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Cheap flights from Colorado to Sydney from $608

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
27 Apr — 4 May1
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 28 March 2026.

Mon 11/507:00
DEN
-
SYD
2 stops37h 05m
Multiple Airlines
Sun 17/506:00
SYD
-
DEN
2 stops34h 38m
Multiple Airlines
Deal found 27/3$1,236
Tue 26/507:20
DEN
-
SYD
2 stops36h 30m
Multiple Airlines
Tue 2/613:15
SYD
-
DEN
2 stops22h 51m
Multiple Airlines
Deal found 25/3$1,253
Thu 7/507:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Thu 14/506:00
SYD
-
DEN
2 stops34h 38m
Multiple Airlines
Deal found 23/3$1,270
Mon 4/506:00
DEN
-
SYD
2 stops48h 10m
Multiple Airlines
Fri 8/506:00
SYD
-
DEN
2 stops34h 38m
Multiple Airlines
Deal found 24/3$1,282
Wed 22/413:40
DEN
-
SYD
2 stops30h 10m
Multiple Airlines
Wed 29/413:20
SYD
-
DEN
2 stops22h 29m
Multiple Airlines
Deal found 23/3$1,297
Mon 11/507:00
DEN
-
SYD
2 stops37h 05m
Multiple Airlines
Sun 24/513:15
SYD
-
DEN
2 stops22h 51m
Multiple Airlines
Deal found 26/3$1,299
Mon 13/409:20
DEN
-
SYD
2 stops44h 50m
Multiple Airlines
Mon 25/513:15
SYD
-
DEN
2 stops27h 23m
Multiple Airlines
Deal found 23/3$1,347
Sat 23/507:00
DEN
-
SYD
2 stops36h 50m
Multiple Airlines
Fri 5/613:15
SYD
-
DEN
2 stops27h 23m
Multiple Airlines
Deal found 25/3$1,369
Sun 26/419:05
DEN
-
SYD
1 stop20h 15m
Air Canada
Sun 10/509:20
SYD
-
DEN
2 stops24h 47m
Air Canada
Deal found 24/3$1,587
Wed 29/419:05
DEN
-
SYD
1 stop20h 15m
Air Canada
Tue 19/509:20
SYD
-
DEN
1 stop29h 50m
Air Canada
Deal found 25/3$1,594
Thu 13/818:58
ASE
-
SYD
1 stop20h 02m
United Airlines
Sat 22/809:30
SYD
-
ASE
1 stop26h 56m
United Airlines
Deal found 28/3$2,041
Thu 13/812:00
ASE
-
SYD
1 stop26h 50m
Delta
Sat 22/809:15
SYD
-
ASE
1 stop26h 48m
Delta
Deal found 27/3$2,043

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 28 March 2026.

Round-trip from

$1,236

One-way from

$608

Popular in

December

Cheapest in

April

Average price

$1,773
11/5-17/5
  • 11/5-17/5
  • 4 total stops
  • 71h 43m total
  • Colorado to Sydney
Search Deals
23/4
  • 23/4
  • 2 total stops
  • 48h 10m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($331 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($67 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 28 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
Fastest return journey

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 24/5

18:08-07:30

1 stop21h 22m

Sydney Kingsford Smith

Thu 28/5

09:10-11:01

1 stop17h 51m

$1,792

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/5

12:41-07:05

1 stop26h 24m

Sydney Kingsford Smith

Mon 11/5

09:10-17:48

1 stop24h 38m

$1,792

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 1/5

18:07-18:50

2 stops32h 43m

Sydney Kingsford Smith

Sun 24/5

20:45-13:39

2 stops32h 54m

$1,996

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

$2,043

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

18:58-07:00

1 stop20h 02m

Sydney Kingsford Smith

Sat 22/8

09:30-13:36

1 stop20h 06m

$2,043

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 9/5

11:40-07:00

2 stops27h 20m

Sydney Kingsford Smith

Sat 16/5

10:20-17:26

2 stops23h 06m

$2,079

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Wed 13/5

17:12-07:00

2 stops21h 48m

Sydney Kingsford Smith

Sun 17/5

09:30-18:22

2 stops24h 52m

$2,181

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/7

17:54-06:55

1 stop21h 01m

Sydney Kingsford Smith

Wed 22/7

10:20-16:35

1 stop22h 15m

$2,335

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 1/5

12:55-06:50

1 stop25h 55m

Sydney Kingsford Smith

Sun 10/5

09:15-12:19

1 stop19h 04m

$2,384

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 26/6

11:32-18:50

2 stops39h 18m

Sydney Kingsford Smith

Sat 18/7

20:45-23:59

2 stops43h 14m

$2,410

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 27 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 $440). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,443). 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 20h 02m. Qantas Airways provides one of the quickest options available for as low as $2,043. 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 $440). Flying from Colorado to Sydney in January is currently the most expensive (average of $1,443). 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
Lithgow
Katoomba
Manly
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 28 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,310Average$1,986FlexibilityNo 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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