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Cheap flights from Colorado to Sydney from $648

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
27 May — 3 Jun1
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 27 April 2026.

Fri 14/807:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Thu 27/813:15
SYD
-
DEN
2 stops27h 25m
Multiple Airlines
Deal found 26/4$1,404
Sun 23/807:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Thu 3/913:15
SYD
-
DEN
2 stops27h 25m
Multiple Airlines
Deal found 26/4$1,411
Tue 28/409:30
DEN
-
SYD
3 stops34h 20m
Multiple Airlines
Mon 4/513:15
SYD
-
DEN
3 stops30h 10m
Multiple Airlines
Deal found 27/4$1,509
Sat 16/522:39
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Tue 26/517:50
SYD
-
DEN
1 stop32h 14m
Multiple Airlines
Deal found 24/4$1,619
Sat 16/507:20
DEN
-
SYD
2 stops36h 30m
Multiple Airlines
Wed 27/517:50
SYD
-
DEN
1 stop18h 16m
Multiple Airlines
Deal found 24/4$1,621
Sat 16/522:39
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Sun 24/517:50
SYD
-
DEN
1 stop32h 14m
Multiple Airlines
Deal found 24/4$1,628
Sat 16/522:39
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Sat 23/517:50
SYD
-
DEN
1 stop22h 48m
Multiple Airlines
Deal found 24/4$1,629
Wed 27/507:20
DEN
-
SYD
2 stops36h 30m
Multiple Airlines
Tue 9/617:50
SYD
-
DEN
1 stop32h 12m
Multiple Airlines
Deal found 26/4$1,644
Sun 24/507:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Sun 31/517:50
SYD
-
DEN
1 stop32h 14m
Multiple Airlines
Deal found 23/4$1,689
Wed 22/721:25
DEN
-
SYD
2 stops46h 25m
Multiple Airlines
Sat 1/817:50
SYD
-
DEN
1 stop22h 46m
Multiple Airlines
Deal found 26/4$1,716
Wed 13/522:39
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Tue 26/517:50
SYD
-
DEN
1 stop32h 14m
Multiple Airlines
Deal found 24/4$1,721
Tue 9/615:42
COS
-
SYD
2 stops23h 18m
United Airlines
Tue 16/610:20
SYD
-
COS
2 stops20h 20m
United Airlines
Deal found 24/4$1,739

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 27 April 2026.

Round-trip from

$1,411

One-way from

$648

Popular in

December

Cheapest in

April

Average price

$1,647
23/8-3/9
  • 23/8-3/9
  • 4 total stops
  • 64h 15m total
  • Colorado to Sydney
Search Deals
6/8
  • 6/8
  • 2 total stops
  • 36h 50m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($309 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($70 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 27 April 2026.
Use the filters below to find and compare flights from Colorado to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 9/6

15:42-07:00

2 stops23h 18m

Sydney Kingsford Smith

Tue 16/6

10:20-14:40

2 stops20h 20m

$1,739
Fastest return journey

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

18:58-07:00

1 stop20h 02m

Sydney Kingsford Smith

Sat 22/8

09:30-13:36

1 stop20h 06m

$1,865

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Thu 11/6

15:42-06:55

2 stops23h 13m

Sydney Kingsford Smith

Thu 18/6

09:30-16:32

2 stops23h 02m

$1,871

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Sat 29/8

18:58-07:00

1 stop20h 02m

Sydney Kingsford Smith

Wed 2/9

09:30-20:26

1 stop26h 56m

$2,087

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Fri 7/8

17:07-07:00

2 stops21h 53m

Sydney Kingsford Smith

Tue 11/8

10:20-23:49

2 stops29h 29m

$2,094

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 24/8

18:26-11:50

2 stops25h 24m

Sydney Kingsford Smith

Sun 6/9

13:15-23:59

2 stops26h 44m

$2,165

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 17/8

18:26-11:50

2 stops25h 24m

Sydney Kingsford Smith

Fri 21/8

13:15-23:59

2 stops26h 44m

$2,165

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 19/7

21:08-18:50

2 stops29h 42m

Sydney Kingsford Smith

Tue 11/8

20:45-18:09

2 stops37h 24m

$2,657

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 13/5

19:58-11:50

2 stops23h 52m

Sydney Kingsford Smith

Wed 20/5

13:20-19:28

2 stops22h 08m

$2,660

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 11/6

11:45-07:00

1 stop27h 15m

Sydney Kingsford Smith

Thu 18/6

10:20-16:35

1 stop22h 15m

$2,797

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 29 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Colorado to Sydney?

The price you pay for your flight from Colorado to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $157). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,184). 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 23h 18m. United Airlines provides one of the quickest options available for as low as $1,739. The distance between Colorado and Sydney is about 13390 km.

  • 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, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $157). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,184). 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
Katoomba
Terrigal
Lithgow
Cronulla
Manly
Bondi Beach
Leura
Randwick
Coogee

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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,257Average$1,905FlexibilityNo 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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