$470+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
May 22 — May 291
Round-trip
1 adult, Economy
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Cheapest flights from Colorado to AustraliaExplore 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 22, 2026.
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 22, 2026.
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:10 am
DEN
- SYD
3 stops37h 40m
Multiple Airlines
Sun 5/241:15 pm
SYD
- DEN
2 stops27h 23m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$924
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Fri 5/291:15 pm
SYD
- DEN
2 stops27h 23m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$933
This Trip.com deal was found by Cheapflights users on 4/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:32 pm
DEN
- SYD
2 stops31h 18m
Multiple Airlines
Sun 8/91:15 pm
SYD
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,019
This Trip.com deal was found by Cheapflights users on 4/19. 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 5/188:41 am
DEN
- SYD
2 stops35h 24m
Multiple Airlines
Sun 5/316:00 am
SYD
- DEN
2 stops34h 38m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,046
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Sat 5/166:00 am
DEN
- MEL
3 stops38h 00m
Multiple Airlines
Sat 5/231:30 pm
MEL
- DEN
2 stops27h 08m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,066
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Sun 8/167:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Sun 8/301:15 pm
SYD
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,079
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:20 am
DEN
- BNE
2 stops35h 20m
Multiple Airlines
Wed 5/2711:35 am
BNE
- DEN
2 stops24h 31m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,092
This Trip.com deal was found by Cheapflights users on 4/17. 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.
Fri 7/37:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Sat 7/111:15 pm
SYD
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,105
This Trip.com deal was found by Cheapflights users on 4/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:41 am
DEN
- SYD
1 stop30h 24m
Multiple Airlines
Wed 5/279:10 am
SYD
- DEN
1 stop26h 56m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,145
This Trip.com deal was found by Cheapflights users on 4/17. 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 6/207:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Sun 8/22:10 pm
SYD
- DEN
3 stops29h 48m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,152
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Sun 7/57:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Sun 7/191:15 pm
SYD
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,159
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:40 pm
DEN
- BNE
2 stops28h 55m
Multiple Airlines
Thu 5/711:55 am
BNE
- DEN
3 stops36h 13m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,164
Best flights from Colorado to AustraliaDiscover carefully curated flight deals from Colorado to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2026.
Discover carefully curated flight deals from Colorado to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2026.
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:12 pm
DEN
- ADL
2 stops23h 43m
Qantas Airways
Sun 7/196:00 am
ADL
- DEN
2 stops27h 10m
Qantas Airways
Deal found 4/20![Qantas Airways logo]()
$1,395
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:16 pm
COS
- SYD
2 stops26h 44m
United Airlines
Sat 7/1110:20 am
SYD
- COS
2 stops23h 37m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,414
This American Airlines deal was found by Cheapflights users on 4/19. 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.
Thu 6/410:45 am
COS
- SYD
2 stops28h 20m
American Airlines
Thu 6/1112:00 pm
SYD
- COS
1 stop20h 43m
American Airlines
Deal found 4/19![American Airlines logo]()
$1,419
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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.
Wed 8/128:00 am
DEN
- SYD
2 stops31h 30m
Alaska Airlines
Wed 8/265:50 pm
SYD
- DEN
2 stops36h 14m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$1,457
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:06 pm
DEN
- SYD
2 stops31h 44m
Multiple Airlines
Sun 9/68:45 pm
SYD
- DEN
2 stops31h 38m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,488
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:29 pm
DEN
- ADL
2 stops29h 56m
Air New Zealand
Sun 9/277:10 pm
ADL
- DEN
2 stops32h 33m
Air New Zealand
Deal found 4/17![Air New Zealand logo]()
$1,531
This Turkish Airlines deal was found by Cheapflights users on 4/20. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am
DEN
- MEL
3 stops45h 40m
Turkish Airlines
Sat 10/39:35 pm
MEL
- DEN
2 stops36h 50m
Turkish Airlines
Deal found 4/20![Turkish Airlines logo]()
$1,621
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:57 pm
DEN
- MEL
2 stops26h 53m
Delta
Wed 8/1210:00 am
MEL
- DEN
2 stops21h 11m
Delta
Deal found 4/21![Delta logo]()
$1,990
This Air Canada deal was found by Cheapflights users on 4/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:50 pm
DEN
- CNS
2 stops28h 05m
Air Canada
Wed 8/266:00 am
CNS
- DEN
2 stops27h 13m
Air Canada
Deal found 4/19![Air Canada logo]()
$2,256
This Cathay Pacific deal was found by Cheapflights users on 4/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:43 am
DEN
- SYD
2 stops55h 27m
Cathay Pacific
Sat 10/1710:20 pm
SYD
- DEN
2 stops66h 09m
Cathay Pacific
Deal found 4/20![Cathay Pacific logo]()
$2,298
This Asiana Airlines deal was found by Cheapflights users on 4/18. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:43 pm
DEN
- SYD
2 stops55h 42m
Asiana Airlines
Sun 8/29:00 pm
SYD
- DEN
2 stops42h 15m
Asiana Airlines
Deal found 4/18![Asiana Airlines logo]()
$2,523
This oojo deal was found by Cheapflights users on 4/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:19 pm
DEN
- ADL
2 stops23h 36m
Qantas Airways
Fri 5/226:30 pm
ADL
- DEN
2 stops38h 37m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$1,440
This Air Canada deal was found by Cheapflights users on 4/17. 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 9/197:50 pm
DEN
- MEL
2 stops23h 35m
Multiple Airlines
Sat 10/36:45 pm
MEL
- DEN
2 stops33h 46m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,497
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:06 pm
COS
- SYD
2 stops26h 49m
United Airlines
Tue 8/119:30 am
SYD
- COS
2 stops20h 56m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,504
This American Airlines deal was found by Cheapflights users on 4/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:00 am
COS
- MEL
1 stop28h 00m
American Airlines
Sat 10/3112:00 pm
MEL
- COS
1 stop27h 57m
American Airlines
Deal found 4/18![American Airlines logo]()
$1,565
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/710:02 am
DEN
- BNE
2 stops33h 03m
Air New Zealand
Sat 6/207:35 pm
BNE
- DEN
2 stops50h 57m
Air New Zealand
Deal found 4/20![Air New Zealand logo]()
$1,650
This Qantas Airways deal was found by Cheapflights users on 4/18. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:19 pm
DEN
- ADL
2 stops23h 36m
Qantas Airways
Sun 6/77:45 pm
ADL
- DEN
2 stops37h 22m
Qantas Airways
Deal found 4/18![Qantas Airways logo]()
$1,511
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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.
Thu 5/71:02 pm
DEN
- SYD
2 stops37h 48m
Multiple Airlines
Thu 5/148:45 pm
SYD
- DEN
2 stops38h 26m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,522
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:02 am
DEN
- SYD
2 stops33h 28m
Alaska Airlines
Mon 7/65:50 pm
SYD
- DEN
2 stops42h 20m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$1,676
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:15 pm
COS
- MEL
2 stops51h 00m
United Airlines
Sat 10/3112:00 pm
MEL
- COS
2 stops28h 59m
United Airlines
Deal found 4/19![United Airlines logo]()
$1,545
This Qantas Airways deal was found by Cheapflights users on 4/18. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:19 pm
DEN
- ADL
2 stops29h 56m
Qantas Airways
Sat 6/65:10 pm
ADL
- DEN
2 stops33h 21m
Qantas Airways
Deal found 4/18![Qantas Airways logo]()
$1,515
This FlightHub deal was found by Cheapflights users on 4/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:15 pm
DEN
- CNS
3 stops55h 40m
Multiple Airlines
Tue 8/186:00 am
CNS
- DEN
2 stops27h 13m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,528
This Qantas Airways deal was found by Cheapflights users on 4/18. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:08 pm
DEN
- ADL
2 stops30h 47m
Qantas Airways
Fri 6/126:00 am
ADL
- DEN
2 stops27h 07m
Qantas Airways
Deal found 4/18![Qantas Airways logo]()
$1,515
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Wed 6/32:00 pm
DEN
- PER
2 stops37h 00m
Multiple Airlines
Wed 6/1010:35 am
PER
- DEN
3 stops36h 40m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,529
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:30 pm
DEN
- MEL
2 stops26h 00m
United Airlines
Wed 7/110:55 am
MEL
- DEN
2 stops27h 20m
United Airlines
Deal found 4/21![United Airlines logo]()
$1,746
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/139:20 pm
DEN
- PER
2 stops52h 40m
Air New Zealand
Fri 7/34:25 pm
PER
- DEN
2 stops36h 02m
Air New Zealand
Deal found 4/21![Air New Zealand logo]()
$1,930
This Qantas Airways deal was found by Cheapflights users on 4/18. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:41 pm
DEN
- ADL
2 stops31h 44m
Qantas Airways
Mon 6/86:00 am
ADL
- DEN
2 stops27h 07m
Qantas Airways
Deal found 4/18![Qantas Airways logo]()
$1,515
This Air Canada deal was found by Cheapflights users on 4/17. 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 5/49:10 am
DEN
- CBR
2 stops33h 30m
Air Canada
Fri 5/86:40 pm
CBR
- DEN
2 stops38h 40m
Air Canada
Deal found 4/17![Air Canada logo]()
$2,265
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:15 pm
DEN
- SYD
2 stops32h 35m
Multiple Airlines
Fri 7/108:45 pm
SYD
- DEN
2 stops38h 40m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,570
This oojo deal was found by Cheapflights users on 4/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:07 am
DEN
- PER
2 stops39h 53m
Air New Zealand
Tue 5/2611:45 pm
PER
- DEN
2 stops26h 28m
Air New Zealand
Deal found 4/19![Air New Zealand logo]()
$1,957
Last-minute flights from Colorado to AustraliaDiscover last-minute flight deals from Colorado to Australia. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Australia. Data last updated April 22, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:40 pm
DEN
- BNE
2 stops28h 55m
Multiple Airlines
Thu 5/711:55 am
BNE
- DEN
3 stops36h 13m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,164
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:39 pm
COS
- SYD
2 stops25h 51m
American Airlines
Sun 5/1712:00 pm
SYD
- COS
1 stop23h 48m
American Airlines
Deal found 4/21![American Airlines logo]()
$1,369
This Trip.com deal was found by Cheapflights users on 4/18. 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 5/52:23 pm
DEN
- SYD
2 stops25h 07m
Multiple Airlines
Wed 5/139:10 am
SYD
- DEN
1 stop20h 02m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,188
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:10 am
DEN
- SYD
3 stops37h 40m
Multiple Airlines
Sun 5/241:15 pm
SYD
- DEN
2 stops27h 23m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$924
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/1310:39 pm
DEN
- SYD
2 stops45h 11m
Multiple Airlines
Wed 5/275:50 pm
SYD
- DEN
1 stop32h 14m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,181
This Trip.com deal was found by Cheapflights users on 4/17. 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.
Fri 5/1510:00 am
DEN
- SYD
3 stops41h 25m
Multiple Airlines
Fri 5/229:00 am
SYD
- DEN
2 stops31h 38m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,196
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Sat 5/166:00 am
DEN
- MEL
3 stops38h 00m
Multiple Airlines
Sat 5/231:30 pm
MEL
- DEN
2 stops27h 08m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$1,066
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:20 am
DEN
- BNE
2 stops35h 20m
Multiple Airlines
Wed 5/2711:35 am
BNE
- DEN
2 stops24h 31m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$1,092
This Trip.com deal was found by Cheapflights users on 4/19. 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 5/188:41 am
DEN
- SYD
2 stops35h 24m
Multiple Airlines
Sun 5/316:00 am
SYD
- DEN
2 stops34h 38m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$1,046
This Trip.com deal was found by Cheapflights users on 4/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:41 am
DEN
- SYD
1 stop30h 24m
Multiple Airlines
Wed 5/279:10 am
SYD
- DEN
1 stop26h 56m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,145
This Trip.com deal was found by Cheapflights users on 4/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Fri 5/291:15 pm
SYD
- DEN
2 stops27h 23m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$933
This Trip.com deal was found by Cheapflights users on 4/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:00 pm
DEN
- SYD
1 stop25h 05m
Multiple Airlines
Tue 6/99:10 am
SYD
- DEN
1 stop20h 01m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$1,183
One-way flights from Colorado to AustraliaSearch for one-way flight options from Colorado to Australia. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
Search for one-way flight options from Colorado to Australia. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:39 pm
DEN
- SYD
2 stops45h 11m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/277:20 am
DEN
- SYD
2 stops36h 30m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$478
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:39 pm
DEN
- SYD
2 stops45h 11m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/67:20 am
DEN
- SYD
2 stops46h 50m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 8/2010:39 pm
DEN
- SYD
2 stops45h 11m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$528
This Trip.com deal was found by Cheapflights users on 4/18. 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.
Sat 5/168:41 am
DEN
- MEL
2 stops35h 19m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$536
This Trip.com deal was found by Cheapflights users on 4/19. 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.
Sun 5/242:00 pm
DEN
- SYD
2 stops29h 50m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:39 pm
DEN
- AVV
3 stops49h 26m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Mon 5/257:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:39 pm
DEN
- MEL
3 stops54h 41m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$573
This Jetabroad deal was found by Cheapflights users on 4/18. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:21 pm
DEN
- MEL
2 stops34h 59m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$586
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1610:39 pm
DEN
- AVV
3 stops49h 26m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$599
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 April 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $924 (Trip.com) |
One-way from | $470 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $1,183 |
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 22, 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
Cheapest round-trip
DenverAdelaide
DEN - ADL
DENADL
Denver Intl
Fri 7/3
6:12 pm-9:25 am
2 stops23h 43m
Adelaide
Sun 7/19
6:00 am-5:40 pm
2 stops27h 10m
$1,395
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Fri 7/3
12:16 pm-7:00 am
2 stops26h 44m
Sydney Kingsford Smith
Sat 7/11
10:20 am-5:57 pm
2 stops23h 37m
$1,414
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Thu 6/4
10:45 am-7:05 am
2 stops28h 20m
Sydney Kingsford Smith
Thu 6/11
12:00 pm-4:43 pm
1 stop20h 43m
$1,419
DenverAdelaide
DEN - ADL
DENADL
Denver Intl
Fri 5/15
6:19 pm-9:25 am
2 stops23h 36m
Adelaide
Fri 5/22
6:30 pm-5:37 pm
2 stops38h 37m
$1,440
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Wed 8/12
8:00 am-7:30 am
2 stops31h 30m
Sydney Kingsford Smith
Wed 8/26
5:50 pm-2:04 pm
2 stops36h 14m
$1,457
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Thu 8/27
7:06 pm-6:50 pm
2 stops31h 44m
Sydney Kingsford Smith
Sun 9/6
8:45 pm-12:23 pm
2 stops31h 38m
$1,488
DenverMelbourne
DEN - MEL
DENMEL
Denver Intl
Sat 9/19
7:50 pm-11:25 am
2 stops23h 35m
Melbourne
Sat 10/3
6:45 pm-12:31 pm
2 stops33h 46m
$1,497
Quickest round-trip
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Fri 8/7
12:06 pm-6:55 am
2 stops26h 49m
Sydney Kingsford Smith
Tue 8/11
9:30 am-2:26 pm
2 stops20h 56m
$1,504
DenverAdelaide
DEN - ADL
DENADL
Denver Intl
Mon 5/18
6:19 pm-9:25 am
2 stops23h 36m
Adelaide
Sun 6/7
7:45 pm-5:37 pm
2 stops37h 22m
$1,511
DenverAdelaide
DEN - ADL
DENADL
Denver Intl
Mon 5/18
6:19 pm-3:45 pm
2 stops29h 56m
Adelaide
Sat 6/6
5:10 pm-11:01 am
2 stops33h 21m
$1,515
Showing 1-10 of 56 resultsSorted by cheapest first
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.
DEN-SYD
DEN-MEL
DEN-BNE
COS-SYD
DEN-AVV
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
USCO-AU0
DEN-SYD
DEN-MEL
DEN-BNE
COS-SYD
What is the cheapest month to book a flight from Colorado to Australia?
Currently, January is the cheapest month in which you can book a flight from Colorado to Australia (average of $72). Flying from Colorado to Australia in March is currently the most expensive (average of $729). 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.
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.
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Alternative routes for Colorado to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Australia by cabin class
Find flights from Colorado to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Colorado and Australia flights
Browse other Colorado and Australia flight options. Last updated on April 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Australia
Find the right flight back to Colorado after your stay in Australia
Colorado to Australia flights
Consider these flights traveling from Colorado to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
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 April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$1,209 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$682 | Average$950 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$745 | Average$945 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$802 | Average$1,462 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$827 | Average$1,262 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$844 | Average$1,360 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$853 | Average$1,454 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$946 | Average$1,284 | FlexibilityNo cancel fee | On-time78% |