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Find cheap one-way flights from Boston to Sydney starting at US$588.

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 Boston 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 Boston to Sydney

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

Hawaiian Airlines
From US$352
Alaska Airlines
From US$423
Delta Air Lines
From US$471
United Airlines
From US$586
Jetblue Airways
From US$593
American Airlines
From US$662
Sun Country Airlines
From US$662
Qatar Airways
From US$769
Japan Airlines
From US$793
Etihad Airways
From US$819
ANA airlines

Find more flights and airlines

Find cheap flights from Boston to Sydney by different airports

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

  • Cheapest
    Hawaiian Airlines
    BOS
    06:00
    42h 40m
    2 transfer
    SYD
    14:40
    General Edward Lawrence Logan International Airport - Kingsford Smith Airport
    Wed, May 15Hawaiian Airlines
    US$352
  • Hawaiian Airlines
    BOS
    06:00
    42h 40m
    2 transfer
    SYD
    14:40
    General Edward Lawrence Logan International Airport - Kingsford Smith Airport
    Wed, May 15Hawaiian Airlines
    US$352
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Boston (BOS) to Sydney (SYD) the cheapest?

    Airlines adjust prices for flights from Boston 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 Boston (BOS) to Sydney (SYD) cost?

    According to Trip.com's data, the lowest price is around $2,001.
  • 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.

Boston to Sydney Flight Information

Cheapest nonstop flight price

$587

Off-season for travel

March

Peak season for travel

June