What is the cheapest airline that flies from Colorado to Sydney Kingsford Smith?

United Airlines is the most popular carrier operating from Colorado to Sydney Kingsford Smith

How long does it take to fly to Sydney?

If you’re flying from a popular airport in Colorado, such as Denver or Aspen, and flying into Sydney, then you can expect flight times to average 19h 01m and 19h 48m, respectively.

When did momondo last update prices for flights from Colorado to Sydney Kingsford Smith Airport?

Prices for flights from Colorado to Sydney Kingsford Smith Airport were last updated today.

How many operators does momondo search for flights from Colorado to Sydney Kingsford Smith Airport?

As of September 2026, there is 1 operator available to choose from for flights from Colorado to Sydney Kingsford Smith Airport.

How old do you have to be to fly from Colorado to Sydney Kingsford Smith Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$703 Cheap Flights from Colorado to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Sydney

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:10 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

29h 25m2 stops Los Angeles Nadi

14:00 - 09:07SYD Sydney Kingsford Smith-DEN Denver Intl

37h 07m3 stops Nadi Los Angeles Phoenix Sky Harbor Intl

$1,431Multiple Airlines

Mon, 9 Nov - Mon, 16 Nov

14:14 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

28h 21m3 stops Phoenix Sky Harbor Intl Los Angeles Nadi

14:00 - 09:48SYD Sydney Kingsford Smith-DEN Denver Intl

37h 48m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,450Multiple Airlines

Mon, 9 Nov - Mon, 16 Nov

14:14 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

28h 21m3 stops Phoenix Sky Harbor Intl Los Angeles Nadi

14:00 - 09:48SYD Sydney Kingsford Smith-DEN Denver Intl

37h 48m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,458Multiple Airlines

Mon, 9 Nov - Mon, 16 Nov

13:10 - 08:35DEN Denver Intl-SYD Sydney Kingsford Smith

25h 25m2 stops Los Angeles Auckland Intl

11:50 - 17:35SYD Sydney Kingsford Smith-DEN Denver Intl

23h 45m2 stops Auckland Intl Los Angeles

$1,515Multiple Airlines

Mon, 2 Nov - Sat, 14 Nov

13:10 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

29h 25m2 stops Los Angeles Nadi

14:00 - 09:40SYD Sydney Kingsford Smith-DEN Denver Intl

37h 40m3 stops Nadi Los Angeles San Francisco

$1,537Multiple Airlines

Sun, 1 Nov - Sat, 7 Nov

09:10 - 09:00DEN Denver Intl-SYD Sydney Kingsford Smith

29h 50m1 stop Los Angeles

11:10 - 15:11SYD Sydney Kingsford Smith-DEN Denver Intl

22h 01m1 stop Los Angeles

$1,562Multiple Airlines

Tue, 3 Nov - Tue, 17 Nov

13:10 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

25h 20m1 stop Los Angeles

11:10 - 15:11SYD Sydney Kingsford Smith-DEN Denver Intl

21h 01m1 stop Los Angeles

$1,604Multiple Airlines

Tue, 20 Oct - Tue, 27 Oct

14:14 - 12:35DEN Denver Intl-SYD Sydney Kingsford Smith

28h 21m3 stops Phoenix Sky Harbor Intl Los Angeles Nadi

14:00 - 09:40SYD Sydney Kingsford Smith-DEN Denver Intl

37h 40m3 stops Nadi Los Angeles San Francisco

$1,611Multiple Airlines

Sun, 1 Nov - Sat, 7 Nov

19:34 - 06:25ASE Aspen Pitkin County-SYD Sydney Kingsford Smith

40h 51m1 stop Los Angeles

14:05 - 16:26SYD Sydney Kingsford Smith-ASE Aspen Pitkin County

20h 21m1 stop Dallas/Fort Worth

$1,942Qantas Airways

Sat, 13 Feb - Tue, 23 Feb

18:46 - 09:00DEN Denver Intl-SYD Sydney Kingsford Smith

20h 14m1 stop Los Angeles

11:10 - 11:45SYD Sydney Kingsford Smith-DEN Denver Intl

18h 35m1 stop Los Angeles

$2,333Qantas Airways

Tue, 17 Nov - Tue, 1 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:10 - 11:50DEN Denver Intl-SYD Sydney Kingsford Smith

30h 40m2 stops Los Angeles Nadi

14:00 - 23:49SYD Sydney Kingsford Smith-DEN Denver Intl

27h 49m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,486Multiple Airlines

Sat, 26 Sep - Tue, 3 Nov

13:18 - 11:50DEN Denver Intl-SYD Sydney Kingsford Smith

30h 32m3 stops Phoenix Sky Harbor Intl Los Angeles Nadi

14:00 - 23:49SYD Sydney Kingsford Smith-DEN Denver Intl

27h 49m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,527Multiple Airlines

Sat, 26 Sep - Tue, 3 Nov

13:10 - 11:50DEN Denver Intl-SYD Sydney Kingsford Smith

30h 40m2 stops Los Angeles Nadi

14:15 - 09:10SYD Sydney Kingsford Smith-DEN Denver Intl

35h 55m3 stops Nadi Los Angeles Phoenix Sky Harbor Intl

$1,560Multiple Airlines

Sat, 26 Sep - Fri, 16 Oct

13:18 - 11:50DEN Denver Intl-SYD Sydney Kingsford Smith

30h 32m3 stops Phoenix Sky Harbor Intl Los Angeles Nadi

14:15 - 09:10SYD Sydney Kingsford Smith-DEN Denver Intl

35h 55m3 stops Nadi Los Angeles Phoenix Sky Harbor Intl

$1,608Multiple Airlines

Sat, 26 Sep - Fri, 16 Oct

13:10 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

26h 20m1 stop Los Angeles

18:50 - 23:43SYD Sydney Kingsford Smith-DEN Denver Intl

21h 53m2 stops Los Angeles Las Vegas Harry Reid Intl

$1,853Multiple Airlines

Tue, 29 Sep - Tue, 13 Oct

13:10 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

11:10 - 17:35SYD Sydney Kingsford Smith-DEN Denver Intl

24h 25m1 stop Los Angeles

$1,870Multiple Airlines

Sat, 26 Sep - Tue, 3 Nov

06:40 - 07:30DEN Denver Intl-SYD Sydney Kingsford Smith

32h 50m2 stops Orlando Los Angeles

18:50 - 23:43SYD Sydney Kingsford Smith-DEN Denver Intl

21h 53m2 stops Los Angeles Las Vegas Harry Reid Intl

$1,902Multiple Airlines

Tue, 29 Sep - Tue, 13 Oct

13:10 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

10:10 - 17:46SYD Sydney Kingsford Smith-DEN Denver Intl

24h 36m2 stops Los Angeles Las Vegas Harry Reid Intl

$2,023Multiple Airlines

Sat, 26 Sep - Fri, 16 Oct

11:06 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

27h 59m1 stop Los Angeles

10:10 - 18:11SYD Sydney Kingsford Smith-DEN Denver Intl

25h 01m1 stop Los Angeles

$12,918Qantas Airways

Tue, 29 Sep - Wed, 14 Oct

13:17 - 07:05DEN Denver Intl-SYD Sydney Kingsford Smith

25h 48m2 stops Dallas/Fort Worth Los Angeles

10:10 - 18:11SYD Sydney Kingsford Smith-DEN Denver Intl

25h 01m1 stop Los Angeles

$12,925Qantas Airways

Wed, 30 Sep - Wed, 14 Oct

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Air New Zealand flights from Colorado to Sydney

Our best Air New Zealand deals on Colorado to Sydney flight tickets

Air New Zealand

1 Feb

DEN13:29Denver Intl

27h 06m

2 stops

SYD10:35Sydney Kingsford Smith

17 Feb

SYD14:05Sydney Kingsford Smith

25h 56m

2 stops

DEN22:01Denver Intl

$1,620

Air New Zealand

23 Feb

DEN05:00Denver Intl

33h 35m

2 stops

SYD08:35Sydney Kingsford Smith

16 Mar

SYD19:25Sydney Kingsford Smith

39h 25m

2 stops

DEN17:50Denver Intl

$1,647

Air New Zealand

26 Oct

ASE14:17Aspen Pitkin County

25h 18m

2 stops

SYD08:35Sydney Kingsford Smith

2 Nov

SYD09:55Sydney Kingsford Smith

45h 41m

2 stops

ASE13:36Aspen Pitkin County

$1,653

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets

Qantas Airways

13 Feb

ASE19:34Aspen Pitkin County

40h 51m

1 stop

SYD06:25Sydney Kingsford Smith

23 Feb

SYD14:05Sydney Kingsford Smith

20h 21m

1 stop

ASE16:26Aspen Pitkin County

$1,942

Qantas Airways

18 Nov

COS10:20Colorado Springs

28h 40m

2 stops

SYD09:00Sydney Kingsford Smith

9 Dec

SYD14:05Sydney Kingsford Smith

20h 42m

1 stop

COS16:47Colorado Springs

$2,601

Qantas Airways

20 Nov

COS12:56Colorado Springs

23h 59m

1 stop

SYD06:55Sydney Kingsford Smith

6 Dec

SYD19:15Sydney Kingsford Smith

34h 55m

2 stops

COS12:10Colorado Springs

$2,882

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 9/11

13:10-12:35

2 stops29h 25m

Sydney Kingsford Smith

Mon 16/11

14:00-09:07

3 stops37h 07m

$1,431

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 9/11

14:14-12:35

3 stops28h 21m

Sydney Kingsford Smith

Mon 16/11

14:00-09:48

3 stops37h 48m

$1,450

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 9/11

14:14-12:35

3 stops28h 21m

Sydney Kingsford Smith

Mon 16/11

14:00-09:48

3 stops37h 48m

$1,458

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/11

13:10-08:35

2 stops25h 25m

Sydney Kingsford Smith

Sat 14/11

11:50-17:35

2 stops23h 45m

$1,515

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 1/11

13:10-12:35

2 stops29h 25m

Sydney Kingsford Smith

Sat 7/11

14:00-09:40

3 stops37h 40m

$1,537

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 3/11

09:10-09:00

1 stop29h 50m

Sydney Kingsford Smith

Tue 17/11

11:10-15:11

1 stop22h 01m

$1,562

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 20/10

13:10-07:30

1 stop25h 20m

Sydney Kingsford Smith

Tue 27/10

11:10-15:11

1 stop21h 01m

$1,604

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 1/11

14:14-12:35

3 stops28h 21m

Sydney Kingsford Smith

Sat 7/11

14:00-09:40

3 stops37h 40m

$1,611

AspenSydney

ASE Aspen Pitkin County - SYD Sydney Kingsford Smith

ASESYD

Aspen Pitkin County

Sat 13/2

19:34-06:25

1 stop40h 51m

Sydney Kingsford Smith

Tue 23/2

14:05-16:26

1 stop20h 21m

$1,942

Fastest return journey

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 17/11

18:46-09:00

1 stop20h 14m

Sydney Kingsford Smith

Tue 1/12

11:10-11:45

1 stop18h 35m

$2,333

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Sydney?

The month of May is, on average, the cheapest month to fly to Sydney from Colorado, with most prices found around $1,680. If you aren’t able to travel to Sydney during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,684.

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

You are more likely to see cheaper flights to Sydney from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,946 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Colorado for as low as $1,510 on momondo.

Cheap Colorado to Sydney flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Sydney

Best price found	$703
Fastest flight time	19h 01m
Direct flights	None

The best one-way flight to Sydney from Colorado in the past 72 hours is $703. The best return flight deal from Colorado to Sydney found on momondo in the last 72 hours is $1,431.

The fastest flight from Colorado to Sydney takes 19h 01m

There are no direct flights from Colorado to Sydney. There are no popular flight routes from Colorado to Sydney.

Search flight deals

Frequently asked questions about flying from Colorado to Sydney

When did momondo last update prices for flights from Colorado to Sydney Kingsford Smith Airport?
Prices for flights from Colorado to Sydney Kingsford Smith Airport were last updated today.
How many operators does momondo search for flights from Colorado to Sydney Kingsford Smith Airport?
As of September 2026, there is 1 operator available to choose from for flights from Colorado to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Colorado to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Sydney

Compare and see reviews for airlines that fly from Colorado to Sydney with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $1,285	Free cancellation	Rating 7.5 1,103 reviews		Search Qantas Airways flights

Parramatta

Terrigal

Wollongong

Katoomba

Penrith

Coogee

Lithgow

Manly

Cronulla

Randwick

Leura

Bondi Beach

Charlestown

Swansea

Newport

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Sydney?

It is quick and easy to find Colorado to Sydney flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sydney that suits you.

Can I find flights from Colorado to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Colorado with this policy.

How can momondo help me find flights from Colorado to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Colorado.

I’m not ready to book a flight from Colorado to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Colorado to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.