How long does it take to fly to Sydney?

If you’re flying from a popular airport in Colorado, such as Denver or Colorado Springs, and flying into Sydney, then you can expect flight times to average 21h 35m and 21h 48m, respectively.

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

United Airlines, Delta, and Qantas Airways are the most popular carriers operating from Colorado to Sydney Kingsford Smith

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 March 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.

$588 Cheap Flights from Colorado to Sydney in 2026

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Find the cheapest flights from Colorado to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:00 - 11:50

DEN

SYD

36h 50m

2 stops

06:00 - 00:38

SYD

DEN

34h 38m

2 stops

$1,255Multiple Airlines

Thu, 7 May - Thu, 14 May

06:00 - 22:10

DEN

SYD

48h 10m

2 stops

06:00 - 00:38

SYD

DEN

34h 38m

2 stops

$1,266Multiple Airlines

Mon, 4 May - Fri, 8 May

19:05 - 07:20

DEN

SYD

20h 15m

1 stop

09:20 - 18:07

SYD

DEN

24h 47m

2 stops

$1,567Air Canada

Sun, 26 Apr - Sun, 10 May

19:05 - 07:20

DEN

SYD

20h 15m

1 stop

09:20 - 17:00

SYD

DEN

23h 40m

1 stop

$1,593Air Canada

Sun, 26 Apr - Sun, 10 May

12:00 - 06:50

ASE

SYD

26h 50m

1 stop

09:15 - 20:03

SYD

ASE

26h 48m

1 stop

$1,875Delta

Thu, 13 Aug - Sat, 22 Aug

12:00 - 06:50

ASE

SYD

26h 50m

1 stop

09:15 - 20:03

SYD

ASE

26h 48m

1 stop

$1,877Delta

Thu, 13 Aug - Sat, 22 Aug

14:17 - 07:00

ASE

SYD

24h 43m

2 stops

10:20 - 17:18

SYD

ASE

22h 58m

2 stops

$1,911United Airlines

Thu, 13 Aug - Sat, 22 Aug

15:07 - 07:00

COS

SYD

23h 53m

2 stops

09:30 - 17:51

SYD

COS

24h 21m

2 stops

$2,012United Airlines

Sat, 19 Sep - Wed, 23 Sep

17:13 - 06:55

COS

SYD

21h 42m

1 stop

12:00 - 16:44

SYD

COS

20h 44m

1 stop

$2,641Qantas Airways

Tue, 25 Aug - Sun, 6 Sep

17:13 - 06:55

COS

SYD

21h 42m

1 stop

09:10 - 16:44

SYD

COS

23h 34m

2 stops

$2,664Qantas Airways

Tue, 25 Aug - Sun, 6 Sep

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets

Qantas Airways

25 Aug

COS17:13Colorado Springs

21h 42m

1 stop

SYD06:55Sydney Kingsford Smith

6 Sept

SYD12:00Sydney Kingsford Smith

20h 44m

1 stop

COS16:44Colorado Springs

$2,641

Qantas Airways

25 Aug

COS17:13Colorado Springs

21h 42m

1 stop

SYD06:55Sydney Kingsford Smith

6 Sept

SYD09:10Sydney Kingsford Smith

23h 34m

2 stops

COS16:44Colorado Springs

$2,664

Qantas Airways

25 Aug

COS17:13Colorado Springs

21h 42m

1 stop

SYD06:55Sydney Kingsford Smith

6 Sept

SYD12:00Sydney Kingsford Smith

20h 44m

1 stop

COS16:44Colorado Springs

$2,959

United Airlines flights from Colorado to Sydney

Our best United Airlines deals on Colorado to Sydney flight tickets

United Airlines

13 Aug

ASE18:58Aspen Pitkin County

20h 02m

1 stop

SYD07:00Sydney Kingsford Smith

22 Aug

SYD09:30Sydney Kingsford Smith

21h 38m

2 stops

ASE15:08Aspen Pitkin County

$1,911

United Airlines

19 Sept

COS15:07Colorado Springs

23h 53m

2 stops

SYD07:00Sydney Kingsford Smith

23 Sept

SYD09:30Sydney Kingsford Smith

24h 21m

2 stops

COS17:51Colorado Springs

$2,012

United Airlines

13 Aug

ASE09:40Aspen Pitkin County

29h 15m

1 stop

SYD06:55Sydney Kingsford Smith

22 Aug

SYD09:30Sydney Kingsford Smith

26h 56m

1 stop

ASE20:26Aspen Pitkin County

$2,017

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/5

07:00-11:50

2 stops36h 50m

Sydney Kingsford Smith

Thu 14/5

06:00-00:38

2 stops34h 38m

$1,255

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 4/5

06:00-22:10

2 stops48h 10m

Sydney Kingsford Smith

Fri 8/5

06:00-00:38

2 stops34h 38m

$1,266

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 26/4

19:05-07:20

1 stop20h 15m

Sydney Kingsford Smith

Sun 10/5

09:20-18:07

2 stops24h 47m

$1,567

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 26/4

19:05-07:20

1 stop20h 15m

Sydney Kingsford Smith

Sun 10/5

09:20-17:00

1 stop23h 40m

$1,593

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

$1,875

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

$1,877

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 13/8

14:17-07:00

2 stops24h 43m

Sydney Kingsford Smith

Sat 22/8

10:20-17:18

2 stops22h 58m

$1,911

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Sat 19/9

15:07-07:00

2 stops23h 53m

Sydney Kingsford Smith

Wed 23/9

09:30-17:51

2 stops24h 21m

$2,012

Fastest return journey

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 25/8

17:13-06:55

1 stop21h 42m

Sydney Kingsford Smith

Sun 6/9

12:00-16:44

1 stop20h 44m

$2,641

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 25/8

17:13-06:55

1 stop21h 42m

Sydney Kingsford Smith

Sun 6/9

09:10-16:44

2 stops23h 34m

$2,664

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 April is, on average, the cheapest month to fly to Sydney from Colorado, with most prices found around $1,670. If you aren’t able to travel to Sydney during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,751.

How far in advance should I book a flight 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 $1,952 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 $1,646 on momondo.

Can stopping save me money on Colorado to Sydney flights?

You could potentially save up to 29% on your flight if you consider stops on a Colorado to Sydney flight.

Cheap Colorado to Sydney flight deals and tips

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

Fastest flight time	21h 35m
Direct flights	None

The fastest flight from Colorado to Sydney takes 21h 35m

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

Search flight deals

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 March 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 $1,294	Free cancellation	Rating 7.5 1,009 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

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.