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Cheap flights from Sydney to Boston from $825

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Boston departing on 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
06:05 - 15:29
SYD
-
BOS
25h 24m2 stops
Qantas Airways Logo
17:20 - 09:20
BOS
-
SYD
48h 00m2 stops
$1,625Qantas Airways
Tue, 20 Jan - Tue, 27 Jan
Air Canada Logo
09:20 - 10:03
SYD
-
BOS
38h 43m2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m2 stops
$1,663Air Canada
Thu, 21 May - Sun, 31 May
Air Canada Logo
09:20 - 10:03
SYD
-
BOS
38h 43m2 stops
Air Canada Logo
10:50 - 07:20
BOS
-
SYD
30h 30m1 stop
$1,667Air Canada
Thu, 21 May - Sun, 31 May
Air Canada Logo
09:20 - 09:50
SYD
-
BOS
38h 30m2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m3 stops
$1,733Air Canada
Thu, 21 May - Sun, 31 May
Qantas Airways Logo
10:05 - 17:56
SYD
-
BOS
23h 51m2 stops
Qantas Airways Logo
12:11 - 08:00
BOS
-
SYD
27h 49m2 stops
$1,753Qantas Airways
Tue, 20 Jan - Tue, 27 Jan
Air Canada Logo
10:20 - 09:52
SYD
-
BOS
38h 32m2 stops
Air Canada Logo
18:40 - 07:20
BOS
-
SYD
70h 40m3 stops
$1,754Air Canada
Sat, 4 Apr - Sun, 19 Apr
Air Canada Logo
16:00 - 14:52
SYD
-
BOS
38h 52m2 stops
Air Canada Logo
18:40 - 09:35
BOS
-
SYD
46h 55m3 stops
$1,757Air Canada
Mon, 19 Jan - Mon, 26 Jan
Qantas Airways Logo
10:05 - 17:56
SYD
-
BOS
23h 51m2 stops
Qantas Airways Logo
12:11 - 08:00
BOS
-
SYD
27h 49m2 stops
$1,759Qantas Airways
Tue, 20 Jan - Tue, 27 Jan
Air New Zealand Logo
09:55 - 00:52
SYD
-
BOS
30h 57m2 stops
Air New Zealand Logo
07:05 - 10:30
BOS
-
SYD
35h 25m2 stops
$1,768Air New Zealand
Mon, 19 Jan - Mon, 26 Jan
Air Canada Logo
10:20 - 09:52
SYD
-
BOS
38h 32m2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m2 stops
$1,792Air Canada
Fri, 3 Apr - Sat, 18 Apr

Air Canada flights from Sydney to Boston

Our best Air Canada deals on Sydney to Boston flight tickets
Air Canada
21 May
SYD09:20Sydney Kingsford Smith
38h 43m
2 stops
BOS10:03Boston Logan Intl
31 May
BOS10:35Boston Logan Intl
30h 45m
2 stops
SYD07:20Sydney Kingsford Smith
$1,663
Find similar
Air Canada
21 May
SYD09:20Sydney Kingsford Smith
38h 43m
2 stops
BOS10:03Boston Logan Intl
31 May
BOS10:50Boston Logan Intl
30h 30m
1 stop
SYD07:20Sydney Kingsford Smith
$1,667
Find similar
Air Canada
21 May
SYD09:20Sydney Kingsford Smith
38h 30m
2 stops
BOS09:50Boston Logan Intl
31 May
BOS10:35Boston Logan Intl
30h 45m
3 stops
SYD07:20Sydney Kingsford Smith
$1,733
Find similar

United Airlines flights from Sydney to Boston

Our best United Airlines deals on Sydney to Boston flight tickets
United Airlines
4 Apr
SYD10:30Sydney Kingsford Smith
34h 47m
2 stops
BOS06:17Boston Logan Intl
19 Apr
BOS18:20Boston Logan Intl
22h 40m
1 stop
SYD07:00Sydney Kingsford Smith
$1,851
Find similar
United Airlines
3 Apr
SYD10:30Sydney Kingsford Smith
34h 47m
2 stops
BOS06:17Boston Logan Intl
18 Apr
BOS20:15Boston Logan Intl
44h 40m
1 stop
SYD06:55Sydney Kingsford Smith
$2,004
Find similar
United Airlines
17 Dec
SYD11:50Sydney Kingsford Smith
21h 53m
1 stop
BOS17:43Boston Logan Intl
8 Jan
BOS13:50Boston Logan Intl
24h 30m
1 stop
SYD06:20Sydney Kingsford Smith
$3,366
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 7 December 2025.
Use the filters below to find and compare flights from Sydney to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 20/1

06:05-15:29

2 stops25h 24m

Boston Logan Intl

Tue 27/1

17:20-09:20

2 stops48h 00m

$1,625

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 21/5

09:20-10:03

2 stops38h 43m

Boston Logan Intl

Sun 31/5

10:35-07:20

2 stops30h 45m

$1,663

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 21/5

09:20-10:03

2 stops38h 43m

Boston Logan Intl

Sun 31/5

10:50-07:20

1 stop30h 30m

$1,667

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 21/5

09:20-09:50

2 stops38h 30m

Boston Logan Intl

Sun 31/5

10:35-07:20

3 stops30h 45m

$1,733

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 20/1

10:05-17:56

2 stops23h 51m

Boston Logan Intl

Tue 27/1

12:11-08:00

2 stops27h 49m

$1,753

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sat 4/4

10:20-09:52

2 stops38h 32m

Boston Logan Intl

Sun 19/4

18:40-07:20

3 stops70h 40m

$1,754

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 19/1

16:00-14:52

2 stops38h 52m

Boston Logan Intl

Mon 26/1

18:40-09:35

3 stops46h 55m

$1,757

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 20/1

10:05-17:56

2 stops23h 51m

Boston Logan Intl

Tue 27/1

12:11-08:00

2 stops27h 49m

$1,759

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 19/1

09:55-00:52

2 stops30h 57m

Boston Logan Intl

Mon 26/1

07:05-10:30

2 stops35h 25m

$1,768

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 3/4

10:20-09:52

2 stops38h 32m

Boston Logan Intl

Sat 18/4

10:35-07:20

2 stops30h 45m

$1,792

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $1,551. The month of November is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,721.

What is the cheapest day to depart on your flight to Boston?

On average, the least expensive day to fly to Boston from Sydney is on a Sunday. momondo users have found tickets for Sunday departures for as low as $2,000. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $2,545. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Sydney to Boston in the afternoon for as low as $1,961. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $2,155 per ticket.

How far in advance should I book a flight 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 $1,940 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 $1,666 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 24% 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 December 2025, prices for Sydney to Boston flights are approximately 44% 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

Fastest flight time

22h 35m

Direct flights

None
The fastest flight from Sydney to Boston takes 22h 35m
There are no direct flights from Sydney to Boston. There are no popular flight routes from Sydney to Boston.
Search flight deals

  • 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 01m.

  • 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
Hawaiian AirlinesPriceFrom $962Free cancellationRating
7.8
2,817 reviews
Search Hawaiian Airlines flights
Virgin AustraliaPriceFrom $1,033Free cancellationRating
7.6
426 reviews
Search Virgin Australia flights
Air CanadaPriceFrom $1,203Free cancellationRating
7.1
10,512 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,244Free cancellationRating
7.4
9,072 reviews
Search United Airlines flights
DeltaPriceFrom $1,245Free cancellationRating
7.9
8,013 reviews
Search Delta flights
American AirlinesPriceFrom $1,329Free cancellationRating
7.2
11,046 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,579Free cancellationRating
8.0
551 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,632Free cancellationRating
7.5
948 reviews
Search Qantas Airways flights
Japan AirlinesPriceFrom $1,772Free cancellationRating
8.3
1,640 reviews
Search Japan Airlines flights
Cathay PacificPriceFrom $1,864Free cancellationRating
7.6
1,085 reviews
Search Cathay Pacific flights

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Westford
Old Orchard Beach
Revere
Salem
Chelsea
Seekonk
Sturbridge

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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