BOS - SYD

$610 Find Cheap Flights from Boston to Sydney - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Sydney departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,184
Typical prices: $1,186-$1,453
Air Canada
Tue 9/8Wed 9/23
BOS - SYD • 3 stops
Cheapest one-way
$610
Typical prices: $732-$943
Qantas Airways
Tue 8/4
BOS - SYD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boston and Sydney. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $751 (round-trip)
Shortest trip • 19h 54m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 19% compared to booking last minute.
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When to travel
Cheapest • 16% price drop
Most popular
Good to know
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Booking Insights
Flight Deals

Cheap Flights from Boston to Sydney (BOS-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Sydney

Tue, Sep 8 - Wed, Sep 23
Air Canada Logo
10:40 am - 7:20 am
BOS
-
SYD
30h 40m
3 stops
Air Canada Logo
9:20 am - 9:50 am
SYD
-
BOS
38h 30m
3 stops
$1,184Air Canada
Mon, Aug 10 - Mon, Aug 24
American Airlines Logo
10:30 am - 7:30 am
BOS
-
SYD
31h 00m
1 stop
American Airlines Logo
12:00 pm - 10:06 pm
SYD
-
BOS
24h 06m
1 stop
$1,184American Airlines
Wed, Aug 19 - Wed, Sep 9
Qantas Airways Logo
4:59 pm - 7:05 am
BOS
-
SYD
24h 06m
1 stop
Qantas Airways Logo
12:00 pm - 9:27 pm
SYD
-
BOS
23h 27m
1 stop
$1,184Qantas Airways
Mon, Aug 17 - Mon, Aug 24
American Airlines Logo
9:19 am - 6:55 am
BOS
-
SYD
31h 36m
1 stop
American Airlines Logo
9:10 am - 11:44 pm
SYD
-
BOS
28h 34m
1 stop
$1,184American Airlines
Wed, Sep 9 - Wed, Sep 16
Qantas Airways Logo
4:35 pm - 7:05 am
BOS
-
SYD
24h 30m
1 stop
Qantas Airways Logo
9:10 am - 11:28 pm
SYD
-
BOS
28h 18m
1 stop
$1,185Qantas Airways
Tue, Oct 27 - Tue, Nov 10
Air Canada Logo
10:35 am - 8:35 am
BOS
-
SYD
31h 00m
3 stops
Air Canada Logo
11:20 am - 9:28 pm
SYD
-
BOS
26h 08m
2 stops
$1,186Air Canada
Wed, Aug 12 - Tue, Aug 25
United Airlines Logo
6:35 pm - 7:00 am
BOS
-
SYD
22h 25m
1 stop
United Airlines Logo
9:30 am - 9:59 pm
SYD
-
BOS
26h 29m
2 stops
$1,187United Airlines
Mon, Aug 10 - Wed, Aug 26
United Airlines Logo
6:27 pm - 7:00 am
BOS
-
SYD
22h 33m
1 stop
United Airlines Logo
10:20 am - 5:07 pm
SYD
-
BOS
20h 47m
1 stop
$1,187United Airlines
Wed, Sep 16 - Wed, Oct 7
Multiple Airlines Logo
12:41 pm - 7:20 am
BOS
-
SYD
28h 39m
2 stops
Multiple Airlines Logo
10:20 am - 9:50 am
SYD
-
BOS
38h 30m
3 stops
$1,188Multiple Airlines
Sun, Oct 18 - Wed, Oct 28
Multiple Airlines Logo
10:40 am - 8:20 am
BOS
-
SYD
30h 40m
3 stops
Multiple Airlines Logo
10:20 am - 7:15 pm
SYD
-
BOS
23h 55m
2 stops
$1,194Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Sydney flights

Get data-powered insights and trends into flights from Boston to Sydney to help you find the cheapest flights, the best time to fly and much more.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Sydney departing in August.

Flight prices are below average for this route right now.

Flights to Sydney from Boston usually cost between $1,265 and $1,632 in August.
The lowest price found in the past 5 days was $1,184 on American Airlines (Aug 10-Aug 24).

What is the cheapest month to fly from Boston to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Sydney is September, where tickets cost $1,228 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $2,079 and $1,561 respectively.

How far in advance should I book a flight from Boston to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Sydney, you should book around 3 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low season

May

Cheapest flight

$610
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 41% increase in price.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Sydney

  • 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.

  • What is the cheapest flight from Boston to Sydney?

    In the last 5 days, the lowest price for a flight from Boston to Sydney was $610 for a one-way ticket and $1,184 for a round-trip.

  • Do I need a passport to fly between Boston and Sydney?

    Yes

  • Which airports will I be using when flying from Boston to Sydney?

    When flying out of Boston you will be using Boston Logan Intl. You will be landing at Sydney, also known as Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Boston to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Sydney?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Boston and Sydney, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Sydney from Boston?

    Los Angeles is the most popular layover city among KAYAK users traveling from Boston to Sydney.

  • Which is the best airline for flights from Boston to Sydney, Air New Zealand or Fiji Airways?

    The two airlines most popular with KAYAK users for flights from Boston to Sydney are Air New Zealand and Fiji Airways. With an average price for the route of $1,460 and an overall rating of 8.0, Air New Zealand is the most popular choice. Fiji Airways is also a great choice for the route, with an average price of $772 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Boston to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sydney with an airline and back to Boston with another airline. Booking your flights between Boston and SYD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Sydney

  • 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.

Everything you need to know for your flight from Boston to Sydney

Information on your arrival and departure airports