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Cheap flights from Denver to Sydney from $527

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 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:32 pm - 1:10 pm
DEN
-
SYD
32h 38m
2 stops
Multiple Airlines Logo
1:15 pm - 1:29 am
SYD
-
DEN
28h 14m
3 stops
$1,166Multiple Airlines
Fri, Jul 3 - Sun, Aug 2
Multiple Airlines Logo
7:25 am - 7:30 am
DEN
-
SYD
32h 05m
1 stop
Multiple Airlines Logo
5:50 pm - 1:13 pm
SYD
-
DEN
35h 23m
1 stop
$1,218Multiple Airlines
Wed, Jul 8 - Tue, Jul 21
Multiple Airlines Logo
7:25 am - 7:30 am
DEN
-
SYD
32h 05m
1 stop
Multiple Airlines Logo
5:50 pm - 10:03 am
SYD
-
DEN
32h 13m
1 stop
$1,237Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
7:25 am - 7:30 am
DEN
-
SYD
32h 05m
1 stop
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,278Multiple Airlines
Wed, Aug 5 - Mon, Aug 17
Multiple Airlines Logo
7:25 am - 7:30 am
DEN
-
SYD
32h 05m
1 stop
Multiple Airlines Logo
8:45 pm - 1:13 pm
SYD
-
DEN
32h 28m
2 stops
$1,282Multiple Airlines
Wed, Jul 8 - Tue, Jul 21
Multiple Airlines Logo
12:32 pm - 7:30 am
DEN
-
SYD
26h 58m
1 stop
Multiple Airlines Logo
5:50 pm - 11:22 pm
SYD
-
DEN
21h 32m
1 stop
$1,299Multiple Airlines
Sat, Jun 13 - Tue, Jul 7
Multiple Airlines Logo
10:39 pm - 7:30 am
DEN
-
SYD
40h 51m
1 stop
Multiple Airlines Logo
5:50 pm - 12:40 am
SYD
-
DEN
22h 50m
1 stop
$1,304Multiple Airlines
Thu, Aug 13 - Thu, Aug 27
Multiple Airlines Logo
7:25 am - 7:40 am
DEN
-
SYD
32h 15m
2 stops
Multiple Airlines Logo
5:50 pm - 10:03 am
SYD
-
DEN
32h 13m
1 stop
$1,306Multiple Airlines
Wed, Jul 8 - Tue, Jul 21
Multiple Airlines Logo
3:20 pm - 7:10 pm
DEN
-
SYD
35h 50m
2 stops
Multiple Airlines Logo
5:50 pm - 12:40 am
SYD
-
DEN
22h 50m
1 stop
$1,315Multiple Airlines
Thu, Aug 13 - Thu, Aug 27
Multiple Airlines Logo
2:00 pm - 7:30 am
DEN
-
SYD
25h 30m
1 stop
Multiple Airlines Logo
5:50 pm - 11:22 pm
SYD
-
DEN
21h 32m
1 stop
$1,317Multiple Airlines
Mon, Jun 8 - Tue, Jul 7

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets
Air Canada
Jun 10
DEN7:50 pmDenver Intl
19h 30m
1 stop
SYD7:20 amSydney Kingsford Smith
Jul 8
SYD9:20 amSydney Kingsford Smith
27h 02m
2 stops
DEN8:22 pmDenver Intl
$1,518
Air Canada
Jun 10
DEN11:30 amDenver Intl
27h 50m
2 stops
SYD7:20 amSydney Kingsford Smith
Jul 7
SYD9:20 amSydney Kingsford Smith
23h 53m
1 stop
DEN5:13 pmDenver Intl
$1,519
Air Canada
Jun 9
DEN7:50 pmDenver Intl
19h 30m
1 stop
SYD7:20 amSydney Kingsford Smith
Jul 8
SYD9:20 amSydney Kingsford Smith
23h 53m
1 stop
DEN5:13 pmDenver Intl
$1,520

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 29, 2026.
Use the filters below to find and compare flights from Denver to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 7/3

12:32 pm-1:10 pm

2 stops32h 38m

Sydney Kingsford Smith

Sun 8/2

1:15 pm-1:29 am

3 stops28h 14m

$1,166

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 7/8

7:25 am-7:30 am

1 stop32h 05m

Sydney Kingsford Smith

Tue 7/21

5:50 pm-1:13 pm

1 stop35h 23m

$1,218

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/5

7:25 am-7:30 am

1 stop32h 05m

Sydney Kingsford Smith

Wed 8/12

5:50 pm-10:03 am

1 stop32h 13m

$1,237

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 8/5

7:25 am-7:30 am

1 stop32h 05m

Sydney Kingsford Smith

Mon 8/17

5:50 pm-10:02 am

1 stop32h 12m

$1,278

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 7/8

7:25 am-7:30 am

1 stop32h 05m

Sydney Kingsford Smith

Tue 7/21

8:45 pm-1:13 pm

2 stops32h 28m

$1,282

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 6/13

12:32 pm-7:30 am

1 stop26h 58m

Sydney Kingsford Smith

Tue 7/7

5:50 pm-11:22 pm

1 stop21h 32m

$1,299

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 8/13

10:39 pm-7:30 am

1 stop40h 51m

Sydney Kingsford Smith

Thu 8/27

5:50 pm-12:40 am

1 stop22h 50m

$1,304

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 7/8

7:25 am-7:40 am

2 stops32h 15m

Sydney Kingsford Smith

Tue 7/21

5:50 pm-10:03 am

1 stop32h 13m

$1,306

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 8/13

3:20 pm-7:10 pm

2 stops35h 50m

Sydney Kingsford Smith

Thu 8/27

5:50 pm-12:40 am

1 stop22h 50m

$1,315
Quickest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 6/8

2:00 pm-7:30 am

1 stop25h 30m

Sydney Kingsford Smith

Tue 7/7

5:50 pm-11:22 pm

1 stop21h 32m

$1,317

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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

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, August 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 $1,124. If you are unable to visit Sydney during the month of August, 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 $1,335 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 $1,130 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 45% 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 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

21h 00m

Direct flights

None
The fastest flight from Denver to Sydney takes 21h 00m
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 21h 00m.

  • 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?

  • 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?

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
DeltaPriceFrom $243Free CancellationRating
7.9
8,420 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.1
243 reviews
Search Fiji Airways flights
Alaska AirlinesPriceFrom $745Free CancellationRating
7.9
12,430 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $800Free CancellationRating
7.5
1,043 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $844Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,762 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,009Free CancellationRating
7.1
11,096 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,144Free CancellationRating
8.0
648 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Parramatta
Katoomba
Penrith
Wollongong
Leura
Randwick
Lithgow
Coogee
Manly
Cronulla
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.

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