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Find cheap one-way flights from Denver to Sydney starting at US$581.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Denver to Sydney?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Denver to Sydney

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From US$443
Alaska Airlines
From US$460
United Airlines
From US$562
American Airlines
From US$591
Delta Air Lines
From US$713
Southwest Airlines
From US$741
Air New Zealand
From US$809
Air Canada
From US$985
Cathay Pacific
From US$1,024
China Airlines
From US$1,092
ANA airlines

Find more flights and airlines

Find cheap flights from Denver to Sydney by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Denver to Sydney.

  • Cheapest
    Frontier Airlines
    DEN
    21:38
    49h 2m
    2 transfer
    SYD
    14:40
    Denver International Airport - Kingsford Smith Airport
    Sat, Apr 6Frontier Airlines
    US$443
  • Frontier Airlines
    DEN
    21:38
    49h 2m
    2 transfer
    SYD
    14:40
    Denver International Airport - Kingsford Smith Airport
    Sat, Apr 6Frontier Airlines
    US$443
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Denver (DEN) to Sydney (SYD) the cheapest?

    Airlines adjust prices for flights from Denver to Sydney based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Denver (DEN) to Sydney (SYD) cost?

    According to Trip.com's data, the lowest price is around $1,844.
  • What is the transportation method from the main airport to downtown in Sydney?

    • The distance from Kingsford Smith Airport to downtown is about 8km. It takes about 20 minutes by taxi.

Denver to Sydney Flight Information

Cheapest nonstop flight price

$580

Off-season for travel

February

Peak season for travel

October