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Cheap flights from Denver to Sydney from $516

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 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:40 pm - 7:25 amDEN-SYD
23h 45m1 stop
Multiple Airlines Logo
11:20 am - 7:22 pmSYD-DEN
26h 02m1 stop
$1,025Multiple Airlines
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Sun, Dec 7 - Sun, Dec 14
Multiple Airlines Logo
10:00 am - 9:00 amDEN-SYD
29h 00m2 stops
Multiple Airlines Logo
5:45 pm - 12:17 amSYD-DEN
24h 32m1 stop
$1,029Multiple Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 12
Multiple Airlines Logo
5:01 pm - 7:25 amDEN-SYD
20h 24m1 stop
Multiple Airlines Logo
11:20 am - 12:17 amSYD-DEN
30h 57m1 stop
$1,046Multiple Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 12
Multiple Airlines Logo
12:24 pm - 7:25 amDEN-SYD
25h 01m1 stop
Multiple Airlines Logo
11:20 am - 10:12 amSYD-DEN
40h 52m2 stops
$1,056Multiple Airlines
Find Deal
Thu, Nov 27 - Tue, Dec 9
Fiji Airways Logo
5:29 pm - 12:35 pmDEN-SYD
25h 06m2 stops
Fiji Airways Logo
1:15 pm - 7:53 pmSYD-DEN
22h 38m2 stops
$1,109Fiji Airways
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Sat, Jan 31 - Sat, May 16
Fiji Airways Logo
6:53 pm - 10:25 pmDEN-SYD
34h 32m2 stops
Fiji Airways Logo
1:15 pm - 7:53 pmSYD-DEN
22h 38m2 stops
$1,157Fiji Airways
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Thu, Apr 2 - Sat, Apr 18
Air Canada Logo
11:21 am - 7:20 amDEN-SYD
27h 59m2 stops
Air Canada Logo
9:20 am - 12:38 pmSYD-DEN
19h 18m1 stop
$1,198Air Canada
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Tue, Apr 14 - Tue, Apr 21
Air Canada Logo
7:05 pm - 7:20 amDEN-SYD
20h 15m1 stop
Air Canada Logo
9:20 am - 12:38 pmSYD-DEN
19h 18m1 stop
$1,203Air Canada
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Sun, Apr 12 - Tue, Apr 21
Air New Zealand Logo
11:30 am - 8:45 amDEN-SYD
27h 15m2 stops
Air New Zealand Logo
1:55 pm - 6:19 pmSYD-DEN
22h 24m2 stops
$1,248Air New Zealand
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Sat, Dec 6 - Sun, Dec 21
Qantas Airways Logo
7:23 pm - 9:00 amDEN-SYD
19h 37m1 stop
Qantas Airways Logo
5:45 pm - 6:53 pmSYD-DEN
19h 08m1 stop
$1,280Qantas Airways
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Fri, Jan 23 - Wed, Feb 4

Fiji Airways flights from Denver to Sydney

Our best Fiji Airways deals on Denver to Sydney flight tickets
Fiji Airways
Jan 31
DEN5:29 pmDenver Intl
25h 06m
2 stops
SYD12:35 pmSydney Kingsford Smith
May 16
SYD1:15 pmSydney Kingsford Smith
22h 38m
2 stops
DEN7:53 pmDenver Intl
$1,109
Find similar
Fiji Airways
Apr 2
DEN6:53 pmDenver Intl
34h 32m
2 stops
SYD10:25 pmSydney Kingsford Smith
Apr 18
SYD1:15 pmSydney Kingsford Smith
22h 38m
2 stops
DEN7:53 pmDenver Intl
$1,157
Find similar
Fiji Airways
Apr 18
DEN6:52 pmDenver Intl
24h 53m
2 stops
SYD11:45 amSydney Kingsford Smith
May 5
SYD6:00 amSydney Kingsford Smith
29h 53m
2 stops
DEN7:53 pmDenver Intl
$1,184
Find similar

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets
Air Canada
Apr 14
DEN11:21 amDenver Intl
27h 59m
2 stops
SYD7:20 amSydney Kingsford Smith
Apr 21
SYD9:20 amSydney Kingsford Smith
19h 18m
1 stop
DEN12:38 pmDenver Intl
$1,198
Find similar
Air Canada
Apr 12
DEN7:05 pmDenver Intl
20h 15m
1 stop
SYD7:20 amSydney Kingsford Smith
Apr 21
SYD9:20 amSydney Kingsford Smith
19h 18m
1 stop
DEN12:38 pmDenver Intl
$1,203
Find similar
Air Canada
Apr 14
DEN11:21 amDenver Intl
27h 59m
2 stops
SYD7:20 amSydney Kingsford Smith
Apr 21
SYD7:00 amSydney Kingsford Smith
21h 38m
2 stops
DEN12:38 pmDenver Intl
$1,213
Find similar

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 November 10, 2025.
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

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 12/7

1:40 pm-7:25 am

1 stop23h 45m

Sydney Kingsford Smith

Sun 12/14

11:20 am-7:22 pm

1 stop26h 02m

$1,025

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 12/2

10:00 am-9:00 am

2 stops29h 00m

Sydney Kingsford Smith

Fri 12/12

5:45 pm-12:17 am

1 stop24h 32m

$1,029

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 12/2

5:01 pm-7:25 am

1 stop20h 24m

Sydney Kingsford Smith

Fri 12/12

11:20 am-12:17 am

1 stop30h 57m

$1,046

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 11/27

12:24 pm-7:25 am

1 stop25h 01m

Sydney Kingsford Smith

Tue 12/9

11:20 am-10:12 am

2 stops40h 52m

$1,056

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 1/31

5:29 pm-12:35 pm

2 stops25h 06m

Sydney Kingsford Smith

Sat 5/16

1:15 pm-7:53 pm

2 stops22h 38m

$1,109

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 4/2

6:53 pm-10:25 pm

2 stops34h 32m

Sydney Kingsford Smith

Sat 4/18

1:15 pm-7:53 pm

2 stops22h 38m

$1,157

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 4/14

11:21 am-7:20 am

2 stops27h 59m

Sydney Kingsford Smith

Tue 4/21

9:20 am-12:38 pm

1 stop19h 18m

$1,198

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 4/12

7:05 pm-7:20 am

1 stop20h 15m

Sydney Kingsford Smith

Tue 4/21

9:20 am-12:38 pm

1 stop19h 18m

$1,203

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 12/6

11:30 am-8:45 am

2 stops27h 15m

Sydney Kingsford Smith

Sun 12/21

1:55 pm-6:19 pm

2 stops22h 24m

$1,248

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 1/23

7:23 pm-9:00 am

1 stop19h 37m

Sydney Kingsford Smith

Wed 2/4

5:45 pm-6:53 pm

1 stop19h 08m

$1,280

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Sydney?

In general, April 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 $864. If you are unable to visit Sydney during the month of April, then departing from Denver during the month May is also very affordable. Most momondo users find prices during this month for around $864.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Denver to Sydney is on a Tuesday when prices can be found for as low as $1,197. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,362.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is at noon. momondo users have found flights departing from Denver to Sydney at noon for as low as $933. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,292. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $1,029 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 $906 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 41% 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 November 2025, prices for Denver to Sydney flights are approximately 38% 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

Direct flights

None
There are no direct flights from Denver to Sydney. There are no popular flight routes from Denver to Sydney.
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  • 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 37m.

  • 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
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
11,267 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $806Free CancellationRating
7.5
933 reviews
Search Qantas Airways flights
DeltaPriceFrom $830Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $832Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
525 reviews
Search Air New Zealand flights
Air CanadaPriceFrom $1,009Free CancellationRating
7.1
10,436 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,260Free CancellationRating
7.4
9,012 reviews
Search United Airlines flights

Traveling to a place near Sydney?

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