HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sydney

$402+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$839
(Cheapflightsfares)

One-way from

$402
(Justfly.com)
From Colorado to Sydney Kingsford Smith
Search Deals
One-way flight from Colorado to Sydney Kingsford Smith
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 January 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Sun 3/164:49 pmDEN - SYD
1 stop20h 46mQantas Airways
Wed 4/210:10 amSYD - DEN
1 stop26h 20mQantas Airways
Deal found 1/21$839
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/202:39 pmDEN - SYD
1 stop21h 56mAmerican Airlines
Thu 3/65:25 pmSYD - DEN
1 stop19h 55mAmerican Airlines
Deal found 1/19$855
This Flighttix deal was found by Cheapflights users on 1/19. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/201:00 pmDEN - SYD
1 stop24h 25mMultiple Airlines
Thu 3/65:25 pmSYD - DEN
2 stops22h 34mMultiple Airlines
Deal found 1/19$862
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/67:53 pmDEN - SYD
1 stop19h 07mAlaska Airlines
Fri 2/2111:15 amSYD - DEN
1 stop19h 13mAlaska Airlines
Deal found 1/20$884
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:45 pmASE - SYD
1 stop20h 30mUnited Airlines
Fri 3/1411:20 amSYD - ASE
2 stops20h 50mUnited Airlines
Deal found 1/20$1,019
This Delta deal was found by Cheapflights users on 1/21. 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 stop25h 13mDelta
Deal found 1/21$1,105
This Gurufare deal was found by Cheapflights users on 1/20. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:30 amDEN - SYD
2 stops38h 05mChina Eastern
Wed 7/238:30 pmSYD - DEN
2 stops37h 43mChina Eastern
Deal found 1/20$1,144
This Air Canada deal was found by Cheapflights users on 1/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:05 pmDEN - SYD
1 stop20h 30mAir Canada
Mon 12/154:00 pmSYD - DEN
1 stop18h 33mAir Canada
Deal found 1/20$1,149
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Tue 2/114:55 pmDEN - SYD
2 stops25h 35mFiji Airways
Sat 4/261:45 pmSYD - DEN
2 stops21h 54mFiji Airways
Deal found 1/21$1,181
This United deal was found by Cheapflights users on 1/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/167:45 pmDEN - SYD
1 stop20h 20mUnited Airlines
Mon 3/3110:30 amSYD - DEN
1 stop26h 10mUnited Airlines
Deal found 1/20$1,355
This United deal was found by Cheapflights users on 1/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:38 pmCOS - SYD
2 stops23h 22mUnited Airlines
Wed 4/309:30 amSYD - COS
2 stops24h 23mUnited Airlines
Deal found 1/20$1,359
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1612:15 pmDEN - SYD
2 stops24h 50mDelta
Mon 3/3110:25 amSYD - DEN
2 stops21h 55mDelta
Deal found 1/19$1,368

Find flights from Colorado to Sydney within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 3/16

4:49 pm-6:35 am

1 stop20h 46m

Sydney Kingsford Smith

Wed 4/2

10:10 am-7:30 pm

1 stop26h 20m

$839

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 2/20

2:39 pm-6:35 am

1 stop21h 56m

Sydney Kingsford Smith

Thu 3/6

5:25 pm-7:20 pm

1 stop19h 55m

$855

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 2/20

1:00 pm-7:25 am

1 stop24h 25m

Sydney Kingsford Smith

Thu 3/6

5:25 pm-9:59 pm

2 stops22h 34m

$862

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 2/6

1:00 pm-9:00 am

1 stop26h 00m

Sydney Kingsford Smith

Mon 2/24

11:15 am-12:28 pm

1 stop19h 13m

$884

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 3/7

6:45 pm-9:15 am

1 stop20h 30m

Sydney Kingsford Smith

Fri 3/14

11:20 am-3:10 pm

2 stops20h 50m

$1,019

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-6:38 pm

1 stop25h 13m

$1,105

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/11

4:55 pm-12:30 pm

2 stops25h 35m

Sydney Kingsford Smith

Tue 4/8

1:15 pm-7:51 pm

2 stops22h 36m

$1,181

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 3/16

6:00 pm-8:35 am

1 stop21h 35m

Sydney Kingsford Smith

Mon 3/31

10:20 am-9:53 pm

1 stop28h 33m

$1,318

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 3/16

7:45 pm-9:05 am

1 stop20h 20m

Sydney Kingsford Smith

Mon 3/31

10:30 am-7:40 pm

1 stop26h 10m

$1,355

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 4/16

3:38 pm-7:00 am

2 stops23h 22m

Sydney Kingsford Smith

Wed 4/30

9:30 am-5:53 pm

2 stops24h 23m

$1,359

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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.

Travel insights for flights from Colorado to Sydney

Get recent, data-driven insights about flights from Colorado to Sydney including ideal travel times, pricing trends, and more.

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 $1,051). 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 January 21, 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 January 21, 2025.
See what other customers who have flown with Qantas Airways, American Airlines and Air Tahiti Nui 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
8.8
Very good
62 reviews

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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
8.1
Very good
188 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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
9,706 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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
8,521 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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 New Zealand
7.9
Good
483 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Food

7.8

Comfort

8.1

Crew

9.1

Boarding

8.7

Entertainment

7.3

Overall

8.8

Reviews

1 / 2

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?

    $402 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on American Airlines and Alaska Airlines, with prices starting from $415 and $424, 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, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,051). 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
San Francisco to Sydney flights
John F Kennedy Intl to Sydney flights
Newark to Sydney flights
Dulles Intl to Sydney flights
Seattle to Sydney flights
Reagan-National to Sydney flights
Ontario to Sydney flights
LaGuardia to Sydney flights
O'Hare Intl to Sydney flights
Hobby to Sydney flights
Honolulu to Sydney flights
Santa Ana to Sydney flights
Baltimore to Sydney flights
George Bush Intcntl to Sydney flights
Atlanta to Sydney flights
Boston to Sydney flights
Denver to Sydney flights
Detroit to Sydney flights
Minneapolis to Sydney flights
Philadelphia to Sydney flights
Midway to Sydney flights
Miami to Sydney flights
Portland to Sydney flights
Sky Harbor Intl to Sydney flights
Raleigh to Sydney flights
Love Field to Sydney flights
Charlotte to Sydney flights
Orlando to Sydney flights
Salt Lake City to Sydney flights
Austin to Sydney flights
Tampa to Sydney flights
San Diego to Sydney flights
Fort Lauderdale to Sydney flights
San Jose to Sydney flights
Cleveland to Sydney flights
Indianapolis to Sydney flights
Las Vegas to Sydney flights
Nashville to Sydney flights
Columbus to Sydney flights
Pittsburgh to Sydney flights
Cincinnati to Sydney flights
Long Beach to Sydney flights
Seattle to Coolangatta flights
Kansas City to Sydney flights
Albuquerque to Sydney flights
Omaha to Sydney flights
Hartford to Sydney flights
St. Louis 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$812Average$1,147FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$824Average$879FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$834Average$878FlexibilityNo cancel feeOn-time75%
DeltaCheapest$848Average$1,308FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$873Average$1,317FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$910Average$1,211FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,220Average$1,367FlexibilityNo cancel feeOn-time78%
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.