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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 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:42 pm - 11:50 amDEN  Denver Intl-SYD Sydney Kingsford Smith
31h 08m2 stops Los Angeles Nadi
Multiple Airlines Logo
6:05 am - 11:44 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
34h 39m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
$972Multiple Airlines
Wed, Sep 16 - Wed, Oct 7
Multiple Airlines Logo
12:42 pm - 11:50 amDEN  Denver Intl-SYD Sydney Kingsford Smith
31h 08m2 stops Los Angeles Nadi
Multiple Airlines Logo
2:15 pm - 11:44 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
26h 29m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
$982Multiple Airlines
Wed, Sep 16 - Wed, Oct 7
Air New Zealand Logo
4:05 pm - 8:35 amDEN  Denver Intl-SYD Sydney Kingsford Smith
23h 30m2 stops Los Angeles Auckland Intl
Air New Zealand Logo
2:05 pm - 5:56 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
21h 51m2 stops Auckland Intl Los Angeles
$1,128Air New Zealand
Mon, Oct 26 - Wed, Nov 11
Air New Zealand Logo
4:05 pm - 8:35 amDEN  Denver Intl-SYD Sydney Kingsford Smith
23h 30m2 stops Los Angeles Auckland Intl
Air New Zealand Logo
2:05 pm - 5:56 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
21h 51m2 stops Auckland Intl Los Angeles
$1,136Air New Zealand
Mon, Oct 26 - Wed, Nov 11
Air Canada Logo
11:23 am - 7:20 amDEN  Denver Intl-SYD Sydney Kingsford Smith
27h 57m2 stops Edmonton Vancouver Intl
Air Canada Logo
9:20 am - 6:04 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
24h 44m2 stops Vancouver Intl Edmonton
$1,407Air Canada
Thu, Sep 24 - Wed, Sep 30
Air Canada Logo
7:50 pm - 7:20 amDEN  Denver Intl-SYD Sydney Kingsford Smith
19h 30m1 stop Vancouver Intl
Air Canada Logo
9:20 am - 4:58 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
23h 38m1 stop Vancouver Intl
$1,408Air Canada
Sun, Sep 20 - Mon, Sep 28
Delta Logo
7:55 pm - 6:50 amDEN  Denver Intl-SYD Sydney Kingsford Smith
18h 55m1 stop Los Angeles
Delta Logo
9:15 am - 11:22 amSYD  Sydney Kingsford Smith-DEN Denver Intl
18h 07m1 stop Los Angeles
$1,509Delta
Wed, Sep 9 - Mon, Sep 21
Delta Logo
7:49 pm - 8:30 amDEN  Denver Intl-SYD Sydney Kingsford Smith
18h 41m1 stop Los Angeles
Delta Logo
10:40 am - 11:47 amSYD  Sydney Kingsford Smith-DEN Denver Intl
19h 07m1 stop Los Angeles
$1,509Delta
Tue, Nov 17 - Tue, Dec 1
United Airlines Logo
5:52 pm - 9:20 amDEN  Denver Intl-SYD Sydney Kingsford Smith
21h 28m1 stop San Francisco
United Airlines Logo
1:20 pm - 6:18 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
22h 58m1 stop San Francisco
$1,758United Airlines
Tue, Dec 8 - Wed, Dec 30
United Airlines Logo
7:45 pm - 9:05 amDEN  Denver Intl-SYD Sydney Kingsford Smith
19h 20m1 stop Los Angeles
United Airlines Logo
1:20 pm - 4:28 pmSYD  Sydney Kingsford Smith-DEN Denver Intl
21h 08m1 stop San Francisco
$1,758United Airlines
Wed, Dec 9 - Sun, Dec 27

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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
DEN4:05 pmDenver Intl
23h 30m
2 stops
SYD8:35 amSydney Kingsford Smith
Nov 11
SYD2:05 pmSydney Kingsford Smith
21h 51m
2 stops
DEN5:56 pmDenver Intl
$1,128
Air New Zealand
Oct 26
DEN4:05 pmDenver Intl
23h 30m
2 stops
SYD8:35 amSydney Kingsford Smith
Nov 11
SYD2:05 pmSydney Kingsford Smith
21h 51m
2 stops
DEN5:56 pmDenver Intl
$1,136
Air New Zealand
Aug 19
DEN5:45 pmDenver Intl
23h 00m
2 stops
SYD8:45 amSydney Kingsford Smith
Sep 9
SYD11:55 amSydney Kingsford Smith
26h 23m
2 stops
DEN10:18 pmDenver Intl
$1,137

Delta flights from Denver to Sydney

Our best Delta deals on Denver to Sydney flight tickets
Delta
Aug 24
DEN7:55 pmDenver Intl
18h 55m
1 stop
SYD6:50 amSydney Kingsford Smith
Sep 21
SYD9:15 amSydney Kingsford Smith
18h 07m
1 stop
DEN11:22 amDenver Intl
$1,509
Delta
Aug 24
DEN12:29 pmDenver Intl
26h 21m
1 stop
SYD6:50 amSydney Kingsford Smith
Sep 6
SYD9:15 amSydney Kingsford Smith
25h 07m
1 stop
DEN6:22 pmDenver Intl
$1,510
Delta
Aug 16
DEN6:20 amDenver Intl
32h 30m
2 stops
SYD6:50 amSydney Kingsford Smith
Aug 30
SYD9:15 amSydney Kingsford Smith
30h 43m
2 stops
DEN11:58 pmDenver Intl
$1,514

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 August 15, 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 Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/16

12:42 pm-11:50 am

2 stops31h 08m

Sydney Kingsford Smith

Wed 10/7

6:05 am-11:44 pm

3 stops34h 39m

$972

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/16

12:42 pm-11:50 am

2 stops31h 08m

Sydney Kingsford Smith

Wed 10/7

2:15 pm-11:44 pm

3 stops26h 29m

$982

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

4:05 pm-8:35 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 11/11

2:05 pm-5:56 pm

2 stops21h 51m

$1,128

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 10/26

4:05 pm-8:35 am

2 stops23h 30m

Sydney Kingsford Smith

Wed 11/11

2:05 pm-5:56 pm

2 stops21h 51m

$1,136

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Thu 9/24

11:23 am-7:20 am

2 stops27h 57m

Sydney Kingsford Smith

Wed 9/30

9:20 am-6:04 pm

2 stops24h 44m

$1,407

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 9/20

7:50 pm-7:20 am

1 stop19h 30m

Sydney Kingsford Smith

Mon 9/28

9:20 am-4:58 pm

1 stop23h 38m

$1,408
Quickest round-trip

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 9/9

7:55 pm-6:50 am

1 stop18h 55m

Sydney Kingsford Smith

Mon 9/21

9:15 am-11:22 am

1 stop18h 07m

$1,509

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 11/17

7:49 pm-8:30 am

1 stop18h 41m

Sydney Kingsford Smith

Tue 12/1

10:40 am-11:47 am

1 stop19h 07m

$1,509

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Tue 12/8

5:52 pm-9:20 am

1 stop21h 28m

Sydney Kingsford Smith

Wed 12/30

1:20 pm-6:18 pm

1 stop22h 58m

$1,758

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 12/9

7:45 pm-9:05 am

1 stop19h 20m

Sydney Kingsford Smith

Sun 12/27

1:20 pm-4:28 pm

1 stop21h 08m

$1,758

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,054 to $1,804.
The lowest price recently found on this route was $972.

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 $1,363 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 $1,068 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 10% 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 August 2026, prices for Denver to Sydney flights are approximately 78% 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

22h 50m

Direct flights

None
The fastest flight from Denver to Sydney takes 22h 50m
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 22h 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?

  • 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 $215Free CancellationRating
7.8
8,508 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.0
254 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom $849Free CancellationRating
7.5
1,083 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
10,110 reviews
Search United Airlines flights
American AirlinesPriceFrom $895Free CancellationRating
7.1
11,941 reviews
Search American Airlines flights
Air CanadaPriceFrom $1,029Free CancellationRating
7.1
11,479 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,144Free CancellationRating
8.0
662 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
Parramatta
Bondi Beach
Wollongong
Penrith
Katoomba
Leura
Cronulla
Randwick
Manly
Lithgow
Coogee
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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