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Cheap flights from Colorado to Sydney from $741

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
11 Jul — 18 Jul1
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 11 June 2026.

Sat 1/807:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Sat 15/813:15
SYD
-
DEN
2 stops27h 27m
Multiple Airlines
Deal found 8/6$1,438
Tue 3/1112:02
DEN
-
SYD
1 stop24h 23m
Multiple Airlines
Tue 17/1121:40
SYD
-
DEN
2 stops30h 15m
Multiple Airlines
Deal found 6/6$1,594
Tue 13/1006:30
DEN
-
SYD
1 stop32h 00m
Multiple Airlines
Tue 27/1021:40
SYD
-
DEN
2 stops29h 15m
Multiple Airlines
Deal found 6/6$1,634
Thu 15/1012:17
DEN
-
SYD
1 stop26h 13m
Multiple Airlines
Tue 27/1021:40
SYD
-
DEN
2 stops29h 15m
Multiple Airlines
Deal found 6/6$1,662
Mon 19/1022:29
DEN
-
SYD
1 stop40h 01m
Multiple Airlines
Tue 27/1011:15
SYD
-
DEN
1 stop23h 57m
Multiple Airlines
Deal found 6/6$1,665
Mon 19/1022:29
DEN
-
SYD
1 stop40h 01m
Multiple Airlines
Thu 22/1018:50
SYD
-
DEN
1 stop22h 35m
Multiple Airlines
Deal found 6/6$1,694
Tue 13/1006:30
DEN
-
SYD
1 stop32h 00m
Multiple Airlines
Fri 23/1018:50
SYD
-
DEN
1 stop31h 50m
Multiple Airlines
Deal found 6/6$1,705
Fri 24/719:15
ASE
-
SYD
1 stop19h 40m
United Airlines
Mon 3/810:20
SYD
-
ASE
1 stop25h 35m
United Airlines
Deal found 6/6$1,915
Fri 24/719:15
ASE
-
SYD
1 stop19h 40m
Air New Zealand
Mon 3/809:30
SYD
-
ASE
2 stops22h 38m
Air New Zealand
Deal found 6/6$1,920
Thu 13/809:40
ASE
-
SYD
1 stop29h 15m
Air New Zealand
Sat 22/809:30
SYD
-
ASE
1 stop20h 04m
Air New Zealand
Deal found 10/6$1,966
Sat 25/717:10
ASE
-
SYD
2 stops21h 50m
United Airlines
Sat 1/809:30
SYD
-
ASE
1 stop20h 11m
United Airlines
Deal found 10/6$1,984
Thu 13/819:12
ASE
-
SYD
1 stop19h 48m
United Airlines
Sat 22/809:30
SYD
-
ASE
1 stop20h 04m
United Airlines
Deal found 8/6$1,986

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 11 June 2026.

Round-trip from

$1,438

One-way from

$741

Popular in

December

Cheapest in

September

Average price

$1,982
1/8-15/8
  • 1/8-15/8
  • 4 total stops
  • 64h 17m total
  • Colorado to Sydney
Search Deals
14/9
  • 14/9
  • 1 total stop
  • 41h 01m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($429 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($82 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 11 June 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

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 24/8

07:00-09:15

2 stops34h 15m

Sydney Kingsford Smith

Fri 4/9

17:50-00:40

1 stop22h 50m

$1,883

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 24/7

19:15-06:55

1 stop19h 40m

Sydney Kingsford Smith

Mon 3/8

10:20-19:55

1 stop25h 35m

$1,915

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Fri 25/9

19:12-07:00

1 stop19h 48m

Sydney Kingsford Smith

Tue 13/10

10:30-20:55

1 stop27h 25m

$1,937

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

09:40-06:55

1 stop29h 15m

Sydney Kingsford Smith

Sat 22/8

09:30-14:23

2 stops20h 53m

$1,973

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Sat 25/7

19:15-07:00

1 stop19h 45m

Sydney Kingsford Smith

Sat 1/8

09:30-13:41

1 stop20h 11m

$1,984

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Sat 25/7

17:10-07:00

2 stops21h 50m

Sydney Kingsford Smith

Sat 1/8

09:30-13:41

1 stop20h 11m

$1,984
Fastest return journey

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

19:12-07:00

1 stop19h 48m

Sydney Kingsford Smith

Sat 22/8

09:30-13:34

1 stop20h 04m

$1,986

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Thu 20/8

15:09-07:00

2 stops23h 51m

Sydney Kingsford Smith

Mon 24/8

10:20-16:26

2 stops22h 06m

$2,090

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 13/11

12:55-12:35

2 stops29h 40m

Sydney Kingsford Smith

Fri 4/12

14:00-18:44

2 stops22h 44m

$2,217

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Mon 6/7

10:23-06:55

2 stops28h 32m

Sydney Kingsford Smith

Sun 12/7

10:20-22:06

2 stops27h 46m

$2,275

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 36 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, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $161). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,212). 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?

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 31 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 19h 40m. United Airlines provides one of the quickest options available for as low as $1,915. 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 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, February is the cheapest month in which you can book a flight from Colorado to Sydney (average of $161). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,212). 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
Cronulla
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,248Average$1,992FlexibilityNo 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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