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$433+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
mar. 14 — mar. 211
sáb. 3/14
sáb. 3/21
1 adult, Economy
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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 febrero 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
mar. 5/51:35 pm
DEN
-
SYD
1 stop25h 55m
Multiple Airlines
mar. 5/121:15 pm
SYD
-
DEN
2 stops22h 34m
Multiple Airlines
Deal found 2/9$844
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
mié. 5/69:30 pm
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
mié. 5/131:20 pm
SYD
-
DEN
2 stops22h 29m
Multiple Airlines
Deal found 2/10$846
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
sáb. 5/29:30 pm
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
mar. 5/121:15 pm
SYD
-
DEN
2 stops22h 34m
Multiple Airlines
Deal found 2/9$849
This Trip.com deal was found by Cheapflights users on 2/10. 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.
mar. 3/109:00 am
DEN
-
SYD
2 stops34h 35m
Multiple Airlines
mar. 3/176:00 am
SYD
-
DEN
2 stops35h 30m
Multiple Airlines
Deal found 2/10$851
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
sáb. 5/29:30 pm
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
vie. 5/151:15 pm
SYD
-
DEN
2 stops36h 30m
Multiple Airlines
Deal found 2/10$858
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
lun. 4/277:00 am
DEN
-
BNE
1 stop30h 00m
Multiple Airlines
lun. 5/411:55 am
BNE
-
DEN
2 stops38h 52m
Multiple Airlines
Deal found 2/9$866
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
mar. 5/51:35 pm
DEN
-
SYD
1 stop25h 55m
Multiple Airlines
mié. 5/131:20 pm
SYD
-
DEN
2 stops36h 25m
Multiple Airlines
Deal found 2/9$867
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
vie. 5/17:00 am
DEN
-
SYD
1 stop32h 30m
Multiple Airlines
mar. 5/121:15 pm
SYD
-
DEN
2 stops22h 34m
Multiple Airlines
Deal found 2/10$870
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
sáb. 5/29:30 pm
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
dom. 5/101:15 pm
SYD
-
DEN
2 stops36h 30m
Multiple Airlines
Deal found 2/9$873
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
lun. 4/69:20 am
DEN
-
MEL
1 stop29h 25m
Multiple Airlines
mié. 4/151:25 pm
MEL
-
DEN
2 stops22h 24m
Multiple Airlines
Deal found 2/10$887
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
lun. 3/1610:29 pm
DEN
-
MEL
1 stop42h 01m
Multiple Airlines
mié. 3/251:45 pm
MEL
-
DEN
2 stops27h 52m
Multiple Airlines
Deal found 2/9$900
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
sáb. 2/2111:50 am
DEN
-
BNE
1 stop24h 10m
Multiple Airlines
dom. 3/111:25 am
BNE
-
DEN
2 stops39h 05m
Multiple Airlines
Deal found 2/9$937

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 febrero 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$844
(Kiwi.com)

One-way from

$433
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,307
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. 16% potential increase in price ($241 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 febrero 12, 2026.
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

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

mar. 2/17

9:31 pm-5:00 am

1 stop38h 29m

Brisbane

dom. 3/1

11:25 am-9:30 am

2 stops39h 05m

$950

DenverSydney

DEN - SYD

DENSYD

Denver Intl

sáb. 3/21

9:00 am-12:35 pm

2 stops34h 35m

Sydney Kingsford Smith

vie. 3/27

2:00 pm-12:30 am

2 stops27h 30m

$981

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 4/5

11:59 am-7:05 am

1 stop27h 06m

Brisbane

sáb. 4/18

8:40 pm-12:33 pm

2 stops31h 53m

$981

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 3/15

7:25 pm-7:45 am

2 stops44h 20m

Brisbane

jue. 3/19

9:45 am-12:37 pm

1 stop18h 52m

$997

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

mié. 2/18

8:05 am-8:45 am

1 stop31h 40m

Brisbane

vie. 2/27

10:45 am-12:37 pm

1 stop18h 52m

$1,006

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

dom. 4/5

7:05 pm-6:10 pm

2 stops31h 35m

Adelaide

sáb. 4/18

7:35 pm-12:35 pm

2 stops32h 30m

$1,008

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

mié. 2/18

8:05 am-8:45 am

1 stop31h 40m

Brisbane

lun. 3/2

10:45 am-12:28 pm

1 stop18h 43m

$1,053

DenverAdelaide

DEN - ADL

DENADL

Denver Intl

mar. 4/7

7:05 pm-9:20 pm

2 stops34h 45m

Adelaide

lun. 4/27

9:20 pm-12:35 pm

2 stops30h 45m

$1,070

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

dom. 3/8

8:05 am-11:30 am

2 stops35h 25m

Brisbane

dom. 3/22

9:45 am-12:37 pm

1 stop18h 52m

$1,078

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

sáb. 2/21

8:05 am-8:45 am

1 stop31h 40m

Brisbane

mar. 2/24

10:45 am-10:27 am

2 stops40h 42m

$1,089

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 60 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.

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, July is the cheapest month in which you can book a flight from Colorado to Australia (average of $365). Flying from Colorado to Australia in December is currently the most expensive (average of $821). 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 $1,130, Air Canada can have you in Australia from Colorado in 25h. The distance from Colorado to Australia is about 8781 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, July is the cheapest month in which you can book a flight from Colorado to Australia (average of $365). Flying from Colorado to Australia in December is currently the most expensive (average of $821). 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 febrero 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$1,203FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$684Average$1,287FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$724Average$864FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$745Average$856FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$765Average$1,318FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$827Average$1,272FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$834Average$1,292FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$853Average$1,467FlexibilityNo cancel feeOn-time69%

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