Find flights
When to book
FAQs

Cheap flights from Colorado to Sydney from $558

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
9 Apr — 16 Apr1
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 10 March 2026.

Mon 18/506:05
DEN
-
SYD
2 stops38h 00m
Multiple Airlines
Mon 1/613:15
SYD
-
DEN
2 stops22h 02m
Multiple Airlines
Deal found 8/3$1,307
Wed 29/421:30
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
Wed 13/511:00
SYD
-
DEN
2 stops24h 49m
Multiple Airlines
Deal found 6/3$1,555
Mon 4/506:00
DEN
-
SYD
1 stop33h 30m
Multiple Airlines
Tue 12/506:20
SYD
-
DEN
2 stops44h 27m
Multiple Airlines
Deal found 6/3$1,558
Sun 26/416:34
DEN
-
SYD
2 stops26h 06m
Air New Zealand
Sun 10/509:55
SYD
-
DEN
2 stops26h 53m
Air New Zealand
Deal found 6/3$1,590
Mon 20/416:34
DEN
-
SYD
2 stops24h 11m
Air New Zealand
Mon 27/411:55
SYD
-
DEN
2 stops26h 20m
Air New Zealand
Deal found 5/3$1,592
Tue 25/817:50
DEN
-
SYD
2 stops22h 55m
Air New Zealand
Sun 6/909:55
SYD
-
DEN
2 stops26h 11m
Air New Zealand
Deal found 10/3$1,593
Tue 21/421:30
DEN
-
SYD
1 stop42h 00m
Multiple Airlines
Tue 28/406:20
SYD
-
DEN
2 stops29h 29m
Multiple Airlines
Deal found 7/3$1,597
Mon 23/319:05
DEN
-
SYD
1 stop20h 30m
Air Canada
Wed 8/409:20
SYD
-
DEN
1 stop19h 15m
Air Canada
Deal found 9/3$1,603
Mon 19/1020:39
DEN
-
SYD
2 stops43h 06m
Air New Zealand
Mon 2/1111:45
SYD
-
DEN
2 stops28h 16m
Air New Zealand
Deal found 9/3$1,605
Wed 2/917:45
DEN
-
SYD
2 stops23h 00m
Air New Zealand
Wed 16/911:55
SYD
-
DEN
2 stops26h 06m
Air New Zealand
Deal found 5/3$1,606
Tue 4/815:43
DEN
-
SYD
2 stops26h 57m
Air New Zealand
Wed 12/809:55
SYD
-
DEN
2 stops25h 35m
Air New Zealand
Deal found 9/3$1,609
Mon 20/412:18
COS
-
SYD
2 stops28h 27m
Air New Zealand
Mon 27/409:55
SYD
-
COS
2 stops41h 29m
Air New Zealand
Deal found 6/3$1,650

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 10 March 2026.

Round-trip from

$1,307

One-way from

$558

Popular in

December

Cheapest in

April

Average price

$1,738
18/5-1/6
  • 18/5-1/6
  • 4 total stops
  • 60h 02m total
  • Colorado to Sydney
Search Deals
5/5
  • 5/5
  • 2 total stops
  • 40h 35m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($330 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($64 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 10 March 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

11:38-08:45

2 stops29h 07m

Sydney Kingsford Smith

Sat 22/8

19:20-19:57

2 stops40h 37m

$1,691

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

$1,704

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

18:58-07:00

1 stop20h 02m

Sydney Kingsford Smith

Sat 22/8

09:30-21:21

2 stops27h 51m

$1,711

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 9/5

12:10-06:55

2 stops50h 45m

Sydney Kingsford Smith

Wed 13/5

10:20-20:01

2 stops25h 41m

$1,716

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Fri 1/5

17:12-06:55

2 stops21h 43m

Sydney Kingsford Smith

Wed 20/5

09:30-18:22

2 stops24h 52m

$2,082
Fastest return journey

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 10/7

19:34-06:55

1 stop19h 21m

Sydney Kingsford Smith

Sat 18/7

10:20-12:22

1 stop18h 02m

$2,147

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 22/4

17:13-07:00

2 stops21h 47m

Sydney Kingsford Smith

Wed 29/4

10:20-20:02

2 stops25h 42m

$2,224

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Fri 24/4

07:39-08:45

2 stops33h 06m

Sydney Kingsford Smith

Fri 1/5

07:50-11:25

2 stops43h 35m

$2,252

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 18/7

18:25-06:50

2 stops44h 25m

Sydney Kingsford Smith

Wed 29/7

09:15-11:30

1 stop18h 15m

$2,355

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 3/4

13:00-10:20

2 stops28h 20m

Sydney Kingsford Smith

Sun 12/4

09:10-12:06

1 stop18h 56m

$2,400

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 36 resultsSorted by cheapest first
1
2
3
4

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 $431). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,415). 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.

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 28h 20m. Air New Zealand provides one of the quickest options available for as low as $2,400. 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 $431). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,415). 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
Terrigal
Lithgow
Bondi Beach
Coogee
Cronulla
Leura
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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,285Average$1,948FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.