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: 88% 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: 20h 03m.

Which layover airport offers the lowest fares from Denver to Sydney?

Flights via Vancouver (YVR) offer the lowest average round-trip price of $1,264.

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 50m.

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 July 2026, there are 8 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.

$518 Cheap Flights from Denver to Sydney in 2026

Q: What is the typical price of a round-trip flight between Denver and Sydney?

Prices are currently typical for flights on this route. Typical prices usually range from $958 to $1,505. The lowest price recently found on this route was $1,036.

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

Enter your travel dates to find the best prices.

7:25 am - 11:50 am

DEN

SYD

36h 25m

2 stops

1:15 pm - 9:41 am

SYD

DEN

36h 26m

3 stops

$1,036Multiple Airlines

Wed, Sep 2 - Tue, Sep 8

9:40 am - 12:35 pm

DEN

SYD

32h 55m

2 stops

2:00 pm - 6:12 pm

SYD

DEN

22h 12m

2 stops

$1,053Multiple Airlines

Sun, Nov 1 - Wed, Nov 18

7:00 am - 11:50 am

DEN

SYD

36h 50m

2 stops

1:15 pm - 12:25 am

SYD

DEN

27h 10m

2 stops

$1,055Multiple Airlines

Sun, Aug 30 - Sun, Sep 13

7:00 am - 11:50 am

DEN

SYD

36h 50m

2 stops

1:15 pm - 12:42 am

SYD

DEN

27h 27m

2 stops

$1,064Multiple Airlines

Mon, Jul 27 - Thu, Aug 6

7:00 am - 10:25 pm

DEN

SYD

47h 25m

2 stops

1:15 pm - 12:25 am

SYD

DEN

27h 10m

2 stops

$1,082Multiple Airlines

Sun, Aug 30 - Sun, Sep 13

10:00 am - 11:50 am

DEN

SYD

33h 50m

3 stops

1:15 pm - 12:42 am

SYD

DEN

27h 27m

2 stops

$1,110Multiple Airlines

Mon, Jul 27 - Thu, Aug 6

7:25 am - 11:50 am

DEN

SYD

36h 25m

2 stops

1:15 pm - 7:33 am

SYD

DEN

58h 18m

3 stops

$1,113Multiple Airlines

Tue, Jul 28 - Tue, Aug 18

4:25 pm - 11:50 am

DEN

SYD

51h 25m

3 stops

1:15 pm - 1:20 pm

SYD

DEN

40h 05m

3 stops

$1,136Multiple Airlines

Fri, Jul 24 - Tue, Aug 18

7:00 am - 11:50 am

DEN

SYD

36h 50m

2 stops

1:15 pm - 12:29 am

SYD

DEN

27h 14m

2 stops

$1,151Multiple Airlines

Thu, Jul 30 - Mon, Aug 3

10:29 pm - 7:30 am

DEN

SYD

40h 01m

1 stop

11:15 am - 12:25 am

SYD

DEN

30h 10m

1 stop

$1,160Multiple Airlines

Tue, Oct 20 - Thu, Oct 29

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

Air Canada

Jul 26

DEN9:10 amDenver Intl

30h 10m

1 stop

SYD7:20 amSydney Kingsford Smith

Aug 18

SYD9:20 amSydney Kingsford Smith

30h 32m

1 stop

DEN11:52 pmDenver Intl

$1,507

Air Canada

Jul 26

DEN11:23 amDenver Intl

27h 57m

2 stops

SYD7:20 amSydney Kingsford Smith

Aug 31

SYD9:20 amSydney Kingsford Smith

24h 44m

2 stops

DEN6:04 pmDenver Intl

$1,517

Air Canada

Jul 25

DEN6:05 pmDenver Intl

45h 15m

2 stops

SYD7:20 amSydney Kingsford Smith

Aug 31

SYD9:20 amSydney Kingsford Smith

23h 53m

1 stop

DEN5:13 pmDenver Intl

$1,525

Qantas Airways flights from Denver to Sydney

Our best Qantas Airways deals on Denver to Sydney flight tickets

Qantas Airways

Jul 19

DEN6:12 pmDenver Intl

20h 53m

1 stop

SYD7:05 amSydney Kingsford Smith

Aug 11

SYD9:10 amSydney Kingsford Smith

17h 59m

1 stop

DEN11:09 amDenver Intl

$1,989

Qantas Airways

Jul 19

DEN6:12 pmDenver Intl

20h 53m

1 stop

SYD7:05 amSydney Kingsford Smith

Aug 11

SYD9:10 amSydney Kingsford Smith

24h 46m

1 stop

DEN5:56 pmDenver Intl

$2,019

Qantas Airways

Jul 13

DEN6:12 pmDenver Intl

20h 53m

1 stop

SYD7:05 amSydney Kingsford Smith

Jul 27

SYD9:10 amSydney Kingsford Smith

18h 04m

1 stop

DEN11:14 amDenver Intl

$2,133

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 9/2

7:25 am-11:50 am

2 stops36h 25m

Sydney Kingsford Smith

Tue 9/8

1:15 pm-9:41 am

3 stops36h 26m

$1,036

Quickest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 11/1

9:40 am-12:35 pm

2 stops32h 55m

Sydney Kingsford Smith

Wed 11/18

2:00 pm-6:12 pm

2 stops22h 12m

$1,053

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 8/30

7:00 am-11:50 am

2 stops36h 50m

Sydney Kingsford Smith

Sun 9/13

1:15 pm-12:25 am

2 stops27h 10m

$1,055

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 7/27

7:00 am-11:50 am

2 stops36h 50m

Sydney Kingsford Smith

Thu 8/6

1:15 pm-12:42 am

2 stops27h 27m

$1,064

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 8/30

7:00 am-10:25 pm

2 stops47h 25m

Sydney Kingsford Smith

Sun 9/13

1:15 pm-12:25 am

2 stops27h 10m

$1,082

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 7/27

10:00 am-11:50 am

3 stops33h 50m

Sydney Kingsford Smith

Thu 8/6

1:15 pm-12:42 am

2 stops27h 27m

$1,110

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 7/28

7:25 am-11:50 am

2 stops36h 25m

Sydney Kingsford Smith

Tue 8/18

1:15 pm-7:33 am

3 stops58h 18m

$1,113

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 7/24

4:25 pm-11:50 am

3 stops51h 25m

Sydney Kingsford Smith

Tue 8/18

1:15 pm-1:20 pm

3 stops40h 05m

$1,136

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 7/30

7:00 am-11:50 am

2 stops36h 50m

Sydney Kingsford Smith

Mon 8/3

1:15 pm-12:29 am

2 stops27h 14m

$1,151

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 10/20

10:29 pm-7:30 am

1 stop40h 01m

Sydney Kingsford Smith

Thu 10/29

11:15 am-12:25 am

1 stop30h 10m

$1,160

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?

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 $1,109. If you are unable to visit Sydney during the month of September, 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 $1,341 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 $1,178 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 4% 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 July 2026, prices for Denver to Sydney flights are approximately 18% 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	19h 25m
Direct flights	None

The fastest flight from Denver to Sydney takes 19h 25m

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 19h 25m.
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 July 2026, there are 8 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 (27% of total bookings). The next most popular airlines are United Airlines (20%), Air Canada (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 $253	Free Cancellation	Rating 7.8 8,460 reviews	Search Delta flights
Fiji Airways	PriceFrom $684	Free Cancellation	Rating 8.1 246 reviews	Search Fiji Airways flights
Alaska Airlines	PriceFrom $745	Free Cancellation	Rating 7.9 12,656 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $844	Free Cancellation	Rating 7.1 11,806 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $847	Free Cancellation	Rating 7.5 1,061 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 9,980 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,029	Free Cancellation	Rating 7.1 11,328 reviews	Search Air Canada flights
Air New Zealand	PriceFrom $1,144	Free Cancellation	Rating 8.0 650 reviews	Search Air New Zealand flights

Parramatta

Bondi Beach

Penrith

Wollongong

Katoomba

Cronulla

Leura

Randwick

Lithgow

Coogee

Manly

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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 8/11

Tue 8/18

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Denver

Complete your trip

Feeling lucky

Cheap flights from Denver to Sydney from $518

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 8/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Denver to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets

Qantas Airways flights from Denver to Sydney

Our best Qantas Airways deals on Denver to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Sydney that are best for you.

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

Find info about flight duration, direct flights, and airports for your flight from Denver to Sydney

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.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Denver

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year