How long does it take to fly to Sydney?

Flight times from Colorado to Sydney vary, but if you’re flying out of Denver and flying into Sydney (one of the most popular routes), then the duration is 19h 30m on average. Another popular route from Colorado to Sydney is flying from Colorado Springs to Sydney, which will take roughly 23h 30m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Sydney?

Qantas Airways, United Airlines and Air Canada are the top three most popular airlines that fly to Sydney from Colorado according to our data. Qantas Airways is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 8 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Qantas Airways, and Air New Zealand 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 are refreshed on a daily basis.

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

As of March 2026, there are 8 operators 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Sydney Kingsford Smith Airport.

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

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$405 Cheap Flights from Colorado to Sydney in 2026

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Find the cheapest flights from Colorado to Sydney

Round-trip

One-way

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Enter your travel dates to find the best prices.

8:41 am - 11:50 am

DEN

SYD

35h 09m

2 stops

1:20 pm - 8:06 pm

SYD

DEN

22h 46m

2 stops

$843Multiple Airlines

Tue, May 19 - Wed, Jun 3

7:00 am - 11:50 am

DEN

SYD

36h 50m

2 stops

6:00 am - 12:38 am

SYD

DEN

34h 38m

2 stops

$965Multiple Airlines

Fri, May 22 - Sun, May 31

7:05 pm - 7:20 am

DEN

SYD

20h 15m

1 stop

9:20 am - 5:00 pm

SYD

DEN

23h 40m

1 stop

$1,112Air Canada

Sun, Apr 26 - Sun, May 10

7:05 pm - 7:20 am

DEN

SYD

20h 15m

1 stop

9:20 am - 5:00 pm

SYD

DEN

23h 40m

1 stop

$1,113Air Canada

Sun, Apr 19 - Sun, May 3

3:25 pm - 6:55 am

COS

SYD

23h 30m

2 stops

9:30 am - 10:01 pm

SYD

COS

28h 31m

2 stops

$1,233United Airlines

Mon, May 4 - Mon, May 11

12:00 pm - 6:50 am

ASE

SYD

26h 50m

1 stop

9:15 am - 8:03 pm

SYD

ASE

26h 48m

1 stop

$1,308Delta

Thu, Aug 13 - Sat, Aug 22

12:00 pm - 6:50 am

ASE

SYD

26h 50m

1 stop

9:15 am - 8:03 pm

SYD

ASE

26h 48m

1 stop

$1,309Delta

Thu, Aug 13 - Sat, Aug 22

6:58 pm - 7:00 am

ASE

SYD

20h 02m

1 stop

9:30 am - 8:26 pm

SYD

ASE

26h 56m

1 stop

$1,328United Airlines

Thu, Aug 13 - Sat, Aug 22

5:13 pm - 6:55 am

COS

SYD

21h 42m

1 stop

12:00 pm - 4:44 pm

SYD

COS

20h 44m

1 stop

$1,842Qantas Airways

Tue, Aug 25 - Sun, Sep 6

5:13 pm - 6:55 am

COS

SYD

21h 42m

1 stop

9:10 am - 4:44 pm

SYD

COS

23h 34m

2 stops

$1,858Qantas Airways

Tue, Aug 25 - Sun, Sep 6

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets

Qantas Airways

Aug 25

COS5:13 pmColorado Springs

21h 42m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 6

SYD12:00 pmSydney Kingsford Smith

20h 44m

1 stop

COS4:44 pmColorado Springs

$1,842

Qantas Airways

Aug 25

COS5:13 pmColorado Springs

21h 42m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 6

SYD9:10 amSydney Kingsford Smith

23h 34m

2 stops

COS4:44 pmColorado Springs

$1,858

Qantas Airways

Aug 25

COS5:13 pmColorado Springs

21h 42m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 6

SYD12:00 pmSydney Kingsford Smith

20h 44m

1 stop

COS4:44 pmColorado Springs

$2,063

Air Canada flights from Colorado to Sydney

Our best Air Canada deals on Colorado to Sydney flight tickets

Air Canada

Apr 26

DEN7:05 pmDenver Intl

20h 15m

1 stop

SYD7:20 amSydney Kingsford Smith

May 10

SYD9:20 amSydney Kingsford Smith

23h 40m

1 stop

DEN5:00 pmDenver Intl

$1,112

Air Canada

Apr 19

DEN7:05 pmDenver Intl

20h 15m

1 stop

SYD7:20 amSydney Kingsford Smith

May 3

SYD9:20 amSydney Kingsford Smith

23h 40m

1 stop

DEN5:00 pmDenver Intl

$1,113

Air Canada

Apr 19

DEN7:05 pmDenver Intl

20h 15m

1 stop

SYD7:20 amSydney Kingsford Smith

May 3

SYD9:20 amSydney Kingsford Smith

23h 40m

1 stop

DEN5:00 pmDenver Intl

$1,118

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 5/19

8:41 am-11:50 am

2 stops35h 09m

Sydney Kingsford Smith

Wed 6/3

1:20 pm-8:06 pm

2 stops22h 46m

$843

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 5/22

7:00 am-11:50 am

2 stops36h 50m

Sydney Kingsford Smith

Sun 5/31

6:00 am-12:38 am

2 stops34h 38m

$965

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 4/26

7:05 pm-7:20 am

1 stop20h 15m

Sydney Kingsford Smith

Sun 5/10

9:20 am-5:00 pm

1 stop23h 40m

$1,112

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 4/19

7:05 pm-7:20 am

1 stop20h 15m

Sydney Kingsford Smith

Sun 5/3

9:20 am-5:00 pm

1 stop23h 40m

$1,113

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Mon 5/4

3:25 pm-6:55 am

2 stops23h 30m

Sydney Kingsford Smith

Mon 5/11

9:30 am-10:01 pm

2 stops28h 31m

$1,233

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

12:00 pm-6:50 am

1 stop26h 50m

Sydney Kingsford Smith

Sat 8/22

9:15 am-8:03 pm

1 stop26h 48m

$1,308

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

12:00 pm-6:50 am

1 stop26h 50m

Sydney Kingsford Smith

Sat 8/22

9:15 am-8:03 pm

1 stop26h 48m

$1,309

AspenSydney

ASE - SYD

ASESYD

Aspen Pitkin County

Thu 8/13

6:58 pm-7:00 am

1 stop20h 02m

Sydney Kingsford Smith

Sat 8/22

9:30 am-8:26 pm

1 stop26h 56m

$1,328

Quickest round-trip

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 8/25

5:13 pm-6:55 am

1 stop21h 42m

Sydney Kingsford Smith

Sun 9/6

12:00 pm-4:44 pm

1 stop20h 44m

$1,842

Colorado SpringsSydney

COS - SYD

COSSYD

Colorado Springs

Tue 8/25

5:13 pm-6:55 am

1 stop21h 42m

Sydney Kingsford Smith

Sun 9/6

9:10 am-4:44 pm

2 stops23h 34m

$1,858

Flights are sorted by cheapest round-trip 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

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Other information

What is the cheapest month to fly to Sydney?

In general, April is the cheapest month to fly from Colorado to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,165. If you are unable to visit Sydney during the month of April, then departing from Colorado during the month March is also very affordable. Most momondo users find prices during this month for around $1,221.

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 $1,362 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Colorado for as low as $1,148 on momondo.

Can stopping save me money on Colorado to Sydney flights?

You could potentially save up to 23% 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	19h 30m
Direct flights	None

The fastest flight from Colorado to Sydney takes 19h 30m

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 are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Sydney Kingsford Smith Airport?
As of March 2026, there are 8 operators 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable 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
Delta	PriceFrom $253	Free Cancellation	Rating 7.9 8,314 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.1 234 reviews	Search Fiji Airways flights
Alaska Airlines	PriceFrom $745	Free Cancellation	Rating 7.9 12,092 reviews	Search Alaska Airlines flights
Qantas Airways	PriceFrom $800	Free Cancellation	Rating 7.5 1,006 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights
American Airlines	PriceFrom $874	Free Cancellation	Rating 7.1 11,489 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,009	Free Cancellation	Rating 7.1 10,830 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,144	Free Cancellation	Rating 8.0 616 reviews	Search Air New Zealand flights

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Wollongong

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Coogee

Leura

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Cronulla

Charlestown

Terrigal

Swansea

Why use momondo?

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

Finding the right flight to Sydney from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

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

Yes. All flights to Sydney from Colorado on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Colorado and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Sydney from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Colorado to Sydney from $405

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Sydney departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Can stopping save me money on Colorado to Sydney flights?

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

What airlines fly to Sydney?

How long does it take to fly to Sydney?

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An easier way to manage your Sydney trip

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