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.

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 36% 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: 92% 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.

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 September 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.

$494 Cheap Flights from Denver to Sydney in 2026/27

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Find the cheapest flights from Denver to Sydney

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9:00 am - 12:35 pmDEN Denver Intl-SYD Sydney Kingsford Smith

34h 35m2 stops Los Angeles Nadi

2:00 pm - 6:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

46h 10m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,021Multiple Airlines

Mon, Oct 26 - Mon, Nov 9

1:10 pm - 12:35 pmDEN Denver Intl-SYD Sydney Kingsford Smith

29h 25m2 stops Los Angeles Nadi

2:00 pm - 12:42 pmSYD Sydney Kingsford Smith-DEN Denver Intl

40h 42m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$1,028Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

5:00 am - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

33h 35m2 stops Houston George Bush Intcntl Auckland Intl

7:25 pm - 5:50 pmSYD Sydney Kingsford Smith-DEN Denver Intl

39h 25m2 stops Auckland Intl Los Angeles

$1,157Air New Zealand

Tue, Feb 23 - Tue, Mar 16

3:45 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

22h 50m2 stops Los Angeles Auckland Intl

7:30 am - 9:52 pmSYD Sydney Kingsford Smith-DEN Denver Intl

31h 22m2 stops Auckland Intl Houston George Bush Intcntl

$1,158Air New Zealand

Tue, Feb 23 - Tue, Mar 16

7:00 pm - 9:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 35m1 stop Vancouver Intl

7:25 pm - 12:20 pmSYD Sydney Kingsford Smith-DEN Denver Intl

34h 55m2 stops Auckland Intl Vancouver Intl

$1,375Air Canada

Fri, Nov 20 - Tue, Dec 15

7:00 pm - 9:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 35m1 stop Vancouver Intl

11:20 am - 12:29 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 09m1 stop Vancouver Intl

$1,387Air Canada

Tue, Feb 2 - Tue, Feb 23

10:45 am - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 45m2 stops Salt Lake City Los Angeles

10:40 am - 5:19 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 39m2 stops Los Angeles Salt Lake City

$1,502Delta

Mon, Nov 23 - Mon, Dec 14

6:25 am - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

32h 05m1 stop Los Angeles

10:40 am - 5:19 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 39m2 stops Los Angeles Salt Lake City

$1,502Delta

Sun, Nov 22 - Tue, Dec 15

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

20h 14m1 stop Los Angeles

11:10 am - 11:45 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 35m1 stop Los Angeles

$1,639Qantas Airways

Tue, Nov 17 - Tue, Dec 1

12:49 pm - 6:25 amDEN Denver Intl-SYD Sydney Kingsford Smith

24h 36m1 stop Los Angeles

10:10 am - 12:19 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 09m1 stop Los Angeles

$1,650Qantas Airways

Wed, Mar 17 - Wed, Mar 31

Cheap last minute flights

Enter your travel dates to find the best prices.

12:42 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 23m1 stop Los Angeles

6:50 pm - 9:10 amSYD Sydney Kingsford Smith-DEN Denver Intl

31h 20m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,256Multiple Airlines

Wed, Sep 23 - Mon, Oct 12

12:42 pm - 7:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 48m1 stop Los Angeles

6:50 pm - 9:30 amSYD Sydney Kingsford Smith-DEN Denver Intl

31h 40m1 stop Los Angeles

$1,284Multiple Airlines

Wed, Sep 23 - Tue, Oct 13

12:25 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 25m1 stop Los Angeles

10:15 am - 6:09 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 54m1 stop Los Angeles

$1,510Delta

Mon, Sep 28 - Wed, Oct 21

7:55 pm - 6:50 amDEN Denver Intl-SYD Sydney Kingsford Smith

18h 55m1 stop Los Angeles

10:15 am - 11:26 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$1,510Delta

Wed, Sep 23 - Tue, Oct 13

5:40 pm - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

21h 20m1 stop Los Angeles

11:55 am - 10:09 pmSYD Sydney Kingsford Smith-DEN Denver Intl

27h 14m2 stops Auckland Intl San Francisco

$1,789Air New Zealand

Mon, Sep 28 - Wed, Oct 21

11:06 am - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 59m1 stop Los Angeles

1:00 pm - 9:47 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 47m1 stop Dallas/Fort Worth

$1,955American Airlines

Mon, Sep 28 - Wed, Oct 21

11:23 am - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 57m2 stops Edmonton Vancouver Intl

10:20 am - 11:54 pmSYD Sydney Kingsford Smith-DEN Denver Intl

30h 34m3 stops Vancouver Intl Toronto Pearson Intl Chicago O'Hare Intl

$1,959Air Canada

Mon, Sep 28 - Wed, Oct 21

11:06 am - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 59m1 stop Los Angeles

8:15 pm - 9:49 amSYD Sydney Kingsford Smith-DEN Denver Intl

30h 34m2 stops Honolulu Dallas/Fort Worth

$4,177Qantas Airways

Mon, Sep 28 - Sat, Oct 10

1:30 pm - 7:45 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 15m2 stops Los Angeles Auckland Intl

7:20 pm - 6:05 pmSYD Sydney Kingsford Smith-DEN Denver Intl

39h 45m2 stops Auckland Intl San Francisco

$4,545Air New Zealand

Mon, Sep 28 - Sat, Oct 10

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

31h 35m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl

10:20 am - 4:10 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 50m2 stops Vancouver Intl San Diego

$18,617Air Canada

Mon, Sep 28 - Sat, Oct 10

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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

DEN1:30 pmDenver Intl

28h 05m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 11

SYD11:50 amSydney Kingsford Smith

24h 10m

2 stops

DEN6:00 pmDenver Intl

$1,186

Air New Zealand

Nov 21

DEN9:18 pmDenver Intl

41h 17m

2 stops

SYD8:35 amSydney Kingsford Smith

Dec 7

SYD11:50 amSydney Kingsford Smith

22h 20m

2 stops

DEN4:10 pmDenver Intl

$1,195

Air New Zealand

Nov 9

DEN12:05 pmDenver Intl

39h 45m

2 stops

SYD9:50 pmSydney Kingsford Smith

Nov 14

SYD2:05 pmSydney Kingsford Smith

25h 22m

2 stops

DEN9:27 pmDenver Intl

$1,207

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets

Delta

Sep 29

DEN12:25 pmDenver Intl

26h 25m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 13

SYD10:15 amSydney Kingsford Smith

18h 11m

1 stop

DEN11:26 amDenver Intl

$1,510

Delta

Sep 29

DEN12:25 pmDenver Intl

26h 25m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 14

SYD10:15 amSydney Kingsford Smith

24h 54m

1 stop

DEN6:09 pmDenver Intl

$1,511

Delta

Sep 23

DEN1:00 pmDenver Intl

25h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

Oct 13

SYD10:15 amSydney Kingsford Smith

29h 25m

2 stops

DEN10:40 pmDenver Intl

$1,515

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

9:00 am-12:35 pm

2 stops34h 35m

Sydney Kingsford Smith

Mon 11/9

2:00 pm-6:10 pm

3 stops46h 10m

$1,021

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 11/2

1:10 pm-12:35 pm

2 stops29h 25m

Sydney Kingsford Smith

Mon 11/9

2:00 pm-12:42 pm

3 stops40h 42m

$1,028

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 2/23

5:00 am-8:35 am

2 stops33h 35m

Sydney Kingsford Smith

Tue 3/16

7:25 pm-5:50 pm

2 stops39h 25m

$1,157

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 2/23

3:45 pm-8:35 am

2 stops22h 50m

Sydney Kingsford Smith

Tue 3/16

7:30 am-9:52 pm

2 stops31h 22m

$1,158

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 11/20

7:00 pm-9:35 am

1 stop20h 35m

Sydney Kingsford Smith

Tue 12/15

7:25 pm-12:20 pm

2 stops34h 55m

$1,375

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 2/2

7:00 pm-9:35 am

1 stop20h 35m

Sydney Kingsford Smith

Tue 2/23

11:20 am-12:29 pm

1 stop19h 09m

$1,387

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 11/23

10:45 am-8:30 am

2 stops27h 45m

Sydney Kingsford Smith

Mon 12/14

10:40 am-5:19 pm

2 stops24h 39m

$1,502

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 11/22

6:25 am-8:30 am

1 stop32h 05m

Sydney Kingsford Smith

Tue 12/15

10:40 am-5:19 pm

2 stops24h 39m

$1,502

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 11/17

6:46 pm-9:00 am

1 stop20h 14m

Sydney Kingsford Smith

Tue 12/1

11:10 am-11:45 am

1 stop18h 35m

$1,639

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 3/17

12:49 pm-6:25 am

1 stop24h 36m

Sydney Kingsford Smith

Wed 3/31

10:10 am-12:19 pm

1 stop19h 09m

$1,650

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 $1,102 to $1,524.
The lowest price recently found on this route was $1,021.

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 $1,367 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 $1,061 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 9% 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 September 2026, prices for Denver to Sydney flights are approximately 0% 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	$494
Fastest flight time	18h 39m
Direct flights	None

The best one-way flight to Sydney from Denver in the past 72 hours is $494. The best round-trip flight deal from Denver to Sydney found on momondo in the last 72 hours is $1,021.

The fastest flight from Denver to Sydney takes 18h 39m

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 18h 39m.
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 September 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 (21%), United Airlines (17%), and Delta (14%).

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 8,595 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.0 259 reviews	Search Fiji Airways flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.0 12,081 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $847	Free Cancellation	Rating 7.5 1,101 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,227 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,050	Free Cancellation	Rating 7.1 11,665 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,180	Free Cancellation	Rating 8.0 669 reviews	Search Air New Zealand flights

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Randwick

Cronulla

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

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Cheap flights from Denver to Sydney from $494

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 11/7. 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

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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