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Cheap flights from Denver to Sydney from $563

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 9/11. 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
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
7:00 am - 7:30 am
DEN
-
SYD
32h 30m
1 stop
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,184Multiple Airlines
Sat, Aug 15 - Sun, Aug 23
Multiple Airlines Logo
12:17 pm - 7:30 am
DEN
-
SYD
26h 13m
1 stop
Multiple Airlines Logo
11:15 am - 12:25 am
SYD
-
DEN
31h 10m
1 stop
$1,192Multiple Airlines
Thu, Oct 22 - Thu, Nov 5
Multiple Airlines Logo
10:39 pm - 7:30 am
DEN
-
SYD
40h 51m
1 stop
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,199Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
10:39 pm - 10:30 am
DEN
-
SYD
43h 51m
2 stops
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,202Multiple Airlines
Thu, Aug 6 - Wed, Aug 19
Multiple Airlines Logo
4:20 pm - 7:30 am
DEN
-
SYD
23h 10m
1 stop
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,203Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
10:29 pm - 7:30 am
DEN
-
SYD
40h 01m
1 stop
Multiple Airlines Logo
9:40 pm - 6:12 pm
SYD
-
DEN
38h 32m
2 stops
$1,206Multiple Airlines
Sat, Oct 17 - Tue, Nov 17
Multiple Airlines Logo
10:29 pm - 9:45 am
DEN
-
SYD
42h 16m
2 stops
Multiple Airlines Logo
11:15 am - 2:37 pm
SYD
-
DEN
21h 22m
1 stop
$1,207Multiple Airlines
Thu, Oct 22 - Thu, Nov 5
Multiple Airlines Logo
10:29 pm - 7:30 am
DEN
-
SYD
40h 01m
1 stop
Multiple Airlines Logo
6:50 pm - 9:40 am
SYD
-
DEN
31h 50m
1 stop
$1,210Multiple Airlines
Mon, Oct 5 - Mon, Oct 19
Multiple Airlines Logo
10:39 pm - 7:30 am
DEN
-
SYD
40h 51m
1 stop
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,218Multiple Airlines
Tue, Aug 4 - Tue, Aug 18
Multiple Airlines Logo
4:20 pm - 10:30 am
DEN
-
SYD
26h 10m
2 stops
Multiple Airlines Logo
5:50 pm - 10:02 am
SYD
-
DEN
32h 12m
1 stop
$1,221Multiple Airlines
Fri, Aug 7 - Wed, Aug 19

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Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets
Air Canada
Jun 17
DEN11:23 amDenver Intl
27h 57m
2 stops
SYD7:20 amSydney Kingsford Smith
Aug 2
SYD9:20 amSydney Kingsford Smith
24h 42m
2 stops
DEN6:02 pmDenver Intl
$1,519
Air Canada
Jun 21
DEN9:10 amDenver Intl
30h 10m
1 stop
SYD7:20 amSydney Kingsford Smith
Jul 4
SYD9:20 amSydney Kingsford Smith
29h 52m
1 stop
DEN11:12 pmDenver Intl
$1,547
Air Canada
Jun 21
DEN11:30 amDenver Intl
27h 50m
2 stops
SYD7:20 amSydney Kingsford Smith
Jul 4
SYD9:20 amSydney Kingsford Smith
29h 52m
1 stop
DEN11:12 pmDenver Intl
$1,555

Air New Zealand flights from Denver to Sydney

Our best Air New Zealand deals on Denver to Sydney flight tickets
Air New Zealand
Jun 23
DEN3:47 pmDenver Intl
38h 03m
2 stops
SYD9:50 pmSydney Kingsford Smith
Jun 30
SYD10:20 amSydney Kingsford Smith
23h 51m
1 stop
DEN6:11 pmDenver Intl
$1,610
Air New Zealand
Jun 23
DEN3:43 pmDenver Intl
34h 27m
2 stops
SYD6:10 pmSydney Kingsford Smith
Jun 30
SYD9:30 amSydney Kingsford Smith
24h 30m
1 stop
DEN6:00 pmDenver Intl
$1,611
Air New Zealand
Jun 19
DEN1:26 pmDenver Intl
29h 14m
2 stops
SYD10:40 amSydney Kingsford Smith
Jun 27
SYD9:30 amSydney Kingsford Smith
24h 30m
1 stop
DEN6:00 pmDenver Intl
$1,684

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 June 13, 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

Sat 8/15

7:00 am-7:30 am

1 stop32h 30m

Sydney Kingsford Smith

Sun 8/23

5:50 pm-10:02 am

1 stop32h 12m

$1,184

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 10/22

12:17 pm-7:30 am

1 stop26h 13m

Sydney Kingsford Smith

Thu 11/5

11:15 am-12:25 am

1 stop31h 10m

$1,192

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 8/4

10:39 pm-7:30 am

1 stop40h 51m

Sydney Kingsford Smith

Wed 8/19

5:50 pm-10:02 am

1 stop32h 12m

$1,199

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 8/6

10:39 pm-10:30 am

2 stops43h 51m

Sydney Kingsford Smith

Wed 8/19

5:50 pm-10:02 am

1 stop32h 12m

$1,202
Quickest round-trip

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 8/3

4:20 pm-7:30 am

1 stop23h 10m

Sydney Kingsford Smith

Wed 8/19

5:50 pm-10:02 am

1 stop32h 12m

$1,203

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 10/17

10:29 pm-7:30 am

1 stop40h 01m

Sydney Kingsford Smith

Tue 11/17

9:40 pm-6:12 pm

2 stops38h 32m

$1,206

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 10/22

10:29 pm-9:45 am

2 stops42h 16m

Sydney Kingsford Smith

Thu 11/5

11:15 am-2:37 pm

1 stop21h 22m

$1,207

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 10/5

10:29 pm-7:30 am

1 stop40h 01m

Sydney Kingsford Smith

Mon 10/19

6:50 pm-9:40 am

1 stop31h 50m

$1,210

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 8/4

10:39 pm-7:30 am

1 stop40h 51m

Sydney Kingsford Smith

Tue 8/18

5:50 pm-10:02 am

1 stop32h 12m

$1,218

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 8/7

4:20 pm-10:30 am

2 stops26h 10m

Sydney Kingsford Smith

Wed 8/19

5:50 pm-10:02 am

1 stop32h 12m

$1,221

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, 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 $1,071. If you are unable to visit Sydney during the month of September, then departing from Denver during the month August is also very affordable. Most momondo users find prices during this month for around $1,155.

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 $1,309 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 $1,093 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 6% 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 June 2026, prices for Denver to Sydney flights are approximately 14% cheaper 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

24h 23m

Direct flights

None
The fastest flight from Denver to Sydney takes 24h 23m
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 24h 23m.

  • 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 $255Free CancellationRating
7.9
8,405 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.1
243 reviews
Search Fiji Airways flights
Alaska AirlinesPriceFrom $745Free CancellationRating
7.9
12,504 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $800Free CancellationRating
7.5
1,046 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $844Free CancellationRating
7.1
11,648 reviews
Search American Airlines flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,818 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,009Free CancellationRating
7.1
11,174 reviews
Search Air Canada flights
Air New ZealandPriceFrom $1,144Free CancellationRating
8.0
645 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
Katoomba
Bondi Beach
Penrith
Wollongong
Leura
Randwick
Lithgow
Manly
Coogee
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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