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Cheap flights from Colorado to Sydney from $732

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
20 Aug — 27 Aug1
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 July 2026.

Mon 26/1012:17
DEN
-
SYD
2 stops31h 18m
Multiple Airlines
Thu 12/1114:00
SYD
-
DEN
2 stops28h 25m
Multiple Airlines
Deal found 16/7$1,364
Sat 22/807:00
DEN
-
SYD
2 stops47h 25m
Multiple Airlines
Sat 29/813:15
SYD
-
DEN
2 stops27h 29m
Multiple Airlines
Deal found 19/7$1,367
Tue 25/822:39
DEN
-
SYD
2 stops45h 11m
Multiple Airlines
Thu 3/913:15
SYD
-
DEN
2 stops27h 29m
Multiple Airlines
Deal found 17/7$1,393
Tue 18/822:39
DEN
-
SYD
1 stop40h 51m
Multiple Airlines
Tue 25/813:15
SYD
-
DEN
2 stops39h 58m
Multiple Airlines
Deal found 21/7$1,403
Sat 5/907:00
DEN
-
SYD
2 stops47h 25m
Multiple Airlines
Fri 18/913:15
SYD
-
DEN
2 stops27h 10m
Multiple Airlines
Deal found 19/7$1,419
Sun 23/807:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Sat 29/813:15
SYD
-
DEN
2 stops27h 29m
Multiple Airlines
Deal found 17/7$1,439
Fri 25/912:02
DEN
-
SYD
2 stops42h 23m
Multiple Airlines
Thu 8/1006:05
SYD
-
DEN
2 stops35h 20m
Multiple Airlines
Deal found 19/7$1,463
Wed 14/1022:29
DEN
-
SYD
1 stop40h 01m
Multiple Airlines
Sun 25/1014:00
SYD
-
DEN
2 stops41h 37m
Multiple Airlines
Deal found 20/7$1,490
Wed 19/807:25
DEN
-
SYD
2 stops36h 25m
Multiple Airlines
Wed 26/813:15
SYD
-
DEN
3 stops34h 59m
Multiple Airlines
Deal found 20/7$1,500
Thu 13/812:50
ASE
-
SYD
1 stop26h 05m
Qantas Airways
Mon 24/812:00
SYD
-
ASE
1 stop24h 16m
Qantas Airways
Deal found 19/7$1,713
Thu 13/819:12
ASE
-
SYD
1 stop19h 48m
United Airlines
Mon 24/809:30
SYD
-
ASE
1 stop26h 56m
United Airlines
Deal found 17/7$1,767
Thu 13/812:50
ASE
-
SYD
1 stop26h 05m
Qantas Airways
Sat 22/812:00
SYD
-
ASE
1 stop24h 16m
Qantas Airways
Deal found 20/7$1,783

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 July 2026.

Round-trip from

$1,364

One-way from

$732

Popular in

December

Cheapest in

September

Average price

$1,794
26/10-12/11
  • 26/10-12/11
  • 4 total stops
  • 59h 43m total
  • Colorado to Sydney
Search Deals
10/9
  • 10/9
  • 3 total stops
  • 40h 03m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($450 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 July 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 - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

19:12-07:00

1 stop19h 48m

Sydney Kingsford Smith

Mon 24/8

09:30-20:26

1 stop26h 56m

$1,767

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

09:40-06:55

1 stop29h 15m

Sydney Kingsford Smith

Sat 22/8

10:20-19:52

1 stop25h 32m

$1,839

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 19/8

11:55-06:55

2 stops27h 00m

Sydney Kingsford Smith

Sun 23/8

09:30-14:32

2 stops21h 02m

$2,187

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 24/8

19:45-10:40

2 stops22h 55m

Sydney Kingsford Smith

Mon 21/9

09:20-18:04

2 stops24h 44m

$2,199

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 28/11

17:25-07:00

1 stop43h 35m

Sydney Kingsford Smith

Fri 18/12

11:50-12:30

1 stop18h 40m

$2,596

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 19/11

16:45-20:50

2 stops34h 05m

Sydney Kingsford Smith

Tue 1/12

08:45-20:13

2 stops29h 28m

$3,069

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 18/11

06:15-19:35

3 stops67h 20m

Sydney Kingsford Smith

Tue 1/12

21:30-14:23

3 stops58h 53m

$3,116

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 19/8

09:23-07:20

3 stops29h 57m

Sydney Kingsford Smith

Sun 23/8

09:20-08:40

2 stops39h 20m

$3,303

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 26/10

20:55-12:15

2 stops46h 20m

Sydney Kingsford Smith

Thu 12/11

22:10-23:25

3 stops43h 15m

$3,438

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 18/11

06:15-19:35

3 stops67h 20m

Sydney Kingsford Smith

Sun 29/11

21:30-14:23

3 stops58h 53m

$3,645

Flights are sorted by cheapest return flights first.

Deals found on 19/7

Showing 1-10 of 31 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, September is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,686). Flying from Colorado to Sydney in December is currently the most expensive (average of $2,567). 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 6 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 48m. United Airlines provides one of the quickest options available for as low as $1,767. 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, September is the cheapest month in which you can book a flight from Colorado to Sydney (average of $1,686). Flying from Colorado to Sydney in December is currently the most expensive (average of $2,567). 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
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,290Average$1,996FlexibilityNo 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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