$563+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Jul 14 — Jul 211
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 June 14, 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 June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/11. 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 8/104:20 pm
DEN
- MEL
2 stops28h 05m
Multiple Airlines
Thu 8/201:30 pm
MEL
- DEN
2 stops27h 10m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$958
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
DEN
- MEL
2 stops37h 00m
Multiple Airlines
Sun 9/61:30 pm
MEL
- DEN
2 stops27h 10m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$989
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:02 pm
DEN
- MEL
2 stops32h 23m
Multiple Airlines
Thu 10/11:20 pm
MEL
- DEN
2 stops27h 05m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,029
This Trip.com deal was found by Cheapflights users on 6/12. 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 6/237:25 am
DEN
- BNE
2 stops35h 15m
Multiple Airlines
Tue 7/711:35 am
BNE
- DEN
2 stops27h 47m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,095
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Sat 7/257:00 am
DEN
- MEL
2 stops37h 00m
Multiple Airlines
Sat 8/11:30 pm
MEL
- DEN
2 stops26h 59m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,125
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:25 am
DEN
- MEL
2 stops36h 35m
Multiple Airlines
Sun 7/51:30 pm
MEL
- DEN
2 stops26h 59m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,141
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/2110:39 pm
DEN
- BNE
1 stop38h 21m
Multiple Airlines
Tue 7/288:35 pm
BNE
- DEN
1 stop32h 48m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,149
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/410:39 pm
DEN
- BNE
1 stop38h 21m
Multiple Airlines
Thu 8/208:35 pm
BNE
- DEN
1 stop20h 05m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,157
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/610:39 pm
DEN
- BNE
1 stop38h 21m
Multiple Airlines
Wed 8/198:35 pm
BNE
- DEN
1 stop29h 27m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,176
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/157:00 am
DEN
- SYD
1 stop32h 30m
Multiple Airlines
Sun 8/235:50 pm
SYD
- DEN
1 stop32h 12m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,184
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 10/2212:17 pm
DEN
- SYD
1 stop26h 13m
Multiple Airlines
Thu 11/511:15 am
SYD
- DEN
1 stop31h 10m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,192
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/34:20 pm
DEN
- BNE
1 stop20h 40m
Multiple Airlines
Thu 8/208:35 pm
BNE
- DEN
1 stop20h 05m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,192
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 June 14, 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 June 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 8/26:21 pm
DEN
- SYD
2 stops32h 29m
Multiple Airlines
Sun 8/168:45 pm
SYD
- DEN
2 stops29h 48m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:09 pm
COS
- SYD
2 stops23h 51m
United Airlines
Mon 8/2410:20 am
SYD
- COS
2 stops22h 06m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,466
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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 10/227:50 am
DEN
- SYD
2 stops30h 40m
Alaska Airlines
Thu 11/511:15 am
SYD
- DEN
2 stops28h 13m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$1,470
This Air Canada deal was found by Cheapflights users on 6/14. 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.
Tue 11/37:00 pm
DEN
- BNE
1 stop20h 45m
Air Canada
Tue 11/1010:45 am
BNE
- DEN
1 stop18h 23m
Air Canada
Deal found 6/14![Air Canada logo]()
$1,489
This oojo deal was found by Cheapflights users on 6/13. 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.
Wed 12/21:25 pm
DEN
- MEL
2 stops27h 30m
Air New Zealand
Sat 12/1210:20 am
MEL
- DEN
2 stops25h 58m
Air New Zealand
Deal found 6/13![Air New Zealand logo]()
$1,532
This China Eastern deal was found by Cheapflights users on 6/13. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:30 am
DEN
- BNE
2 stops33h 30m
China Eastern
Thu 11/1911:10 am
BNE
- DEN
2 stops48h 00m
China Eastern
Deal found 6/13![China Eastern logo]()
$1,566
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 11/2512:45 pm
DEN
- BNE
2 stops26h 35m
Delta
Sun 12/610:40 am
BNE
- DEN
1 stop17h 49m
Delta
Deal found 6/12![Delta logo]()
$1,757
This Turkish Airlines deal was found by Cheapflights users on 6/13. 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 6/13![Turkish Airlines logo]()
$1,758
This oojo deal was found by Cheapflights users on 6/13. 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 9/288:22 am
DEN
- PER
2 stops37h 33m
Qatar Airways
Fri 10/1610:45 pm
PER
- DEN
2 stops37h 36m
Qatar Airways
Deal found 6/13![Qatar Airways logo]()
$1,825
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:51 pm
COS
- MEL
2 stops38h 24m
Cathay Pacific
Mon 8/3111:45 pm
MEL
- COS
2 stops39h 08m
Cathay Pacific
Deal found 6/9![Cathay Pacific logo]()
$1,856
This oojo deal was found by Cheapflights users on 6/13. 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 11/237:15 pm
DEN
- AVV
2 stops24h 50m
Qantas Airways
Wed 1/136:00 am
AVV
- DEN
2 stops24h 18m
Qantas Airways
Deal found 6/13![Qantas Airways logo]()
$1,994
This FlightHub deal was found by Cheapflights users on 6/13. 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.
Mon 9/288:00 am
DEN
- PER
3 stops38h 30m
Singapore Airlines
Fri 10/161:45 pm
PER
- DEN
2 stops44h 00m
Singapore Airlines
Deal found 6/13![Singapore Airlines logo]()
$2,127
This Ovago deal was found by Cheapflights users on 6/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:26 pm
DEN
- OOL
3 stops57h 14m
ANA
Tue 7/147:05 am
OOL
- DEN
3 stops50h 55m
ANA
Deal found 6/9![ANA logo]()
$2,275
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 10/17:08 pm
DEN
- SYD
2 stops31h 42m
Multiple Airlines
Thu 10/158:45 pm
SYD
- DEN
2 stops31h 50m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,461
This United Airlines deal was found by Cheapflights users on 6/11. 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 11/911:55 am
COS
- SYD
1 stop25h 05m
United Airlines
Fri 11/1311:50 am
SYD
- COS
1 stop27h 32m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,498
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:20 am
DEN
- SYD
2 stops27h 50m
Alaska Airlines
Fri 12/411:15 am
SYD
- DEN
2 stops27h 15m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$1,580
This Orbitz deal was found by Cheapflights users on 6/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:45 pm
DEN
- CBR
2 stops23h 05m
Air Canada
Mon 7/206:40 pm
CBR
- DEN
3 stops41h 42m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,598
This BusinessClass deal was found by Cheapflights users on 6/14. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:15 pm
COS
- MEL
2 stops29h 40m
Air New Zealand
Sat 10/3112:10 pm
MEL
- COS
3 stops38h 55m
Air New Zealand
Deal found 6/14![Air New Zealand logo]()
$1,625
This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:10 am
DEN
- AVV
2 stops37h 10m
Multiple Airlines
Sat 8/224:40 pm
AVV
- DEN
2 stops40h 33m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,542
This Justfly.com deal was found by Cheapflights users on 6/12. 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.
Sun 11/151:25 pm
DEN
- CBR
3 stops57h 40m
Air Canada
Sat 11/216:30 am
CBR
- DEN
2 stops23h 59m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,619
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 10/108:00 am
COS
- MEL
2 stops55h 50m
Delta
Sat 10/3111:00 am
MEL
- COS
2 stops28h 30m
Delta
Deal found 6/11![Delta logo]()
$1,850
This Fiji Airways deal was found by Cheapflights users on 6/12. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:58 am
DEN
- MEL
2 stops31h 22m
Multiple Airlines
Sat 11/71:35 pm
MEL
- DEN
2 stops23h 10m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,551
This BusinessClass deal was found by Cheapflights users on 6/11. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:30 pm
DEN
- HBA
2 stops47h 30m
Air New Zealand
Mon 3/16:05 am
HBA
- DEN
2 stops23h 58m
Air New Zealand
Deal found 6/11![Air New Zealand logo]()
$1,752
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:50 pm
DEN
- BNE
2 stops20h 40m
United Airlines
Mon 12/2811:40 am
BNE
- DEN
2 stops19h 41m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,761
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:49 pm
DEN
- PER
2 stops38h 56m
Qatar Airways
Sat 12/1210:45 pm
PER
- DEN
2 stops36h 45m
Qatar Airways
Deal found 6/9![Qatar Airways logo]()
$2,013
This KAYAK deal was found by Cheapflights users on 6/13. 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.
Sat 10/101:09 pm
COS
- MEL
2 stops24h 36m
Qantas Airways
Sat 10/3112:00 pm
MEL
- COS
1 stop39h 54m
Qantas Airways
Deal found 6/13![Qantas Airways logo]()
$2,052
This Fiji Airways deal was found by Cheapflights users on 6/9. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:55 pm
DEN
- SYD
2 stops29h 40m
Multiple Airlines
Fri 12/42:00 pm
SYD
- DEN
2 stops22h 44m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,553
This Air Canada deal was found by Cheapflights users on 6/13. 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.
Wed 8/194:00 pm
DEN
- SYD
2 stops23h 20m
Air Canada
Sun 8/239:20 am
SYD
- DEN
2 stops39h 14m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,743
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:39 pm
DEN
- SYD
1 stop40h 21m
United Airlines
Wed 11/2512:10 pm
SYD
- DEN
1 stop18h 20m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,768
This KAYAK deal was found by Cheapflights users on 6/11. 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 8/210:02 am
DEN
- HBA
3 stops39h 23m
Air New Zealand
Wed 8/126:05 am
HBA
- DEN
3 stops30h 04m
Air New Zealand
Deal found 6/11![Air New Zealand logo]()
$1,775
Last-minute flights from Colorado to AustraliaDiscover last-minute flight deals from Colorado to Australia. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Australia. Data last updated June 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 6/2010:39 pm
DEN
- BNE
1 stop38h 21m
Multiple Airlines
Thu 7/98:35 pm
BNE
- DEN
1 stop19h 54m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,240
This Trip.com deal was found by Cheapflights users on 6/12. 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 6/217:00 am
DEN
- BNE
2 stops35h 35m
Multiple Airlines
Sun 7/511:35 am
BNE
- DEN
2 stops28h 54m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,246
This Trip.com deal was found by Cheapflights users on 6/12. 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 6/237:25 am
DEN
- BNE
2 stops35h 15m
Multiple Airlines
Tue 7/711:35 am
BNE
- DEN
2 stops27h 47m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,095
This Trip.com deal was found by Cheapflights users on 6/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:25 am
DEN
- MEL
2 stops36h 35m
Multiple Airlines
Sun 7/51:30 pm
MEL
- DEN
2 stops26h 59m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,141
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Sat 7/47:00 am
DEN
- SYD
2 stops36h 50m
Multiple Airlines
Sat 7/181:15 pm
SYD
- DEN
2 stops27h 14m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,241
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/2110:39 pm
DEN
- BNE
1 stop38h 21m
Multiple Airlines
Tue 7/288:35 pm
BNE
- DEN
1 stop32h 48m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,149
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Sat 7/257:00 am
DEN
- MEL
2 stops37h 00m
Multiple Airlines
Sat 8/11:30 pm
MEL
- DEN
2 stops26h 59m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,125
This Trip.com deal was found by Cheapflights users on 6/13. 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 7/287:25 am
DEN
- BNE
2 stops35h 15m
Multiple Airlines
Tue 8/411:35 am
BNE
- DEN
3 stops36h 39m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,211
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/3010:39 pm
DEN
- MEL
2 stops43h 51m
Multiple Airlines
Tue 8/259:45 am
MEL
- DEN
1 stop40h 17m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,200
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/3010:39 pm
DEN
- MEL
2 stops43h 51m
Multiple Airlines
Wed 8/199:45 am
MEL
- DEN
1 stop40h 17m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,219
This Jetabroad deal was found by Cheapflights users on 6/11. 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.
Thu 7/306:10 pm
DEN
- MEL
2 stops33h 10m
Multiple Airlines
Sat 8/157:30 am
MEL
- DEN
2 stops28h 08m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,238
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Fri 7/317:00 am
DEN
- BNE
1 stop30h 00m
Multiple Airlines
Thu 8/208:35 pm
BNE
- DEN
1 stop20h 05m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,251
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 June 14, 2026.
Search for one-way flight options from Colorado to Australia. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Fri 9/1110:29 pm
DEN
- SYD
2 stops52h 41m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$563
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/257:25 am
DEN
- SYD
2 stops43h 45m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$598
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/1210:39 pm
DEN
- PER
3 stops55h 11m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$613
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/2610:39 pm
DEN
- SYD
1 stop40h 51m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$620
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Fri 7/2410:29 pm
DEN
- SYD
3 stops55h 46m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 9/710:39 pm
DEN
- AVV
3 stops48h 41m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 9/710:39 pm
DEN
- MEL
3 stops56h 46m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/247:00 am
DEN
- SYD
2 stops44h 10m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$670
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Fri 6/1910:39 pm
DEN
- MEL
2 stops45h 26m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$674
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Sun 10/49:15 am
DEN
- SYD
1 stop29h 15m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$675
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Fri 6/1910:39 pm
DEN
- AVV
3 stops48h 41m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$738
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Sun 7/267:00 am
DEN
- MEL
2 stops36h 30m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$742
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 June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $958 (Trip.com) |
One-way from | $563 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,390 |
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 June 14, 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
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Sun 8/2
6:21 pm-6:50 pm
2 stops32h 29m
Sydney Kingsford Smith
Sun 8/16
8:45 pm-10:33 am
2 stops29h 48m
$1,459
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Thu 10/1
7:08 pm-6:50 pm
2 stops31h 42m
Sydney Kingsford Smith
Thu 10/15
8:45 pm-11:35 am
2 stops31h 50m
$1,461
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Thu 8/20
3:09 pm-7:00 am
2 stops23h 51m
Sydney Kingsford Smith
Mon 8/24
10:20 am-4:26 pm
2 stops22h 06m
$1,466
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Thu 10/22
7:50 am-7:30 am
2 stops30h 40m
Sydney Kingsford Smith
Thu 11/5
11:15 am-9:28 pm
2 stops28h 13m
$1,470
Quickest round-trip
DenverBrisbane
DEN - BNE
DENBNE
Denver Intl
Tue 11/3
7:00 pm-8:45 am
1 stop20h 45m
Brisbane
Tue 11/10
10:45 am-12:08 pm
1 stop18h 23m
$1,489
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Mon 11/9
11:55 am-7:00 am
1 stop25h 05m
Sydney Kingsford Smith
Fri 11/13
11:50 am-9:22 pm
1 stop27h 32m
$1,498
DenverMelbourne
DEN - MEL
DENMEL
Denver Intl
Wed 12/2
1:25 pm-10:55 am
2 stops27h 30m
Melbourne
Sat 12/12
10:20 am-6:18 pm
2 stops25h 58m
$1,532
DenverMelbourne
DEN - AVV
DENAVV
Denver Intl
Wed 7/29
9:10 am-2:20 pm
2 stops37h 10m
Melbourne Avalon
Sat 8/22
4:40 pm-5:13 pm
2 stops40h 33m
$1,542
DenverMelbourne
DEN - MEL
DENMEL
Denver Intl
Sat 10/24
11:58 am-12:20 pm
2 stops31h 22m
Melbourne
Sat 11/7
1:35 pm-6:45 pm
2 stops23h 10m
$1,551
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Fri 11/13
12:55 pm-12:35 pm
2 stops29h 40m
Sydney Kingsford Smith
Fri 12/4
2:00 pm-6:44 pm
2 stops22h 44m
$1,553
Showing 1-10 of 60 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
COS-SYD
DEN-MEL
DEN-PER
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
COS-SYD
DEN-MEL
DEN-PER
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 December is currently the most expensive (average of $816). 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 33 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.
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 June 14, 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$1,203 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$682 | Average$761 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$745 | Average$924 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$770 | Average$1,262 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$800 | Average$1,384 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$844 | Average$1,081 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$853 | Average$1,484 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$946 | Average$1,280 | FlexibilityNo cancel fee | On-time78% |