What are the cheapest airlines to fly from Colorado to Australia one-way?

The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $621. However, be on the lookout for offers from Qantas Airways and Air Canada, as they are both options that can get you from Colorado to Australia for a low price.

What is the cheapest month to fly from Colorado to Australia?

Flights from Colorado to Australia lean towards being more expensive in December. Prices are generally better when you fly from Colorado to Australia in April, with the cheapest ticket starting at $806.

Can I find deals for flights from Colorado to Australia that include hotel bookings?

Yes. In addition to deals on Colorado to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Colorado to Australia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Australia.

Can I find deals for business class flights from Colorado to Australia?

Yes. Cheapflights offers flight deals from Colorado to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,479+ Flights from Colorado to Australia

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Cheap flight deals from Colorado to Australia

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$782 (Trip.com)
One-way from	$525 (Kiwi.com)
Popular in	December
Cheapest in	April
Average price	$871

Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.

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Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.

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From Colorado to Australia

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One-way flight from Colorado to Australia

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Highest demand for flights based on searches. 12% potential increase in price ($159 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Colorado to Australia

Cheapest flights from Colorado to Australia
Explore the most affordable flight options available from Colorado to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Sun 11/24:18 pmDEN - BNE

1 stop19h 42mQantas Airways

Wed 11/197:25 pmBNE - DEN

1 stop33h 59mQantas Airways

Deal found 4/23

$891

Sun 11/24:18 pmDEN - BNE

1 stop19h 42mAmerican Airlines

Wed 11/197:25 pmBNE - DEN

2 stops19h 17mAmerican Airlines

Deal found 4/23

$925

Tue 11/2511:21 amDEN - BNE

2 stops28h 19mAir Canada

Thu 12/2510:45 amBNE - DEN

2 stops24h 19mAir Canada

Deal found 4/23

$1,022

Wed 8/135:59 pmDEN - SYD

2 stops24h 36mAir New Zealand

Wed 8/209:55 amSYD - DEN

2 stops25h 58mAir New Zealand

Deal found 4/23

$1,095

Thu 11/134:18 pmDEN - SYD

2 stops24h 02mQantas Airways

Sat 11/226:05 amSYD - DEN

2 stops29h 37mQantas Airways

Deal found 4/23

$1,103

Tue 10/216:51 pmDEN - SYD

2 stops24h 54mFiji Airways

Thu 10/302:15 pmSYD - DEN

2 stops22h 42mFiji Airways

Deal found 4/22

$1,134

Thu 5/296:40 amDEN - SYD

2 stops34h 20mChina Eastern

Sat 6/711:00 amSYD - DEN

2 stops47h 19mChina Eastern

Deal found 4/23

$1,162

Tue 8/55:59 pmDEN - MEL

2 stops24h 51mAir New Zealand

Tue 8/1212:05 pmMEL - DEN

2 stops23h 35mAir New Zealand

Deal found 4/23

$1,163

Fri 11/284:59 pmDEN - CNS

2 stops37h 16mMultiple Airlines

Sun 12/149:15 amCNS - DEN

2 stops44h 04mMultiple Airlines

Deal found 4/23

$1,176

Tue 11/254:18 pmDEN - CNS

2 stops26h 42mQantas Airways

Wed 12/106:00 amCNS - DEN

2 stops24h 32mQantas Airways

Deal found 4/23

$1,187

Tue 10/1411:23 amDEN - BNE

2 stops27h 42mMultiple Airlines

Fri 10/319:45 amBNE - DEN

1 stop19h 48mMultiple Airlines

Deal found 4/22

$1,241

Sat 5/318:25 amDEN - SYD

1 stop31h 05mMultiple Airlines

Sat 6/149:10 amSYD - DEN

1 stop22h 33mMultiple Airlines

Deal found 4/23

$1,243

Best flights from Colorado to Australia
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 24, 2025.

Tue 5/68:00 amDEN - MEL

2 stops35h 30mMultiple Airlines

Sat 5/1012:55 pmMEL - DEN

2 stops25h 17mMultiple Airlines

Deal found 4/22

$782

Wed 8/135:59 pmDEN - SYD

2 stops24h 36mAir New Zealand

Wed 8/209:55 amSYD - DEN

2 stops25h 58mAir New Zealand

Deal found 4/23

$1,095

Tue 10/216:51 pmDEN - SYD

2 stops24h 54mFiji Airways

Thu 10/302:15 pmSYD - DEN

2 stops22h 42mFiji Airways

Deal found 4/22

$1,134

Thu 5/296:40 amDEN - SYD

2 stops34h 20mChina Eastern

Sat 6/711:00 amSYD - DEN

2 stops47h 19mChina Eastern

Deal found 4/23

$1,162

Wed 8/137:05 pmDEN - SYD

1 stop20h 15mAir Canada

Wed 8/209:20 amSYD - DEN

1 stop26h 10mAir Canada

Deal found 4/23

$1,244

Mon 6/1611:40 amDEN - SYD

1 stop27h 50mQantas Airways

Tue 7/89:10 amSYD - DEN

1 stop24h 27mQantas Airways

Deal found 4/23

$1,263

Mon 6/166:59 pmDEN - SYD

2 stops20h 06mAmerican Airlines

Tue 7/85:45 pmSYD - DEN

2 stops21h 59mAmerican Airlines

Deal found 4/23

$1,338

Sun 6/225:59 pmDEN - MEL

1 stop22h 16mUnited Airlines

Tue 7/810:55 amMEL - DEN

1 stop21h 41mUnited Airlines

Deal found 4/22

$1,346

Mon 6/167:21 pmDEN - SYD

1 stop19h 14mDelta

Mon 6/309:25 amSYD - DEN

1 stop24h 54mDelta

Deal found 4/23

$1,367

Wed 5/287:05 pmDEN - SYD

2 stops32h 40mAlaska Airlines

Fri 6/139:40 pmSYD - DEN

2 stops42h 19mAlaska Airlines

Deal found 4/23

$1,386

Mon 8/185:59 pmDEN - PER

2 stops30h 41mSingapore Airlines

Mon 9/11:45 pmPER - DEN

3 stops43h 55mSingapore Airlines

Deal found 4/23

$1,744

Tue 10/145:42 pmDEN - BNE

2 stops36h 43mCathay Pacific

Thu 10/3012:10 amBNE - DEN

2 stops36h 17mCathay Pacific

Deal found 4/22

$1,746

Last-minute flights from Colorado to Australia
Discover last-minute flight deals from Colorado to Australia. Data last updated April 24, 2025 and is based on user searches.

Tue 4/297:00 amDEN - SYD

2 stops44h 45mMultiple Airlines

Sat 5/1011:50 amSYD - DEN

2 stops44h 37mMultiple Airlines

Deal found 4/22

$8,061

Tue 4/298:15 amDEN - SYD

1 stop31h 05mAir Canada

Sat 5/109:20 amSYD - DEN

1 stop26h 03mAir Canada

Deal found 4/22

$10,987

Tue 5/66:33 pmDEN - MEL

2 stops32h 47mMultiple Airlines

Sat 5/107:30 amMEL - DEN

2 stops28h 46mMultiple Airlines

Deal found 4/23

$1,364

Tue 5/206:33 pmDEN - SYD

2 stops25h 12mFiji Airways

Tue 5/276:15 amSYD - DEN

2 stops30h 01mFiji Airways

Deal found 4/22

$1,184

Tue 5/2012:58 pmDEN - SYD

1 stop26h 07mQantas Airways

Tue 5/279:10 amSYD - DEN

1 stop22h 50mQantas Airways

Deal found 4/22

$1,404

Tue 5/202:45 pmDEN - SYD

2 stops23h 20mAmerican Airlines

Tue 5/2710:25 amSYD - DEN

1 stop19h 28mAmerican Airlines

Deal found 4/22

$1,478

Wed 5/215:55 pmDEN - SYD

2 stops22h 50mAir New Zealand

Wed 5/289:30 amSYD - DEN

1 stop26h 10mAir New Zealand

Deal found 4/23

$1,461

Tue 5/2711:24 amDEN - SYD

2 stops27h 56mAir Canada

Tue 6/39:20 amSYD - DEN

1 stop23h 18mAir Canada

Deal found 4/23

$1,459

Tue 5/274:30 pmDEN - MEL

1 stop22h 15mQantas Airways

Thu 7/1711:55 amMEL - DEN

1 stop21h 42mQantas Airways

Deal found 4/22

$1,531

Wed 5/287:05 pmDEN - SYD

2 stops32h 40mAlaska Airlines

Tue 6/179:40 pmSYD - DEN

2 stops42h 19mAlaska Airlines

Deal found 4/23

$1,386

Wed 5/287:25 pmDEN - SYD

1 stop19h 35mUnited Airlines

Tue 6/1710:20 amSYD - DEN

1 stop17h 57mUnited Airlines

Deal found 4/23

$1,508

Wed 5/2812:54 pmDEN - SYD

2 stops25h 41mDelta

Mon 6/169:25 amSYD - DEN

1 stop18h 08mDelta

Deal found 4/23

$1,522

One-way flights from Colorado to Australia
Search for one-way flight options from Colorado to Australia. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Sat 5/318:50 amDEN - BNE

3 stops43h 40mMultiple Airlines

Deal found 4/23

$525

Fri 7/259:15 pmDEN - SYD

2 stops46h 30mMultiple Airlines

Deal found 4/23

$549

Fri 8/19:15 pmDEN - MEL

2 stops47h 00mMultiple Airlines

Deal found 4/23

$552

Fri 8/19:15 pmDEN - AVV

3 stops50h 50mMultiple Airlines

Deal found 4/23

$604

Tue 5/206:33 pmDEN - SYD

2 stops25h 12mFiji Airways

Deal found 4/23

$621

Sat 5/316:33 pmDEN - BNE

2 stops24h 02mFiji Airways

Deal found 4/23

$662

Sat 7/56:07 pmDEN - SYD

1 stop20h 58mQantas Airways

Deal found 4/22

$777

Wed 5/2111:23 amDEN - SYD

2 stops27h 57mAir Canada

Deal found 4/23

$781

Sun 6/156:00 amDEN - PER

3 stops50h 50mMultiple Airlines

Deal found 4/23

$822

Thu 7/105:59 pmDEN - SYD

1 stop21h 01mUnited Airlines

Deal found 4/23

$835

Thu 6/268:00 pmDEN - MEL

1 stop20h 15mUnited Airlines

Deal found 4/23

$869

Sat 5/317:15 pmDEN - BNE

1 stop19h 50mAir Canada

Deal found 4/23

$879

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Tue 5/6

8:00 am-11:30 am

2 stops35h 30m

Melbourne

Sat 5/10

12:55 pm-10:12 pm

2 stops25h 17m

$782

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 5/29

6:40 am-9:00 am

2 stops34h 20m

Sydney Kingsford Smith

Sat 6/7

11:00 am-6:19 pm

2 stops47h 19m

$1,162

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 6/10

6:31 pm-11:45 am

2 stops25h 14m

Sydney Kingsford Smith

Tue 9/16

1:15 pm-8:00 pm

2 stops22h 45m

$1,180

DenverMelbourne

DEN - MEL

DENMEL

Denver Intl

Mon 9/1

8:02 am-10:50 am

2 stops34h 48m

Melbourne

Wed 10/1

7:35 am-6:14 pm

2 stops26h 39m

$1,210

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/3

8:31 pm-8:45 am

2 stops44h 14m

Sydney Kingsford Smith

Sun 7/13

11:50 am-9:50 pm

2 stops26h 00m

$1,221

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 10/14

11:23 am-7:05 am

2 stops27h 42m

Brisbane

Fri 10/31

9:45 am-1:33 pm

1 stop19h 48m

$1,241

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 5/31

8:25 am-7:30 am

1 stop31h 05m

Sydney Kingsford Smith

Sat 6/14

9:10 am-3:43 pm

1 stop22h 33m

$1,243

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 6/16

11:40 am-7:30 am

1 stop27h 50m

Sydney Kingsford Smith

Tue 7/8

9:10 am-5:37 pm

1 stop24h 27m

$1,263

DenverBrisbane

DEN - BNE

DENBNE

Denver Intl

Tue 10/14

11:23 am-7:05 am

2 stops27h 42m

Brisbane

Fri 10/31

9:45 am-6:04 pm

2 stops24h 19m

$1,276

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 6/16

6:59 pm-7:05 am

2 stops20h 06m

Sydney Kingsford Smith

Tue 7/8

5:45 pm-11:44 pm

2 stops21h 59m

$1,338

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 56 results

...

Best time to book a flight from Colorado to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Colorado with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Australia

What is the cheapest month to book a flight from Colorado to Australia?

Currently, February is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,046). Flying from Colorado to Australia in December is currently the most expensive (average of $1,643). 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.

What is the cheapest time of day to fly from CO to AU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Australia as you normally would.

Rainfall in Australia by month

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

See what other customers who have flown with Air Tahiti Nui, ANA and Fiji Airways from Colorado to Australia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui

8.8

Very good

62 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very good

853 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Fiji Airways

8.1

Very good

188 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very good

1,290 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Delta

8.0

Very good

7,920 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What are the cheapest airlines to fly from Colorado to Australia one-way?
The cheapest airline one-way is Fiji Airways, with whom users have recently found tickets for as low as $621. However, be on the lookout for offers from Qantas Airways and Air Canada, as they are both options that can get you from Colorado to Australia for a low price.
Can I find deals for flights from Colorado to Australia that include hotel bookings?
Yes. In addition to deals on Colorado to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Colorado to Australia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Australia.
Can I find deals for business class flights from Colorado to Australia?
Yes. Cheapflights offers flight deals from Colorado to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Colorado to Australia?
Currently, February is the cheapest month in which you can book a flight from Colorado to Australia (average of $1,046). Flying from Colorado to Australia in December is currently the most expensive (average of $1,643). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Colorado to Australia

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$645	Average$1,228	FlexibilityNo cancel fee	On-time74%
American Airlines	Cheapest$693	Average$1,009	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$768	Average$856	FlexibilityNo cancel fee	On-time75%
Air New Zealand	Cheapest$834	Average$1,547	FlexibilityNo cancel fee	On-time78%
Delta	Cheapest$848	Average$1,295	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$951	Average$1,317	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$1,032	Average$1,574	FlexibilityNo cancel fee	On-time69%

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$525+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Colorado to Australia with Cheapflights

1. Tell us where you want to go

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Cheap 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 24, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Colorado to Australia

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 24, 2025.

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 24, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado to Australia that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Australia

What is the cheapest month to book a flight from Colorado to Australia?

What is the cheapest time of day to fly from CO to AU?

Find hourly flight availability from Colorado to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

Reviews of airlines servicing Australia

See what other customers who have flown with Air Tahiti Nui, ANA and Fiji Airways from Colorado to Australia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Colorado to Australia one-way?

Can I find deals for flights from Colorado to Australia that include hotel bookings?

How can I find direct flights from Colorado to Australia?

Can I find deals for business class flights from Colorado to Australia?

What is the cheapest month to book a flight from Colorado to Australia?

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.

Alternative routes for Colorado to Australia

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Colorado to Australia

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Cheapest flights from Colorado to Australia
Explore the most affordable flight options available from Colorado to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.