HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$484+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Australia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$818
(Trip.com)

One-way from

$484
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$878
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
Search Deals
From Colorado to Australia
Search Deals
One-way flight from Colorado to Australia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($151 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 3, 2025.

This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/15:30 amDEN - MEL
2 stops38h 00mMultiple Airlines
Thu 5/812:55 pmMEL - DEN
2 stops26h 22mMultiple Airlines
Deal found 4/1$818
This Cheapflightsfares deal was found by Cheapflights users on 4/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:49 pmDEN - BNE
1 stop22h 41mQantas Airways
Thu 11/139:45 amBNE - DEN
1 stop23h 02mQantas Airways
Deal found 4/2$905
This Trip.com deal was found by Cheapflights users on 4/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/108:00 amDEN - SYD
2 stops35h 45mMultiple Airlines
Sat 5/176:00 amSYD - DEN
2 stops32h 12mMultiple Airlines
Deal found 4/2$919
This American Airlines deal was found by Cheapflights users on 4/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/258:33 amDEN - BNE
1 stop28h 57mAmerican Airlines
Thu 12/257:25 pmBNE - DEN
2 stops19h 16mAmerican Airlines
Deal found 4/2$940
This Priceline deal was found by Cheapflights users on 4/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:05 pmDEN - SYD
1 stop20h 15mAir Canada
Tue 9/99:20 amSYD - DEN
2 stops24h 44mAir Canada
Deal found 4/2$1,046
This Air Canada deal was found by Cheapflights users on 4/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/211:21 amDEN - BNE
2 stops28h 19mAir Canada
Thu 11/1310:45 amBNE - DEN
2 stops24h 19mAir Canada
Deal found 4/2$1,119
This FlightHub deal was found by Cheapflights users on 4/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:51 pmDEN - BNE
2 stops23h 34mFiji Airways
Tue 10/2811:35 amBNE - DEN
2 stops24h 22mFiji Airways
Deal found 4/2$1,182
This StudentUniverse deal was found by Cheapflights users on 4/2. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:50 pmDEN - SYD
2 stops24h 55mFiji Airways
Sat 8/231:45 pmSYD - DEN
2 stops22h 12mFiji Airways
Deal found 4/2$1,188
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:59 pmDEN - CNS
2 stops27h 51mQantas Airways
Sun 12/146:00 amCNS - DEN
2 stops24h 32mQantas Airways
Deal found 4/1$1,189
This Justfly.com deal was found by Cheapflights users on 4/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:49 pmDEN - SYD
2 stops26h 56mQantas Airways
Mon 12/85:25 pmSYD - DEN
1 stop19h 23mQantas Airways
Deal found 4/2$1,227
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Sat 9/137:05 pmDEN - MEL
2 stops24h 55mAir Canada
Mon 9/296:00 amMEL - DEN
2 stops26h 33mAir Canada
Deal found 4/1$1,252
This StudentUniverse deal was found by Cheapflights users on 4/2. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/176:33 pmDEN - ADL
2 stops25h 32mFiji Airways
Sat 5/2412:35 pmADL - DEN
2 stops23h 11mFiji Airways
Deal found 4/2$1,316

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 April 3, 2025.
Use the filters below to find and compare flights from Colorado to Australia that are best for you.

Fly from

Colorado

Fly to

Australia

Route

Depart

Return

Price

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Thu 5/1

5:30 am-11:30 am

2 stops38h 00m

Melbourne

Thu 5/8

12:55 pm-11:17 pm

2 stops26h 22m

$818

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 5/10

8:00 am-11:45 am

2 stops35h 45m

Sydney Kingsford Smith

Sat 5/17

6:00 am-10:12 pm

2 stops32h 12m

$919

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 9/1

7:05 pm-7:20 am

1 stop20h 15m

Sydney Kingsford Smith

Tue 9/9

9:20 am-6:04 pm

2 stops24h 44m

$1,046

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Thu 5/15

5:30 am-11:35 am

2 stops38h 35m

Adelaide

Sat 5/24

12:35 pm-2:23 pm

2 stops41h 18m

$1,052

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 8/16

6:50 pm-11:45 am

2 stops24h 55m

Sydney Kingsford Smith

Sat 8/23

1:45 pm-7:57 pm

2 stops22h 12m

$1,188

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 7/8

6:35 pm-10:20 am

2 stops23h 45m

Brisbane

Thu 7/24

11:40 am-8:05 pm

2 stops24h 25m

$1,230

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Mon 5/26

11:24 am-7:05 am

2 stops27h 41m

Brisbane

Sun 6/1

10:00 am-12:23 am

1 stop30h 23m

$1,239

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

Thu 5/15

6:33 pm-11:35 am

2 stops25h 32m

Adelaide

Sat 5/24

12:35 pm-8:16 pm

2 stops23h 11m

$1,255

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

4:30 pm-7:30 am

1 stop23h 00m

Sydney Kingsford Smith

Tue 6/24

9:10 am-11:10 am

1 stop18h 00m

$1,261

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

2:45 pm-6:05 am

2 stops23h 20m

Sydney Kingsford Smith

Tue 6/3

5:45 pm-11:59 pm

2 stops22h 14m

$1,326

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 55 results
1
2
3
...
6

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, February is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,046). 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 April 3, 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 April 3, 2025.
See what other customers who have flown with Air Tahiti Nui, ANA and Singapore Airlines 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

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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
8.3
Very good
830 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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
1,288 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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.
Fiji Airways
8.0
Very good
180 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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
8.0
Very good
3,193 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Entertainment

7.2

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 Fiji Airways, with whom users have recently found tickets for as low as $601. However, be on the lookout for offers from Air Canada and Qantas Airways, 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 $1,046). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Australia

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
Los Angeles to Melbourne flights
Los Angeles to Auckland flights
Los Angeles to Papeete flights
Dallas/Fort Worth to Sydney flights
John F Kennedy Intl to Sydney flights
San Francisco to Sydney flights
Newark to Sydney flights
San Francisco to Melbourne flights
LaGuardia to Sydney flights
San Francisco to Papeete flights
Los Angeles to Brisbane flights
Dulles Intl to Sydney flights
John F Kennedy Intl to Auckland flights
San Francisco to Auckland flights
Dallas/Fort Worth to Melbourne flights
John F Kennedy Intl to Melbourne flights
Reagan-National to Melbourne flights
Dulles Intl to Melbourne flights
Reagan-National to Sydney flights
Seattle to Sydney flights
Ontario to Sydney flights
O'Hare Intl to Sydney flights
Baltimore to Sydney flights
Hobby to Sydney flights
Los Angeles to Nadi flights
Santa Ana to Sydney flights
Dallas/Fort Worth to Auckland flights
Boston to Sydney flights
Newark to Auckland flights
Newark to Melbourne flights
San Francisco to Nadi flights
Hobby to Melbourne flights
Atlanta to Sydney flights
Denver to Sydney flights
Honolulu to Sydney flights
Hobby to Auckland flights
Baltimore to Melbourne flights
Dallas/Fort Worth to Brisbane flights
Dulles Intl to Brisbane flights
Detroit to Sydney flights
George Bush Intcntl to Sydney flights
San Jose to Papeete flights
Minneapolis to Sydney flights
LaGuardia to Melbourne flights
Ontario to Papeete flights
LaGuardia to Auckland flights
Reagan-National to Brisbane flights
Seattle to Melbourne flights
Los Angeles to Avalon flights

Top 7 airlines flying from Colorado to Australia

Discover the top 7 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$645Average$1,253FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$693Average$1,011FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time75%
Air New ZealandCheapest$834Average$1,552FlexibilityNo cancel feeOn-time78%
DeltaCheapest$848Average$1,294FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$950Average$1,322FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,043Average$1,594FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.