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$375+ 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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Colorado to Australia

Keep the following information in mind while searching for Colorado to Australia flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$804
(Justfly.com)

One-way from

$407
(Justfly.com)

Popular in

December

Cheapest in

April

Average price

$991
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
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From Colorado to Australia
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One-way flight from Colorado to Australia
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Highest demand for flights based on searches. 10% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find 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 February 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/201:22 pmDEN - BNE
1 stop23h 38mQantas Airways
Thu 3/278:05 amBNE - DEN
1 stop19h 36mQantas Airways
Deal found 2/20$812
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/51:18 pmDEN - MEL
1 stop25h 27mQantas Airways
Sat 4/1211:55 amMEL - DEN
1 stop23h 54mQantas Airways
Deal found 2/20$814
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/101:22 pmDEN - MEL
1 stop25h 13mAmerican Airlines
Mon 3/2412:00 pmMEL - DEN
1 stop24h 30mAmerican Airlines
Deal found 2/19$818
This Gurufare deal was found by Cheapflights users on 2/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/261:00 pmDEN - SYD
1 stop26h 00mQantas Airways
Fri 3/1411:15 amSYD - DEN
1 stop18h 36mQantas Airways
Deal found 2/20$825
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/74:44 pmDEN - BNE
1 stop20h 16mAmerican Airlines
Mon 4/1410:00 pmBNE - DEN
1 stop30h 46mAmerican Airlines
Deal found 2/20$826
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/279:10 amDEN - SYD
1 stop29h 45mAmerican Airlines
Wed 9/312:10 pmSYD - DEN
1 stop18h 53mAmerican Airlines
Deal found 2/19$831
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:51 amDEN - SYD
1 stop28h 09mAlaska Airlines
Mon 11/1011:15 amSYD - DEN
1 stop25h 31mAlaska Airlines
Deal found 2/20$852
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:15 pmDEN - SYD
1 stop19h 20mDelta
Tue 6/109:25 amSYD - DEN
1 stop18h 08mDelta
Deal found 2/20$932
This Gurufare deal was found by Cheapflights users on 2/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/108:00 pmDEN - CBR
2 stops27h 30mQantas Airways
Mon 3/1710:30 amCBR - DEN
2 stops26h 00mQantas Airways
Deal found 2/19$987
This Air Canada deal was found by Cheapflights users on 2/20. 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 7/63:50 pmDEN - SYD
2 stops23h 30mAir Canada
Sat 7/199:20 amSYD - DEN
2 stops24h 39mAir Canada
Deal found 2/20$991
This Expedia deal was found by Cheapflights users on 2/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/198:00 pmDEN - HBA
2 stops29h 55mMultiple Airlines
Wed 3/268:40 amHBA - DEN
2 stops27h 50mMultiple Airlines
Deal found 2/19$992
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
Thu 3/208:23 amDEN - SYD
2 stops30h 02mMultiple Airlines
Wed 4/26:35 pmSYD - DEN
1 stop35h 16mMultiple Airlines
Deal found 2/20$994

Find flights from Colorado to Australia within your budget

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 February 20, 2025.

Fly from

Colorado

Fly to

Australia

Route

Depart

Return

Price

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Thu 3/20

1:22 pm-5:00 am

1 stop23h 38m

Brisbane

Thu 3/27

8:05 am-11:41 am

1 stop19h 36m

$812

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sat 4/5

1:18 pm-6:45 am

1 stop25h 27m

Melbourne

Sat 4/12

11:55 am-7:49 pm

1 stop23h 54m

$814

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 3/10

1:22 pm-7:35 am

1 stop25h 13m

Melbourne

Mon 3/24

12:00 pm-7:30 pm

1 stop24h 30m

$818

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Mon 4/7

4:44 pm-5:00 am

1 stop20h 16m

Brisbane

Mon 4/14

10:00 pm-12:46 pm

1 stop30h 46m

$826

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 3/11

8:41 am-6:35 am

1 stop28h 54m

Sydney Kingsford Smith

Tue 4/1

11:25 am-10:04 pm

1 stop27h 39m

$833

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 3/25

8:00 pm-9:00 am

1 stop20h 00m

Sydney Kingsford Smith

Tue 4/1

10:10 am-7:30 pm

1 stop26h 20m

$852

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 6/1

8:20 pm-7:05 am

1 stop18h 45m

Sydney Kingsford Smith

Sat 6/7

10:25 am-1:34 pm

1 stop19h 09m

$874

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 5/26

7:15 pm-6:35 am

1 stop19h 20m

Sydney Kingsford Smith

Tue 6/10

9:25 am-11:33 am

1 stop18h 08m

$932

DenverCanberra

DEN - CBR

DENCBR

Denver Intl

Mon 3/10

8:00 pm-4:30 pm

2 stops27h 30m

Canberra

Mon 3/17

10:30 am-7:30 pm

2 stops26h 00m

$987

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 7/6

3:50 pm-7:20 am

2 stops23h 30m

Sydney Kingsford Smith

Sat 7/19

9:20 am-5:59 pm

2 stops24h 39m

$991

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 52 results
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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.

Travel insights for flights from Colorado to Australia

Get recent, data-driven insights about flights from Colorado to Australia including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,051). Flying from Colorado to Australia in December is currently the most expensive (average of $1,643). 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.

What is the cheapest time of day to fly from CO to AU?

Find hourly flight availability from Colorado to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Australia as you normally would.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated February 20, 2025.
See what other customers who have flown with Air Tahiti Nui, ANA and Emirates from Colorado to Australia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

ANA
8.4
Very good
842 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Emirates
8.1
Very good
3,279 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Singapore Airlines
8.1
Very good
1,299 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Delta
8.0
Very good
8,220 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Entertainment

7.2

Overall

8.7

Boarding

8.7

Food

7.8

Reviews

1 / 2

10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    The cheapest airline one-way is Qantas Airways, with whom users have recently found tickets for as low as $407. However, be on the lookout for offers from American Airlines 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, February is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,051). Flying from Colorado to Australia in December is currently the most expensive (average of $1,643). 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

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$686Average$1,075FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$696Average$1,296FlexibilityNo cancel feeOn-time74%
Alaska AirlinesCheapest$834Average$878FlexibilityNo cancel feeOn-time75%
DeltaCheapest$848Average$1,330FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$916Average$1,622FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,333FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,217Average$1,527FlexibilityNo cancel feeOn-time78%
Singapore AirlinesCheapest$1,529Average$1,730FlexibilityNo cancel feeOn-time81%
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