HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Australia

$530+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
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

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 July 23, 2026.

This Trip.com deal was found by Cheapflights users on 7/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:00 am
DEN
-
SYD
2 stops47h 25m
Multiple Airlines
Sat 8/291:15 pm
SYD
-
DEN
2 stops27h 29m
Multiple Airlines
Deal found 7/19$957
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Tue 8/1810:39 pm
DEN
-
SYD
1 stop40h 51m
Multiple Airlines
Tue 8/251:15 pm
SYD
-
DEN
2 stops39h 58m
Multiple Airlines
Deal found 7/21$982
This Trip.com deal was found by Cheapflights users on 7/18. 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.
Tue 8/2510:39 pm
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Thu 9/31:15 pm
SYD
-
DEN
2 stops27h 29m
Multiple Airlines
Deal found 7/18$983
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Tue 9/1510:29 pm
DEN
-
MEL
1 stop40h 16m
Multiple Airlines
Tue 10/132:25 pm
MEL
-
DEN
2 stops36h 15m
Multiple Airlines
Deal found 7/22$990
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/249:15 am
DEN
-
SYD
1 stop30h 15m
Multiple Airlines
Fri 10/92:15 pm
SYD
-
DEN
2 stops36h 25m
Multiple Airlines
Deal found 7/21$991
This Trip.com deal was found by Cheapflights users on 7/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 am
DEN
-
SYD
2 stops47h 25m
Multiple Airlines
Fri 9/181:15 pm
SYD
-
DEN
2 stops27h 10m
Multiple Airlines
Deal found 7/19$993
This Trip.com deal was found by Cheapflights users on 7/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 am
DEN
-
BNE
2 stops35h 35m
Multiple Airlines
Thu 8/2711:55 am
BNE
-
DEN
2 stops28h 49m
Multiple Airlines
Deal found 7/19$1,000
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Mon 9/149:15 am
DEN
-
MEL
1 stop29h 30m
Multiple Airlines
Fri 10/162:20 pm
MEL
-
DEN
2 stops36h 20m
Multiple Airlines
Deal found 7/22$1,007
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 9/1612:02 pm
DEN
-
MEL
1 stop26h 43m
Multiple Airlines
Fri 10/162:20 pm
MEL
-
DEN
2 stops36h 20m
Multiple Airlines
Deal found 7/22$1,008
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/1910:39 pm
DEN
-
SYD
1 stop40h 51m
Multiple Airlines
Wed 8/261:15 pm
SYD
-
DEN
2 stops36h 48m
Multiple Airlines
Deal found 7/21$1,013
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Tue 9/1510:29 pm
DEN
-
MEL
1 stop40h 16m
Multiple Airlines
Wed 10/142:25 pm
MEL
-
DEN
2 stops41h 12m
Multiple Airlines
Deal found 7/22$1,013
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Sat 9/129:15 am
DEN
-
MEL
1 stop29h 30m
Multiple Airlines
Thu 10/152:20 pm
MEL
-
DEN
2 stops27h 05m
Multiple Airlines
Deal found 7/22$1,018

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$957
(Trip.com)

One-way from

$530
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,256
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. 13% potential increase in price ($221 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 23, 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

Cheapest round-trip

Colorado SpringsMelbourne

COS - MEL

COSMEL

Colorado Springs

Sat 10/10

1:29 pm-9:15 am

2 stops50h 46m

Melbourne

Sat 10/31

11:45 am-6:30 pm

2 stops23h 45m

$1,132

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

12:50 pm-6:55 am

1 stop26h 05m

Sydney Kingsford Smith

Sat 8/22

12:00 pm-8:16 pm

1 stop24h 16m

$1,166

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

12:50 pm-6:55 am

1 stop26h 05m

Sydney Kingsford Smith

Mon 8/24

6:25 am-8:16 pm

3 stops29h 51m

$1,202

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

2:15 pm-6:55 am

2 stops24h 40m

Sydney Kingsford Smith

Mon 8/24

9:30 am-1:34 pm

1 stop20h 04m

$1,242

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

12:03 pm-6:50 am

1 stop26h 47m

Sydney Kingsford Smith

Sat 8/22

9:15 am-7:12 pm

1 stop25h 57m

$1,245

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

9:15 am-7:00 am

2 stops29h 45m

Sydney Kingsford Smith

Sat 8/22

9:30 am-1:34 pm

1 stop20h 04m

$1,292

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sun 8/16

10:05 am-8:15 am

2 stops30h 10m

Melbourne

Tue 9/15

10:55 am-3:54 pm

1 stop20h 59m

$1,462

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Sun 8/2

7:25 pm-8:15 am

1 stop20h 50m

Melbourne

Wed 8/26

9:30 am-7:45 pm

1 stop26h 15m

$1,462
Quickest round-trip

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Tue 8/4

5:54 pm-8:15 am

1 stop22h 21m

Melbourne

Wed 8/19

9:30 am-12:15 pm

1 stop18h 45m

$1,462

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Thu 9/17

10:05 am-10:55 am

2 stops32h 50m

Melbourne

Mon 10/12

8:35 am-6:04 pm

2 stops26h 29m

$1,528

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 60 resultsSorted by cheapest first
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, April is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,136). Flying from Colorado to Australia in December is currently the most expensive (average of $1,846). 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.

How far ahead should I book a flight from Colorado to Australia?

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colorado to Australia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $1,166, United Airlines can have you in Australia from Colorado in 26h 05m. The distance from Colorado to Australia is about 8223 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 $411. However, be on the lookout for offers from Qantas Airways and United 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, April is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,136). Flying from Colorado to Australia in December is currently the most expensive (average of $1,846). 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.

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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$677FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$682Average$737FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$827Average$1,300FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$844Average$1,542FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$849Average$1,399FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$853Average$1,493FlexibilityNo cancel feeOn-time69%
Air New ZealandCheapest$946Average$1,264FlexibilityNo cancel feeOn-time78%

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.
Site
©2026 Cheapflights