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: 96% 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 offers the lowest fares from Denver to Sydney?

Flights via Los Angeles (LAX) offer the lowest average round-trip price of $1,661.

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.

$524 Cheap Flights from Denver to Sydney in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

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12:42 pm - 11:50 am

DEN

SYD

31h 08m

2 stops

1:15 pm - 11:44 pm

SYD

DEN

26h 29m

3 stops

$936Multiple Airlines

Wed, Sep 9 - Wed, Sep 23

1:10 pm - 11:50 am

DEN

SYD

30h 40m

2 stops

1:15 pm - 12:46 pm

SYD

DEN

39h 31m

3 stops

$949Multiple Airlines

Mon, Sep 14 - Mon, Sep 28

9:50 am - 8:05 am

DEN

SYD

29h 15m

1 stop

11:50 am - 4:12 pm

SYD

DEN

22h 22m

2 stops

$1,461Air New Zealand

Mon, Oct 26 - Wed, Nov 11

11:45 am - 8:45 am

DEN

SYD

28h 00m

2 stops

10:20 am - 4:12 pm

SYD

DEN

22h 52m

1 stop

$1,461Air New Zealand

Sun, Oct 18 - Wed, Oct 28

7:50 pm - 8:20 am

DEN

SYD

19h 30m

1 stop

10:20 am - 4:58 pm

SYD

DEN

23h 38m

1 stop

$1,490Air Canada

Mon, Oct 5 - Tue, Oct 20

7:50 pm - 8:20 am

DEN

SYD

19h 30m

1 stop

11:20 am - 12:38 pm

SYD

DEN

19h 18m

1 stop

$1,490Air Canada

Wed, Oct 21 - Wed, Nov 4

10:45 am - 6:50 am

DEN

SYD

28h 05m

2 stops

10:15 am - 7:40 pm

SYD

DEN

26h 25m

2 stops

$1,600Delta

Sun, Sep 20 - Sun, Oct 4

7:49 pm - 8:30 am

DEN

SYD

18h 41m

1 stop

10:40 am - 6:54 pm

SYD

DEN

26h 14m

1 stop

$1,646Delta

Fri, Nov 20 - Sun, Dec 6

12:53 pm - 9:00 am

DEN

SYD

26h 07m

1 stop

11:15 am - 6:53 pm

SYD

DEN

25h 38m

1 stop

$1,713American Airlines

Sat, Jan 23 - Mon, Feb 8

10:47 am - 6:55 am

DEN

SYD

28h 08m

1 stop

10:10 am - 11:21 am

SYD

DEN

18h 11m

1 stop

$1,753American Airlines

Thu, Oct 1 - Sun, Oct 11

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Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

Air Canada

Aug 2

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 12

SYD9:20 amSydney Kingsford Smith

23h 53m

1 stop

DEN5:13 pmDenver Intl

$1,507

Air Canada

Aug 3

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 12

SYD9:20 amSydney Kingsford Smith

30h 32m

1 stop

DEN11:52 pmDenver Intl

$1,517

Air Canada

Aug 2

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 12

SYD6:30 amSydney Kingsford Smith

26h 43m

2 stops

DEN5:13 pmDenver Intl

$1,533

Air New Zealand flights from Denver to Sydney

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

Air New Zealand

Aug 2

DEN9:10 amDenver Intl

30h 10m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 11

SYD9:20 amSydney Kingsford Smith

30h 32m

1 stop

DEN11:52 pmDenver Intl

$1,567

Air New Zealand

Aug 2

DEN7:45 pmDenver Intl

19h 35m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 13

SYD9:20 amSydney Kingsford Smith

30h 32m

1 stop

DEN11:52 pmDenver Intl

$1,608

Air New Zealand

Aug 2

DEN11:45 amDenver Intl

29h 00m

2 stops

SYD8:45 amSydney Kingsford Smith

Aug 4

SYD11:55 amSydney Kingsford Smith

27h 20m

2 stops

DEN11:15 pmDenver Intl

$1,780

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 9/9

12:42 pm-11:50 am

2 stops31h 08m

Sydney Kingsford Smith

Wed 9/23

1:15 pm-11:44 pm

3 stops26h 29m

$936

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 9/14

1:10 pm-11:50 am

2 stops30h 40m

Sydney Kingsford Smith

Mon 9/28

1:15 pm-12:46 pm

3 stops39h 31m

$949

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 10/26

9:50 am-8:05 am

1 stop29h 15m

Sydney Kingsford Smith

Wed 11/11

11:50 am-4:12 pm

2 stops22h 22m

$1,461

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 10/18

11:45 am-8:45 am

2 stops28h 00m

Sydney Kingsford Smith

Wed 10/28

10:20 am-4:12 pm

1 stop22h 52m

$1,461

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 10/5

7:50 pm-8:20 am

1 stop19h 30m

Sydney Kingsford Smith

Tue 10/20

10:20 am-4:58 pm

1 stop23h 38m

$1,490

Quickest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 10/21

7:50 pm-8:20 am

1 stop19h 30m

Sydney Kingsford Smith

Wed 11/4

11:20 am-12:38 pm

1 stop19h 18m

$1,490

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 9/20

10:45 am-6:50 am

2 stops28h 05m

Sydney Kingsford Smith

Sun 10/4

10:15 am-7:40 pm

2 stops26h 25m

$1,600

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 11/20

7:49 pm-8:30 am

1 stop18h 41m

Sydney Kingsford Smith

Sun 12/6

10:40 am-6:54 pm

1 stop26h 14m

$1,646

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 1/23

12:53 pm-9:00 am

1 stop26h 07m

Sydney Kingsford Smith

Mon 2/8

11:15 am-6:53 pm

1 stop25h 38m

$1,713

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 10/1

10:47 am-6:55 am

1 stop28h 08m

Sydney Kingsford Smith

Sun 10/11

10:10 am-11:21 am

1 stop18h 11m

$1,753

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 $1,110 to $1,802.
The lowest price recently found on this route was $936.

What is the cheapest month to fly to Sydney?

In general, April 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 $1,183. If you are unable to visit Sydney during the month of April, then departing from Denver during the month September is also very affordable. Most momondo users find prices during this month for around $1,185.

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 $1,365 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 $1,217 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 5% 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 36% 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	18h 49m
Direct flights	None

The fastest flight from Denver to Sydney takes 18h 49m

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

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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 18h 49m.
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 (29% of total bookings). The next most popular airlines are Air Canada (22%), United Airlines (19%), 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 $250	Free Cancellation	Rating 7.8 8,497 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.0 249 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $849	Free Cancellation	Rating 7.5 1,073 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,062 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,029	Free Cancellation	Rating 7.1 11,415 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,144	Free Cancellation	Rating 8.0 657 reviews	Search Air New Zealand flights

Parramatta

Bondi Beach

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 $524

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 8/31. 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 Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

Air New Zealand flights from Denver to Sydney

Our best Air New Zealand 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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