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Cheap flights from Colorado to Sydney from $706

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SYD
24 Aug — 31 Aug1
1 adult

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 19 August 2025.

Round-trip from

$1,373

One-way from

$706

Popular in

December

Cheapest in

April

Average price

$1,706
15/9-30/9
  • 15/9-30/9
  • 4 total stops
  • 55h 13m total
  • Colorado to Sydney
Search Deals
1/11
  • 1/11
  • 2 total stops
  • 30h 00m total
  • Colorado to Sydney
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($460 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($93 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Colorado to Sydney

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 19 August 2025.

Mon 15/915:43DEN - SYD
2 stops28h 02mMultiple Airlines
Tue 30/913:15SYD - DEN
2 stops27h 11mMultiple Airlines
Deal found 17/8$1,373
Tue 9/911:15DEN - SYD
2 stops32h 30mMultiple Airlines
Mon 22/913:15SYD - DEN
2 stops27h 21mMultiple Airlines
Deal found 16/8$1,397
Sun 14/906:00DEN - SYD
2 stops37h 45mMultiple Airlines
Sun 21/913:15SYD - DEN
2 stops27h 11mMultiple Airlines
Deal found 17/8$1,437
Thu 30/1013:23DEN - SYD
2 stops25h 02mMultiple Airlines
Fri 7/1111:15SYD - DEN
2 stops30h 44mMultiple Airlines
Deal found 18/8$1,594
Wed 17/911:15DEN - SYD
1 stop28h 15mMultiple Airlines
Wed 24/909:10SYD - DEN
1 stop24h 03mMultiple Airlines
Deal found 17/8$1,639
Tue 4/1113:45DEN - SYD
2 stops25h 00mAir New Zealand
Tue 11/1111:45SYD - DEN
2 stops22h 41mAir New Zealand
Deal found 17/8$1,683
Mon 15/915:40DEN - SYD
2 stops25h 05mAir New Zealand
Mon 22/911:50SYD - DEN
2 stops23h 50mAir New Zealand
Deal found 16/8$1,685
Wed 22/1015:46DEN - SYD
2 stops23h 59mAir New Zealand
Mon 3/1109:55SYD - DEN
2 stops24h 31mAir New Zealand
Deal found 18/8$1,686
Mon 10/1113:45DEN - SYD
2 stops25h 00mAir New Zealand
Sun 23/1113:55SYD - DEN
2 stops23h 45mAir New Zealand
Deal found 19/8$1,712
Thu 13/1112:00ASE - SYD
1 stop26h 30mDelta
Mon 17/1110:40SYD - ASE
1 stop26h 04mDelta
Deal found 17/8$1,884
Wed 1/1012:02ASE - SYD
1 stop26h 33mDelta
Wed 8/1010:25SYD - ASE
1 stop24h 27mDelta
Deal found 17/8$1,892
Sun 14/915:45COS - SYD
2 stops23h 15mUnited Airlines
Sun 21/910:20SYD - COS
2 stops22h 14mUnited Airlines
Deal found 17/8$1,971

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 19 August 2025.
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

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 30/10

13:23-07:25

2 stops25h 02m

Sydney Kingsford Smith

Fri 7/11

11:15-23:59

2 stops30h 44m

$1,594

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 17/9

11:15-07:30

1 stop28h 15m

Sydney Kingsford Smith

Wed 24/9

09:10-17:13

1 stop24h 03m

$1,639

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 22/10

15:46-08:45

2 stops23h 59m

Sydney Kingsford Smith

Mon 3/11

09:55-16:26

2 stops24h 31m

$1,686

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 17/11

16:05-08:45

2 stops22h 40m

Sydney Kingsford Smith

Mon 24/11

13:55-17:58

2 stops22h 03m

$1,686

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 12/11

16:05-08:45

2 stops22h 40m

Sydney Kingsford Smith

Wed 26/11

13:55-17:58

2 stops22h 03m

$1,714

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 10/11

16:05-08:45

2 stops22h 40m

Sydney Kingsford Smith

Sun 23/11

13:55-21:55

2 stops26h 00m

$1,714

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 22/10

15:46-08:45

2 stops23h 59m

Sydney Kingsford Smith

Sun 2/11

13:55-22:55

2 stops26h 00m

$1,717

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 1/11

20:37-08:45

2 stops43h 08m

Sydney Kingsford Smith

Mon 10/11

13:55-20:20

2 stops24h 25m

$1,729

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 16/9

15:02-14:40

2 stops31h 38m

Sydney Kingsford Smith

Tue 30/9

17:45-17:13

1 stop39h 28m

$1,743

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 9/2

15:45-08:45

2 stops23h 00m

Sydney Kingsford Smith

Sat 28/2

19:15-16:07

2 stops38h 52m

$1,752

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 43 results
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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, May is the cheapest month in which you can book a flight from Colorado to Sydney (average of $129). Flying from Colorado to Sydney in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from CO to SYD?

Find hourly flight availability from Colorado to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

When flying from Colorado to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 23h 15m. Air New Zealand provides one of the quickest options available for as low as $1,971. The distance between Colorado and Sydney is about 13390 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, May is the cheapest month in which you can book a flight from Colorado to Sydney (average of $129). Flying from Colorado to Sydney in October is currently the most expensive (average of $171). 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
Katoomba
Penrith
Coogee
Terrigal
Manly
Cronulla
Lithgow
Randwick
Bondi Beach
Leura

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Top 3 airlines flying from Colorado to Sydney

Discover the top 3 airlines 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$307Average$1,431FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$475Average$2,244FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,264Average$2,039FlexibilityNo 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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