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Cheap flights from Sydney to Boston from $799

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

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Air New Zealand Logo
11:55 - 06:21
SYD
-
BOS
32h 26m2 stops
Air New Zealand Logo
09:40 - 08:45
BOS
-
SYD
33h 05m2 stops
$1,593Air New Zealand
Mon, 20 Apr - Wed, 20 May
Air Canada Logo
11:20 - 19:42
SYD
-
BOS
24h 22m2 stops
Air Canada Logo
15:35 - 09:35
BOS
-
SYD
26h 00m2 stops
$1,618Air Canada
Mon, 16 Feb - Thu, 26 Feb
Air Canada Logo
10:25 - 21:27
SYD
-
BOS
26h 02m2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m2 stops
$1,620Air Canada
Thu, 19 Mar - Tue, 7 Apr
Air Canada Logo
09:20 - 09:51
SYD
-
BOS
38h 31m2 stops
Air Canada Logo
10:35 - 07:20
BOS
-
SYD
30h 45m2 stops
$1,624Air Canada
Mon, 13 Apr - Tue, 28 Apr
Air Canada Logo
16:00 - 09:32
SYD
-
BOS
33h 32m2 stops
Air Canada Logo
18:40 - 09:35
BOS
-
SYD
46h 55m3 stops
$1,650Air Canada
Mon, 19 Jan - Mon, 2 Feb
Air Canada Logo
10:25 - 09:32
SYD
-
BOS
38h 07m2 stops
Air Canada Logo
18:40 - 07:20
BOS
-
SYD
46h 40m3 stops
$1,651Air Canada
Thu, 19 Mar - Tue, 7 Apr
Air Canada Logo
09:20 - 09:51
SYD
-
BOS
38h 31m2 stops
Air Canada Logo
18:40 - 07:20
BOS
-
SYD
46h 40m3 stops
$1,656Air Canada
Mon, 13 Apr - Tue, 28 Apr
Air Canada Logo
11:20 - 17:50
SYD
-
BOS
70h 30m3 stops
Air Canada Logo
10:15 - 09:35
BOS
-
SYD
31h 20m3 stops
$1,657Air Canada
Mon, 19 Jan - Mon, 2 Feb
Air Canada Logo
09:20 - 09:51
SYD
-
BOS
38h 31m2 stops
Air Canada Logo
18:25 - 07:20
BOS
-
SYD
46h 55m3 stops
$1,662Air Canada
Mon, 20 Apr - Wed, 20 May
Air Canada Logo
09:20 - 09:52
SYD
-
BOS
38h 32m2 stops
Air Canada Logo
05:50 - 07:20
BOS
-
SYD
35h 30m2 stops
$1,664Air Canada
Thu, 23 Apr - Fri, 8 May

Air Canada flights from Sydney to Boston

Our best Air Canada deals on Sydney to Boston flight tickets
Air Canada
16 Feb
SYD11:20Sydney Kingsford Smith
24h 22m
2 stops
BOS19:42Boston Logan Intl
26 Feb
BOS15:35Boston Logan Intl
26h 00m
2 stops
SYD09:35Sydney Kingsford Smith
$1,618
Find similar
Air Canada
19 Mar
SYD10:25Sydney Kingsford Smith
26h 02m
2 stops
BOS21:27Boston Logan Intl
7 Apr
BOS10:35Boston Logan Intl
30h 45m
2 stops
SYD07:20Sydney Kingsford Smith
$1,620
Find similar
Air Canada
13 Apr
SYD09:20Sydney Kingsford Smith
38h 31m
2 stops
BOS09:51Boston Logan Intl
28 Apr
BOS10:35Boston Logan Intl
30h 45m
2 stops
SYD07:20Sydney Kingsford Smith
$1,624
Find similar

Qantas Airways flights from Sydney to Boston

Our best Qantas Airways deals on Sydney to Boston flight tickets
Qantas Airways
13 Apr
SYD12:00Sydney Kingsford Smith
25h 12m
1 stop
BOS23:12Boston Logan Intl
28 Apr
BOS18:15Boston Logan Intl
22h 50m
1 stop
SYD07:05Sydney Kingsford Smith
$1,717
Find similar
Qantas Airways
23 Apr
SYD12:00Sydney Kingsford Smith
40h 49m
1 stop
BOS14:49Boston Logan Intl
8 May
BOS08:05Boston Logan Intl
33h 00m
1 stop
SYD07:05Sydney Kingsford Smith
$2,159
Find similar
Qantas Airways
5 Feb
SYD11:20Sydney Kingsford Smith
21h 01m
1 stop
BOS16:21Boston Logan Intl
9 Feb
BOS16:19Boston Logan Intl
27h 56m
2 stops
SYD12:15Sydney Kingsford Smith
$2,295
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 27 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

Mon 20/4

11:55-06:21

2 stops32h 26m

Boston Logan Intl

Wed 20/5

09:40-08:45

2 stops33h 05m

$1,593

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 16/2

11:20-19:42

2 stops24h 22m

Boston Logan Intl

Thu 26/2

15:35-09:35

2 stops26h 00m

$1,618

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 19/3

10:25-21:27

2 stops26h 02m

Boston Logan Intl

Tue 7/4

10:35-07:20

2 stops30h 45m

$1,620

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 13/4

09:20-09:51

2 stops38h 31m

Boston Logan Intl

Tue 28/4

10:35-07:20

2 stops30h 45m

$1,624

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 19/1

16:00-09:32

2 stops33h 32m

Boston Logan Intl

Mon 2/2

18:40-09:35

3 stops46h 55m

$1,650

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 19/3

10:25-09:32

2 stops38h 07m

Boston Logan Intl

Tue 7/4

18:40-07:20

3 stops46h 40m

$1,651

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 13/4

09:20-09:51

2 stops38h 31m

Boston Logan Intl

Tue 28/4

18:40-07:20

3 stops46h 40m

$1,656

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 19/1

11:20-17:50

3 stops70h 30m

Boston Logan Intl

Mon 2/2

10:15-09:35

3 stops31h 20m

$1,657

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 20/4

09:20-09:51

2 stops38h 31m

Boston Logan Intl

Wed 20/5

18:25-07:20

3 stops46h 55m

$1,662

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 23/4

09:20-09:52

2 stops38h 32m

Boston Logan Intl

Fri 8/5

05:50-07:20

2 stops35h 30m

$1,664

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?

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 $1,536. The month of November is another great option to travel to Boston, with average flight prices from Sydney averaging around $1,705.

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 $1,981. 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 $2,520. 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 $1,942. 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 $2,134 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 $1,923 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 $1,650 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 32% 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

24h 15m

Direct flights

None
The fastest flight from Sydney to Boston takes 24h 15m
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 24h 15m.

  • 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 $953Free cancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
Virgin AustraliaPriceFrom $1,023Free cancellationRating
7.6
430 reviews
Search Virgin Australia flights
Air CanadaPriceFrom $1,192Free cancellationRating
7.1
10,562 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,231Free cancellationRating
7.4
9,116 reviews
Search United Airlines flights
DeltaPriceFrom $1,233Free cancellationRating
7.9
8,022 reviews
Search Delta flights
American AirlinesPriceFrom $1,317Free cancellationRating
7.2
11,069 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,564Free cancellationRating
8.0
560 reviews
Search Air New Zealand flights
Qantas AirwaysPriceFrom $1,608Free cancellationRating
7.5
957 reviews
Search Qantas Airways flights
Japan AirlinesPriceFrom $1,755Free cancellationRating
8.3
1,662 reviews
Search Japan Airlines flights
Cathay PacificPriceFrom $1,835Free cancellationRating
7.6
1,106 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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