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Cheap flights from Denver to Sydney from $470

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 4/30. 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
9:31 pm - 7:25 am
DEN
-
SYD
39h 54m
1 stop
Multiple Airlines Logo
2:00 pm - 10:02 am
SYD
-
DEN
38h 02m
2 stops
$931Multiple Airlines
Tue, Feb 17 - Fri, Feb 27
Multiple Airlines Logo
9:31 pm - 7:25 am
DEN
-
SYD
39h 54m
1 stop
Multiple Airlines Logo
2:00 pm - 10:02 am
SYD
-
DEN
38h 02m
2 stops
$938Multiple Airlines
Wed, Feb 18 - Fri, Feb 27
Multiple Airlines Logo
9:31 pm - 7:25 am
DEN
-
SYD
39h 54m
1 stop
Multiple Airlines Logo
2:00 pm - 6:00 pm
SYD
-
DEN
22h 00m
2 stops
$943Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
10:43 pm - 7:25 am
DEN
-
SYD
38h 42m
1 stop
Multiple Airlines Logo
2:00 pm - 9:44 am
SYD
-
DEN
36h 44m
2 stops
$948Multiple Airlines
Mon, Feb 23 - Mon, Mar 9
Multiple Airlines Logo
9:31 pm - 7:25 am
DEN
-
SYD
39h 54m
1 stop
Multiple Airlines Logo
2:00 pm - 9:29 am
SYD
-
DEN
37h 29m
2 stops
$950Multiple Airlines
Tue, Feb 17 - Thu, Feb 26
Multiple Airlines Logo
10:43 pm - 7:25 am
DEN
-
SYD
38h 42m
1 stop
Multiple Airlines Logo
6:00 am - 10:02 am
SYD
-
DEN
46h 02m
2 stops
$960Multiple Airlines
Sun, Feb 15 - Wed, Feb 25
Multiple Airlines Logo
10:29 pm - 7:25 am
DEN
-
SYD
39h 56m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
DEN
27h 30m
2 stops
$961Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Multiple Airlines Logo
11:30 am - 7:25 am
DEN
-
SYD
25h 55m
1 stop
Multiple Airlines Logo
6:00 am - 9:49 am
SYD
-
DEN
45h 49m
2 stops
$972Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
9:00 am - 7:25 am
DEN
-
SYD
29h 25m
1 stop
Multiple Airlines Logo
2:00 pm - 9:44 am
SYD
-
DEN
36h 44m
2 stops
$975Multiple Airlines
Wed, Mar 11 - Sun, Mar 22
Multiple Airlines Logo
10:30 pm - 7:30 am
DEN
-
SYD
40h 00m
1 stop
Multiple Airlines Logo
1:10 pm - 7:49 pm
SYD
-
DEN
22h 39m
2 stops
$980Multiple Airlines
Wed, Apr 1 - Wed, May 13

Qantas Airways flights from Denver to Sydney

Our best Qantas Airways deals on Denver to Sydney flight tickets
Qantas Airways
Feb 9
DEN12:53 pmDenver Intl
26h 07m
1 stop
SYD9:00 amSydney Kingsford Smith
Feb 28
SYD11:20 amSydney Kingsford Smith
19h 09m
1 stop
DEN12:29 pmDenver Intl
$1,393
Qantas Airways
Feb 9
DEN12:53 pmDenver Intl
24h 32m
1 stop
SYD7:25 amSydney Kingsford Smith
Feb 28
SYD11:20 amSydney Kingsford Smith
19h 09m
1 stop
DEN12:29 pmDenver Intl
$1,395
Qantas Airways
Feb 9
DEN12:53 pmDenver Intl
27h 27m
2 stops
SYD10:20 amSydney Kingsford Smith
Feb 28
SYD11:20 amSydney Kingsford Smith
26h 14m
1 stop
DEN7:34 pmDenver Intl
$1,403

Air New Zealand flights from Denver to Sydney

Our best Air New Zealand deals on Denver to Sydney flight tickets
Air New Zealand
Feb 1
DEN3:48 pmDenver Intl
24h 42m
2 stops
SYD10:30 amSydney Kingsford Smith
Feb 13
SYD11:20 amSydney Kingsford Smith
21h 14m
1 stop
DEN2:34 pmDenver Intl
$1,701
Air New Zealand
Jan 31
DEN11:35 amDenver Intl
27h 40m
1 stop
SYD9:15 amSydney Kingsford Smith
Feb 12
SYD11:45 amSydney Kingsford Smith
24h 38m
2 stops
DEN6:23 pmDenver Intl
$1,715
Air New Zealand
Jan 31
DEN7:41 pmDenver Intl
19h 34m
1 stop
SYD9:15 amSydney Kingsford Smith
Feb 12
SYD11:45 amSydney Kingsford Smith
28h 45m
2 stops
DEN10:30 pmDenver Intl
$1,716

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 28, 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

Tue 2/17

9:31 pm-7:25 am

1 stop39h 54m

Sydney Kingsford Smith

Fri 2/27

2:00 pm-10:02 am

2 stops38h 02m

$931

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 2/18

9:31 pm-7:25 am

1 stop39h 54m

Sydney Kingsford Smith

Fri 2/27

2:00 pm-10:02 am

2 stops38h 02m

$938

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/17

9:31 pm-7:25 am

1 stop39h 54m

Sydney Kingsford Smith

Tue 2/24

2:00 pm-6:00 pm

2 stops22h 00m

$943

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 2/23

10:43 pm-7:25 am

1 stop38h 42m

Sydney Kingsford Smith

Mon 3/9

2:00 pm-9:44 am

2 stops36h 44m

$948

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/17

9:31 pm-7:25 am

1 stop39h 54m

Sydney Kingsford Smith

Thu 2/26

2:00 pm-9:29 am

2 stops37h 29m

$950

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 2/15

10:43 pm-7:25 am

1 stop38h 42m

Sydney Kingsford Smith

Wed 2/25

6:00 am-10:02 am

2 stops46h 02m

$960

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 3/9

10:29 pm-7:25 am

1 stop39h 56m

Sydney Kingsford Smith

Mon 3/16

2:00 pm-12:30 am

2 stops27h 30m

$961

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 2/24

11:30 am-7:25 am

1 stop25h 55m

Sydney Kingsford Smith

Tue 3/3

6:00 am-9:49 am

2 stops45h 49m

$972

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 3/11

9:00 am-7:25 am

1 stop29h 25m

Sydney Kingsford Smith

Sun 3/22

2:00 pm-9:44 am

2 stops36h 44m

$975

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 4/1

10:30 pm-7:30 am

1 stop40h 00m

Sydney Kingsford Smith

Wed 5/13

1:10 pm-7:49 pm

2 stops22h 39m

$980

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 $866. If you are unable to visit Sydney during the month of April, then departing from Denver during the month March is also very affordable. Most momondo users find prices during this month for around $904.

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 $1,137 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 $1,004 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 January 2026, prices for Denver to Sydney flights are approximately 10% 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

19h 25m

Direct flights

None
The fastest flight from Denver to Sydney takes 19h 25m
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 19h 25m.

  • 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
8,124 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.0
222 reviews
Search Fiji Airways flights
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
11,802 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $800Free CancellationRating
7.5
978 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $825Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
577 reviews
Search Air New Zealand flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,212 reviews
Search United Airlines flights
Air CanadaPriceFrom $980Free CancellationRating
7.1
10,666 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
Penrith
Coogee
Manly
Lithgow
Leura
Cronulla
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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