BOS - SYD

$546 Find Cheap Flights from Boston to Sydney - Compare and Save

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Everything you should know

Cheapest round-trip
$1,297
Typical prices: $1,271-$1,689
Delta
Mon 1/22Sat 3/3
BOS - SYD • 2 stops
Cheapest one-way
$546
Typical prices: $634-$1,028
Multiple Airlines
Thu 3/29
BOS - SYD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Boston and Sydney. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
14 weeks
in advance
Our data shows that travelers who book at least 14 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 13% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $1,388 (round-trip)
San Francisco (SFO)
Shortest trip • 22h 48m (one-way)
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Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Sydney (BOS-SYD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sydney

Fri, Jan 22 - Wed, Mar 3
Delta Logo
6:00 pm - 6:50 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
68h 50m2 stops Salt Lake City Los Angeles
Delta Logo
10:40 am - 4:30 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
21h 50m1 stop Los Angeles
$1,297Delta
Sat, Feb 6 - Sat, Feb 27
Qantas Airways Logo
6:52 pm - 6:25 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
43h 33m1 stop Los Angeles
Qantas Airways Logo
7:05 am - 6:51 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
27h 46m2 stops Auckland Intl Los Angeles
$1,300Qantas Airways
Sun, Apr 11 - Sun, Apr 18
Qatar Airways Logo
10:00 pm - 5:05 pmBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
29h 05m1 stop Doha Hamad Intl
Qatar Airways Logo
3:50 pm - 3:15 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
37h 25m1 stop Doha Hamad Intl
$1,303Qatar Airways
Wed, Mar 24 - Sat, Apr 10
Qatar Airways Logo
9:40 pm - 6:20 pmBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
29h 40m1 stop Doha Hamad Intl
Qatar Airways Logo
8:55 pm - 3:15 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
32h 20m1 stop Doha Hamad Intl
$1,303Qatar Airways
Fri, Apr 9 - Mon, Apr 26
Multiple Airlines Logo
10:00 pm - 5:05 pmBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
29h 05m1 stop Doha Hamad Intl
Multiple Airlines Logo
8:55 pm - 3:15 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
32h 20m1 stop Doha Hamad Intl
$1,304Multiple Airlines
Tue, Feb 2 - Thu, Feb 18
Multiple Airlines Logo
4:56 pm - 7:45 pmBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
34h 49m2 stops Portland Honolulu
Multiple Airlines Logo
9:40 pm - 4:46 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
35h 06m2 stops Honolulu Seattle/Tacoma Intl
$1,304Multiple Airlines
Fri, Jan 22 - Wed, Mar 3
Qantas Airways Logo
2:06 pm - 6:55 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
24h 49m1 stop Dallas/Fort Worth
Qantas Airways Logo
11:20 am - 4:17 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
20h 57m1 stop Los Angeles
$1,313Qantas Airways
Wed, Feb 24 - Wed, Mar 3
Air New Zealand Logo
7:30 am - 8:35 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
33h 05m2 stops San Francisco Auckland Intl
Air New Zealand Logo
11:50 am - 11:26 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
27h 36m2 stops Auckland Intl San Francisco
$1,317Air New Zealand
Mon, Jan 25 - Tue, Mar 2
Air New Zealand Logo
8:30 am - 8:35 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
32h 05m2 stops Los Angeles Auckland Intl
Air New Zealand Logo
9:55 am - 9:35 pmSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
27h 40m2 stops Auckland Intl Houston George Bush Intcntl
$1,328Air New Zealand
Sun, Mar 21 - Thu, Apr 8
Delta Logo
9:55 am - 6:05 amBOS  Boston Logan Intl-SYD Sydney Kingsford Smith
29h 10m2 stops New York John F Kennedy Intl Los Angeles
Delta Logo
9:15 am - 12:21 amSYD  Sydney Kingsford Smith-BOS Boston Logan Intl
29h 06m1 stop Los Angeles
$1,330Delta
Booking Insights

Price, demand and travel trends for Boston to Sydney flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Boston to Sydney?

Round-trip flights from Boston to Sydney typically range from $1,271 to $1,689. The lowest price found in the past 5 days was $1,297, on Delta.

What's the cheapest day of the week to fly from Boston to Sydney?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Boston to Sydney. It’s 4% cheaper than the average day, while Saturday is the most expensive, with prices 11% higher.

What’s the cheapest month to fly from Boston to Sydney?

•May is the cheapest month to fly from Boston to Sydney at $1,260 round-trip.
•December ($1,823) and January ($1,579) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Sydney the cheapest?

Flights from Boston to Sydney are cheapest 14 weeks before departure. Booking in this window typically costs about 14% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Boston to Sydney flights

Low season

May

Cheapest flight

$546
Beat the crowds with an average 25% drop in travelers.
The most popular month to fly with an average 21% increase in travelers.
One-way flight from Boston to Sydney

When to book flights from Boston to Sydney

Are your dates flexible? Find out the best times to travel from Boston to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Sydney flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Boston to Sydney?

    Four cabin classes are available on flights from Boston to Sydney:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Boston to Sydney?

    A nonstop flight from Boston to Sydney takes 00m, covering 10,091 miles.

  • Do I need a passport to fly from Boston to Sydney?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Boston to Sydney flight?

    Round-trip flights from Boston to Sydney range from $1,271 to $1,689, with an average of $1,449 over the past 12 months. Anything below $1,271 counts as a good deal.

  • How expensive are last-minute Boston to Sydney flights?

    Last-minute fares on this route (booked within two weeks of departure) run 7% above the $1,449 route average. Book 14 weeks before departure for the lowest fares.

  • How are flight prices from Boston to Sydney looking right now?

    One-way fares from Boston to Sydney are currently lower than usual. Average one-way flight prices are about $677, which is 13% below the typical average for this route.

  • What car rental options are available at Sydney Kingsford Smith Airport (SYD)?

    Sydney Kingsford Smith Airport (SYD) hosts 5 major car rental companies, with daily rates averaging $41 for economy cars. Top options include:

    • East Coast Car Rentals
    • Bargain Car Rentals
    • YESDRIVE CAR RENTAL
    • No Birds
    • EverythingFleet

  • Which airports can I use when flying from Boston to Sydney?

    Flights from Boston to Sydney usually depart from Boston Logan Intl (BOS) and arrive at Sydney Kingsford Smith (SYD).

  • Which airports do connecting flights from Boston to Sydney pass through?

    One-stop flights from Boston to Sydney most commonly connect through:

    • Los Angeles (LAX) - 65% of one-stop connections
    • San Francisco (SFO) - 14% of one-stop connections
    • Dallas/Fort Worth (DFW) - 13% of one-stop connections
    • Doha Hamad Intl (DOH) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Sydney?

    Yes. Flexible dates can save you up to 13% on flights from Boston to Sydney. Thursday is the cheapest departure day at $1,402 round-trip on average, while Saturday is the most expensive at $1,609, a difference of $207.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Boston to Sydney?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time at 22h 48m, compared with 22h 59m via Dallas/Fort Worth (DFW) and 23h 05m via Los Angeles (LAX).

  • What is the time difference between Boston and Sydney?

    Sydney is 15 hours ahead of Boston (Eastern Australia Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Sydney?

    Some of the most popular sights in Sydney are Sydney Opera House, Museum of Contemporary Art and Chinatown Night Market. These are among the most viewed places in Sydney on KAYAK.

  • Does Sydney Kingsford Smith Airport have an onsite hotel?

    Yes, Sydney Kingsford Smith Airport has three hotels within its precinct offering exceptionally stylish and premium accommodation. Located at the international terminal, Rydges Hotel offers travelers complimentary shuttle service to and from all terminals. The other two hotels at the airport are the ibis budget Sydney Airport and the Mantra Sydney Airport. Both are located just five minutes away from Terminals 2 and 3.

  • Is Sydney Kingsford Smith Airport linked to the city via a train line?

    Yes, Sydney Kingsford Smith Airport is linked to the city by a line plying the route every ten minutes. The train service, called the Airport Link, is the best way to get to the town from the airport. Airport Link operates two train stations at the airport, one is situated beneath the Domestic Passenger Terminals, while the other is found below the International Passenger Terminal (T1).

  • What are layover options between Boston Logan International Airport and Sydney Kingsford Smith Airport?

    Your layover options will be determined mainly by the airline you are using. If you opt for a relatively quick one-stop flight offered by United Airlines, Virgin Australia, American Airlines, or Qantas Airways, your layover will be in San Francisco, Los Angeles, or Dallas.

  • Does Boston Logan International Airport have a kid's play area?

    Yes, Boston Logan International Airport features a kid's port at Terminal C equipped with vintage-style aircraft replicas, an airfield carpet, and cloud-painted walls. The airport also has another kids' playing area located at Terminal B near Gate B30.

Your guide to booking Boston to Sydney flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $1,402, about $207 less than Saturday fares (13% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 14% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Sydney trip for May. Fares historically average $1,260 round-trip in that month - typically $563 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sydney Kingsford Smith Airport.

    • ibis budget Sydney Airport
    • Travelodge Hotel Sydney Airport
    • Rydges Sydney Airport Hotel
  • If you are looking to travel directly from Boston Logan International Airport to Sydney Kingsford Smith Airport, you will have to opt for a one-stop flight. This is because, currently, no airlines offer direct flights on the route. United Airlines, Virgin Australia, American Airlines, and Qantas Airways are among the major airlines that offer quick one-stop flights between the two airports.
  • Boston Logan International Airport (BOS) has lactation bays for traveling mothers before and after security check-in at Terminal A. The lactation bays feature folding seats, changing tables, and a sink to ensure maximum comfortability. The airport also has Mamava pods at Terminal B near Gate C8 and on Terminal E's departure level near Gate E9.
  • Aside from being the busiest airport in Australia, Sydney Kingsford Smith Airport (SYD) is the only airport serving greater Sydney. It connects the city to 46 domestic destinations such as Brisbane, Canberra, Hobart, and Auckland. It is the primary hub for Qantas Airlines and a secondary hub for Virgin Australia.
  • If you arrive at Sydney Kingsford Smith Airport early and have time to spare, you can visit the observation deck located at Terminal 1. The deck is fitted with telescopes for observing planes land and take off and general happenings at the airport. The airport also has a plane spotter mound next to the control tower called the Shep's Mound. The bank has two raised platforms overlooking the airfield, expansive grassed areas, and dedicated car parking.
  • Suppose you require special luggage services at Sydney Kingsford Smith Airport. In that case, you are lucky as the airport has a luggage storage facility operated by Smarte Carte, located in Terminal 1, and open from 6:00 am to 9:30 pm.

More options for your flight from Boston to Sydney

Complete your trip to Sydney with a hotel stay or car rental

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