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Cheap flights from Denver to Sydney from $489

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 1/31. 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
6:05 am - 12:35 pm
DEN
-
SYD
36h 30m2 stops
Multiple Airlines Logo
2:00 pm - 11:29 pm
SYD
-
DEN
27h 29m2 stops
$830Multiple Airlines
Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
6:10 am - 12:45 pm
DEN
-
SYD
37h 35m2 stops
Multiple Airlines Logo
1:15 pm - 12:40 am
SYD
-
DEN
27h 25m2 stops
$831Multiple Airlines
Wed, Apr 1 - Tue, Apr 7
Multiple Airlines Logo
11:50 am - 12:35 pm
DEN
-
SYD
30h 45m2 stops
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
DEN
27h 30m2 stops
$846Multiple Airlines
Sat, Feb 28 - Sat, Mar 14
Multiple Airlines Logo
9:00 am - 12:35 pm
DEN
-
SYD
34h 35m2 stops
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
DEN
27h 30m2 stops
$902Multiple Airlines
Sat, Mar 14 - Wed, Mar 18
Multiple Airlines Logo
11:00 am - 12:35 pm
DEN
-
SYD
31h 35m2 stops
Multiple Airlines Logo
2:00 pm - 11:29 pm
SYD
-
DEN
27h 29m2 stops
$922Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
9:00 am - 12:35 pm
DEN
-
SYD
34h 35m2 stops
Multiple Airlines Logo
2:15 pm - 12:30 am
SYD
-
DEN
27h 15m2 stops
$926Multiple Airlines
Sat, Mar 21 - Sun, Mar 29
Multiple Airlines Logo
12:00 pm - 7:25 am
DEN
-
SYD
25h 25m1 stop
Multiple Airlines Logo
11:20 am - 6:08 pm
SYD
-
DEN
24h 48m1 stop
$968Multiple Airlines
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
11:00 am - 7:25 am
DEN
-
SYD
26h 25m1 stop
Multiple Airlines Logo
11:20 am - 11:29 pm
SYD
-
DEN
30h 09m1 stop
$977Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
11:00 am - 7:25 am
DEN
-
SYD
26h 25m1 stop
Multiple Airlines Logo
11:20 am - 6:00 pm
SYD
-
DEN
24h 40m1 stop
$994Multiple Airlines
Thu, Feb 5 - Tue, Feb 10
Multiple Airlines Logo
6:10 am - 8:05 am
DEN
-
SYD
32h 55m1 stop
Multiple Airlines Logo
9:10 am - 12:40 am
SYD
-
DEN
31h 30m1 stop
$1,001Multiple Airlines
Wed, Apr 1 - Tue, Apr 7

Qantas Airways flights from Denver to Sydney

Our best Qantas Airways deals on Denver to Sydney flight tickets
Qantas Airways
Jan 31
DEN7:23 pmDenver Intl
19h 37m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 12
SYD11:20 amSydney Kingsford Smith
19h 09m
1 stop
DEN12:29 pmDenver Intl
$1,132
Find similar
Qantas Airways
Feb 13
DEN8:04 pmDenver Intl
18h 56m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 22
SYD5:45 pmSydney Kingsford Smith
19h 49m
1 stop
DEN7:34 pmDenver Intl
$1,146
Find similar
Qantas Airways
Jan 10
DEN12:53 pmDenver Intl
24h 32m
1 stop
SYD7:25 amSydney Kingsford Smith
Jan 24
SYD11:20 amSydney Kingsford Smith
18h 58m
1 stop
DEN12:18 pmDenver Intl
$1,957
Find similar

Air Canada flights from Denver to Sydney

Our best Air Canada deals on Denver to Sydney flight tickets
Air Canada
Mar 2
DEN3:56 pmDenver Intl
23h 39m
1 stop
SYD9:35 amSydney Kingsford Smith
Mar 8
SYD11:20 amSydney Kingsford Smith
38h 34m
2 stops
DEN7:54 amDenver Intl
$1,179
Find similar
Air Canada
Mar 2
DEN7:05 pmDenver Intl
20h 30m
1 stop
SYD9:35 amSydney Kingsford Smith
Mar 9
SYD11:20 amSydney Kingsford Smith
38h 34m
2 stops
DEN8:54 amDenver Intl
$1,184
Find similar
Air Canada
Jan 12
DEN7:05 pmDenver Intl
25h 35m
2 stops
SYD2:40 pmSydney Kingsford Smith
Jan 23
SYD11:20 amSydney Kingsford Smith
24h 47m
2 stops
DEN6:07 pmDenver Intl
$1,792
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 January 1, 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

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 1/26

6:05 am-12:35 pm

2 stops36h 30m

Sydney Kingsford Smith

Mon 2/2

2:00 pm-11:29 pm

2 stops27h 29m

$830

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 4/1

6:10 am-12:45 pm

2 stops37h 35m

Sydney Kingsford Smith

Tue 4/7

1:15 pm-12:40 am

2 stops27h 25m

$831

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 2/28

11:50 am-12:35 pm

2 stops30h 45m

Sydney Kingsford Smith

Sat 3/14

2:00 pm-12:30 am

2 stops27h 30m

$846

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 3/14

9:00 am-12:35 pm

2 stops34h 35m

Sydney Kingsford Smith

Wed 3/18

2:00 pm-12:30 am

2 stops27h 30m

$902

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 1/29

11:00 am-12:35 pm

2 stops31h 35m

Sydney Kingsford Smith

Thu 2/5

2:00 pm-11:29 pm

2 stops27h 29m

$922

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 3/21

9:00 am-12:35 pm

2 stops34h 35m

Sydney Kingsford Smith

Sun 3/29

2:15 pm-12:30 am

2 stops27h 15m

$926

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sat 1/31

12:00 pm-7:25 am

1 stop25h 25m

Sydney Kingsford Smith

Sat 2/7

11:20 am-6:08 pm

1 stop24h 48m

$968

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 1/29

11:00 am-7:25 am

1 stop26h 25m

Sydney Kingsford Smith

Thu 2/5

11:20 am-11:29 pm

1 stop30h 09m

$977

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 2/5

11:00 am-7:25 am

1 stop26h 25m

Sydney Kingsford Smith

Tue 2/10

11:20 am-6:00 pm

1 stop24h 40m

$994

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 4/1

6:10 am-8:05 am

1 stop32h 55m

Sydney Kingsford Smith

Tue 4/7

9:10 am-12:40 am

1 stop31h 30m

$1,001

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, 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 $865.

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 $1,076 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 $997 on momondo.

Can stopping save me money on Denver to Sydney flights?

You could potentially save up to 5% 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 January 2026, prices for Denver to Sydney flights are approximately 57% 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

20h 30m

Direct flights

None
The fastest flight from Denver to Sydney takes 20h 30m
There are no direct flights from Denver to Sydney. There are no popular flight routes from Denver to Sydney.
Search flight deals

  • 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 20h 30m.

  • 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 $277Free CancellationRating
7.9
8,017 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.0
212 reviews
Search Fiji Airways flights
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
11,597 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $802Free CancellationRating
7.5
960 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $825Free CancellationRating
7.2
11,071 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
563 reviews
Search Air New Zealand flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,131 reviews
Search United Airlines flights
Air CanadaPriceFrom $980Free CancellationRating
7.1
10,571 reviews
Search Air Canada 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
Manly
Penrith
Cronulla
Lithgow
Leura
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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