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 38% 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 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 airport is the most popular layover for flights between Denver and Sydney?

Los Angeles (LAX) was the most common stop: 95% of momondo users choosing 1-stop flights on this route connected there.

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.

$385 Cheap Flights from Denver to Sydney in 2026

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Find the cheapest flights from Denver to Sydney

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One-way

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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

$975Multiple Airlines

Tue, Sep 22 - Tue, Sep 29

12:42 pm - 10:25 pmDEN Denver Intl-SYD Sydney Kingsford Smith

41h 43m2 stops Los Angeles Nadi

1:15 pm - 11:44 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 29m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$976Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

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

23h 30m2 stops Los Angeles Auckland Intl

2:05 pm - 5:56 pmSYD Sydney Kingsford Smith-DEN Denver Intl

21h 51m2 stops Auckland Intl Los Angeles

$1,140Air New Zealand

Mon, Oct 26 - Wed, Nov 11

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

25h 30m2 stops Los Angeles Auckland Intl

11:50 am - 4:12 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 22m2 stops Auckland Intl Los Angeles

$1,140Air New Zealand

Mon, Oct 26 - Wed, Nov 11

11:21 am - 8:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 59m2 stops Calgary Vancouver Intl

10:20 am - 6:03 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 43m2 stops Vancouver Intl Edmonton

$1,305Air Canada

Tue, Oct 20 - Mon, Oct 26

3:53 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 42m1 stop Vancouver Intl

11:20 am - 7:03 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 43m2 stops Vancouver Intl Edmonton

$1,306Air Canada

Sun, Oct 25 - Sun, Nov 1

12:37 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 53m1 stop Los Angeles

10:40 am - 6:52 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 12m1 stop Los Angeles

$1,510Delta

Wed, Nov 11 - Wed, Nov 25

12:22 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 08m1 stop Los Angeles

10:40 am - 5:25 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 45m1 stop Los Angeles

$1,510Delta

Tue, Dec 8 - Wed, Dec 23

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

20h 14m1 stop Los Angeles

11:20 am - 11:30 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 10m1 stop Los Angeles

$1,718Qantas Airways

Tue, Dec 8 - Wed, Dec 23

12:09 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 51m1 stop Los Angeles

11:20 am - 11:30 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 10m1 stop Los Angeles

$1,808Qantas Airways

Sun, Dec 27 - Tue, Jan 5

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 7:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 30m1 stop Los Angeles

6:20 am - 9:32 amSYD Sydney Kingsford Smith-DEN Denver Intl

43h 12m3 stops Auckland Intl Papeete Faaa Los Angeles

$1,358Multiple Airlines

Sun, Aug 30 - Sun, Sep 13

7:45 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

9:20 am - 6:04 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 44m2 stops Vancouver Intl Edmonton

$1,390Air Canada

Sun, Aug 30 - Sun, Sep 13

7:45 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

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

23h 38m1 stop Vancouver Intl

$1,391Air Canada

Sun, Aug 30 - Sun, Sep 13

7:45 pm - 10:40 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 55m2 stops Vancouver Intl Brisbane

9:20 am - 6:04 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 44m2 stops Vancouver Intl Edmonton

$1,404Multiple Airlines

Sun, Aug 30 - Sun, Sep 13

7:45 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 35m1 stop Vancouver Intl

9:20 am - 6:04 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 44m2 stops Vancouver Intl Edmonton

$1,410Air Canada

Sun, Aug 30 - Sun, Sep 13

11:45 am - 8:45 amDEN Denver Intl-SYD Sydney Kingsford Smith

29h 00m2 stops Los Angeles Auckland Intl

10:20 am - 6:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 50m1 stop San Francisco

$1,475Air New Zealand

Thu, Aug 27 - Sun, Sep 6

8:22 am - 6:10 amDEN Denver Intl-SYD Sydney Kingsford Smith

29h 48m2 stops Seattle/Tacoma Intl Hong Kong Intl

2:05 pm - 11:09 amSYD Sydney Kingsford Smith-DEN Denver Intl

37h 04m2 stops Hong Kong Intl Los Angeles

$1,484Multiple Airlines

Thu, Aug 27 - Sun, Sep 6

6:20 am - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 30m2 stops Seattle/Tacoma Intl Los Angeles

9:15 am - 11:47 pmSYD Sydney Kingsford Smith-DEN Denver Intl

30h 32m2 stops Los Angeles Seattle/Tacoma Intl

$1,515Delta

Sun, Aug 30 - Sun, Sep 13

6:20 am - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 30m2 stops Seattle/Tacoma Intl Los Angeles

9:15 am - 11:22 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 07m1 stop Los Angeles

$1,515Delta

Sun, Aug 30 - Sun, Sep 13

3:57 pm - 8:45 amDEN Denver Intl-SYD Sydney Kingsford Smith

24h 48m2 stops Los Angeles Auckland Intl

10:20 am - 8:07 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 47m1 stop San Francisco

$1,525Air New Zealand

Thu, Aug 27 - Sun, Sep 6

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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 26

DEN4:05 pmDenver Intl

25h 30m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 11

SYD11:50 amSydney Kingsford Smith

22h 22m

2 stops

DEN4:12 pmDenver Intl

$1,140

Air New Zealand

Oct 26

DEN4:05 pmDenver Intl

25h 30m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 11

SYD11:50 amSydney Kingsford Smith

22h 22m

2 stops

DEN4:12 pmDenver Intl

$1,141

Air New Zealand

Nov 2

DEN4:05 pmDenver Intl

26h 45m

2 stops

SYD12:50 pmSydney Kingsford Smith

Nov 25

SYD11:50 amSydney Kingsford Smith

27h 37m

2 stops

DEN9:27 pmDenver Intl

$1,142

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

Air Canada

Aug 30

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 13

SYD9:20 amSydney Kingsford Smith

24h 44m

2 stops

DEN6:04 pmDenver Intl

$1,390

Air Canada

Aug 30

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 13

SYD9:20 amSydney Kingsford Smith

23h 38m

1 stop

DEN4:58 pmDenver Intl

$1,391

Air Canada

Aug 30

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 13

SYD9:20 amSydney Kingsford Smith

24h 44m

2 stops

DEN6:04 pmDenver Intl

$1,410

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 9/22

1:10 pm-11:50 am

2 stops30h 40m

Sydney Kingsford Smith

Tue 9/29

6:15 am-11:44 pm

3 stops33h 29m

$975

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/23

12:42 pm-10:25 pm

2 stops41h 43m

Sydney Kingsford Smith

Wed 9/30

1:15 pm-11:44 pm

3 stops26h 29m

$976

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

4:05 pm-8:35 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 11/11

2:05 pm-5:56 pm

2 stops21h 51m

$1,140

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

4:05 pm-10:35 am

2 stops25h 30m

Sydney Kingsford Smith

Wed 11/11

11:50 am-4:12 pm

2 stops22h 22m

$1,140

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 10/20

11:21 am-8:20 am

2 stops27h 59m

Sydney Kingsford Smith

Mon 10/26

10:20 am-6:03 pm

2 stops24h 43m

$1,305

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 10/25

3:53 pm-8:35 am

1 stop23h 42m

Sydney Kingsford Smith

Sun 11/1

11:20 am-7:03 pm

2 stops24h 43m

$1,306

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 11/11

12:37 pm-8:30 am

1 stop25h 53m

Sydney Kingsford Smith

Wed 11/25

10:40 am-6:52 pm

1 stop26h 12m

$1,510

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/8

12:22 pm-8:30 am

1 stop26h 08m

Sydney Kingsford Smith

Wed 12/23

10:40 am-5:25 pm

1 stop24h 45m

$1,510

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/8

6:46 pm-9:00 am

1 stop20h 14m

Sydney Kingsford Smith

Wed 12/23

11:20 am-11:30 am

1 stop18h 10m

$1,718

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 12/27

12:09 pm-9:00 am

1 stop26h 51m

Sydney Kingsford Smith

Tue 1/5

11:20 am-11:30 am

1 stop18h 10m

$1,808

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 $1,004 to $1,648.
The lowest price recently found on this route was $975.

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 $1,374 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 3% 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

Best Price Found	$385
Fastest flight time	23h 15m
Direct flights	None

The best one-way flight to Sydney from Denver in the past 72 hours is $385. The best round-trip flight deal from Denver to Sydney found on momondo in the last 72 hours is $975.

The fastest flight from Denver to Sydney takes 23h 15m

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 15m.
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 (31% of total bookings). The next most popular airlines are Air Canada (19%), 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 8,529 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.0 256 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.1 11,995 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $849	Free Cancellation	Rating 7.5 1,085 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,124 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,029	Free Cancellation	Rating 7.1 11,539 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,144	Free Cancellation	Rating 8.0 664 reviews	Search Air New Zealand flights

Parramatta

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Penrith

Katoomba

Coogee

Cronulla

Leura

Randwick

Manly

Terrigal

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 $385

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 9/26. 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

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

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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 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.

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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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