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 37% 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: 96% of momondo users choosing 1-stop flights on this route connected there.

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.

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.

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 August 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.

$544 Cheap Flights from Denver to Sydney in 2026

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Find the cheapest flights from Denver to Sydney

Round-trip

One-way

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6:30 am - 10:05 pmDEN Denver Intl-SYD Sydney Kingsford Smith

46h 35m2 stops Los Angeles Nadi

6:00 am - 12:25 amSYD Sydney Kingsford Smith-DEN Denver Intl

36h 25m2 stops Nadi Los Angeles

$976Multiple Airlines

Sat, Oct 24 - Mon, Nov 9

1:10 pm - 11:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

30h 40m2 stops Los Angeles Nadi

6:15 am - 11:44 pmSYD Sydney Kingsford Smith-DEN Denver Intl

33h 29m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,001Multiple Airlines

Sat, Sep 19 - Tue, Sep 29

4:15 pm - 8:45 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 30m2 stops Los Angeles Auckland Intl

9:55 am - 5:56 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 01m2 stops Auckland Intl Los Angeles

$1,135Air New Zealand

Wed, Oct 21 - Wed, Nov 4

4:05 pm - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 30m2 stops Los Angeles Auckland Intl

9:55 am - 7:44 pmSYD Sydney Kingsford Smith-DEN Denver Intl

27h 49m2 stops Auckland Intl Los Angeles

$1,136Air New Zealand

Wed, Oct 28 - Tue, Nov 3

7:50 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

9:20 am - 4:58 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 38m1 stop Vancouver Intl

$1,433Air Canada

Mon, Sep 14 - Mon, Sep 28

7:50 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

9:20 am - 4:58 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 38m1 stop Vancouver Intl

$1,433Air Canada

Wed, Sep 9 - Mon, Sep 21

12:59 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 51m1 stop Los Angeles

2:15 pm - 6:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

21h 55m1 stop Los Angeles

$1,509Delta

Tue, Jan 19 - Tue, Jan 26

12:59 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 31m1 stop Los Angeles

10:40 am - 6:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 30m1 stop Los Angeles

$1,509Delta

Wed, Jan 27 - Mon, Feb 8

8:39 pm - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

40h 21m1 stop Houston George Bush Intcntl

11:50 am - 12:30 pmSYD Sydney Kingsford Smith-DEN Denver Intl

18h 40m1 stop San Francisco

$1,767United Airlines

Sat, Jan 23 - Mon, Feb 1

9:25 pm - 9:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

41h 40m1 stop Los Angeles

11:50 am - 12:30 pmSYD Sydney Kingsford Smith-DEN Denver Intl

18h 40m1 stop San Francisco

$1,767United Airlines

Sat, Jan 23 - Mon, Feb 8

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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

Oct 21

DEN4:15 pmDenver Intl

23h 30m

2 stops

SYD8:45 amSydney Kingsford Smith

Nov 4

SYD9:55 amSydney Kingsford Smith

26h 01m

2 stops

DEN5:56 pmDenver Intl

$1,135

Air New Zealand

Oct 26

DEN4:05 pmDenver Intl

23h 30m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 11

SYD2:05 pmSydney Kingsford Smith

21h 51m

2 stops

DEN5:56 pmDenver Intl

$1,136

Air New Zealand

Oct 26

DEN1:30 pmDenver Intl

26h 05m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 11

SYD11:50 amSydney Kingsford Smith

27h 37m

2 stops

DEN9:27 pmDenver Intl

$1,139

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets

Delta

Aug 24

DEN7:55 pmDenver Intl

18h 55m

1 stop

SYD6:50 amSydney Kingsford Smith

Sep 6

SYD9:15 amSydney Kingsford Smith

25h 07m

1 stop

DEN6:22 pmDenver Intl

$1,509

Delta

Aug 17

DEN7:55 pmDenver Intl

18h 55m

1 stop

SYD6:50 amSydney Kingsford Smith

Sep 5

SYD9:15 amSydney Kingsford Smith

25h 07m

1 stop

DEN6:22 pmDenver Intl

$1,559

Delta

Aug 17

DEN5:35 amDenver Intl

33h 15m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 5

SYD9:15 amSydney Kingsford Smith

30h 43m

2 stops

DEN11:58 pmDenver Intl

$1,564

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 10/24

6:30 am-10:05 pm

2 stops46h 35m

Sydney Kingsford Smith

Mon 11/9

6:00 am-12:25 am

2 stops36h 25m

$976

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 9/19

1:10 pm-11:50 am

2 stops30h 40m

Sydney Kingsford Smith

Tue 9/29

6:15 am-11:44 pm

3 stops33h 29m

$1,001

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 10/21

4:15 pm-8:45 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 11/4

9:55 am-5:56 pm

2 stops26h 01m

$1,135

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 10/28

4:05 pm-10:35 am

2 stops25h 30m

Sydney Kingsford Smith

Tue 11/3

9:55 am-7:44 pm

2 stops27h 49m

$1,136

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 9/14

7:50 pm-7:20 am

1 stop19h 30m

Sydney Kingsford Smith

Mon 9/28

9:20 am-4:58 pm

1 stop23h 38m

$1,433

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/9

7:50 pm-7:20 am

1 stop19h 30m

Sydney Kingsford Smith

Mon 9/21

9:20 am-4:58 pm

1 stop23h 38m

$1,433

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 1/19

12:59 pm-6:50 am

1 stop23h 51m

Sydney Kingsford Smith

Tue 1/26

2:15 pm-6:10 pm

1 stop21h 55m

$1,509

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 1/27

12:59 pm-8:30 am

1 stop25h 31m

Sydney Kingsford Smith

Mon 2/8

10:40 am-6:10 pm

1 stop25h 30m

$1,509

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 1/23

8:39 pm-7:00 am

1 stop40h 21m

Sydney Kingsford Smith

Mon 2/1

11:50 am-12:30 pm

1 stop18h 40m

$1,767

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 1/23

9:25 pm-9:05 am

1 stop41h 40m

Sydney Kingsford Smith

Mon 2/8

11:50 am-12:30 pm

1 stop18h 40m

$1,767

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 $1,054 to $1,804.
The lowest price recently found on this route was $976.

What is the cheapest month to fly to Sydney?

In general, May 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 May, then departing from Denver during the month April is also very affordable. Most momondo users find prices during this month for around $1,183.

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 $1,363 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 $1,068 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 10% 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 August 2026, prices for Denver to Sydney flights are approximately 78% 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

Fastest flight time	23h 00m
Direct flights	None

The fastest flight from Denver to Sydney takes 23h 00m

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 23h 00m.
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 August 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 (30% of total bookings). The next most popular airlines are Air Canada (20%), United Airlines (18%), and Delta (13%).

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 $215	Free Cancellation	Rating 7.8 8,496 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.0 252 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $849	Free Cancellation	Rating 7.5 1,081 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,099 reviews	Search United Airlines flights
American Airlines	PriceFrom $895	Free Cancellation	Rating 7.1 11,897 reviews	Search American Airlines flights
Air Canada	PriceFrom $1,029	Free Cancellation	Rating 7.1 11,457 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,144	Free Cancellation	Rating 8.0 659 reviews	Search Air New Zealand flights

Parramatta

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Wollongong

Penrith

Katoomba

Leura

Cronulla

Randwick

Manly

Lithgow

Coogee

Terrigal

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 $544

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 12/8. 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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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

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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 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

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.

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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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