 stops52h 15m
Air Canada
Sun 8/97:00 pm
ADL
-
DEN
2 stops43h 42m
Air Canada
Deal found 3/1$1,040
This lol.travel deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:05 pm
DEN
-
SYD
1 stop20h 30m
Air Canada
Wed 4/89:20 am
SYD
-
DEN
2 stops22h 43m
Air Canada
Deal found 3/2$1,046
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:30 pm
DEN
-
SYD
2 stops46h 20m
Multiple Airlines
Wed 4/225:50 pm
SYD
-
DEN
1 stop40h 26m
Multiple Airlines
Deal found 3/1$1,080

Find flight deals from Colorado to Australia

Keep the following information in mind while searching for Colorado to Australia flight deals. Data was last updated March 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$869
(BusinessClass)

One-way from

$446
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,108
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
From Colorado to Australia
One-way flight from Colorado to Australia
Highest demand for flights based on searches. 15% potential increase in price ($235 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2026.
Use the filters below to find and compare flights from Colorado to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 3/29

7:05 pm-7:05 am

1 stop20h 00m

Brisbane

Mon 4/20

10:00 am-12:35 pm

1 stop18h 35m

$882

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Wed 5/13

7:50 pm-7:05 am

1 stop19h 15m

Brisbane

Fri 5/22

10:00 am-5:00 pm

1 stop23h 00m

$920

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Sun 4/5

4:11 pm-11:50 am

2 stops28h 09m

Adelaide

Sat 4/18

6:55 pm-5:50 pm

2 stops38h 25m

$1,089

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Fri 5/1

11:35 am-1:55 pm

3 stops34h 50m

Adelaide

Sat 5/16

5:15 pm-7:27 pm

2 stops41h 42m

$1,091

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 4/13

10:30 pm-12:00 pm

2 stops45h 30m

Melbourne

Mon 4/20

9:45 am-11:34 am

1 stop41h 49m

$1,159

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Sun 6/7

3:47 pm-6:30 am

1 stop22h 43m

Brisbane

Fri 6/19

10:30 am-11:43 pm

1 stop29h 13m

$1,216

DenverPerth

DEN - PER

DENPER

Denver Intl

Tue 4/14

7:00 am-6:50 am

2 stops33h 50m

Perth

Mon 4/20

12:10 am-5:07 pm

2 stops30h 57m

$1,231

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 4/18

11:20 am-7:20 am

2 stops28h 00m

Sydney Kingsford Smith

Sat 4/25

9:20 am-4:03 pm

2 stops22h 43m

$1,241

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Fri 3/13

6:10 pm-7:20 am

1 stop21h 10m

Brisbane

Fri 3/20

9:40 am-11:58 am

1 stop18h 18m

$1,254

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Fri 5/15

1:40 pm-6:30 am

1 stop24h 50m

Brisbane

Fri 6/12

10:30 am-2:23 pm

1 stop19h 53m

$1,257

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Colorado to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Australia

What is the cheapest month to book a flight from Colorado to Australia?

Currently, September is the cheapest month in which you can book a flight from Colorado to Australia (average of $303). Flying from Colorado to Australia in December is currently the most expensive (average of $823). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Colorado to Australia?

    For as low as $1,165, Air Canada can have you in Australia from Colorado in 19h 06m. The distance from Colorado to Australia is about 8012 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Colorado to Australia one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $353. However, be on the lookout for offers from Qantas Airways and Alaska Airlines, as they are both options that can get you from Colorado to Australia for a low price.

  • Can I find deals for flights from Colorado to Australia that include hotel bookings?

    Yes. In addition to deals on Colorado to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Australia.

  • Can I find deals for business class flights from Colorado to Australia?

    Yes. Cheapflights offers flight deals from Colorado to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Australia?

    Currently, September is the cheapest month in which you can book a flight from Colorado to Australia (average of $303). Flying from Colorado to Australia in December is currently the most expensive (average of $823). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Colorado to Australia

Discover the top 8 airlines that operate flights from Colorado to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$1,203FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$682Average$1,061FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$724Average$937FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$745Average$856FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$765Average$1,459FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$827Average$1,263FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$853Average$1,463FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$946Average$1,284FlexibilityNo cancel feeOn-time78%

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