What airlines fly to Sydney?

Qantas Airways, Air Canada and United Airlines are the top three most popular airlines that fly to Sydney from Denver according to our data. Qantas Airways is the first choice among our users, with 35% 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.

Which airport is the most popular layover for flights between Denver and Sydney?

Los Angeles (LAX) was the most common stop: 89% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Denver to Sydney?

San Francisco (SFO) has the shortest average layover time for this route: 1h 33m.

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

Alaska Airlines and Turkish Airlines are the most popular carriers operating from Denver Intl to Sydney Kingsford Smith

Which layover airport offers the lowest fares from Denver to Sydney?

Flights via San Francisco (SFO) offer the lowest average round-trip price of $1,804.

Which layover airport has the shortest travel time from Denver to Sydney?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 19h 34m.

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

Prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport are updated daily.

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

As of November 2026, there are 7 operators available to choose from for flights from Denver Intl Airport to Sydney Kingsford Smith Airport.

How old do you have to be to fly from Denver Intl Airport 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 Denver Intl Airport 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 license 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.

$518 Cheap Flights from Denver to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Sydney

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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

2:05 pm - 6:06 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 01m2 stops Auckland Intl Los Angeles

$1,199Air New Zealand

Mon, Feb 1 - Wed, Feb 17

3:55 pm - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

24h 40m2 stops Los Angeles Auckland Intl

11:50 am - 6:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 20m2 stops Auckland Intl San Francisco

$1,200Air New Zealand

Mon, Feb 1 - Wed, Feb 17

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

2:00 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 50m1 stop Los Angeles

10:40 am - 11:29 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 49m1 stop Los Angeles

$1,599Delta

Tue, Mar 2 - Mon, Mar 8

7:15 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Los Angeles

9:15 am - 11:29 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 14m1 stop Los Angeles

$1,599Delta

Sun, Apr 4 - Wed, Apr 21

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

5:00 am - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 00m1 stop Houston George Bush Intcntl

11:20 am - 4:17 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 57m1 stop Los Angeles

$1,748United Airlines

Mon, Feb 1 - Mon, Feb 22

1:28 pm - 9:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 52m1 stop San Francisco

11:20 am - 6:06 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 46m1 stop Los Angeles

$1,748United Airlines

Sun, Jan 31 - Mon, Feb 22

Cheap last minute flights

Enter your travel dates to find the best prices.

9:50 am - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

28h 45m2 stops Los Angeles Auckland Intl

11:20 am - 4:12 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 52m1 stop Los Angeles

$1,591Air New Zealand

Fri, Nov 13 - Sun, Nov 15

9:50 am - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

28h 45m2 stops San Francisco Auckland Intl

11:50 am - 5:56 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 06m2 stops Auckland Intl Los Angeles

$1,634Air New Zealand

Fri, Nov 13 - Sun, Nov 15

2:14 pm - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 11m2 stops Phoenix Sky Harbor Intl Los Angeles

8:35 am - 11:53 pmSYD Sydney Kingsford Smith-DEN Denver Intl

33h 18m3 stops Brisbane Los Angeles Phoenix Sky Harbor Intl

$1,964Multiple Airlines

Fri, Nov 13 - Sun, Nov 15

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

23h 31m1 stop Los Angeles

11:15 am - 3:11 pmSYD Sydney Kingsford Smith-DEN Denver Intl

21h 56m1 stop Los Angeles

$2,038Multiple Airlines

Fri, Nov 13 - Sun, Nov 15

5:25 pm - 9:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

21h 55m1 stop San Francisco

11:50 am - 2:24 pmSYD Sydney Kingsford Smith-DEN Denver Intl

20h 34m1 stop San Francisco

$2,299United Airlines

Mon, Nov 9 - Fri, Nov 13

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

20h 14m1 stop Los Angeles

11:10 am - 11:46 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 36m1 stop Los Angeles

$2,347Qantas Airways

Mon, Nov 9 - Fri, Nov 13

5:25 pm - 9:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

21h 55m1 stop San Francisco

11:50 am - 2:24 pmSYD Sydney Kingsford Smith-DEN Denver Intl

20h 34m1 stop San Francisco

$2,348United Airlines

Mon, Nov 9 - Fri, Nov 13

6:46 pm - 3:30 pmDEN Denver Intl-SYD Sydney Kingsford Smith

26h 44m2 stops Los Angeles Melbourne

11:10 am - 6:15 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 05m1 stop Los Angeles

$2,460Qantas Airways

Mon, Nov 9 - Fri, Nov 13

4:05 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 30m2 stops Los Angeles Auckland Intl

7:25 pm - 4:12 pmSYD Sydney Kingsford Smith-DEN Denver Intl

38h 47m2 stops Auckland Intl Los Angeles

$3,242Air New Zealand

Sat, Nov 14 - Sun, Nov 29

9:35 am - 9:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

30h 00m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl

11:20 am - 6:03 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 43m2 stops Vancouver Intl Edmonton

$4,916Air Canada

Sat, Nov 14 - Sun, Nov 29

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Air New Zealand flights from Denver to Sydney

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

Air New Zealand

Feb 1

DEN11:31 amDenver Intl

27h 04m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 17

SYD2:05 pmSydney Kingsford Smith

22h 01m

2 stops

DEN6:06 pmDenver Intl

$1,200

Air New Zealand

Jan 27

DEN1:25 pmDenver Intl

27h 10m

2 stops

SYD10:35 amSydney Kingsford Smith

Jan 31

SYD11:50 amSydney Kingsford Smith

24h 07m

2 stops

DEN5:57 pmDenver Intl

$1,201

Air New Zealand

Jan 17

DEN8:33 pmDenver Intl

44h 02m

2 stops

SYD10:35 amSydney Kingsford Smith

Feb 6

SYD7:25 pmSydney Kingsford Smith

40h 49m

2 stops

DEN6:14 pmDenver Intl

$1,227

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets

Delta

Nov 15

DEN12:52 pmDenver Intl

25h 38m

1 stop

SYD8:30 amSydney Kingsford Smith

Nov 30

SYD10:40 amSydney Kingsford Smith

19h 21m

1 stop

DEN12:01 pmDenver Intl

$1,599

Delta

Nov 18

DEN7:56 pmDenver Intl

18h 34m

1 stop

SYD8:30 amSydney Kingsford Smith

Nov 25

SYD10:40 amSydney Kingsford Smith

31h 07m

2 stops

DEN11:47 pmDenver Intl

$1,603

Delta

Nov 15

DEN12:52 pmDenver Intl

25h 38m

1 stop

SYD8:30 amSydney Kingsford Smith

Nov 30

SYD10:40 amSydney Kingsford Smith

19h 21m

1 stop

DEN12:01 pmDenver Intl

$1,648

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

Mon 2/1

11:31 am-8:35 am

2 stops27h 04m

Sydney Kingsford Smith

Wed 2/17

2:05 pm-6:06 pm

2 stops22h 01m

$1,199

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

3:55 pm-10:35 am

2 stops24h 40m

Sydney Kingsford Smith

Wed 2/17

11:50 am-6:10 pm

2 stops24h 20m

$1,200

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

Tue 3/2

2:00 pm-6:50 am

1 stop22h 50m

Sydney Kingsford Smith

Mon 3/8

10:40 am-11:29 am

1 stop18h 49m

$1,599

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 4/4

7:15 pm-6:50 am

1 stop19h 35m

Sydney Kingsford Smith

Wed 4/21

9:15 am-11:29 am

1 stop18h 14m

$1,599

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

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

5:00 am-7:00 am

1 stop32h 00m

Sydney Kingsford Smith

Mon 2/22

11:20 am-4:17 pm

1 stop22h 57m

$1,748

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 1/31

1:28 pm-9:20 am

1 stop25h 52m

Sydney Kingsford Smith

Mon 2/22

11:20 am-6:06 pm

1 stop24h 46m

$1,748

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 Denver 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

Layovers

What is the typical price of a round-trip flight between Denver and Sydney?

Prices are currently low for flights on this route.

Typical prices usually range from $1,286 to $1,760.
The lowest price recently found on this route was $932.

What is the cheapest month to fly to Sydney?

In general, September is the cheapest month to fly from Denver 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 Denver 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 Denver to Sydney?

You are more likely to see cheaper flights to Sydney from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Denver for as low as $1,060 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 11% on your flight if you consider stops on a Denver to Sydney flight.

How have Denver to Sydney flight prices changed over time?

As of November 2026, prices for Denver to Sydney flights are approximately 336% more expensive when compared to flights at the same time last year.

When to book flights from Denver to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Denver to Sydney (DEN to SYD) flight deals and tips

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

Best Price Found	$518
Fastest flight time	19h 20m
Direct flights	None

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

The fastest flight from Denver to Sydney takes 19h 20m

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

Search flight deals

Frequently asked questions about flying from Denver to Sydney

How far is Denver Intl to Sydney Kingsford Smith by plane?
Denver Intl and Sydney Kingsford Smith are 8325.4 mi apart from one another. A reasonable flight in good conditions will take 19h 20m.
When did momondo last update prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Denver Intl Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?
As of November 2026, there are 7 operators available to choose from for flights from Denver Intl Airport to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Denver Intl Airport 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 Denver Intl Airport 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 license 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.
What is the most popular airline from Denver to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Denver to Sydney is Qantas Airways (27% of total bookings). The next most popular airlines are Air Canada (22%), United Airlines (18%), and Delta (12%).

Best airlines flying from Denver to Sydney

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $195	Free Cancellation	Rating 7.8 8,702 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 12,234 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 11,875 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 $1,210	Free Cancellation	Rating 7.3 10,475 reviews	Search United Airlines flights

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Coogee

Leura

Terrigal

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Randwick

Manly

Lithgow

Charlestown

Swansea

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from Denver.

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

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

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

Once you have performed a search for Denver to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Denver to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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.

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Cheap flights from Denver 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 Denver 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 Denver to Sydney

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Filter for what you want

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Air New Zealand flights from Denver to Sydney

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

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets

momondo Fare Finder

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

See travel insights to Sydney from

How to get the cheapest flight ticket from Denver to Sydney

What is the typical price of a round-trip flight between Denver and Sydney?

What is the cheapest month to fly to Sydney?

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

Can stopping save me money on Denver to Sydney flights?

How have Denver to Sydney flight prices changed over time?

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

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Denver and Sydney?

Which layover airport offers the lowest fares from Denver to Sydney?

Which layover airport has the shortest travel time from Denver to Sydney?

Which layover airport has the shortest connection time from Denver to Sydney?

When to book flights from Denver to Sydney

Cheap Denver to Sydney (DEN to SYD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Denver to Sydney

Best airlines flying from Denver to Sydney

Compare and see reviews for airlines that fly from Denver 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

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According to popular flight searches on momondo this year

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