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$396+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$826
(Gurufare)

One-way from

$397
(BestPriceTravel)

Popular in

December

Cheapest in

April

Average price

$991
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
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From Colorado to Sydney Kingsford Smith
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One-way flight from Colorado to Sydney Kingsford Smith
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Highest demand for flights based on searches. 10% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 22, 2025.

This Gurufare deal was found by Cheapflights users on 2/22. 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.
Tue 3/181:22 pmDEN - SYD
1 stop25h 03mQantas Airways
Thu 3/2711:15 amSYD - DEN
1 stop18h 36mQantas Airways
Deal found 2/22$826
This American Airlines deal was found by Cheapflights users on 2/22. 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 3/28:00 amDEN - SYD
1 stop28h 35mAmerican Airlines
Sun 3/911:50 amSYD - DEN
1 stop24h 49mAmerican Airlines
Deal found 2/22$833
This Alaska Airlines deal was found by Cheapflights users on 2/22. 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.
Sun 9/712:43 pmDEN - SYD
1 stop26h 22mAlaska Airlines
Mon 9/229:10 amSYD - DEN
1 stop26h 48mAlaska Airlines
Deal found 2/22$853
This United deal was found by Cheapflights users on 2/22. 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.
Fri 6/62:35 pmASE - SYD
2 stops24h 25mUnited Airlines
Tue 6/1710:20 amSYD - ASE
1 stop25h 26mUnited Airlines
Deal found 2/22$879
This Fareboom deal was found by Cheapflights users on 2/22. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/264:00 pmDEN - SYD
2 stops22h 45mAir New Zealand
Fri 2/2811:45 amSYD - DEN
2 stops25h 53mAir New Zealand
Deal found 2/22$886
This Delta deal was found by Cheapflights users on 2/21. 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.
Mon 6/167:15 pmDEN - SYD
1 stop19h 20mDelta
Tue 7/89:25 amSYD - DEN
1 stop24h 48mDelta
Deal found 2/21$932
This Delta deal was found by Cheapflights users on 2/22. 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 4/168:05 amCOS - SYD
2 stops30h 30mDelta
Wed 4/309:25 amSYD - COS
2 stops25h 57mDelta
Deal found 2/22$937
This SmartFares deal was found by Cheapflights users on 2/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:28 pmDEN - SYD
1 stop18h 37mMultiple Airlines
Thu 10/166:00 amSYD - DEN
2 stops28h 12mMultiple Airlines
Deal found 2/22$962
This Air Canada deal was found by Cheapflights users on 2/22. 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.
Sun 7/67:05 pmDEN - SYD
1 stop20h 15mAir Canada
Sat 7/199:20 amSYD - DEN
2 stops24h 39mAir Canada
Deal found 2/22$992
This KAYAK deal was found by Cheapflights users on 2/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/196:30 amDEN - SYD
2 stops34h 30mChina Eastern
Tue 7/2911:00 amSYD - DEN
2 stops47h 13mChina Eastern
Deal found 2/22$1,184
This United deal was found by Cheapflights users on 2/22. 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.
Sat 12/277:00 pmDEN - SYD
1 stop41h 20mUnited Airlines
Mon 1/512:10 pmSYD - DEN
1 stop27h 09mUnited Airlines
Deal found 2/22$1,366
This Gurufare deal was found by Cheapflights users on 2/22. 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 4/3011:15 amSYD - COS
2 stops24h 55mQantas Airways
Deal found 2/22$2,029

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 February 22, 2025.

Fly from

Colorado

Fly to

Sydney

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 3/18

1:22 pm-7:25 am

1 stop25h 03m

Sydney Kingsford Smith

Thu 3/27

11:15 am-12:51 pm

1 stop18h 36m

$826

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 7/6

11:53 am-6:35 am

1 stop26h 42m

Sydney Kingsford Smith

Sun 7/13

5:35 pm-9:25 pm

1 stop19h 50m

$833

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 5/16

8:20 pm-7:05 am

1 stop18h 45m

Sydney Kingsford Smith

Tue 6/10

9:10 am-5:48 pm

1 stop24h 38m

$856

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 6/6

2:35 pm-7:00 am

2 stops24h 25m

Sydney Kingsford Smith

Tue 6/17

10:20 am-7:46 pm

1 stop25h 26m

$879

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 8/2

5:20 pm-8:45 am

2 stops23h 25m

Sydney Kingsford Smith

Fri 8/22

11:50 am-7:21 pm

2 stops23h 31m

$890

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 6/16

7:15 pm-6:35 am

1 stop19h 20m

Sydney Kingsford Smith

Tue 7/8

9:25 am-6:13 pm

1 stop24h 48m

$932

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 4/16

8:05 am-6:35 am

2 stops30h 30m

Sydney Kingsford Smith

Wed 4/30

9:25 am-7:22 pm

2 stops25h 57m

$937

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 7/19

6:15 pm-7:05 am

1 stop20h 50m

Sydney Kingsford Smith

Tue 7/29

4:30 pm-5:45 pm

2 stops41h 15m

$973

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 7/6

7:05 pm-7:20 am

1 stop20h 15m

Sydney Kingsford Smith

Sat 7/19

9:20 am-5:59 pm

2 stops24h 39m

$992

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 7/19

6:30 am-9:00 am

2 stops34h 30m

Sydney Kingsford Smith

Tue 7/29

11:00 am-6:13 pm

2 stops47h 13m

$1,184

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 21 results
1
2
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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.

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 February 22, 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 February 22, 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

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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
8.4
Very good
836 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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
9,702 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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
8,203 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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 New Zealand
7.9
Good
460 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Comfort

8.0

Overall

8.7

Food

7.8

Crew

9.1

Entertainment

7.2

Boarding

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?

    $397 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 Air Canada, with prices starting from $411 and $749, 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

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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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$812Average$1,044FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$825Average$870FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$834Average$878FlexibilityNo cancel feeOn-time75%
DeltaCheapest$848Average$1,330FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$916Average$1,411FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$962Average$1,270FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,217Average$1,441FlexibilityNo cancel feeOn-time78%
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