Find flights
When to book
FAQs

Cheap flights from Denver to Sydney from $754

DEN — SYD
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Denver to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Denver to Sydney

Fri 13/1115:37 -
2 stops22h 58m
Wed 18/1109:55 -
2 stops24h 17m
Deal found 8/11$1,815
Tue 1/1213:54 -
1 stop22h 31m
Tue 8/1211:15 -
1 stop22h 38m
Deal found 7/11$1,837
Sat 28/1107:55 -
2 stops30h 40m
Fri 18/1209:55 -
2 stops24h 35m
Deal found 4/11$1,949
Sun 8/1114:14 -
2 stops24h 46m
Mon 23/1111:15 -
2 stops40h 28m
Deal found 4/11$2,045
Wed 2/1213:54 -
1 stop22h 31m
Wed 9/1211:00 -
3 stops50h 45m
Deal found 4/11$2,098
Mon 16/1105:00 -
2 stops33h 35m
Mon 30/1111:20 -
1 stop22h 52m
Deal found 5/11$2,125

Find flight deals from Denver to Sydney

Round-trip from

$1,357

One-way from

$754

Popular in

December

Cheapest in

May

Average price

$2,000
20/2-24/2
  • 20/2-24/2
  • 3 total stops
  • 46h 22m total
  • Denver to Sydney
Search Deals
1/3-31/12
  • 1/3-31/12
  • 2 total stops
  • 31h 10m total
  • Denver to Sydney
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($732 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($150 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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 return flight

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 1/3

15:45-20:15

3 stops34h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$857

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 7/4

07:00-06:30

2 stops31h 30m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$999

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 19/3

07:00-06:25

2 stops30h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,010

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Wed 30/12

19:30-19:25

2 stops53h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,230
Fastest return journey

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sat 26/12

07:07-06:25

2 stops29h 18m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,374

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Mon 1/3

21:11-09:05

1 stop41h 54m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,652

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 1/1

06:05-08:30

2 stops32h 25m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,737

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Fri 15/1

07:20-08:30

1 stop31h 10m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,782

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 10/1

19:54-07:15

2 stops41h 21m

Sydney Kingsford Smith

Wed 31/12

00:00-07:00

Nonstop0h 00m

$1,833

DenverSydney

DEN Denver Intl - SYD Sydney Kingsford Smith

DENSYD

Denver Intl

Sun 4/4

19:15-06:50

1 stop19h 35m

Sydney Kingsford Smith

Mon 19/4

09:15-18:10

1 stop24h 55m

$2,328

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Denver to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Denver with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Denver to Sydney

How far ahead should I book a flight from Denver to Sydney?

The best time to book flights from Denver to Sydney is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Denver to Sydney?

Currently, May is the cheapest month in which you can book a flight from Denver to Sydney (average of $1,718). Flying from Denver to Sydney in December is currently the most expensive (average of $3,170). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Denver to Sydney?

Airfare is below average for this route at the moment.

Denver to Sydney flights typically cost between $1,872 and $2,562 in February.
The cheapest return price found within the last 5 days was $1,357 on Multiple Airlines (20 Feb–24 Feb).

Related info for your journey

  • How long is the flight from Denver to Sydney?

    Delta can get you from Denver to Sydney in just under 25h 51m. Your travel time can differ by up to . There are 13435 km between Denver and Sydney.

  • Can I find deals for flights from Denver to Sydney that include hotel bookings?

    Yes. In addition to deals on Denver to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Denver to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Sydney.

  • Can I find deals for business class flights from Denver to Sydney?

    Yes. Cheapflights offers flight deals from Denver to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Denver to Sydney (average of $1,718). Flying from Denver to Sydney in December is currently the most expensive (average of $3,170). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Denver to Sydney?

Deals for Denver to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Denver to Sydney?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Denver to Sydney.

Can Cheapflights find flights from Denver to Sydney with no change fees?

Need flexible booking options for your flight to Sydney from Denver? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Denver to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Denver today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.