Sydney

$456+ Cheap flights from Colorado to Sydney (SYD)

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Aug 25 — Sep 11
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Cheap flight deals from Colorado to Sydney

Keep the following information in mind while searching for Colorado to Sydney flight deals. Data was last updated August 20, 2025.

Round-trip from

$1,006
(Trip.com)

One-way from

$456
(Trip.com)

Popular in

December

Cheapest in

April

Average price

$1,110
From Colorado to Sydney Kingsford Smith
One-way flight from Colorado to Sydney Kingsford Smith
Highest demand for flights based on searches. 15% potential increase in price ($195 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Colorado to Sydney

Cheapest flights from Colorado to Sydney
Explore the most affordable flight options available from Colorado to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Trip.com deal was found by Cheapflights users on 8/19. 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 11/1111:45 amDEN - SYD
2 stops30h 45mMultiple Airlines
Mon 11/242:00 pmSYD - DEN
2 stops25h 50mMultiple Airlines
Deal found 8/19$1,006
This Trip.com deal was found by Cheapflights users on 8/18. 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 10/301:23 pmDEN - SYD
2 stops25h 02mMultiple Airlines
Fri 11/711:15 amSYD - DEN
2 stops30h 44mMultiple Airlines
Deal found 8/18$1,037
This CrystalTravel deal was found by Cheapflights users on 8/18. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:46 pmDEN - SYD
2 stops23h 59mAir New Zealand
Mon 11/39:55 amSYD - DEN
2 stops24h 31mAir New Zealand
Deal found 8/18$1,097
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/233:02 pmDEN - SYD
2 stops31h 38mMultiple Airlines
Tue 10/146:45 pmSYD - DEN
1 stop32h 34mMultiple Airlines
Deal found 8/19$1,111
This oojo deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/101:45 pmDEN - SYD
2 stops25h 00mAir New Zealand
Sun 11/231:55 pmSYD - DEN
2 stops23h 45mAir New Zealand
Deal found 8/19$1,114
This oojo deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmDEN - SYD
2 stops22h 40mAir New Zealand
Wed 11/261:55 pmSYD - DEN
2 stops26h 00mAir New Zealand
Deal found 8/19$1,115
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:46 pmDEN - SYD
2 stops23h 59mAir New Zealand
Sun 11/21:55 pmSYD - DEN
2 stops26h 00mAir New Zealand
Deal found 8/18$1,117
This Trip.com deal was found by Cheapflights users on 8/20. 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 12/89:30 amDEN - SYD
2 stops33h 00mMultiple Airlines
Sun 12/142:50 pmSYD - DEN
2 stops23h 40mMultiple Airlines
Deal found 8/20$1,120
This oojo deal was found by Cheapflights users on 8/18. 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 11/18:37 pmDEN - SYD
2 stops43h 08mAir New Zealand
Mon 11/101:55 pmSYD - DEN
2 stops24h 25mAir New Zealand
Deal found 8/18$1,125
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/163:02 pmDEN - SYD
2 stops31h 38mMultiple Airlines
Tue 9/305:45 pmSYD - DEN
1 stop39h 28mMultiple Airlines
Deal found 8/19$1,134
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/233:02 pmDEN - SYD
2 stops31h 38mMultiple Airlines
Wed 10/156:45 pmSYD - DEN
1 stop32h 33mMultiple Airlines
Deal found 8/19$1,135
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/233:02 pmDEN - SYD
2 stops31h 38mMultiple Airlines
Mon 10/136:45 pmSYD - DEN
1 stop23h 07mMultiple Airlines
Deal found 8/19$1,139

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Sydney 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 August 20, 2025.
Use the filters below to find and compare flights from Colorado to Sydney that are best for you.

Fly from

Colorado

Fly to

Sydney

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 11/11

11:45 am-12:30 pm

2 stops30h 45m

Sydney Kingsford Smith

Mon 11/24

2:00 pm-9:50 pm

2 stops25h 50m

$1,006

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 10/30

1:23 pm-7:25 am

2 stops25h 02m

Sydney Kingsford Smith

Fri 11/7

11:15 am-11:59 pm

2 stops30h 44m

$1,037

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 11/11

4:05 pm-10:30 am

2 stops24h 25m

Sydney Kingsford Smith

Mon 11/24

1:55 pm-5:58 pm

2 stops22h 03m

$1,097

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 10/22

3:46 pm-8:45 am

2 stops23h 59m

Sydney Kingsford Smith

Mon 11/3

9:55 am-4:26 pm

2 stops24h 31m

$1,097

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 11/17

4:05 pm-8:45 am

2 stops22h 40m

Sydney Kingsford Smith

Mon 11/24

1:55 pm-5:58 pm

2 stops22h 03m

$1,097

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 11/10

1:45 pm-8:45 am

2 stops25h 00m

Sydney Kingsford Smith

Sun 11/23

1:55 pm-7:40 pm

2 stops23h 45m

$1,114

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 11/12

4:05 pm-8:45 am

2 stops22h 40m

Sydney Kingsford Smith

Wed 11/26

1:55 pm-5:58 pm

2 stops22h 03m

$1,115

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 10/22

3:46 pm-8:45 am

2 stops23h 59m

Sydney Kingsford Smith

Sun 11/2

1:55 pm-10:55 pm

2 stops26h 00m

$1,117

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 11/13

12:00 pm-8:30 am

1 stop26h 30m

Sydney Kingsford Smith

Mon 11/17

10:40 am-6:44 pm

1 stop26h 04m

$1,226

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Thu 10/2

12:54 pm-7:00 am

2 stops26h 06m

Sydney Kingsford Smith

Thu 10/9

11:20 am-2:44 pm

2 stops20h 24m

$1,422

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 39 results
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Best time to book a flight from Colorado to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Currently, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,030). Flying from Colorado to Sydney in December is currently the most expensive (average of $1,620). 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 SYD?

Find hourly flight availability from Colorado to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Colorado to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Sydney from Colorado?

    Located just 4.6 mi from the city center, Sydney Kingsford Smith (SYD) is the airport most travelers will use when flying to Sydney from Colorado.

  • How long is the flight from Colorado to Sydney?

    There are many flights that can get you from Colorado to Sydney in 24h 25m. Fly via Air New Zealand, Delta, or United Airlines to get the fastest option. There are 8348 mi between Colorado and Sydney. This flight may include one or multiple stops.

  • What are the most popular routes from Colorado to Sydney?

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,030). Flying from Colorado to Sydney in December is currently the most expensive (average of $1,620). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Colorado to Sydney

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

Top 7 airlines flying from Colorado to Sydney

Discover the top 7 airlines that operate flights from Colorado to Sydney. 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$745Average$856FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$802Average$906FlexibilityNo cancel feeOn-time74%
DeltaCheapest$830Average$1,265FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$832Average$867FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$834Average$1,373FlexibilityNo cancel feeOn-time78%
Air CanadaCheapest$1,009Average$1,223FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,260Average$1,472FlexibilityNo cancel feeOn-time69%

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