$578+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Jul 2 — Jul 91
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 2, 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 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 8/117:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Mon 8/245:50 pm
SYD
- DEN
1 stop22h 50m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,136
This Trip.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:20 pm
DEN
- SYD
2 stops28h 30m
Multiple Airlines
Thu 7/236:15 am
SYD
- DEN
2 stops30h 57m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,151
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:02 pm
DEN
- BNE
1 stop24h 48m
Multiple Airlines
Tue 11/101:10 pm
BNE
- DEN
1 stop22h 02m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,170
This Trip.com deal was found by Cheapflights users on 5/30. 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 7/19:15 am
DEN
- MEL
3 stops34h 45m
Multiple Airlines
Wed 7/291:25 pm
MEL
- DEN
3 stops34h 49m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,171
This Trip.com deal was found by Cheapflights users on 5/29. 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 9/1712:02 pm
DEN
- MEL
1 stop26h 43m
Multiple Airlines
Mon 10/129:45 am
MEL
- DEN
1 stop31h 40m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,184
This Trip.com deal was found by Cheapflights users on 5/29. 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 7/123:20 pm
DEN
- SYD
2 stops28h 30m
Multiple Airlines
Tue 7/211:15 pm
SYD
- DEN
3 stops42h 55m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,218
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 6/107:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Mon 7/135:50 pm
SYD
- DEN
1 stop32h 13m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,232
This Kiwi.com deal was found by Cheapflights users on 5/29. 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
- SYD
1 stop40h 51m
Multiple Airlines
Tue 7/288:45 pm
SYD
- DEN
2 stops32h 38m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,236
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:20 pm
DEN
- SYD
1 stop24h 10m
Multiple Airlines
Mon 8/245:50 pm
SYD
- DEN
1 stop22h 50m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,247
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Wed 7/85:50 pm
SYD
- DEN
1 stop32h 13m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,256
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:25 am
DEN
- SYD
2 stops43h 45m
Multiple Airlines
Wed 8/265:50 pm
SYD
- DEN
1 stop40h 36m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,260
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:20 pm
DEN
- SYD
1 stop24h 10m
Multiple Airlines
Thu 8/275:50 pm
SYD
- DEN
1 stop22h 50m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,271
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 2, 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 2, 2026.
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:07 pm
COS
- SYD
2 stops21h 53m
United Airlines
Tue 7/710:20 am
SYD
- COS
2 stops20h 07m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,314
This Air Canada deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
COS
- SYD
2 stops33h 20m
Air Canada
Wed 8/269:20 am
SYD
- COS
2 stops39h 20m
Air Canada
Deal found 6/1![Air Canada logo]()
$1,336
This American Airlines deal was found by Cheapflights users on 5/30. 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.
Sun 8/21:22 pm
COS
- SYD
2 stops25h 03m
American Airlines
Sat 8/812:00 pm
SYD
- COS
1 stop18h 54m
American Airlines
Deal found 5/30![American Airlines logo]()
$1,361
This Alaska Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:34 pm
DEN
- SYD
2 stops33h 16m
Multiple Airlines
Tue 9/18:45 pm
SYD
- DEN
2 stops31h 35m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,383
This Expedia deal was found by Cheapflights users on 5/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:04 am
DEN
- ADL
2 stops37h 21m
Air New Zealand
Mon 7/2712:05 pm
ADL
- DEN
2 stops26h 40m
Air New Zealand
Deal found 5/30![Air New Zealand logo]()
$1,509
This Turkish Airlines deal was found by Cheapflights users on 5/29. 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 5/29![Turkish Airlines logo]()
$1,600
This Qatar Airways deal was found by Cheapflights users on 5/31. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 am
DEN
- PER
2 stops45h 30m
Qatar Airways
Wed 10/2810:45 pm
PER
- DEN
2 stops37h 36m
Qatar Airways
Deal found 5/31![Qatar Airways logo]()
$1,665
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:56 pm
DEN
- SYD
2 stops22h 54m
Delta
Mon 8/249:15 am
SYD
- DEN
2 stops24h 33m
Delta
Deal found 6/1![Delta logo]()
$1,814
This Expedia deal was found by Cheapflights users on 5/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:12 pm
DEN
- ADL
2 stops32h 43m
Qantas Airways
Mon 7/206:00 am
ADL
- DEN
2 stops27h 10m
Qantas Airways
Deal found 5/30![Qantas Airways logo]()
$1,815
This United Airlines deal was found by Cheapflights users on 5/28. 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.
Sun 8/25:07 pm
COS
- SYD
2 stops45h 53m
United Airlines
Sat 8/89:30 am
SYD
- COS
2 stops23h 02m
United Airlines
Deal found 5/28![United Airlines logo]()
$1,378
This American Airlines deal was found by Cheapflights users on 5/31. 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 10/1010:12 am
COS
- MEL
1 stop25h 48m
American Airlines
Sat 10/3112:00 pm
MEL
- COS
1 stop21h 44m
American Airlines
Deal found 5/31![American Airlines logo]()
$1,392
This Alaska Airlines deal was found by Cheapflights users on 5/30. 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 8/271:43 pm
DEN
- SYD
2 stops37h 07m
Multiple Airlines
Sat 9/128:45 pm
SYD
- DEN
2 stops31h 35m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,470
This FlightHub deal was found by Cheapflights users on 5/29. 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.
Sun 8/211:23 am
DEN
- BNE
2 stops27h 42m
Air Canada
Wed 8/1210:00 am
BNE
- DEN
2 stops38h 47m
Air Canada
Deal found 5/29![Air Canada logo]()
$1,478
This Alaska Airlines deal was found by Cheapflights users on 5/31. 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 8/271:43 pm
DEN
- SYD
2 stops37h 07m
Multiple Airlines
Sun 9/68:45 pm
SYD
- DEN
2 stops30h 19m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,491
This Justfly.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:10 pm
DEN
- BNE
2 stops44h 55m
Air Canada
Wed 8/2610:00 am
BNE
- DEN
1 stop23h 13m
Air Canada
Deal found 5/28![Air Canada logo]()
$1,509
This BusinessClass deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:39 pm
DEN
- HBA
2 stops44h 26m
Air New Zealand
Mon 3/16:05 am
HBA
- DEN
2 stops28h 02m
Air New Zealand
Deal found 6/2![Air New Zealand logo]()
$1,740
This FlightHub deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1411:23 am
DEN
- BNE
2 stops27h 42m
Air Canada
Sun 6/2810:00 am
BNE
- DEN
2 stops38h 30m
Air Canada
Deal found 6/1![Air Canada logo]()
$1,518
This Fiji Airways deal was found by Cheapflights users on 5/28. 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 8/286:26 pm
DEN
- SYD
2 stops25h 24m
Multiple Airlines
Mon 8/311:15 pm
SYD
- DEN
2 stops26h 42m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,556
This Qatar Airways deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:22 am
DEN
- PER
2 stops44h 13m
Qatar Airways
Sat 8/2210:45 pm
PER
- DEN
2 stops38h 31m
Qatar Airways
Deal found 6/1![Qatar Airways logo]()
$1,884
This Delta deal was found by Cheapflights users on 5/28. 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.
Mon 7/135:40 am
DEN
- SYD
2 stops33h 10m
Delta
Mon 7/279:15 am
SYD
- DEN
2 stops29h 25m
Delta
Deal found 5/28![Delta logo]()
$1,915
This FlightHub deal was found by Cheapflights users on 5/30. 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.
Fri 6/269:10 am
DEN
- BNE
1 stop29h 55m
Air Canada
Mon 7/2010:00 am
BNE
- DEN
2 stops38h 45m
Air Canada
Deal found 5/30![Air Canada logo]()
$1,532
This Air Canada deal was found by Cheapflights users on 5/30. 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
- AVV
2 stops26h 30m
Multiple Airlines
Sat 10/38:40 pm
AVV
- DEN
2 stops31h 51m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,560
This United Airlines deal was found by Cheapflights users on 5/28. 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.
Sun 7/56:00 am
DEN
- BNE
1 stop32h 30m
United Airlines
Sat 7/185:05 pm
BNE
- DEN
2 stops35h 08m
United Airlines
Deal found 5/28![United Airlines logo]()
$1,943
This oojo deal was found by Cheapflights users on 5/30. 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 6/1311:59 pm
DEN
- PER
2 stops52h 36m
Qatar Airways
Fri 7/310:45 pm
PER
- DEN
2 stops38h 00m
Qatar Airways
Deal found 5/30![Qatar Airways logo]()
$1,978
This Delta deal was found by Cheapflights users on 5/29. 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.
Sun 6/287:00 pm
DEN
- MEL
2 stops44h 50m
Delta
Fri 7/1010:00 am
MEL
- DEN
2 stops20h 53m
Delta
Deal found 5/29![Delta logo]()
$1,980
This Air New Zealand deal was found by Cheapflights users on 5/30. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:45 pm
DEN
- CNS
3 stops31h 10m
Air New Zealand
Thu 12/36:00 am
CNS
- DEN
3 stops28h 50m
Air New Zealand
Deal found 5/30![Air New Zealand logo]()
$1,982
This Justfly.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:33 pm
DEN
- BNE
2 stops45h 32m
Air Canada
Fri 7/310:00 am
BNE
- DEN
1 stop23h 13m
Air Canada
Deal found 5/30![Air Canada logo]()
$1,556
This Alaska Airlines deal was found by Cheapflights users on 5/28. 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 6/127:05 pm
DEN
- SYD
2 stops31h 45m
Multiple Airlines
Thu 6/188:45 pm
SYD
- DEN
2 stops40h 55m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,567
This oojo deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/139:10 pm
DEN
- PER
2 stops52h 50m
Air New Zealand
Fri 7/34:25 pm
PER
- DEN
2 stops39h 47m
Air New Zealand
Deal found 6/2![Air New Zealand logo]()
$1,987
This United Airlines deal was found by Cheapflights users on 5/28. 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 6/266:05 pm
DEN
- ADL
2 stops25h 30m
United Airlines
Fri 7/38:00 pm
ADL
- DEN
2 stops33h 53m
United Airlines
Deal found 5/28![United Airlines logo]()
$2,046
Last-minute flights from Colorado to AustraliaDiscover last-minute flight deals from Colorado to Australia. Data last updated June 2, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Australia. Data last updated June 2, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:00 pm
DEN
- SYD
1 stop25h 05m
Multiple Airlines
Tue 6/99:10 am
SYD
- DEN
1 stop20h 01m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,316
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 6/82:00 pm
DEN
- SYD
1 stop25h 30m
Multiple Airlines
Tue 7/75:50 pm
SYD
- DEN
1 stop21h 32m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,273
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 6/107:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Mon 7/135:50 pm
SYD
- DEN
1 stop32h 13m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,232
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 6/3012:47 pm
DEN
- SYD
2 stops26h 43m
Multiple Airlines
Tue 7/75:50 pm
SYD
- DEN
1 stop32h 13m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$1,260
This Trip.com deal was found by Cheapflights users on 5/30. 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 7/19:15 am
DEN
- MEL
3 stops34h 45m
Multiple Airlines
Wed 7/291:25 pm
MEL
- DEN
3 stops34h 49m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,171
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Wed 7/85:50 pm
SYD
- DEN
1 stop32h 13m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,256
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:07 pm
COS
- SYD
2 stops21h 53m
United Airlines
Tue 7/710:20 am
SYD
- COS
2 stops20h 07m
United Airlines
Deal found 6/1![United Airlines logo]()
$1,314
This Trip.com deal was found by Cheapflights users on 5/29. 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 7/123:20 pm
DEN
- SYD
2 stops28h 30m
Multiple Airlines
Tue 7/211:15 pm
SYD
- DEN
3 stops42h 55m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,218
This Trip.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:20 pm
DEN
- SYD
2 stops28h 30m
Multiple Airlines
Thu 7/236:15 am
SYD
- DEN
2 stops30h 57m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,151
This Kiwi.com deal was found by Cheapflights users on 5/29. 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
- SYD
1 stop40h 51m
Multiple Airlines
Tue 7/288:45 pm
SYD
- DEN
2 stops32h 38m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,236
This Trip.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:00 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Mon 8/109:10 am
SYD
- DEN
2 stops26h 36m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,322
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:25 am
DEN
- SYD
1 stop32h 05m
Multiple Airlines
Mon 8/105:50 pm
SYD
- DEN
1 stop22h 39m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$1,300
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 2, 2026.
Search for one-way flight options from Colorado to Australia. Find affordable one-way fares based on user searches. Data last updated June 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:25 am
DEN
- BNE
3 stops41h 35m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$578
This Kiwi.com deal was found by Cheapflights users on 5/31. 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 7/257:00 am
DEN
- SYD
3 stops56h 30m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 5/30. 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 7/2410:39 pm
DEN
- SYD
3 stops55h 36m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$653
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Sun 6/219:20 am
COS
- SYD
2 stops29h 40m
United Airlines
Deal found 5/29![United Airlines logo]()
$696
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:39 pm
DEN
- SYD
1 stop40h 51m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/275:07 pm
COS
- SYD
2 stops45h 53m
United Airlines
Deal found 5/29![United Airlines logo]()
$716
This Kiwi.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:25 am
DEN
- SYD
2 stops43h 25m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$719
This Trip.com deal was found by Cheapflights users on 5/29. 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 stops50h 28m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$720
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/256:00 am
COS
- SYD
2 stops33h 00m
United Airlines
Deal found 5/29![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 5/29. 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 6/266:32 pm
COS
- SYD
2 stops44h 28m
United Airlines
Deal found 5/29![United Airlines logo]()
$758
This Kiwi.com deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/268:33 pm
DEN
- MEL
2 stops54h 47m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$762
This Kiwi.com deal was found by Cheapflights users on 5/29. 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 9/2012:02 pm
DEN
- AVV
2 stops42h 48m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$792
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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,136 (Kiwi.com) |
One-way from | $578 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,407 |
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 2, 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
Quickest round-trip
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Wed 7/1
5:07 pm-7:00 am
2 stops21h 53m
Sydney Kingsford Smith
Tue 7/7
10:20 am-2:27 pm
2 stops20h 07m
$1,314
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Sat 8/22
6:00 am-7:20 am
2 stops33h 20m
Sydney Kingsford Smith
Wed 8/26
9:20 am-8:40 am
2 stops39h 20m
$1,336
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Sun 8/2
1:22 pm-6:25 am
2 stops25h 03m
Sydney Kingsford Smith
Sat 8/8
12:00 pm-2:54 pm
1 stop18h 54m
$1,361
Colorado SpringsSydney
COS - SYD
COSSYD
Colorado Springs
Sun 8/2
5:07 pm-7:00 am
2 stops45h 53m
Sydney Kingsford Smith
Sat 8/8
9:30 am-4:32 pm
2 stops23h 02m
$1,378
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Wed 8/26
5:34 pm-6:50 pm
2 stops33h 16m
Sydney Kingsford Smith
Tue 9/1
8:45 pm-12:20 pm
2 stops31h 35m
$1,383
Colorado SpringsMelbourne
COS - MEL
COSMEL
Colorado Springs
Sat 10/10
10:12 am-5:00 am
1 stop25h 48m
Melbourne
Sat 10/31
12:00 pm-4:44 pm
1 stop21h 44m
$1,392
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Thu 8/27
1:43 pm-6:50 pm
2 stops37h 07m
Sydney Kingsford Smith
Sat 9/12
8:45 pm-12:20 pm
2 stops31h 35m
$1,470
DenverBrisbane
DEN - BNE
DENBNE
Denver Intl
Sun 8/2
11:23 am-7:05 am
2 stops27h 42m
Brisbane
Wed 8/12
10:00 am-8:47 am
2 stops38h 47m
$1,478
DenverSydney
DEN - SYD
DENSYD
Denver Intl
Thu 8/27
1:43 pm-6:50 pm
2 stops37h 07m
Sydney Kingsford Smith
Sun 9/6
8:45 pm-11:04 am
2 stops30h 19m
$1,491
DenverAdelaide
DEN - ADL
DENADL
Denver Intl
Mon 7/6
6:04 am-10:55 am
2 stops37h 21m
Adelaide
Mon 7/27
12:05 pm-11:15 pm
2 stops26h 40m
$1,509
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
DEN-MEL
COS-SYD
DEN-BNE
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
COS-SYD
DEN-BNE
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.
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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Complete your 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 2, 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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$1,203 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$682 | Average$763 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$745 | Average$924 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$770 | Average$1,266 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$800 | Average$1,386 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$844 | Average$1,081 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$853 | Average$1,483 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,033 | Average$1,280 | FlexibilityNo cancel fee | On-time78% |