What is the cheapest airline that flies from Denver Intl to Sydney Kingsford Smith?

American Airlines and Alaska Airlines are the most popular carriers operating from Denver Intl to Sydney Kingsford Smith

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 refresh daily.

How many operators does momondo search for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?

As of May 2026, there is 1 operator 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?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for 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 travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$616 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 low for flights on this route. Typical prices usually range from $2,138 to $1,574. The lowest price recently found on this route was $1,308.

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Find the cheapest flights from Denver to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:00 - 11:50

DEN

SYD

36h 50m

2 stops

06:00 - 00:40

SYD

DEN

34h 40m

2 stops

$1,308Multiple Airlines

Fri, 21 Aug - Sun, 30 Aug

18:08 - 07:05

DEN

SYD

20h 57m

1 stop

09:10 - 11:01

SYD

DEN

17h 51m

1 stop

$1,391American Airlines

Tue, 2 Jun - Tue, 16 Jun

18:08 - 07:05

DEN

SYD

20h 57m

1 stop

09:10 - 17:20

SYD

DEN

24h 10m

2 stops

$1,396American Airlines

Tue, 2 Jun - Tue, 16 Jun

07:00 - 22:10

DEN

SYD

47h 10m

2 stops

13:15 - 00:40

SYD

DEN

27h 25m

2 stops

$1,398Multiple Airlines

Sun, 23 Aug - Sat, 5 Sep

18:26 - 09:20

DEN

SYD

22h 54m

2 stops

09:10 - 17:56

SYD

DEN

24h 46m

1 stop

$1,420American Airlines

Mon, 24 Aug - Sun, 6 Sep

18:19 - 09:20

DEN

SYD

23h 01m

2 stops

09:10 - 11:01

SYD

DEN

17h 51m

1 stop

$1,421American Airlines

Tue, 19 May - Wed, 3 Jun

18:19 - 09:20

DEN

SYD

23h 01m

2 stops

09:10 - 18:16

SYD

DEN

25h 06m

2 stops

$1,427American Airlines

Tue, 19 May - Wed, 3 Jun

18:26 - 09:20

DEN

SYD

22h 54m

2 stops

17:30 - 23:59

SYD

DEN

22h 29m

2 stops

$1,451American Airlines

Wed, 26 Aug - Tue, 1 Sep

11:39 - 07:05

DEN

SYD

27h 26m

1 stop

09:10 - 11:09

SYD

DEN

17h 59m

1 stop

$1,458American Airlines

Thu, 27 Aug - Sun, 6 Sep

11:31 - 07:05

DEN

SYD

27h 34m

1 stop

09:10 - 11:01

SYD

DEN

17h 51m

1 stop

$1,460American Airlines

Wed, 27 May - Fri, 5 Jun

American Airlines flights from Denver to Sydney

Our best American Airlines deals on Denver to Sydney flight tickets

American Airlines

2 June

DEN18:08Denver Intl

20h 57m

1 stop

SYD07:05Sydney Kingsford Smith

16 June

SYD09:10Sydney Kingsford Smith

17h 51m

1 stop

DEN11:01Denver Intl

$1,391

American Airlines

2 June

DEN18:08Denver Intl

20h 57m

1 stop

SYD07:05Sydney Kingsford Smith

16 June

SYD09:10Sydney Kingsford Smith

24h 10m

2 stops

DEN17:20Denver Intl

$1,396

American Airlines

24 Aug

DEN18:26Denver Intl

22h 54m

2 stops

SYD09:20Sydney Kingsford Smith

6 Sept

SYD09:10Sydney Kingsford Smith

24h 46m

1 stop

DEN17:56Denver Intl

$1,420

Qantas Airways flights from Denver to Sydney

Our best Qantas Airways deals on Denver to Sydney flight tickets

Qantas Airways

16 May

DEN20:35Denver Intl

51h 25m

2 stops

SYD16:00Sydney Kingsford Smith

31 May

SYD09:10Sydney Kingsford Smith

24h 27m

1 stop

DEN17:37Denver Intl

$1,695

Qantas Airways

13 May

DEN12:41Denver Intl

26h 24m

1 stop

SYD07:05Sydney Kingsford Smith

22 May

SYD09:10Sydney Kingsford Smith

17h 51m

1 stop

DEN11:01Denver Intl

$1,735

Qantas Airways

16 May

DEN20:35Denver Intl

51h 25m

2 stops

SYD16:00Sydney Kingsford Smith

31 May

SYD09:55Sydney Kingsford Smith

41h 06m

2 stops

DEN11:01Denver Intl

$1,737

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 21/8

07:00-11:50

2 stops36h 50m

Sydney Kingsford Smith

Sun 30/8

06:00-00:40

2 stops34h 40m

$1,308

Fastest return journey

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/6

18:08-07:05

1 stop20h 57m

Sydney Kingsford Smith

Tue 16/6

09:10-11:01

1 stop17h 51m

$1,391

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/6

18:08-07:05

1 stop20h 57m

Sydney Kingsford Smith

Tue 16/6

09:10-17:20

2 stops24h 10m

$1,396

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 23/8

07:00-22:10

2 stops47h 10m

Sydney Kingsford Smith

Sat 5/9

13:15-00:40

2 stops27h 25m

$1,398

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 24/8

18:26-09:20

2 stops22h 54m

Sydney Kingsford Smith

Sun 6/9

09:10-17:56

1 stop24h 46m

$1,420

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 19/5

18:19-09:20

2 stops23h 01m

Sydney Kingsford Smith

Wed 3/6

09:10-11:01

1 stop17h 51m

$1,421

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 19/5

18:19-09:20

2 stops23h 01m

Sydney Kingsford Smith

Wed 3/6

09:10-18:16

2 stops25h 06m

$1,427

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 26/8

18:26-09:20

2 stops22h 54m

Sydney Kingsford Smith

Tue 1/9

17:30-23:59

2 stops22h 29m

$1,451

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 27/8

11:39-07:05

1 stop27h 26m

Sydney Kingsford Smith

Sun 6/9

09:10-11:09

1 stop17h 59m

$1,458

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 27/5

11:31-07:05

1 stop27h 34m

Sydney Kingsford Smith

Fri 5/6

09:10-11:01

1 stop17h 51m

$1,460

Flights are sorted by cheapest return 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

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

What is the cheapest month to fly to Sydney?

The month of April is, on average, the cheapest month to fly to Sydney from Denver, with most prices found around $1,634. If you aren’t able to travel to Sydney during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,645.

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 $1,876 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Denver for as low as $1,602 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 42% 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 May 2026, prices for Denver to Sydney flights are approximately 4% 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 return 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 45m
Direct flights	None

The fastest flight from Denver to Sydney takes 19h 45m

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?
There are 13398.4 km between Denver Intl and Sydney Kingsford Smith. Flights usually cover this in 19h 45m, depending on flying conditions and air traffic around both airports.
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 refresh daily.
How many operators does momondo search for flights from Denver Intl Airport to Sydney Kingsford Smith Airport?
As of May 2026, there is 1 operator 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?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for 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 travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Denver to Sydney?
momondo data reveals that the most frequently booked airline on the route from Denver to Sydney is Qantas Airways, representing 100% of all bookings.

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
Qantas Airways	PriceFrom $1,246	Free cancellation	Rating 7.5 1,033 reviews		Search Qantas Airways flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Coogee

Leura

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Denver to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Sydney for you.

Can I find flights from Denver to Sydney with flexible booking policies on momondo?

momondo does allow users to show only those flights to Sydney from Denver which offer a flexible booking policy as well as other useful filters and features.

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?

Price alerts on flights to Sydney from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.