Find flights
When to book
FAQs

Cheap flights from Colorado to Sydney from $661

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Colorado to Sydney

Keep the following information in mind while searching for Colorado to Sydney flight deals. Data was last updated 16 January 2026.

Round-trip from

$1,255

One-way from

$661

Popular in

December

Cheapest in

April

Average price

$1,929
28/2-7/3
  • 28/2-7/3
  • 4 total stops
  • 67h 15m total
  • Colorado to Sydney
Search Deals
18/2
  • 18/2
  • 2 total stops
  • 45h 04m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($633 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($111 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 16 January 2026.

Sat 28/211:50
DEN
-
SYD
2 stops30h 45m
Multiple Airlines
Sat 7/306:00
SYD
-
DEN
2 stops36h 30m
Multiple Airlines
Deal found 14/1$1,255
Sun 1/306:00
DEN
-
SYD
2 stops36h 35m
Multiple Airlines
Sun 8/306:00
SYD
-
DEN
2 stops35h 30m
Multiple Airlines
Deal found 14/1$1,367
Mon 9/206:05
DEN
-
SYD
1 stop32h 55m
Multiple Airlines
Fri 20/207:05
SYD
-
DEN
2 stops29h 00m
Multiple Airlines
Deal found 13/1$1,382
Thu 5/211:00
DEN
-
SYD
1 stop28h 00m
Multiple Airlines
Sun 15/207:05
SYD
-
DEN
2 stops28h 26m
Multiple Airlines
Deal found 14/1$1,475
Sun 8/318:11
DEN
-
SYD
2 stops25h 24m
Multiple Airlines
Sun 22/314:00
SYD
-
DEN
2 stops27h 37m
Multiple Airlines
Deal found 12/1$1,548
Mon 23/212:59
DEN
-
SYD
1 stop26h 01m
Qantas Airways
Sun 8/319:15
SYD
-
DEN
2 stops35h 42m
Qantas Airways
Deal found 12/1$1,611
Tue 10/212:53
DEN
-
SYD
1 stop26h 07m
Qantas Airways
Tue 17/207:05
SYD
-
DEN
2 stops30h 09m
Qantas Airways
Deal found 12/1$1,616
Thu 12/212:59
DEN
-
SYD
1 stop26h 01m
Qantas Airways
Thu 19/207:05
SYD
-
DEN
2 stops23h 24m
Qantas Airways
Deal found 13/1$1,617
Tue 3/319:44
DEN
-
SYD
2 stops27h 56m
Qantas Airways
Tue 10/311:20
SYD
-
DEN
1 stop18h 09m
Qantas Airways
Deal found 13/1$1,648
Mon 2/320:04
DEN
-
SYD
2 stops27h 36m
Qantas Airways
Mon 9/311:20
SYD
-
DEN
1 stop18h 09m
Qantas Airways
Deal found 13/1$1,650
Tue 10/221:31
DEN
-
SYD
1 stop39h 54m
Multiple Airlines
Fri 20/214:00
SYD
-
DEN
2 stops38h 02m
Multiple Airlines
Deal found 14/1$1,656
Thu 13/808:05
ASE
-
SYD
2 stops32h 40m
Air New Zealand
Sat 22/819:20
SYD
-
ASE
2 stops40h 30m
Air New Zealand
Deal found 14/1$1,795

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 16 January 2026.
Use the filters below to find and compare flights from Colorado to Sydney that are best for you.

Fly from

Colorado

Fly to

Sydney

Route

Depart

Return

Price

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Sat 14/2

18:39-06:20

1 stop41h 41m

Sydney Kingsford Smith

Wed 18/2

11:20-12:55

1 stop19h 35m

$1,828

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 14/2

11:36-07:00

2 stops49h 24m

Sydney Kingsford Smith

Wed 18/2

11:20-14:30

2 stops21h 10m

$1,846

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 6/2

17:09-19:45

2 stops32h 36m

Sydney Kingsford Smith

Thu 19/2

21:40-17:48

2 stops38h 08m

$2,016

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 6/2

17:09-19:45

2 stops32h 36m

Sydney Kingsford Smith

Fri 20/2

21:40-23:59

2 stops44h 19m

$2,016

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 11/2

13:30-07:00

1 stop23h 30m

Sydney Kingsford Smith

Sun 22/2

11:20-12:28

1 stop19h 08m

$2,026

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 9/2

19:39-19:45

2 stops54h 06m

Sydney Kingsford Smith

Fri 20/2

21:40-17:48

2 stops38h 08m

$2,029

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 11/2

12:34-19:45

2 stops37h 11m

Sydney Kingsford Smith

Thu 19/2

21:40-17:48

2 stops38h 08m

$2,029

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 11/2

12:34-19:45

2 stops37h 11m

Sydney Kingsford Smith

Fri 20/2

21:40-11:38

2 stops31h 58m

$2,029

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 12/2

13:10-19:45

2 stops36h 35m

Sydney Kingsford Smith

Fri 20/2

21:40-17:48

2 stops38h 08m

$2,029

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 8/2

08:04-19:45

2 stops41h 41m

Sydney Kingsford Smith

Fri 20/2

21:40-11:38

2 stops31h 58m

$2,029

Flights are sorted by cheapest return flights first.

Deals found on 13/1

Showing 1-10 of 22 results
1
2
3

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, June is the cheapest month in which you can book a flight from Colorado to Sydney (average of $983). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,275). 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 41h 41m. United Airlines provides one of the quickest options available for as low as $1,828. The distance between Colorado and Sydney is about 13234 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, June is the cheapest month in which you can book a flight from Colorado to Sydney (average of $983). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,275). 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
Terrigal
Katoomba
Manly
Lithgow
Coogee
Leura
Randwick
Cronulla
Bondi Beach

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.

Alternative routes for Colorado to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Sydney flights
San Francisco to Sydney flights
Dallas/Fort Worth to Sydney flights
John F Kennedy Intl to Sydney flights
Newark to Sydney flights
Honolulu to Sydney flights
O'Hare Intl to Sydney flights
Dulles Intl to Sydney flights
Seattle to Sydney flights
Hobby to Sydney flights
Boston to Sydney flights
Baltimore to Sydney flights
George Bush Intcntl to Sydney flights
Reagan-National to Sydney flights
Atlanta to Sydney flights
Midway to Sydney flights
Miami to Sydney flights
Minneapolis to Sydney flights
Philadelphia to Sydney flights
Charlotte to Sydney flights
Detroit to Sydney flights
Denver to Sydney flights
Fort Lauderdale to Sydney flights
Sky Harbor Intl to Sydney flights
San Jose to Sydney flights
Orlando to Sydney flights
San Diego to Sydney flights
Love Field to Sydney flights
Raleigh to Sydney flights
Oakland to Sydney flights
Portland to Sydney flights
Sacramento to Sydney flights
Austin to Sydney flights
Salt Lake City to Sydney flights
Cincinnati to Sydney flights
Indianapolis to Sydney flights
Memphis to Sydney flights
Pittsburgh to Sydney flights
Tampa to Sydney flights
Las Vegas to Sydney flights
St. Louis to Sydney flights
Nashville to Sydney flights

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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$988Average$1,947FlexibilityNo 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.