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Colorado

$545+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This BYOjet deal was found by Cheapflights users on 10/30. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:00 amSYD - DEN
2 stops21h 23mMultiple Airlines
Thu 12/410:06 amDEN - SYD
2 stops26h 49mMultiple Airlines
Deal found 10/30$834
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:10 pmSYD - COS
2 stops20h 19mUnited Airlines
Sat 1/1711:43 amCOS - SYD
2 stops49h 17mUnited Airlines
Deal found 10/30$931
This Qantas Airways deal was found by Cheapflights users on 10/30. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:05 pmSYD - COS
1 stop22h 01mQantas Airways
Sat 1/173:05 pmCOS - SYD
1 stop21h 50mQantas Airways
Deal found 10/30$972
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 11/1711:20 amSYD - COS
2 stops24h 46mAmerican Airlines
Sat 1/178:16 amCOS - SYD
1 stop28h 39mAmerican Airlines
Deal found 10/30$979
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:30 amCBR - DEN
2 stops29h 14mMultiple Airlines
Thu 12/48:45 amDEN - CBR
2 stops38h 15mMultiple Airlines
Deal found 10/30$994
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 12/112:00 pmMEL - DEN
1 stop22h 05mAmerican Airlines
Fri 12/265:05 pmDEN - MEL
1 stop22h 25mAmerican Airlines
Deal found 10/30$1,064
This Trip.com deal was found by Cheapflights users on 10/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:45 amSYD - COS
2 stops41h 42mAir New Zealand
Mon 11/2412:10 pmCOS - SYD
2 stops26h 35mAir New Zealand
Deal found 10/28$1,239
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:45 amMEL - DEN
2 stops23h 52mMultiple Airlines
Fri 12/269:45 amDEN - MEL
3 stops37h 50mMultiple Airlines
Deal found 10/30$1,494
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:10 pmSYD - DEN
1 stop18h 00mUnited Airlines
Sat 1/37:48 pmDEN - SYD
1 stop41h 12mUnited Airlines
Deal found 10/30$1,524
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 12/11:00 pmMEL - DEN
1 stop29h 31mUnited Airlines
Fri 12/269:17 pmDEN - MEL
1 stop42h 13mUnited Airlines
Deal found 10/28$1,535
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Wed 12/177:05 amSYD - DEN
2 stops26h 44mAmerican Airlines
Sun 1/45:05 pmDEN - SYD
2 stops22h 45mAmerican Airlines
Deal found 10/30$1,557
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:05 pmSYD - DEN
1 stop26h 17mAmerican Airlines
Wed 1/217:23 pmDEN - SYD
1 stop19h 37mAmerican Airlines
Deal found 10/29$1,562

Cheap flight deals from Australia to Colorado

Keep the following information in mind while searching for Australia to Colorado flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$810
(BestPriceTravel)

One-way from

$545
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,026
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. 17% potential increase in price ($224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Mon 3/23

10:25 am-12:37 pm

1 stop19h 12m

Denver Intl

Tue 4/7

9:58 am-7:20 am

2 stops29h 22m

$817

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 2/3

11:20 am-4:30 pm

1 stop23h 10m

Denver Intl

Tue 3/3

7:05 pm-9:35 am

1 stop20h 30m

$866

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Thu 1/29

11:20 am-5:44 pm

1 stop24h 24m

Denver Intl

Tue 3/3

7:05 pm-9:35 am

1 stop20h 30m

$866

BrisbaneDenver

BNE - DEN

BNEDEN

Brisbane

Thu 3/5

10:45 am-7:55 pm

2 stops50h 10m

Denver Intl

Mon 3/9

6:00 am-7:45 am

2 stops33h 45m

$885

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Fri 1/30

11:20 am-12:37 pm

1 stop19h 17m

Denver Intl

Sun 3/8

8:05 am-8:35 am

1 stop31h 30m

$913

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 2/1

11:20 am-6:07 pm

2 stops24h 47m

Denver Intl

Mon 3/9

7:05 pm-8:35 am

1 stop20h 30m

$915

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Sun 1/25

11:20 am-7:29 pm

1 stop26h 09m

Denver Intl

Sun 3/8

5:30 pm-8:35 am

2 stops46h 05m

$922

SydneyColorado Springs

SYD - COS

SYDCOS

Sydney Kingsford Smith

Mon 11/17

12:10 pm-2:29 pm

2 stops20h 19m

Colorado Springs

Sat 1/17

11:43 am-7:00 am

2 stops49h 17m

$931

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 1/27

2:00 pm-4:37 pm

1 stop20h 37m

Denver Intl

Wed 3/4

7:45 am-7:00 am

1 stop29h 15m

$931

SydneyDenver

SYD - DEN

SYDDEN

Sydney Kingsford Smith

Tue 2/3

12:10 pm-12:23 pm

1 stop18h 13m

Denver Intl

Wed 3/4

7:45 am-7:00 am

1 stop29h 15m

$931

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 57 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 $984). 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 October 30, 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 28% 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 October 30, 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
925 reviews

Crew

8.2

Comfort

7.5

Food

7.0

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
925 reviews
Qantas Airways
7.5
Good
925 reviews

Crew

8.2

Comfort

7.5

Food

7.0

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
United Airlines
7.4
Good
8,996 reviews
Qantas Airways
7.5
Good
925 reviews

Crew

8.2

Comfort

7.5

Food

7.0

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
American Airlines
7.2
Good
11,034 reviews
Qantas Airways
7.5
Good
925 reviews

Crew

8.2

Comfort

7.5

Food

7.0

Entertainment

7.2

Boarding

7.7

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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 $817, Air Canada can have you in Colorado from Australia in 19h 12m. Airlines will cover a distance of 8348 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 Air New Zealand ($568), Alaska Airlines ($711), and Air Canada ($738).

  • 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 $984). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$693Average$968FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$775Average$1,264FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$977Average$1,436FlexibilityNo cancel feeOn-time69%

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