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Cheap flights from Colorado to Sydney from $643

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
27 Jan — 3 Feb1
1 adult

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 22 January 2025.

Round-trip from

$1,342

One-way from

$643
Qantas Airways
  • Qantas Airways
  • 20/4-10/5
  • 2 total stops
  • 39h 03m total
  • Colorado to Sydney
Search Deals
Qantas Airways
  • Qantas Airways
  • 2/2
  • 1 total stop
  • 26h 00m total
  • Colorado to Sydney
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 22 January 2025.

Sun 20/420:19DEN - SYD
1 stop18h 46mQantas Airways
Sat 10/517:35SYD - DEN
1 stop20h 17mQantas Airways
Deal found 21/1$1,342
Fri 23/517:52DEN - SYD
1 stop20h 43mAmerican Airlines
Sun 1/610:25SYD - DEN
1 stop23h 17mAmerican Airlines
Deal found 22/1$1,374
Tue 11/213:00DEN - SYD
1 stop24h 25mMultiple Airlines
Mon 28/416:20SYD - DEN
2 stops23h 39mMultiple Airlines
Deal found 21/1$1,413
Mon 10/219:53DEN - SYD
1 stop19h 07mAlaska Airlines
Fri 14/311:15SYD - DEN
1 stop25h 15mAlaska Airlines
Deal found 20/1$1,414
Fri 7/318:45ASE - SYD
1 stop20h 30mUnited Airlines
Fri 14/311:20SYD - ASE
2 stops20h 50mUnited Airlines
Deal found 20/1$1,630
Fri 6/612:00ASE - SYD
1 stop26h 35mDelta
Tue 17/609:25SYD - ASE
1 stop25h 13mDelta
Deal found 21/1$1,768
Mon 8/911:35DEN - SYD
1 stop27h 45mAir Canada
Sun 21/909:20SYD - DEN
1 stop26h 03mAir Canada
Deal found 20/1$1,856
Tue 11/216:55DEN - SYD
2 stops25h 35mFiji Airways
Sat 26/413:45SYD - DEN
2 stops21h 54mFiji Airways
Deal found 21/1$1,890
Wed 2/706:30DEN - SYD
2 stops34h 30mChina Eastern
Tue 15/711:00SYD - DEN
2 stops47h 13mChina Eastern
Deal found 22/1$1,896
Sun 16/313:25DEN - SYD
2 stops26h 50mUnited Airlines
Mon 31/310:30SYD - DEN
2 stops28h 04mUnited Airlines
Deal found 21/1$2,174
Wed 16/415:38COS - SYD
2 stops23h 17mUnited Airlines
Wed 30/409:30SYD - COS
2 stops26h 28mUnited Airlines
Deal found 21/1$2,174
Sun 13/406:10DEN - SYD
2 stops32h 25mDelta
Sun 27/409:25SYD - DEN
2 stops28h 55mDelta
Deal found 22/1$2,189

Find flights from Colorado to Sydney within your budget

Customise 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 647,157 searches. Data last updated 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 20/4

20:19-07:05

1 stop18h 46m

Sydney Kingsford Smith

Sat 10/5

17:35-21:52

1 stop20h 17m

$1,342

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 23/5

17:52-06:35

1 stop20h 43m

Sydney Kingsford Smith

Sun 1/6

10:25-17:42

1 stop23h 17m

$1,374

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 11/2

13:00-07:25

1 stop24h 25m

Sydney Kingsford Smith

Mon 28/4

16:20-23:59

2 stops23h 39m

$1,413

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 10/2

19:53-09:00

1 stop19h 07m

Sydney Kingsford Smith

Fri 14/3

11:15-19:30

1 stop25h 15m

$1,414

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 7/3

18:45-09:15

1 stop20h 30m

Sydney Kingsford Smith

Fri 14/3

11:20-15:10

2 stops20h 50m

$1,630

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 11/2

16:55-12:30

2 stops25h 35m

Sydney Kingsford Smith

Tue 8/4

13:15-19:51

2 stops22h 36m

$1,890

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 2/7

06:30-09:00

2 stops34h 30m

Sydney Kingsford Smith

Tue 15/7

11:00-18:13

2 stops47h 13m

$1,896

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 9/3

15:40-08:35

2 stops23h 55m

Sydney Kingsford Smith

Thu 10/4

09:20-17:20

1 stop24h 00m

$1,958

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 16/3

20:55-09:15

1 stop19h 20m

Sydney Kingsford Smith

Mon 31/3

10:30-21:34

2 stops28h 04m

$2,174

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 16/4

15:38-06:55

2 stops23h 17m

Sydney Kingsford Smith

Wed 30/4

09:30-19:58

2 stops26h 28m

$2,174

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 26 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 return 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, May is the cheapest month in which you can book a flight from Colorado to Sydney (average of $129). Flying from Colorado to Sydney in October is currently the most expensive (average of $171). 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 22 January 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 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

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 22 January 2025.
Read through reviews of airlines operating flights from Colorado to Sydney, such as United Airlines, Qantas Airways and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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.

Singapore Airlines
8.1
Very Good
1,328 reviews
Air Tahiti Nui
8.8
Very Good
62 reviews
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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
Check prices

Comfort

8.1

Crew

9.1

Overall

8.8

Food

7.8

Entertainment

7.3

Boarding

8.7

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 7.5 km from the city centre, 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?

    To fly one-way, consider booking your trip with Qantas Airways, which is currently one of the cheapest options available, starting at $643. American Airlines flights start at $664 while deals on Alaska Airlines start at $678 one-way.

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

    The most popular route from Colorado to Sydney is Denver Intl - Sydney Kingsford Smith. You may also consider Aspen Pitkin County - Sydney Kingsford Smith or Colorado Springs - Sydney Kingsford Smith.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Colorado to Sydney (average of $129). Flying from Colorado to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Colorado?

Book flights to Colorado if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Randwick
Coogee
Manly
Cronulla
Bondi Beach
Terrigal
Lithgow
Leura
Swansea

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Colorado to Sydney

Discover the top 3 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 647,157 searches. Data last updated 22 January 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$1,294Average$1,489FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qantas AirwaysCheapest$1,408Average$2,141FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$2,006Average$2,606FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Colorado to Sydney?

Cheapflights helps you search for flights from Colorado to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Colorado to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Colorado.

Can Cheapflights find flights from Colorado to Sydney with no change fees?

Yes! Cheapflights helps users easily find flights from Colorado to Sydney with no change fees.

Can Cheapflights notify me if prices for flights from Colorado to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Colorado today and book when prices fit your budget.

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