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$529+ Cheap flights from Colorado to Sydney (SYD)

DEN — SYD
Sep 24 — Oct 11
Thu 9/24
Thu 10/1
1 adult, Economy
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Cheap flight deals from Colorado to Sydney

Cheapest flights from Colorado to Sydney

Tue 9/221:10 pm -
2 stops30h 40m
Tue 9/296:15 am -
3 stops33h 29m
Deal found 8/24$975
Wed 9/2312:42 pm -
2 stops41h 43m
Wed 9/301:15 pm -
3 stops26h 29m
Deal found 8/24$976
Tue 10/201:10 pm -
2 stops30h 40m
Mon 10/262:00 pm -
3 stops36h 48m
Deal found 8/21$978
Sat 10/241:10 pm -
2 stops28h 25m
Wed 11/411:50 am -
2 stops23h 45m
Deal found 8/23$1,013
Sat 9/191:10 pm -
2 stops30h 40m
Sun 9/276:00 am -
3 stops46h 51m
Deal found 8/23$1,060
Tue 11/39:10 am -
2 stops29h 25m
Thu 11/1211:50 am -
2 stops24h 13m
Deal found 8/23$1,063
Sun 9/139:05 am -
2 stops34h 45m
Fri 9/181:15 pm -
3 stops36h 52m
Deal found 8/20$1,071
Mon 11/21:10 pm -
2 stops29h 25m
Fri 11/202:00 pm -
3 stops39h 24m
Deal found 8/24$1,096
Mon 10/261:30 pm -
2 stops28h 05m
Wed 11/1111:50 am -
2 stops22h 22m
Deal found 8/21$1,139
Wed 10/218:00 am -
2 stops44h 50m
Sun 10/257:25 pm -
2 stops59h 11m
Deal found 8/24$1,190
Wed 11/412:54 pm -
1 stop24h 01m
Wed 11/182:05 pm -
1 stop24h 12m
Deal found 8/22$1,287
Tue 12/111:30 am -
2 stops27h 50m
Wed 12/231:20 pm -
2 stops25h 27m
Deal found 8/21$1,313

Find flight deals from Colorado to Sydney

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$975
(Trip.com)

One-way from

$529
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$1,362
Provider with most accurate pricing for Denver Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sydney Kingsford Smith flights.
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From Colorado to Sydney Kingsford Smith
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One-way flight from Colorado to Sydney Kingsford Smith
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Highest demand for flights based on searches. 12% potential increase in price ($203 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
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 round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 10/20

1:10 pm-7:30 am

1 stop25h 20m

Sydney Kingsford Smith

Mon 10/26

2:00 pm-3:11 pm

2 stops42h 11m

$1,278

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Tue 12/1

11:30 am-9:20 am

2 stops27h 50m

Sydney Kingsford Smith

Wed 12/23

1:20 pm-8:47 pm

2 stops25h 27m

$1,313

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Tue 9/22

5:01 pm-7:00 am

2 stops21h 59m

Sydney Kingsford Smith

Tue 9/29

9:30 am-9:42 pm

2 stops28h 12m

$1,314

AspenSydney

ASE Aspen Pitkin County - SYD Sydney Kingsford Smith

ASESYD

Aspen Pitkin County

Wed 11/4

3:18 pm-9:05 am

2 stops23h 47m

Sydney Kingsford Smith

Wed 11/18

9:15 am-4:57 pm

2 stops25h 42m

$1,314

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 11/18

1:30 pm-10:35 am

2 stops27h 05m

Sydney Kingsford Smith

Sat 11/28

2:05 pm-1:59 am

2 stops29h 54m

$1,326

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Sat 11/21

2:55 pm-9:05 am

2 stops24h 10m

Sydney Kingsford Smith

Sat 12/5

11:50 am-2:25 pm

2 stops20h 35m

$1,413

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 10/6

5:57 pm-6:50 pm

2 stops31h 53m

Sydney Kingsford Smith

Tue 10/13

8:45 pm-11:32 am

2 stops31h 47m

$1,482

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Thu 8/27

8:22 am-8:40 am

2 stops32h 18m

Sydney Kingsford Smith

Sun 9/6

10:10 am-11:09 am

2 stops40h 59m

$1,484

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/9

8:22 am-8:40 am

2 stops32h 18m

Sydney Kingsford Smith

Mon 9/21

2:05 pm-10:35 am

2 stops36h 30m

$1,484

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Sun 11/8

7:35 am-7:00 am

1 stop29h 25m

Sydney Kingsford Smith

Thu 11/12

9:20 am-11:19 am

1 stop19h 59m

$1,499

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

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 round-trip price

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 $1,180). Flying from Colorado to Sydney in December is currently the most expensive (average of $1,797). 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 to fly round-trip from Colorado to Sydney?

Airfare is below average for this route at the moment.
Colorado to Sydney flights typically cost between $1,004 and $1,648 in September.
The cheapest round-trip price found within the last 5 days was $975 on Multiple Airlines (Sep 22-Sep 29).

How far ahead should I book a flight from Colorado to Sydney?

To ensure you get the cheapest price possible for a flight from Colorado to Sydney, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • What airport do you fly into for flights to Sydney from Colorado?

    Located just 4.6 mi from the city center, 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?

    There are many flights that can get you from Colorado to Sydney in 27h 05m. Fly via United Airlines or Air New Zealand to get the fastest option. There are 8348 mi between Colorado and Sydney. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado to Sydney one-way?

    $424 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $623 and $786, respectively.

  • What are the most popular routes from Colorado to Sydney?

    Most travelers choose Denver Intl - Sydney Kingsford Smith, Aspen Pitkin County - Sydney Kingsford Smith or Colorado Springs - Sydney Kingsford Smith when deciding on the best route from Colorado to Sydney.

  • 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 vacation 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 $1,180). Flying from Colorado to Sydney in December is currently the most expensive (average of $1,797). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Coogee
Manly

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Colorado to Sydney

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$1,309FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$684Average$781FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$844Average$1,595FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$849Average$1,365FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$853Average$1,457FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,029Average$1,386FlexibilityNo cancel feeOn-time67%
Air New ZealandCheapest$1,144Average$1,295FlexibilityNo cancel feeOn-time78%

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