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Cheap flights from Colorado to Sydney from $743

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
5 Sep — 12 Sep1
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 6 August 2026.

Sat 12/913:10 -
2 stops41h 15m
Wed 23/906:15 -
3 stops33h 29m
Deal found 2/8$1,370
Wed 21/1006:30 -
1 stop32h 00m
Wed 11/1114:00 -
2 stops42h 37m
Deal found 2/8$1,378
Mon 21/913:10 -
1 stop26h 20m
Sun 4/1015:25 -
2 stops35h 07m
Deal found 2/8$1,402
Sat 24/1022:29 -
1 stop38h 56m
Fri 13/1114:55 -
2 stops37h 00m
Deal found 3/8$1,415
Tue 27/1012:02 -
1 stop25h 23m
Fri 13/1114:55 -
2 stops37h 00m
Deal found 3/8$1,421
Mon 19/1012:17 -
1 stop26h 13m
Thu 29/1014:00 -
2 stops36h 55m
Deal found 4/8$1,425
Fri 30/1022:29 -
1 stop38h 56m
Fri 13/1114:55 -
2 stops37h 00m
Deal found 3/8$1,432
Tue 27/1012:02 -
1 stop25h 23m
Tue 10/1114:00 -
2 stops37h 55m
Deal found 2/8$1,436
Thu 29/1012:02 -
1 stop25h 23m
Fri 13/1114:55 -
2 stops37h 00m
Deal found 3/8$1,439
Thu 22/1006:30 -
1 stop32h 00m
Thu 29/1014:00 -
2 stops36h 55m
Deal found 4/8$1,442
Sat 24/1022:29 -
1 stop38h 56m
Mon 9/1114:00 -
2 stops28h 25m
Deal found 3/8$1,444
Thu 13/819:12 -
1 stop19h 48m
Mon 24/809:30 -
1 stop26h 56m
Deal found 3/8$1,825

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 6 August 2026.

Round-trip from

$1,370

One-way from

$743

Popular in

December

Cheapest in

May

Average price

$2,018
12/9-23/9
  • 12/9-23/9
  • 5 total stops
  • 74h 44m total
  • Colorado to Sydney
Search Deals
31/8
  • 31/8
  • 3 total stops
  • 55h 36m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($422 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($80 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 6 August 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

AspenSydney

ASE Aspen Pitkin County - SYD Sydney Kingsford Smith

ASESYD

Aspen Pitkin County

Tue 8/9

09:40-06:55

1 stop29h 15m

Sydney Kingsford Smith

Wed 23/9

09:30-20:26

1 stop26h 56m

$1,926

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 25/8

19:08-18:50

2 stops31h 42m

Sydney Kingsford Smith

Sun 6/9

20:45-12:20

2 stops31h 35m

$1,977

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Thu 27/8

19:30-18:50

2 stops31h 20m

Sydney Kingsford Smith

Sun 6/9

20:45-12:20

2 stops31h 35m

$2,048

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Sat 12/9

13:03-06:55

2 stops25h 52m

Sydney Kingsford Smith

Sat 19/9

09:30-18:47

2 stops25h 17m

$2,072

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Sat 31/10

07:35-07:00

1 stop30h 25m

Sydney Kingsford Smith

Wed 4/11

09:15-11:19

1 stop20h 04m

$2,121

AspenSydney

ASE Aspen Pitkin County - SYD Sydney Kingsford Smith

ASESYD

Aspen Pitkin County

Wed 4/11

14:17-09:05

1 stop24h 48m

Sydney Kingsford Smith

Sun 8/11

11:20-13:36

1 stop20h 16m

$2,121

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 23/1

21:25-09:05

1 stop41h 40m

Sydney Kingsford Smith

Mon 8/2

11:50-12:30

1 stop18h 40m

$2,506

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Thu 3/12

06:15-19:25

3 stops67h 10m

Sydney Kingsford Smith

Sat 16/1

21:35-17:25

2 stops37h 50m

$2,785

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Sat 12/9

16:08-07:45

3 stops47h 37m

Sydney Kingsford Smith

Sat 19/9

07:40-14:39

2 stops46h 59m

$2,988

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Thu 17/9

17:13-06:10

2 stops44h 57m

Sydney Kingsford Smith

Thu 24/9

15:15-22:55

3 stops47h 40m

$3,158

Flights are sorted by cheapest return flights first.

Deals found on 4/8

Showing 1-10 of 35 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

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 $1,673). Flying from Colorado to Sydney in December is currently the most expensive (average of $2,548). 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?

Airfare is below average for this route at the moment.
Colorado to Sydney flights typically cost between $1,673 and $2,558 in September.
The cheapest return price found within the last 5 days was $1,370 on Multiple Airlines (12 Sept–23 Sept).

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 5 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 29h 15m. United Airlines provides one of the quickest options available for as low as $1,926. The distance between Colorado and Sydney is about 13234 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 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 $1,673). Flying from Colorado to Sydney in December is currently the most expensive (average of $2,548). 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
Manly
Lithgow
Cronulla
Randwick
Terrigal
Leura
Bondi Beach
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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,280Average$1,981FlexibilityNo 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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