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 connection time from Denver to Sydney?

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

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

Los Angeles (LAX) was the most common stop: 91% of momondo users choosing 1-stop flights on this route connected there.

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.

$486 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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One-way

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

30h 25m2 stops Los Angeles Nadi

6:00 am - 11:49 pmSYD Sydney Kingsford Smith-DEN Denver Intl

35h 49m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl

$965Multiple Airlines

Mon, Oct 26 - Wed, Nov 11

1:54 pm - 10:05 pmDEN Denver Intl-SYD Sydney Kingsford Smith

38h 11m2 stops Los Angeles Nadi

2:00 pm - 7:45 pmSYD Sydney Kingsford Smith-DEN Denver Intl

23h 45m2 stops Nadi Los Angeles

$966Multiple Airlines

Tue, Dec 1 - Tue, Dec 15

1:29 pm - 10:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

27h 06m2 stops Los Angeles Auckland Intl

2:05 pm - 10:01 pmSYD Sydney Kingsford Smith-DEN Denver Intl

25h 56m2 stops Auckland Intl Los Angeles

$1,138Air New Zealand

Mon, Feb 1 - Wed, Feb 17

9:52 am - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

28h 43m2 stops Los Angeles Auckland Intl

2:05 pm - 5:50 pmSYD Sydney Kingsford Smith-DEN Denver Intl

20h 45m2 stops Auckland Intl Los Angeles

$1,138Air New Zealand

Sun, Feb 21 - Wed, Mar 17

6:51 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 09m1 stop Los Angeles

11:15 am - 11:45 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 30m1 stop Los Angeles

$1,265American Airlines

Fri, Nov 20 - Thu, Nov 26

6:51 pm - 9:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 09m1 stop Los Angeles

11:15 am - 6:07 pmSYD Sydney Kingsford Smith-DEN Denver Intl

24h 52m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,269American Airlines

Fri, Nov 20 - Thu, Nov 26

7:00 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 35m1 stop Vancouver Intl

11:20 am - 12:43 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 23m1 stop Vancouver Intl

$1,401Air Canada

Sun, Oct 25 - Sun, Nov 8

7:00 pm - 8:35 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 35m1 stop Vancouver Intl

11:20 am - 12:43 pmSYD Sydney Kingsford Smith-DEN Denver Intl

19h 23m1 stop Vancouver Intl

$1,450Air Canada

Wed, Oct 28 - Tue, Nov 3

7:51 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

18h 39m1 stop Los Angeles

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

24h 45m1 stop Los Angeles

$1,550Delta

Tue, Dec 8 - Wed, Dec 23

12:27 pm - 8:30 amDEN Denver Intl-SYD Sydney Kingsford Smith

26h 03m1 stop Los Angeles

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

18h 49m1 stop Los Angeles

$1,550Delta

Wed, Dec 30 - Wed, Jan 20

Cheap last minute flights

Enter your travel dates to find the best prices.

1:10 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

10:10 am - 3:14 pmSYD Sydney Kingsford Smith-DEN Denver Intl

22h 04m1 stop Los Angeles

$1,377Multiple Airlines

Tue, Sep 29 - Wed, Oct 14

1:10 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

25h 55m1 stop Los Angeles

6:50 pm - 9:46 amSYD Sydney Kingsford Smith-DEN Denver Intl

31h 56m2 stops Los Angeles San Francisco

$1,388Multiple Airlines

Tue, Sep 29 - Wed, Oct 14

7:45 pm - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 15m1 stop Los Angeles

7:20 pm - 11:23 pmSYD Sydney Kingsford Smith-DEN Denver Intl

45h 03m2 stops Auckland Intl San Francisco

$1,539Air New Zealand

Tue, Sep 29 - Thu, Oct 15

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

$1,551Delta

Wed, Sep 30 - Tue, Oct 6

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

18h 55m1 stop Los Angeles

10:15 am - 10:40 pmSYD Sydney Kingsford Smith-DEN Denver Intl

29h 25m2 stops Los Angeles Salt Lake City

$1,555Delta

Wed, Sep 30 - Tue, Oct 6

7:45 pm - 7:00 amDEN Denver Intl-SYD Sydney Kingsford Smith

19h 15m1 stop Los Angeles

7:20 pm - 12:53 amSYD Sydney Kingsford Smith-DEN Denver Intl

46h 33m2 stops Auckland Intl San Francisco

$1,564Air New Zealand

Thu, Oct 1 - Thu, Oct 15

3:39 pm - 6:55 amDEN Denver Intl-SYD Sydney Kingsford Smith

23h 16m1 stop San Francisco

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

22h 00m1 stop San Francisco

$1,998United Airlines

Tue, Sep 29 - Wed, Oct 14

6:11 pm - 7:05 amDEN Denver Intl-SYD Sydney Kingsford Smith

20h 54m1 stop Los Angeles

10:10 am - 11:21 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$2,041Qantas Airways

Thu, Oct 1 - Thu, Oct 15

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

27h 59m1 stop Los Angeles

10:10 am - 11:21 amSYD Sydney Kingsford Smith-DEN Denver Intl

18h 11m1 stop Los Angeles

$2,061Qantas Airways

Thu, Oct 1 - Thu, Oct 15

8:29 pm - 7:20 amDEN Denver Intl-SYD Sydney Kingsford Smith

42h 51m3 stops Chicago O'Hare Intl Toronto Pearson Intl Vancouver Intl

10:20 am - 8:17 pmSYD Sydney Kingsford Smith-DEN Denver Intl

26h 57m2 stops Vancouver Intl Toronto Pearson Intl

$2,990Air Canada

Tue, Sep 29 - Wed, Oct 14

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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

DEN1:29 pmDenver Intl

27h 06m

2 stops

SYD10:35 amSydney Kingsford Smith

Feb 17

SYD2:05 pmSydney Kingsford Smith

25h 56m

2 stops

DEN10:01 pmDenver Intl

$1,138

Air New Zealand

Oct 25

DEN7:55 amDenver Intl

31h 40m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 8

SYD7:25 pmSydney Kingsford Smith

40h 31m

2 stops

DEN5:56 pmDenver Intl

$1,173

Air New Zealand

Feb 16

DEN1:29 pmDenver Intl

27h 06m

2 stops

SYD10:35 amSydney Kingsford Smith

Feb 22

SYD2:05 pmSydney Kingsford Smith

26h 06m

2 stops

DEN10:11 pmDenver Intl

$1,184

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets

Delta

Sep 30

DEN7:55 pmDenver Intl

18h 55m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 6

SYD10:15 amSydney Kingsford Smith

18h 11m

1 stop

DEN11:26 amDenver Intl

$1,551

Delta

Sep 30

DEN6:00 amDenver Intl

32h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

Oct 6

SYD10:15 amSydney Kingsford Smith

23h 41m

2 stops

DEN4:56 pmDenver Intl

$1,555

Delta

Oct 1

DEN12:25 pmDenver Intl

26h 25m

1 stop

SYD6:50 amSydney Kingsford Smith

Oct 15

SYD10:15 amSydney Kingsford Smith

24h 54m

1 stop

DEN6:09 pmDenver Intl

$1,650

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

1:10 pm-12:35 pm

2 stops30h 25m

Sydney Kingsford Smith

Wed 11/11

6:00 am-11:49 pm

3 stops35h 49m

$965

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/1

1:54 pm-10:05 pm

2 stops38h 11m

Sydney Kingsford Smith

Tue 12/15

2:00 pm-7:45 pm

2 stops23h 45m

$966

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 2/1

1:29 pm-10:35 am

2 stops27h 06m

Sydney Kingsford Smith

Wed 2/17

2:05 pm-10:01 pm

2 stops25h 56m

$1,138

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 2/21

9:52 am-8:35 am

2 stops28h 43m

Sydney Kingsford Smith

Wed 3/17

2:05 pm-5:50 pm

2 stops20h 45m

$1,138

Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 11/20

6:51 pm-9:00 am

1 stop20h 09m

Sydney Kingsford Smith

Thu 11/26

11:15 am-11:45 am

1 stop18h 30m

$1,265

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 11/20

6:51 pm-9:00 am

1 stop20h 09m

Sydney Kingsford Smith

Thu 11/26

11:15 am-6:07 pm

2 stops24h 52m

$1,269

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 10/25

7:00 pm-8:35 am

1 stop20h 35m

Sydney Kingsford Smith

Sun 11/8

11:20 am-12:43 pm

1 stop19h 23m

$1,401

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 10/28

7:00 pm-8:35 am

1 stop20h 35m

Sydney Kingsford Smith

Tue 11/3

11:20 am-12:43 pm

1 stop19h 23m

$1,450

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/8

7:51 pm-8:30 am

1 stop18h 39m

Sydney Kingsford Smith

Wed 12/23

10:40 am-5:25 pm

1 stop24h 45m

$1,550

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 12/30

12:27 pm-8:30 am

1 stop26h 03m

Sydney Kingsford Smith

Wed 1/20

10:40 am-11:29 am

1 stop18h 49m

$1,550

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 $1,380 to $1,583.
The lowest price recently found on this route was $965.

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 $1,367 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	$486
Fastest flight time	25h 55m
Direct flights	None

The best one-way flight to Sydney from Denver in the past 72 hours is $486. The best round-trip flight deal from Denver to Sydney found on momondo in the last 72 hours is $965.

The fastest flight from Denver to Sydney takes 25h 55m

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 25h 55m.
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 (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 $197	Free Cancellation	Rating 7.8 8,606 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 12,099 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $847	Free Cancellation	Rating 7.5 1,102 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 10,246 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,050	Free Cancellation	Rating 7.1 11,701 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,180	Free Cancellation	Rating 8.0 670 reviews	Search Air New Zealand flights

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Manly

Terrigal

Lithgow

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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 $486

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

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

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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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