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Cheap flights from Colorado to Sydney from $616

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
23 Mar — 30 Mar1
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 21 February 2026.

Sat 28/211:50
DEN
-
SYD
2 stops30h 45m
Multiple Airlines
Sat 14/314:00
SYD
-
DEN
2 stops27h 30m
Multiple Airlines
Deal found 17/2$1,255
Mon 6/409:20
DEN
-
SYD
2 stops34h 30m
Multiple Airlines
Mon 13/413:15
SYD
-
DEN
2 stops27h 16m
Multiple Airlines
Deal found 20/2$1,520
Tue 7/422:30
DEN
-
SYD
1 stop41h 00m
Multiple Airlines
Tue 12/506:20
SYD
-
DEN
2 stops29h 29m
Multiple Airlines
Deal found 17/2$1,546
Tue 7/422:30
DEN
-
SYD
2 stops45h 20m
Multiple Airlines
Mon 11/517:50
SYD
-
DEN
1 stop32h 57m
Multiple Airlines
Deal found 17/2$1,548
Mon 27/406:00
DEN
-
SYD
2 stops38h 05m
Multiple Airlines
Fri 8/517:50
SYD
-
DEN
1 stop38h 02m
Multiple Airlines
Deal found 19/2$1,551
Tue 7/422:30
DEN
-
SYD
1 stop41h 00m
Multiple Airlines
Wed 6/511:00
SYD
-
DEN
2 stops24h 49m
Multiple Airlines
Deal found 17/2$1,555
Tue 7/422:30
DEN
-
SYD
2 stops45h 20m
Multiple Airlines
Fri 8/517:50
SYD
-
DEN
1 stop38h 02m
Multiple Airlines
Deal found 17/2$1,557
Wed 8/409:10
DEN
-
SYD
1 stop30h 20m
Multiple Airlines
Tue 12/506:20
SYD
-
DEN
2 stops29h 29m
Multiple Airlines
Deal found 17/2$1,565
Wed 8/422:30
DEN
-
SYD
2 stops45h 20m
Multiple Airlines
Mon 11/517:50
SYD
-
DEN
1 stop32h 57m
Multiple Airlines
Deal found 17/2$1,568
Wed 25/319:05
DEN
-
SYD
1 stop20h 30m
Air Canada
Tue 7/409:20
SYD
-
DEN
1 stop19h 15m
Air Canada
Deal found 19/2$1,570
Fri 29/512:00
ASE
-
SYD
1 stop26h 50m
Delta
Mon 15/609:15
SYD
-
ASE
1 stop26h 48m
Delta
Deal found 20/2$1,587
Sat 28/218:39
ASE
-
SYD
1 stop41h 41m
United Airlines
Wed 4/311:50
SYD
-
ASE
1 stop26h 52m
United Airlines
Deal found 18/2$1,635

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 21 February 2026.

Round-trip from

$1,520

One-way from

$616

Popular in

December

Cheapest in

April

Average price

$1,880
6/4-13/4
  • 6/4-13/4
  • 4 total stops
  • 61h 46m total
  • Colorado to Sydney
Search Deals
19/5
  • 19/5
  • 2 total stops
  • 46h 20m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($466 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 21 February 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

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 11/5

16:34-08:45

2 stops24h 11m

Sydney Kingsford Smith

Tue 26/5

11:55-22:15

2 stops26h 20m

$1,587

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 29/5

12:00-06:50

1 stop26h 50m

Sydney Kingsford Smith

Mon 15/6

09:15-20:03

1 stop26h 48m

$1,587

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 16/3

19:05-08:35

1 stop20h 30m

Sydney Kingsford Smith

Thu 28/5

09:20-17:00

1 stop23h 40m

$1,636

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

12:00-06:50

1 stop26h 50m

Sydney Kingsford Smith

Sat 22/8

09:15-20:03

1 stop26h 48m

$1,643

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 29/5

15:25-07:00

2 stops23h 35m

Sydney Kingsford Smith

Mon 15/6

10:20-20:11

2 stops25h 51m

$1,693

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

08:05-08:45

2 stops32h 40m

Sydney Kingsford Smith

Sat 22/8

19:20-19:49

2 stops40h 29m

$1,697

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 13/7

13:25-07:00

1 stop25h 35m

Sydney Kingsford Smith

Mon 27/7

10:20-12:22

1 stop18h 02m

$1,941

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 18/3

12:20-07:00

1 stop25h 40m

Sydney Kingsford Smith

Wed 25/3

11:50-21:44

1 stop26h 54m

$1,941

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 13/7

19:15-06:50

1 stop19h 35m

Sydney Kingsford Smith

Mon 27/7

09:15-11:30

1 stop18h 15m

$1,942

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 5/4

15:55-07:00

2 stops23h 05m

Sydney Kingsford Smith

Mon 13/4

10:20-19:40

2 stops25h 20m

$1,948

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 28 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, September is the cheapest month in which you can book a flight from Colorado to Sydney (average of $429). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,374). 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.

How much does it cost for a return flight from Colorado to Sydney?

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 20h 30m. Air New Zealand provides one of the quickest options available for as low as $1,636. 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, September is the cheapest month in which you can book a flight from Colorado to Sydney (average of $429). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,374). 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
Manly
Katoomba
Lithgow
Terrigal
Bondi Beach
Leura
Coogee
Cronulla
Randwick

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.

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 21 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,240Average$1,938FlexibilityNo 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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