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Cheap flights from Sydney to Boston from $673

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Boston

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:20 - 09:50SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
38h 30m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
05:30 - 08:35BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
36h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,338Air Canada
Wed, 21 Oct - Wed, 28 Oct
Air Canada Logo
10:20 - 11:50SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
40h 30m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
15:30 - 08:35BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
26h 05m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
$1,349Air Canada
Mon, 19 Oct - Mon, 26 Oct
Multiple Airlines Logo
11:20 - 19:14SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
23h 54m2 stops Vancouver Intl Chicago O'Hare Intl
Multiple Airlines Logo
10:25 - 09:35BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
31h 10m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl
$1,454Multiple Airlines
Mon, 2 Nov - Tue, 17 Nov
Multiple Airlines Logo
10:20 - 19:22SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
24h 02m2 stops Vancouver Intl Chicago O'Hare Intl
Multiple Airlines Logo
05:30 - 08:35BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
36h 05m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Vancouver Intl
$1,456Multiple Airlines
Wed, 21 Oct - Wed, 28 Oct
Qantas Airways Logo
10:10 - 16:39SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
21h 29m1 stop Los Angeles Los Angeles
Qantas Airways Logo
17:45 - 08:05BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
23h 20m1 stop Los Angeles Los Angeles
$1,517Qantas Airways
Tue, 13 Oct - Tue, 20 Oct
Qantas Airways Logo
10:10 - 16:39SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
21h 29m1 stop Los Angeles Los Angeles
Qantas Airways Logo
14:25 - 09:00BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
27h 35m1 stop Los Angeles Los Angeles
$1,518Qantas Airways
Mon, 19 Oct - Mon, 26 Oct
American Airlines Logo
10:10 - 19:13SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
24h 03m2 stops Los Angeles Los Angeles Philadelphia
American Airlines Logo
14:25 - 09:00BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
27h 35m1 stop Los Angeles Los Angeles
$1,549American Airlines
Mon, 12 Oct - Mon, 26 Oct
American Airlines Logo
10:10 - 23:43SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
28h 33m1 stop Los Angeles Los Angeles
American Airlines Logo
14:25 - 09:00BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
27h 35m1 stop Los Angeles Los Angeles
$1,549American Airlines
Mon, 12 Oct - Mon, 26 Oct
Delta Logo
10:40 - 21:26SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
26h 46m1 stop Los Angeles Los Angeles
Delta Logo
15:20 - 08:30BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
25h 10m2 stops Atlanta Hartsfield-Jackson Los Angeles Los Angeles
$1,662Delta
Tue, 8 Dec - Tue, 29 Dec
Delta Logo
10:40 - 05:32SYD  Sydney Kingsford Smith-BOS Boston Logan Intl
34h 52m1 stop Los Angeles Los Angeles
Delta Logo
16:10 - 08:30BOS  Boston Logan Intl-SYD Sydney Kingsford Smith
24h 20m1 stop Los Angeles Los Angeles
$1,662Delta
Tue, 8 Dec - Tue, 29 Dec

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Air Canada flights from Sydney to Boston

Our best Air Canada deals on Sydney to Boston flight tickets
Air Canada
21 Oct
SYD10:20Sydney Kingsford Smith
38h 30m
2 stops
BOS09:50Boston Logan Intl
28 Oct
BOS05:30Boston Logan Intl
36h 05m
2 stops
SYD08:35Sydney Kingsford Smith
$1,338
Air Canada
13 Oct
SYD10:20Sydney Kingsford Smith
27h 20m
2 stops
BOS22:40Boston Logan Intl
20 Oct
BOS12:45Boston Logan Intl
28h 35m
2 stops
SYD08:20Sydney Kingsford Smith
$1,349
Air Canada
12 Oct
SYD10:20Sydney Kingsford Smith
26h 06m
2 stops
BOS21:26Boston Logan Intl
26 Oct
BOS10:40Boston Logan Intl
30h 55m
2 stops
SYD08:35Sydney Kingsford Smith
$1,354

British Airways flights from Sydney to Boston

Our best British Airways deals on Sydney to Boston flight tickets
British Airways
12 Oct
SYD10:10Sydney Kingsford Smith
24h 49m
2 stops
BOS19:59Boston Logan Intl
27 Oct
BOS14:25Boston Logan Intl
27h 35m
2 stops
SYD09:00Sydney Kingsford Smith
$1,510
British Airways
21 Oct
SYD10:10Sydney Kingsford Smith
24h 03m
2 stops
BOS19:13Boston Logan Intl
28 Oct
BOS14:25Boston Logan Intl
27h 35m
1 stop
SYD09:00Sydney Kingsford Smith
$1,532

momondo Fare Finder

 
Use the filters below to find and compare flights from Sydney to Boston that are best for you.

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Price

Cheapest return flight

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Wed 21/10

10:20-09:50

2 stops38h 30m

Boston Logan Intl

Wed 28/10

05:30-08:35

2 stops36h 05m

$1,338

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Mon 19/10

10:20-11:50

2 stops40h 30m

Boston Logan Intl

Mon 26/10

15:30-08:35

2 stops26h 05m

$1,349

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Mon 2/11

11:20-19:14

2 stops23h 54m

Boston Logan Intl

Tue 17/11

10:25-09:35

3 stops31h 10m

$1,454

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Wed 21/10

10:20-19:22

2 stops24h 02m

Boston Logan Intl

Wed 28/10

05:30-08:35

3 stops36h 05m

$1,456
Fastest return journey

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Tue 13/10

10:10-16:39

1 stop21h 29m

Boston Logan Intl

Tue 20/10

17:45-08:05

1 stop23h 20m

$1,517

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Mon 19/10

10:10-16:39

1 stop21h 29m

Boston Logan Intl

Mon 26/10

14:25-09:00

1 stop27h 35m

$1,518

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Mon 12/10

10:10-19:13

2 stops24h 03m

Boston Logan Intl

Mon 26/10

14:25-09:00

1 stop27h 35m

$1,549

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Mon 12/10

10:10-23:43

1 stop28h 33m

Boston Logan Intl

Mon 26/10

14:25-09:00

1 stop27h 35m

$1,549

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Tue 8/12

10:40-21:26

1 stop26h 46m

Boston Logan Intl

Tue 29/12

15:20-08:30

2 stops25h 10m

$1,662

SydneyBoston

SYD Sydney Kingsford Smith - BOS Boston Logan Intl

SYDBOS

Sydney Kingsford Smith

Tue 8/12

10:40-05:32

1 stop34h 52m

Boston Logan Intl

Tue 29/12

16:10-08:30

1 stop24h 20m

$1,662

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Sydney to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sydney and Boston?

Prices are currently low for flights on this route.

Typical prices usually range from $1,685 to $2,155.
The lowest price recently found on this route was $1,338.

What is the cheapest month to fly to Boston?

In general, October is the cheapest month to fly from Sydney to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,177. The month of January is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,464.

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

You are more likely to see cheaper flights to Boston from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $1,700 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sydney for as low as $1,486 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 15% on your flight if you consider stops on a Sydney to Boston flight.

How have Sydney to Boston flight prices changed over time?

As of September 2026, prices for Sydney to Boston flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sydney to Boston (SYD to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Boston

Best price found

$673

Fastest flight time

21h 29m

Direct flights

None
The best one-way flight to Boston from Sydney in the past 72 hours is $673. The best return flight deal from Sydney to Boston found on momondo in the last 72 hours is $1,338.
The fastest flight from Sydney to Boston takes 21h 29m
There are no direct flights from Sydney to Boston. There are no popular flight routes from Sydney to Boston.
Search flight deals

Frequently asked questions about flying from Sydney to Boston

  • How far is Sydney Kingsford Smith to Boston Logan Intl by plane?

    Sydney Kingsford Smith and Boston Logan Intl are 16229.2 km apart from one another. In terms of flight time, this usually takes a little over 21h 29m.

  • When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?

    Prices for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport were last updated today.

  • How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Sydney to Boston?

Best airlines flying from Sydney to Boston

Compare and see reviews for airlines that fly from Sydney to Boston with momondo
Airline
Rating
Free cancellation
Price
Virgin AustraliaPriceFrom $688Free cancellationRating
7.6
474 reviews
Search Virgin Australia flights
United AirlinesPriceFrom $1,124Free cancellationRating
7.4
10,173 reviews
Search United Airlines flights
Air CanadaPriceFrom $1,173Free cancellationRating
7.1
11,595 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $1,240Free cancellationRating
7.5
1,090 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,256Free cancellationRating
7.1
12,042 reviews
Search American Airlines flights
DeltaPriceFrom $1,296Free cancellationRating
7.8
8,554 reviews
Search Delta flights

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Brookline
Old Orchard Beach
Salem
Revere
Sturbridge
Seabrook
Hull
Randolph

Why use momondo?

Why should I use momondo to find a flight deal from Sydney to Boston?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boston from Sydney.

Can I find flights from Sydney to Boston with flexible booking policies on momondo?

Flights from Sydney to Boston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Sydney to Boston?

Once all potential Sydney to Boston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Sydney to Boston right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Boston, momondo offers a useful price alert feature which will track prices for flights to Boston from Sydney and alert you when they change.

An easier way to manage your Boston trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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