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$567+ Cheap flights from Australia to Colorado

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Australia to Colorado

Cheapest flights from Australia to Colorado
Explore the most affordable flight options available from Australia to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/16. 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 12/2810:40 amBNE - DEN
1 stop42h 35mDelta
Wed 1/286:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,029
This Delta deal was found by Cheapflights users on 12/16. 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 12/2810:40 amBNE - DEN
1 stop42h 35mDelta
Fri 1/306:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,078
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/1711:20 amSYD - DEN
1 stop24h 35mUnited Airlines
Sun 1/45:42 pmDEN - SYD
1 stop21h 23mUnited Airlines
Deal found 12/16$1,116
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/1711:20 amSYD - DEN
1 stop19h 07mUnited Airlines
Sat 1/31:43 pmDEN - SYD
2 stops25h 32mUnited Airlines
Deal found 12/16$1,166
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:20 amSYD - DEN
1 stop23h 17mUnited Airlines
Sat 1/36:53 pmDEN - SYD
1 stop42h 07mUnited Airlines
Deal found 12/17$1,191
This Delta deal was found by Cheapflights users on 12/16. 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 12/2411:05 amBNE - DEN
1 stop42h 10mDelta
Mon 1/266:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,230
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/2011:40 amBNE - DEN
2 stops27h 32mUnited Airlines
Tue 1/611:35 amDEN - BNE
2 stops28h 25mUnited Airlines
Deal found 12/16$1,252
This Delta deal was found by Cheapflights users on 12/16. 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 12/2411:05 amBNE - DEN
1 stop42h 10mDelta
Fri 1/306:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,280
This Delta deal was found by Cheapflights users on 12/16. 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 12/2610:40 amBNE - DEN
1 stop42h 35mDelta
Mon 1/266:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,282
This Delta deal was found by Cheapflights users on 12/16. 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 12/2610:40 amBNE - DEN
1 stop42h 35mDelta
Fri 1/306:14 pmDEN - BNE
1 stop21h 06mDelta
Deal found 12/16$1,332
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/3111:40 amBNE - DEN
1 stop23h 31mUnited Airlines
Fri 1/163:58 pmDEN - BNE
1 stop22h 32mUnited Airlines
Deal found 12/16$1,427
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/2411:40 amBNE - DEN
1 stop41h 43mUnited Airlines
Sun 1/253:58 pmDEN - BNE
1 stop22h 32mUnited Airlines
Deal found 12/16$1,485

Find flight deals from Australia to Colorado

Keep the following information in mind while searching for Australia to Colorado flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$802
(Trip.com)

One-way from

$567
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,457
Provider with most accurate pricing for Sydney Kingsford Smith-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Denver Intl flights.
Search Deals
From Australia to Colorado
Search Deals
One-way flight from Australia to Colorado
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Colorado 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 December 18, 2025.
Use the filters below to find and compare flights from Australia to Colorado that are best for you.

Fly from

Australia

Fly to

Colorado

Route

Depart

Return

Price

MelbourneDenver

MEL - DEN

MELDEN

Melbourne

Fri 1/30

1:55 pm-11:31 pm

2 stops27h 36m

Denver Intl

Fri 2/6

6:05 am-12:25 pm

2 stops36h 20m

$802

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 1/30

2:00 pm-11:31 pm

2 stops27h 31m

Denver Intl

Fri 2/6

6:05 am-10:05 pm

2 stops46h 00m

$863

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 2/1

2:00 pm-11:31 pm

2 stops27h 31m

Denver Intl

Sun 2/8

6:05 am-12:35 pm

2 stops36h 30m

$905

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Thu 1/15

11:40 am-6:18 pm

2 stops23h 38m

Denver Intl

Sat 1/31

8:50 pm-7:30 am

2 stops41h 40m

$978

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Wed 2/4

11:40 am-4:32 pm

2 stops21h 52m

Denver Intl

Tue 2/24

4:03 pm-7:30 am

2 stops22h 27m

$979

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Wed 2/4

11:40 am-6:23 pm

1 stop23h 43m

Denver Intl

Sat 2/21

9:20 pm-7:30 am

1 stop41h 10m

$979

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Mon 2/2

11:40 am-4:32 pm

2 stops21h 52m

Denver Intl

Tue 2/24

1:45 pm-7:30 am

2 stops24h 45m

$979

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Tue 2/3

11:40 am-12:23 pm

1 stop17h 43m

Denver Intl

Wed 2/25

1:45 pm-7:30 am

2 stops24h 45m

$979

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Tue 2/3

11:40 am-12:23 pm

1 stop17h 43m

Denver Intl

Mon 2/23

9:47 am-7:30 am

2 stops28h 43m

$979

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Mon 2/2

11:40 am-12:23 pm

1 stop17h 43m

Denver Intl

Wed 2/25

9:47 am-7:30 am

2 stops28h 43m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Australia to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Australia 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 Australia to Colorado

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

Currently, February is the cheapest month in which you can book a flight from Australia to Colorado (average of $445). Flying from Australia to Colorado in December is currently the most expensive (average of $974). 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 AU to CO?

Find hourly flight availability from Australia to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Australia to Colorado at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Qantas Airways, United Airlines, and American Airlines from Australia to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.1

Comfort

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.1

Comfort

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
United Airlines
7.4
Good
9,093 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.1

Comfort

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
American Airlines
7.2
Good
11,055 reviews
Qantas Airways
7.5
Good
947 reviews

Boarding

7.7

Overall

7.5

Entertainment

7.2

Crew

8.1

Comfort

7.5

Food

7.0

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

Related info for your journey

Find useful and relevant information for your journey from Australia to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Australia to Colorado?

    For as low as $1,016, United Airlines can have you in Colorado from Australia in 21h 09m. Airlines will cover a distance of 8781 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Australia to Colorado are Qantas Airways ($353), United Airlines ($776), and Delta ($820).

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

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

  • How can I find direct flights from Australia to Colorado?

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

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

    Yes. Cheapflights offers flight deals from Australia to Colorado 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 Australia to Colorado?

    Currently, February is the cheapest month in which you can book a flight from Australia to Colorado (average of $445). Flying from Australia to Colorado in December is currently the most expensive (average of $974). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Australia to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Australia to Colorado

Discover the top 3 airlines that operate flights from Australia to Colorado. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$693Average$961FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$775Average$1,155FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$977Average$1,427FlexibilityNo cancel feeOn-time69%

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