Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Sydney from $405

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 5/13. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:50 am - 12:35 pm
DEN
-
SYD
30h 45m
2 stops
Multiple Airlines Logo
6:00 am - 11:30 pm
SYD
-
DEN
35h 30m
2 stops
$862Multiple Airlines
Sat, Feb 28 - Sun, Mar 8
Multiple Airlines Logo
6:00 am - 12:35 pm
DEN
-
SYD
36h 35m
2 stops
Multiple Airlines Logo
6:00 am - 11:30 pm
SYD
-
DEN
35h 30m
2 stops
$874Multiple Airlines
Sun, Mar 1 - Sun, Mar 8
Multiple Airlines Logo
6:00 am - 12:35 pm
DEN
-
SYD
36h 35m
2 stops
Multiple Airlines Logo
2:00 pm - 11:30 pm
SYD
-
DEN
27h 30m
2 stops
$884Multiple Airlines
Sun, Mar 1 - Sun, Mar 8
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
$915Multiple Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
6:00 am - 7:25 am
DEN
-
SYD
31h 25m
1 stop
Multiple Airlines Logo
2:00 pm - 9:44 am
SYD
-
DEN
37h 44m
2 stops
$923Multiple Airlines
Fri, Feb 20 - Fri, Mar 6
Multiple Airlines Logo
9:00 am - 7:25 am
DEN
-
SYD
29h 25m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
DEN
27h 30m
2 stops
$925Multiple Airlines
Tue, Mar 10 - Tue, Mar 24
Multiple Airlines Logo
10:29 pm - 7:25 am
DEN
-
SYD
39h 56m
1 stop
Multiple Airlines Logo
2:00 pm - 9:44 am
SYD
-
DEN
36h 44m
2 stops
$930Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
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
$931Multiple Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
10:43 pm - 7:25 am
DEN
-
SYD
38h 42m
1 stop
Multiple Airlines Logo
2:00 pm - 12:30 am
SYD
-
DEN
27h 30m
2 stops
$938Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Multiple Airlines Logo
7:00 am - 7:30 am
DEN
-
SYD
32h 30m
1 stop
Multiple Airlines Logo
1:15 pm - 10:47 am
SYD
-
DEN
37h 32m
2 stops
$954Multiple Airlines
Thu, Apr 16 - Mon, Apr 20

Turkish Airlines flights from Denver to Sydney

Our best Turkish Airlines deals on Denver to Sydney flight tickets
Turkish Airlines
Feb 10
DEN7:20 pmDenver Intl
54h 00m
2 stops
SYD7:20 pmSydney Kingsford Smith
Feb 23
SYD9:15 pmSydney Kingsford Smith
38h 20m
2 stops
DEN5:35 pmDenver Intl
$1,370
Turkish Airlines
Feb 5
DEN7:20 pmDenver Intl
54h 00m
2 stops
SYD7:20 pmSydney Kingsford Smith
Feb 23
SYD9:15 pmSydney Kingsford Smith
38h 20m
2 stops
DEN5:35 pmDenver Intl
$1,415
Turkish Airlines
Feb 5
DEN7:20 pmDenver Intl
54h 00m
2 stops
SYD7:20 pmSydney Kingsford Smith
Feb 23
SYD9:15 pmSydney Kingsford Smith
42h 50m
3 stops
DEN10:05 pmDenver Intl
$1,657

Air New Zealand flights from Denver to Sydney

Our best Air New Zealand deals on Denver to Sydney flight tickets
Air New Zealand
Feb 7
DEN11:22 amDenver Intl
27h 43m
1 stop
SYD9:05 amSydney Kingsford Smith
Feb 14
SYD7:15 pmSydney Kingsford Smith
41h 08m
2 stops
DEN6:23 pmDenver Intl
$1,694
Air New Zealand
Feb 7
DEN8:50 pmDenver Intl
41h 55m
2 stops
SYD8:45 amSydney Kingsford Smith
Feb 14
SYD7:15 pmSydney Kingsford Smith
41h 08m
2 stops
DEN6:23 pmDenver Intl
$1,734
Air New Zealand
Feb 6
DEN1:30 pmDenver Intl
25h 15m
2 stops
SYD8:45 amSydney Kingsford Smith
Feb 8
SYD11:45 amSydney Kingsford Smith
22h 47m
2 stops
DEN4:32 pmDenver Intl
$1,873

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 February 2, 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

Sat 2/28

11:50 am-12:35 pm

2 stops30h 45m

Sydney Kingsford Smith

Sun 3/8

6:00 am-11:30 pm

2 stops35h 30m

$862

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 3/1

6:00 am-12:35 pm

2 stops36h 35m

Sydney Kingsford Smith

Sun 3/8

6:00 am-11:30 pm

2 stops35h 30m

$874

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Sun 3/1

6:00 am-12:35 pm

2 stops36h 35m

Sydney Kingsford Smith

Sun 3/8

2:00 pm-11:30 pm

2 stops27h 30m

$884

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Wed 3/11

10:29 pm-7:25 am

1 stop39h 56m

Sydney Kingsford Smith

Wed 3/18

2:00 pm-12:30 am

2 stops27h 30m

$915

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Fri 2/20

6:00 am-7:25 am

1 stop31h 25m

Sydney Kingsford Smith

Fri 3/6

2:00 pm-9:44 am

2 stops37h 44m

$923

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 3/10

9:00 am-7:25 am

1 stop29h 25m

Sydney Kingsford Smith

Tue 3/24

2:00 pm-12:30 am

2 stops27h 30m

$925

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 3/16

10:29 pm-7:25 am

1 stop39h 56m

Sydney Kingsford Smith

Mon 3/23

2:00 pm-9:44 am

2 stops36h 44m

$930

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Tue 3/17

10:29 pm-7:25 am

1 stop39h 56m

Sydney Kingsford Smith

Tue 3/24

2:00 pm-12:30 am

2 stops27h 30m

$931

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Mon 3/2

10:43 pm-7:25 am

1 stop38h 42m

Sydney Kingsford Smith

Mon 3/9

2:00 pm-12:30 am

2 stops27h 30m

$938

DenverSydney

DEN - SYD

DENSYD

Denver Intl

Thu 4/16

7:00 am-7:30 am

1 stop32h 30m

Sydney Kingsford Smith

Mon 4/20

1:15 pm-10:47 am

2 stops37h 32m

$954

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $905.

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 $1,139 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 February 2026, prices for Denver to Sydney flights are approximately 3% 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 30m

Direct flights

None
The fastest flight from Denver to Sydney takes 19h 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 19h 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 $255Free CancellationRating
7.9
8,129 reviews
Search Delta flights
Fiji AirwaysPriceFrom $684Free CancellationRating
8.0
223 reviews
Search Fiji Airways flights
Alaska AirlinesPriceFrom $745Free CancellationRating
8.0
11,829 reviews
Search Alaska Airlines flights
Qantas AirwaysPriceFrom $800Free CancellationRating
7.5
984 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $825Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
Air New ZealandPriceFrom $834Free CancellationRating
8.0
578 reviews
Search Air New Zealand flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,229 reviews
Search United Airlines flights
Air CanadaPriceFrom $980Free CancellationRating
7.1
10,673 reviews
Search Air Canada flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Parramatta
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.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 3/4
Wed 3/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia