HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$523+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Sydney with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$936
(Trip.com)

One-way from

$523
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$892
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
Search Deals
From Colorado to Sydney Kingsford Smith
Search Deals
One-way flight from Colorado to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 March 28, 2025.

This Trip.com deal was found by Cheapflights users on 3/26. 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 5/15:30 amDEN - SYD
2 stops38h 45mMultiple Airlines
Thu 5/151:15 pmSYD - DEN
2 stops26h 02mMultiple Airlines
Deal found 3/26$936
This Air Canada deal was found by Cheapflights users on 3/26. 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.
Wed 5/217:15 pmDEN - SYD
1 stop20h 05mAir Canada
Mon 6/29:20 amSYD - DEN
2 stops22h 44mAir Canada
Deal found 3/26$1,036
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/154:59 pmDEN - SYD
2 stops26h 16mQantas Airways
Mon 12/87:30 amSYD - DEN
2 stops26h 16mQantas Airways
Deal found 3/28$1,140
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Sat 8/26:37 pmDEN - SYD
2 stops25h 08mFiji Airways
Sat 8/231:45 pmSYD - DEN
2 stops22h 12mFiji Airways
Deal found 3/27$1,175
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 10/2811:30 amDEN - SYD
2 stops26h 55mAlaska Airlines
Mon 11/105:25 pmSYD - DEN
2 stops35h 07mAlaska Airlines
Deal found 3/27$1,299
This American Airlines deal was found by Cheapflights users on 3/27. 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 5/184:30 pmDEN - SYD
1 stop23h 00mAmerican Airlines
Sun 6/15:45 pmSYD - DEN
1 stop38h 15mAmerican Airlines
Deal found 3/27$1,311
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/257:45 pmDEN - SYD
1 stop19h 10mUnited Airlines
Sun 7/69:30 amSYD - DEN
1 stop38h 54mUnited Airlines
Deal found 3/26$1,365
This United Airlines deal was found by Cheapflights users on 3/28. 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 6/63:30 pmASE - SYD
2 stops23h 30mUnited Airlines
Tue 6/1710:20 amSYD - ASE
2 stops25h 52mUnited Airlines
Deal found 3/28$1,411
This Delta deal was found by Cheapflights users on 3/28. 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.
Fri 6/612:00 pmASE - SYD
1 stop26h 35mDelta
Tue 6/179:25 amSYD - ASE
1 stop27h 24mDelta
Deal found 3/28$1,488
This Gurufare deal was found by Cheapflights users on 3/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:25 pmDEN - SYD
1 stop19h 30mAir New Zealand
Sun 8/2411:50 amSYD - DEN
2 stops22h 20mAir New Zealand
Deal found 3/27$1,507
This United deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:24 pmCOS - SYD
2 stops21h 31mUnited Airlines
Wed 4/309:30 amSYD - COS
2 stops28h 06mUnited Airlines
Deal found 3/27$1,661
This Gurufare deal was found by Cheapflights users on 3/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/164:39 pmCOS - SYD
1 stop22h 16mQantas Airways
Wed 4/3012:00 pmSYD - COS
2 stops24h 10mQantas Airways
Deal found 3/27$2,309

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 March 28, 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

Thu 5/1

5:30 am-12:15 pm

2 stops38h 45m

Sydney Kingsford Smith

Thu 5/15

1:15 pm-11:17 pm

2 stops26h 02m

$936

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 5/21

7:15 pm-7:20 am

1 stop20h 05m

Sydney Kingsford Smith

Mon 6/2

9:20 am-4:04 pm

2 stops22h 44m

$1,036

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 8/2

6:37 pm-11:45 am

2 stops25h 08m

Sydney Kingsford Smith

Sat 8/23

1:45 pm-7:57 pm

2 stops22h 12m

$1,175

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/27

4:30 pm-7:30 am

1 stop23h 00m

Sydney Kingsford Smith

Tue 6/24

9:10 am-11:10 am

1 stop18h 00m

$1,262

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 8/12

12:49 pm-7:30 am

2 stops26h 41m

Sydney Kingsford Smith

Sun 8/17

5:45 pm-11:53 am

2 stops34h 08m

$1,299

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 5/18

4:30 pm-7:30 am

1 stop23h 00m

Sydney Kingsford Smith

Sun 6/1

5:45 pm-4:00 pm

1 stop38h 15m

$1,311

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 7/30

3:40 pm-6:55 am

2 stops23h 15m

Sydney Kingsford Smith

Wed 8/20

9:30 am-12:03 pm

1 stop18h 33m

$1,361

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 6/6

3:30 pm-7:00 am

2 stops23h 30m

Sydney Kingsford Smith

Tue 6/17

10:20 am-8:12 pm

2 stops25h 52m

$1,411

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 6/6

12:00 pm-6:35 am

1 stop26h 35m

Sydney Kingsford Smith

Tue 6/17

9:25 am-8:49 pm

1 stop27h 24m

$1,488

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 8/1

7:25 pm-6:55 am

1 stop19h 30m

Sydney Kingsford Smith

Sun 8/24

11:50 am-6:10 pm

2 stops22h 20m

$1,507

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 24 results
1
2
3

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, March is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,044). Flying from Colorado to Sydney 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 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 March 28, 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.

Rainfall in Sydney by month

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

In terms of precipitation, rainfall in Sydney 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 Sydney when rainfall is around 2.0 in.

Temperature in Sydney by month

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

If weather is an important factor for your trip to Sydney, 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 Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated March 28, 2025.
See what other customers who have flown with Air Tahiti Nui, ANA and Alaska Airlines from Colorado to Sydney have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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.
ANA
8.3
Very good
829 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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.
Alaska Airlines
8.0
Very good
9,798 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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.
Fiji Airways
8.0
Very good
182 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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.
Delta
8.0
Very good
7,897 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Boarding

8.7

Entertainment

7.2

Crew

9.1

Food

7.8

Comfort

8.0

Overall

8.7

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.

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.

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

    $601 is the cheapest one-way deal found within the past few days, from Fiji Airways. You may also be able to find cheap deals on Air Canada and Qantas Airways, with prices starting from $693 and $719, respectively.

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

    Most travelers choose Denver Intl - Sydney Kingsford Smith, Aspen Pitkin County - Sydney Kingsford Smith or Colorado Springs - Sydney Kingsford Smith when deciding on the best route 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, March is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,044). Flying from Colorado to Sydney 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

Traveling to a place near Colorado?

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

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 Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
Dallas/Fort Worth to Sydney flights
John F Kennedy Intl to Sydney flights
Newark to Sydney flights
San Francisco to Sydney flights
LaGuardia to Sydney flights
Dulles Intl to Sydney flights
Reagan-National to Sydney flights
O'Hare Intl to Sydney flights
Ontario to Sydney flights
Baltimore to Sydney flights
Seattle to Sydney flights
Santa Ana to Sydney flights
Hobby to Sydney flights
Honolulu to Sydney flights
Denver to Sydney flights
Miami to Sydney flights
Atlanta to Sydney flights
Boston to Sydney flights
George Bush Intcntl to Sydney flights
Midway to Sydney flights
Minneapolis to Sydney flights
Detroit to Sydney flights
Sky Harbor Intl to Sydney flights
Charlotte to Sydney flights
Orlando to Sydney flights
Fort Lauderdale to Sydney flights
Raleigh to Sydney flights
Philadelphia to Sydney flights
Burbank to Sydney flights
San Jose to Sydney flights
Salt Lake City to Sydney flights
Austin to Sydney flights
San Diego to Sydney flights
Nashville to Sydney flights
Tampa to Sydney flights
Kansas City to Sydney flights
Las Vegas to Sydney flights
Cleveland to Sydney flights
Indianapolis to Sydney flights
Columbus to Sydney flights
Pittsburgh to Sydney flights
Oakland to Sydney flights
Portland to Sydney flights
St. Louis to Sydney flights
West Palm Beach to Sydney flights
Sacramento to Sydney flights
Love Field to Sydney flights
Cincinnati to Sydney flights
Des Moines to Sydney flights

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$768Average$856FlexibilityNo cancel feeOn-time75%
Qantas AirwaysCheapest$811Average$971FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$827Average$868FlexibilityNo cancel feeOn-time71%
Air New ZealandCheapest$834Average$1,593FlexibilityNo cancel feeOn-time78%
DeltaCheapest$848Average$1,319FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$949Average$1,245FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,079Average$1,485FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.