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Cheap flights from Colorado to Sydney from $717

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Colorado to Sydney

Enter your travel dates to find the best prices.

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 4 January 2026.

Fri 23/106:05DEN - SYD
2 stops36h 30mMultiple Airlines
Mon 26/114:00SYD - DEN
2 stops27h 31mMultiple Airlines
Deal found 2/1$1,281
Tue 10/309:00DEN - SYD
2 stops44h 05mMultiple Airlines
Tue 24/314:00SYD - DEN
2 stops27h 30mMultiple Airlines
Deal found 2/1$1,308
Mon 9/309:00DEN - SYD
2 stops34h 35mMultiple Airlines
Mon 16/314:00SYD - DEN
2 stops27h 30mMultiple Airlines
Deal found 3/1$1,339
Wed 18/309:00DEN - SYD
2 stops34h 35mMultiple Airlines
Tue 31/314:15SYD - DEN
2 stops27h 15mMultiple Airlines
Deal found 2/1$1,432
Sat 7/212:00DEN - SYD
1 stop25h 25mMultiple Airlines
Sat 14/211:20SYD - DEN
1 stop24h 40mMultiple Airlines
Deal found 3/1$1,457
Thu 5/211:00DEN - SYD
1 stop26h 25mMultiple Airlines
Thu 12/211:20SYD - DEN
1 stop21h 36mMultiple Airlines
Deal found 1/1$1,487
Thu 5/311:56DEN - SYD
1 stop25h 29mMultiple Airlines
Wed 11/311:20SYD - DEN
1 stop30h 10mMultiple Airlines
Deal found 3/1$1,557
Tue 10/215:17COS - SYD
2 stops29h 33mMultiple Airlines
Tue 17/206:20SYD - COS
2 stops22h 49mMultiple Airlines
Deal found 2/1$1,874
Thu 13/812:00ASE - SYD
1 stop26h 35mDelta
Sat 22/809:15SYD - ASE
1 stop20h 38mDelta
Deal found 4/1$1,901
Thu 13/815:30ASE - SYD
2 stops23h 30mUnited Airlines
Sat 22/809:30SYD - ASE
1 stop20h 45mUnited Airlines
Deal found 4/1$2,044
Mon 9/215:17COS - SYD
2 stops29h 33mQantas Airways
Mon 16/219:15SYD - COS
2 stops38h 45mQantas Airways
Deal found 2/1$2,169
Mon 9/212:09COS - SYD
1 stop24h 51mUnited Airlines
Mon 16/211:50SYD - COS
1 stop27h 54mUnited Airlines
Deal found 2/1$2,187

Find flight deals from Colorado to Sydney

Keep the following information in mind while searching for Colorado to Sydney flight deals. Data was last updated 4 January 2026.

Round-trip from

$1,281

One-way from

$717

Popular in

December

Cheapest in

April

Average price

$1,835
23/1-26/1
  • 23/1-26/1
  • 4 total stops
  • 64h 01m total
  • Colorado to Sydney
Search Deals
7/2
  • 7/2
  • 1 total stop
  • 25h 25m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($652 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($108 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
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 4 January 2026.
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

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 10/2

15:17-14:50

2 stops29h 33m

Sydney Kingsford Smith

Tue 17/2

06:20-11:09

2 stops22h 49m

$1,874

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/4

18:03-18:50

2 stops32h 47m

Sydney Kingsford Smith

Thu 23/4

20:45-12:06

2 stops31h 21m

$1,966

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/4

18:03-18:50

2 stops32h 47m

Sydney Kingsford Smith

Sat 2/5

20:45-12:06

2 stops31h 21m

$1,966

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 26/2

19:52-19:45

2 stops29h 53m

Sydney Kingsford Smith

Sat 7/3

21:40-10:38

2 stops30h 58m

$1,972

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/4

18:03-18:50

2 stops32h 47m

Sydney Kingsford Smith

Fri 1/5

20:45-10:50

2 stops30h 05m

$1,987

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 11/4

07:25-18:50

2 stops67h 25m

Sydney Kingsford Smith

Fri 1/5

20:45-10:50

2 stops30h 05m

$2,008

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 14/6

17:52-06:55

1 stop21h 03m

Sydney Kingsford Smith

Sun 21/6

09:30-14:21

1 stop20h 51m

$2,038

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 14/6

19:15-06:35

1 stop19h 20m

Sydney Kingsford Smith

Wed 24/6

09:15-11:30

1 stop18h 15m

$2,038

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 17/6

17:50-07:00

1 stop21h 10m

Sydney Kingsford Smith

Wed 24/6

09:30-17:50

1 stop24h 20m

$2,038

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 14/6

19:15-06:35

1 stop19h 20m

Sydney Kingsford Smith

Mon 22/6

09:15-11:30

1 stop18h 15m

$2,038

Flights are sorted by cheapest return flights first.

Deals found on 2/1

Showing 1-10 of 29 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.

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, June is the cheapest month in which you can book a flight from Colorado to Sydney (average of $999). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,283). 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.

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.

  • How long is the flight from Colorado to Sydney?

    A quick flight from Colorado to Sydney can take about 21h 10m. Air Canada provides one of the quickest options available for as low as $2,038. The distance between Colorado and Sydney is about 13435 km. This flight may include one or multiple stops.

  • 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 Colorado Springs - Sydney Kingsford Smith or Aspen Pitkin County - 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, June is the cheapest month in which you can book a flight from Colorado to Sydney (average of $999). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,283). 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 Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Colorado to Sydney

Discover the top airline 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 4 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$987Average$1,945FlexibilityNo cancel feeOn-time74%
Search Qantas Airways 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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