What airlines fly to Sydney?

Qantas Airways, Air Canada and United Airlines 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 34% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 7 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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 22h 58m on average. Another popular route from Colorado to Sydney is flying from Aspen to Sydney, which will take roughly 24h 26m. Keep in mind that layovers or delays could extend your travel time.

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

Alaska Airlines, Turkish Airlines, and Delta 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 November 2026, there are 7 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.

$518 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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:22 pm - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 03m1 stop Los Angeles

2:00 pm - 8:19 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 19m2 stops Nadi Los Angeles

$932Multiple Airlines

Sat, Feb 20 - Wed, Feb 24

2:22 pm - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 03m1 stop Los Angeles

2:00 pm - 8:19 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 19m2 stops Nadi Los Angeles

$949Multiple Airlines

Sat, Feb 20 - Wed, Feb 24

11:31 am - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 04m2 stops Los Angeles Auckland Intl

9:55 am - 7:45 pmSYD Sydney Kingsford Smith-DEN Denver Intl

27h 50m2 stops Auckland Intl Los Angeles

$1,193Air New Zealand

Wed, Feb 10 - Sun, Feb 21

3:50 pm - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

24h 45m2 stops Los Angeles Auckland Intl

11:50 am - 6:06 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 16m2 stops Auckland Intl Los Angeles

$1,197Air New Zealand

Mon, Feb 22 - Mon, Mar 1

1:50 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 10m1 stop Los Angeles

7:05 am - 1:11 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 06m2 stops Auckland Intl Los Angeles

$1,365Qantas Airways

Mon, Feb 1 - Wed, Feb 17

3:00 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 30m2 stops Salt Lake City Los Angeles

10:40 am - 7:35 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 55m2 stops Los Angeles Salt Lake City

$1,577Delta

Mon, Jan 25 - Wed, Feb 10

12:00 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 30m1 stop Los Angeles

10:40 am - 3:17 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 37m2 stops Los Angeles Salt Lake City

$1,577Delta

Mon, Jan 25 - Tue, Feb 9

12:04 pm - 7:00 amCOS Colorado Springs-SYD Sydney Kingsford Smith

24h 56m1 stop Houston George Bush Intcntl

9:15 am - 11:23 amSYD Sydney Kingsford Smith-COS Colorado Springs

20h 08m1 stop Houston George Bush Intcntl

$1,587United Airlines

Wed, Feb 24 - Sun, Feb 28

2:39 pm - 9:05 amASE Aspen Pitkin County-SYD Sydney Kingsford Smith

24h 26m1 stop Los Angeles

1:20 pm - 1:58 pmSYD Sydney Kingsford Smith-ASE Aspen Pitkin County

18h 38m1 stop San Francisco

$1,587United Airlines

Wed, Feb 3 - Sun, Feb 7

6:46 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 14m1 stop Los Angeles

11:20 am - 1:11 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 51m1 stop Los Angeles

$1,633Qantas Airways

Mon, Feb 1 - Wed, Feb 17

Cheap last minute flights

Enter your travel dates to find the best prices.

3:37 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 58m2 stops San Francisco Auckland Intl

9:55 am - 4:12 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 17m2 stops Auckland Intl Los Angeles

$1,247Air New Zealand

Fri, Nov 13 - Wed, Nov 18

7:09 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

43h 26m2 stops Los Angeles Auckland Intl

7:25 pm - 5:56 pmSYD Sydney Kingsford Smith-DEN Denver Intl

40h 31m2 stops Auckland Intl Los Angeles

$1,276Air New Zealand

Tue, Nov 10 - Tue, Nov 17

12:54 pm - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 31m1 stop Los Angeles

11:15 am - 5:35 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 20m1 stop Los Angeles

$1,475Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

7:30 am - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

28h 55m2 stops Las Vegas Harry Reid Intl Ontario

6:10 am - 8:16 pmSYD Sydney Kingsford Smith-DEN Denver Intl

32h 06m3 stops Coolangatta Gold Coast Nadi Los Angeles

$1,531Multiple Airlines

Sun, Nov 15 - Mon, Nov 23

12:52 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 38m1 stop Los Angeles

10:40 am - 12:01 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 21m1 stop Los Angeles

$1,599Delta

Sun, Nov 15 - Mon, Nov 30

12:52 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 38m1 stop Los Angeles

10:40 am - 7:04 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 24m1 stop Los Angeles

$1,599Delta

Sun, Nov 15 - Mon, Nov 23

2:17 pm - 9:05 amASE Aspen Pitkin County-SYD Sydney Kingsford Smith

24h 48m1 stop Los Angeles

11:20 am - 1:36 pmSYD Sydney Kingsford Smith-ASE Aspen Pitkin County

20h 16m1 stop Los Angeles

$2,349United Airlines

Thu, Nov 12 - Mon, Nov 16

3:18 pm - 9:20 amASE Aspen Pitkin County-SYD Sydney Kingsford Smith

24h 02m2 stops Denver Intl San Francisco

11:20 am - 6:27 pmSYD Sydney Kingsford Smith-ASE Aspen Pitkin County

25h 07m2 stops Los Angeles Denver Intl

$2,353United Airlines

Thu, Nov 12 - Mon, Nov 16

6:46 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 14m1 stop Los Angeles

11:10 am - 11:41 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 31m1 stop Los Angeles

$3,845Qantas Airways

Sat, Nov 14 - Sun, Nov 29

12:17 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 43m1 stop Los Angeles

11:10 am - 6:21 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 11m1 stop Los Angeles

$3,978Qantas Airways

Sun, Nov 15 - Mon, Nov 23

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air New Zealand flights from Colorado to Sydney

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

Air New Zealand

Nov 13

DEN3:37 pmDenver Intl

22h 58m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 18

SYD9:55 amSydney Kingsford Smith

24h 17m

2 stops

DEN4:12 pmDenver Intl

$1,247

Air New Zealand

Nov 10

DEN7:09 pmDenver Intl

43h 26m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 17

SYD7:25 pmSydney Kingsford Smith

40h 31m

2 stops

DEN5:56 pmDenver Intl

$1,276

Air New Zealand

Nov 14

DEN9:50 amDenver Intl

28h 45m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 21

SYD11:50 amSydney Kingsford Smith

27h 37m

2 stops

DEN9:27 pmDenver Intl

$1,361

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets

Qantas Airways

Feb 2

DRO1:21 pmDurango La Plata County

23h 34m

1 stop

SYD6:55 amSydney Kingsford Smith

Feb 16

SYD2:05 pmSydney Kingsford Smith

20h 26m

1 stop

DRO4:31 pmDurango La Plata County

$1,494

Qantas Airways

Feb 2

DRO3:50 pmDurango La Plata County

21h 05m

1 stop

SYD6:55 amSydney Kingsford Smith

Feb 16

SYD8:45 amSydney Kingsford Smith

25h 46m

2 stops

DRO4:31 pmDurango La Plata County

$1,730

Qantas Airways

Mar 13

DRO12:43 pmDurango La Plata County

24h 12m

1 stop

SYD6:55 amSydney Kingsford Smith

Mar 24

SYD9:50 pmSydney Kingsford Smith

35h 41m

2 stops

DRO4:31 pmDurango La Plata County

$1,940

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 2/20

2:22 pm-6:25 am

1 stop22h 03m

Sydney Kingsford Smith

Wed 2/24

2:00 pm-8:19 pm

2 stops24h 19m

$932

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 2/20

2:22 pm-6:25 am

1 stop22h 03m

Sydney Kingsford Smith

Wed 2/24

2:00 pm-8:19 pm

2 stops24h 19m

$949

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 2/10

11:31 am-8:35 am

2 stops27h 04m

Sydney Kingsford Smith

Sun 2/21

9:55 am-7:45 pm

2 stops27h 50m

$1,193

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/22

3:50 pm-10:35 am

2 stops24h 45m

Sydney Kingsford Smith

Mon 3/1

11:50 am-6:06 pm

2 stops24h 16m

$1,197

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

1:50 pm-9:00 am

1 stop25h 10m

Sydney Kingsford Smith

Wed 2/17

7:05 am-1:11 pm

2 stops24h 06m

$1,365

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 1/25

3:00 pm-8:30 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 2/10

10:40 am-7:35 pm

2 stops26h 55m

$1,577

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 1/25

12:00 pm-8:30 am

1 stop26h 30m

Sydney Kingsford Smith

Tue 2/9

10:40 am-3:17 pm

2 stops22h 37m

$1,577

Colorado SpringsSydney

COS Colorado Springs - SYD Sydney Kingsford Smith

COSSYD

Colorado Springs

Wed 2/24

12:04 pm-7:00 am

1 stop24h 56m

Sydney Kingsford Smith

Sun 2/28

9:15 am-11:23 am

1 stop20h 08m

$1,587

AspenSydney

ASE Aspen Pitkin County - SYD Sydney Kingsford Smith

ASESYD

Aspen Pitkin County

Wed 2/3

2:39 pm-9:05 am

1 stop24h 26m

Sydney Kingsford Smith

Sun 2/7

1:20 pm-1:58 pm

1 stop18h 38m

$1,587

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

6:46 pm-9:00 am

1 stop20h 14m

Sydney Kingsford Smith

Wed 2/17

11:20 am-1:11 pm

1 stop19h 51m

$1,633

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

Airlines

Other information

What is the cheapest month to fly to Sydney?

In general, September 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 $1,180. If you are unable to visit Sydney during the month of September, then departing from Colorado during the month May is also very affordable. Most momondo users find prices during this month for around $1,180.

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 $1,406 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 $1,060 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	$518
Fastest flight time	22h 58m
Direct flights	None

The best one-way flight to Sydney from Colorado in the past 72 hours is $518. The best round-trip flight deal from Colorado to Sydney found on momondo in the last 72 hours is $932.

The fastest flight from Colorado to Sydney takes 22h 58m

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 are refreshed on a daily basis.
How many operators does momondo search for flights from Colorado to Sydney Kingsford Smith Airport?
As of November 2026, there are 7 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 $195	Free Cancellation	Rating 7.8 8,700 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.0 262 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $895	Free Cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $973	Free Cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $1,049	Free Cancellation	Rating 7.1 11,880 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,071	Free Cancellation	Rating 8.0 683 reviews	Search Air New Zealand flights
United Airlines	PriceFrom $1,186	Free Cancellation	Rating 7.3 10,474 reviews	Search United Airlines flights

Parramatta

Bondi Beach

Wollongong

Penrith

Katoomba

Coogee

Leura

Manly

Terrigal

Cronulla

Lithgow

Charlestown

Randwick

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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 12/9

Wed 12/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Colorado

Complete your trip

Feeling lucky

Cheap flights from Colorado to Sydney from $518

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 3/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Colorado to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air New Zealand flights from Colorado to Sydney

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

Qantas Airways flights from Colorado to Sydney

Our best Qantas Airways deals on Colorado to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Sydney that are best for you.

See travel insights to Sydney from

How to get the cheapest flight ticket from Colorado to Sydney

What is the cheapest month to fly to Sydney?

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

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?

Cheap Colorado to Sydney flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado to Sydney

Best airlines flying from Colorado to Sydney

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

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Colorado

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year