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Cheap flights from Sydney to Boston from $726

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 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
09:40 - 23:59
SYD
-
BOS
29h 19m
2 stops
Delta Logo
10:30 - 06:35
BOS
-
SYD
30h 05m
2 stops
$1,570Delta
Fri, 27 Mar - Wed, 17 Jun
Qantas Airways Logo
09:10 - 16:53
SYD
-
BOS
21h 43m
1 stop
Qantas Airways Logo
17:00 - 07:05
BOS
-
SYD
24h 05m
1 stop
$1,604Qantas Airways
Thu, 30 Apr - Tue, 12 May
Delta Logo
09:15 - 22:47
SYD
-
BOS
27h 32m
2 stops
Delta Logo
10:55 - 06:35
BOS
-
SYD
29h 40m
1 stop
$1,610Delta
Fri, 22 May - Sat, 6 Jun
Qantas Airways Logo
09:10 - 16:53
SYD
-
BOS
21h 43m
1 stop
Qantas Airways Logo
17:00 - 07:05
BOS
-
SYD
24h 05m
1 stop
$1,618Qantas Airways
Thu, 30 Apr - Tue, 12 May
Qantas Airways Logo
07:20 - 17:20
SYD
-
BOS
26h 00m
2 stops
Qantas Airways Logo
16:04 - 13:00
BOS
-
SYD
28h 56m
2 stops
$1,621Qantas Airways
Fri, 6 Feb - Fri, 20 Feb
Multiple Airlines Logo
09:20 - 09:45
SYD
-
BOS
38h 25m
2 stops
Multiple Airlines Logo
13:30 - 07:20
BOS
-
SYD
27h 50m
2 stops
$1,645Multiple Airlines
Thu, 21 May - Fri, 5 Jun
Qantas Airways Logo
11:20 - 18:31
SYD
-
BOS
23h 11m
1 stop
Qantas Airways Logo
17:20 - 09:00
BOS
-
SYD
24h 40m
1 stop
$1,648Qantas Airways
Sun, 8 Mar - Sun, 15 Mar
Multiple Airlines Logo
09:20 - 22:38
SYD
-
BOS
27h 18m
2 stops
Multiple Airlines Logo
15:08 - 07:20
BOS
-
SYD
26h 12m
2 stops
$1,661Multiple Airlines
Thu, 30 Apr - Tue, 12 May
Multiple Airlines Logo
09:20 - 22:38
SYD
-
BOS
27h 18m
2 stops
Multiple Airlines Logo
15:08 - 07:20
BOS
-
SYD
26h 12m
2 stops
$1,676Multiple Airlines
Thu, 30 Apr - Tue, 12 May
Air Canada Logo
09:20 - 22:38
SYD
-
BOS
27h 18m
2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m
3 stops
$1,679Air Canada
Thu, 30 Apr - Tue, 12 May

Delta flights from Sydney to Boston

Our best Delta deals on Sydney to Boston flight tickets
Delta
27 Mar
SYD09:40Sydney Kingsford Smith
29h 19m
2 stops
BOS23:59Boston Logan Intl
17 June
BOS10:30Boston Logan Intl
30h 05m
2 stops
SYD06:35Sydney Kingsford Smith
$1,570
Delta
22 May
SYD09:15Sydney Kingsford Smith
28h 41m
2 stops
BOS23:56Boston Logan Intl
6 June
BOS15:05Boston Logan Intl
25h 30m
2 stops
SYD06:35Sydney Kingsford Smith
$1,610
Delta
28 Mar
SYD09:40Sydney Kingsford Smith
30h 29m
2 stops
BOS01:09Boston Logan Intl
18 June
BOS09:05Boston Logan Intl
31h 30m
2 stops
SYD06:35Sydney Kingsford Smith
$1,721

United Airlines flights from Sydney to Boston

Our best United Airlines deals on Sydney to Boston flight tickets
United Airlines
18 Mar
SYD10:25Sydney Kingsford Smith
24h 21m
2 stops
BOS19:46Boston Logan Intl
22 Mar
BOS16:30Boston Logan Intl
25h 45m
2 stops
SYD09:15Sydney Kingsford Smith
$1,759
United Airlines
28 June
SYD09:30Sydney Kingsford Smith
21h 08m
1 stop
BOS16:38Boston Logan Intl
4 Aug
BOS18:00Boston Logan Intl
22h 55m
1 stop
SYD06:55Sydney Kingsford Smith
$1,793
United Airlines
28 June
SYD09:30Sydney Kingsford Smith
21h 08m
1 stop
BOS16:38Boston Logan Intl
5 Aug
BOS11:10Boston Logan Intl
29h 45m
1 stop
SYD06:55Sydney Kingsford Smith
$1,809

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 23 January 2026.
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

Fri 27/3

09:40-23:59

2 stops29h 19m

Boston Logan Intl

Wed 17/6

10:30-06:35

2 stops30h 05m

$1,570

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/4

09:10-16:53

1 stop21h 43m

Boston Logan Intl

Tue 12/5

17:00-07:05

1 stop24h 05m

$1,604

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 22/5

09:15-22:47

2 stops27h 32m

Boston Logan Intl

Sat 6/6

10:55-06:35

1 stop29h 40m

$1,610

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/4

09:10-16:53

1 stop21h 43m

Boston Logan Intl

Tue 12/5

17:00-07:05

1 stop24h 05m

$1,618

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 6/2

07:20-17:20

2 stops26h 00m

Boston Logan Intl

Fri 20/2

16:04-13:00

2 stops28h 56m

$1,621

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 21/5

09:20-09:45

2 stops38h 25m

Boston Logan Intl

Fri 5/6

13:30-07:20

2 stops27h 50m

$1,645

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 8/3

11:20-18:31

1 stop23h 11m

Boston Logan Intl

Sun 15/3

17:20-09:00

1 stop24h 40m

$1,648

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/4

09:20-22:38

2 stops27h 18m

Boston Logan Intl

Tue 12/5

15:08-07:20

2 stops26h 12m

$1,661

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/4

09:20-22:38

2 stops27h 18m

Boston Logan Intl

Tue 12/5

15:08-07:20

2 stops26h 12m

$1,676

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 30/4

09:20-22:38

2 stops27h 18m

Boston Logan Intl

Tue 12/5

10:35-07:20

3 stops30h 45m

$1,679

Flights are sorted by cheapest return flights first.

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

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 $1,502. The month of November is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,679.

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 $1,824 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 $1,689 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 10% 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 January 2026, prices for Sydney to Boston flights are approximately 23% 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

21h 16m

Direct flights

None
The fastest flight from Sydney to Boston takes 21h 16m
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 16m.

  • 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 $728Free cancellationRating
7.6
431 reviews
Search Virgin Australia flights
DeltaPriceFrom $937Free cancellationRating
7.9
8,097 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $938Free cancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
Air CanadaPriceFrom $1,164Free cancellationRating
7.1
10,651 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,167Free cancellationRating
7.4
9,194 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,296Free cancellationRating
7.2
11,182 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,540Free cancellationRating
8.0
573 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,544Free cancellationRating
7.5
974 reviews
Search Qantas Airways flights
Cathay PacificPriceFrom $1,806Free cancellationRating
7.6
1,143 reviews
Search Cathay Pacific flights
Japan AirlinesPriceFrom $1,829Free cancellationRating
8.3
1,692 reviews
Search Japan Airlines flights

Travelling to a place near Boston?

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