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Cheap flights from Sydney to Boston from $493

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 8/27. 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 round-trip flights

Air Canada Logo
11:20 am - 7:12 pmSYD-BOS
47h 52m2 stops
Air Canada Logo
5:30 am - 6:55 amBOS-SYD
57h 25m2 stops
$788Air Canada
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Thu, Nov 27 - Fri, Dec 12
Air Canada Logo
11:20 am - 9:32 amSYD-BOS
38h 12m2 stops
Air Canada Logo
5:30 am - 6:55 amBOS-SYD
33h 25m2 stops
$791Air Canada
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Wed, Nov 26 - Thu, Dec 11
American Airlines Logo
9:10 am - 6:47 amSYD-BOS
35h 37m1 stop
American Airlines Logo
6:00 pm - 7:05 amBOS-SYD
23h 05m1 stop
$814American Airlines
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Sun, Sep 7 - Tue, Sep 16
British Airways Logo
9:10 am - 6:43 pmSYD-BOS
23h 33m2 stops
British Airways Logo
5:00 pm - 7:05 amBOS-SYD
24h 05m2 stops
$824British Airways
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Tue, Aug 26 - Tue, Sep 2
British Airways Logo
9:10 am - 7:15 pmSYD-BOS
24h 05m2 stops
British Airways Logo
6:07 pm - 7:05 amBOS-SYD
22h 58m1 stop
$827British Airways
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Tue, Aug 26 - Tue, Sep 2
American Airlines Logo
9:10 am - 10:34 pmSYD-BOS
27h 24m1 stop
American Airlines Logo
12:05 pm - 7:05 amBOS-SYD
29h 00m1 stop
$829American Airlines
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Mon, Aug 11 - Sat, Aug 30
United Airlines Logo
10:20 am - 5:13 pmSYD-BOS
20h 53m1 stop
United Airlines Logo
11:00 am - 6:55 amBOS-SYD
29h 55m3 stops
$830United Airlines
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Thu, Sep 4 - Mon, Sep 15
United Airlines Logo
10:30 am - 6:56 pmSYD-BOS
23h 26m2 stops
United Airlines Logo
6:10 pm - 9:05 amBOS-SYD
23h 55m1 stop
$831United Airlines
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Wed, Oct 15 - Sat, Nov 1
Delta Logo
10:25 am - 7:27 pmSYD-BOS
24h 02m1 stop
Delta Logo
6:15 am - 7:35 amBOS-SYD
34h 20m1 stop
$835Delta
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Wed, Oct 15 - Wed, Oct 22
Delta Logo
10:25 am - 7:27 pmSYD-BOS
24h 02m1 stop
Delta Logo
8:55 pm - 7:35 amBOS-SYD
43h 40m1 stop
$836Delta
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Tue, Oct 14 - Mon, Oct 20

Air Canada flights from Sydney to Boston

Our best Air Canada deals on Sydney to Boston flight tickets
Air Canada
Nov 27
SYD11:20 amSydney Kingsford Smith
47h 52m
2 stops
BOS7:12 pmBoston Logan Intl
Dec 12
BOS5:30 amBoston Logan Intl
57h 25m
2 stops
SYD6:55 amSydney Kingsford Smith
$788
Find similar
Air Canada
Nov 26
SYD11:20 amSydney Kingsford Smith
38h 12m
2 stops
BOS9:32 amBoston Logan Intl
Dec 11
BOS5:30 amBoston Logan Intl
33h 25m
2 stops
SYD6:55 amSydney Kingsford Smith
$791
Find similar
Air Canada
Nov 25
SYD11:20 amSydney Kingsford Smith
43h 32m
2 stops
BOS2:52 pmBoston Logan Intl
Dec 10
BOS5:30 amBoston Logan Intl
57h 25m
2 stops
SYD6:55 amSydney Kingsford Smith
$793
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American Airlines flights from Sydney to Boston

Our best American Airlines deals on Sydney to Boston flight tickets
American Airlines
Sep 7
SYD9:10 amSydney Kingsford Smith
35h 37m
1 stop
BOS6:47 amBoston Logan Intl
Sep 16
BOS6:00 pmBoston Logan Intl
23h 05m
1 stop
SYD7:05 amSydney Kingsford Smith
$814
Find similar
American Airlines
Aug 1
SYD9:10 amSydney Kingsford Smith
27h 21m
1 stop
BOS10:31 pmBoston Logan Intl
Aug 16
BOS1:20 pmBoston Logan Intl
27h 45m
2 stops
SYD7:05 amSydney Kingsford Smith
$818
Find similar
American Airlines
Aug 1
SYD9:10 amSydney Kingsford Smith
27h 22m
2 stops
BOS10:32 pmBoston Logan Intl
Aug 14
BOS11:14 amBoston Logan Intl
29h 51m
2 stops
SYD7:05 amSydney Kingsford Smith
$819
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated July 31, 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

Thu 11/27

11:20 am-7:12 pm

2 stops47h 52m

Boston Logan Intl

Fri 12/12

5:30 am-6:55 am

2 stops57h 25m

$788

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 11/26

11:20 am-9:32 am

2 stops38h 12m

Boston Logan Intl

Thu 12/11

5:30 am-6:55 am

2 stops33h 25m

$791

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 9/7

9:10 am-6:47 am

1 stop35h 37m

Boston Logan Intl

Tue 9/16

6:00 pm-7:05 am

1 stop23h 05m

$814

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 8/26

9:10 am-6:43 pm

2 stops23h 33m

Boston Logan Intl

Tue 9/2

5:00 pm-7:05 am

2 stops24h 05m

$824

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 8/26

9:10 am-7:15 pm

2 stops24h 05m

Boston Logan Intl

Tue 9/2

6:07 pm-7:05 am

1 stop22h 58m

$827

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 8/11

9:10 am-10:34 pm

1 stop27h 24m

Boston Logan Intl

Sat 8/30

12:05 pm-7:05 am

1 stop29h 00m

$829

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 9/4

10:20 am-5:13 pm

1 stop20h 53m

Boston Logan Intl

Mon 9/15

11:00 am-6:55 am

3 stops29h 55m

$830

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/15

10:30 am-6:56 pm

2 stops23h 26m

Boston Logan Intl

Sat 11/1

6:10 pm-9:05 am

1 stop23h 55m

$831

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/15

10:25 am-7:27 pm

1 stop24h 02m

Boston Logan Intl

Wed 10/22

6:15 am-7:35 am

1 stop34h 20m

$835

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 10/14

10:25 am-7:27 pm

1 stop24h 02m

Boston Logan Intl

Mon 10/20

8:55 pm-7:35 am

1 stop43h 40m

$836

Flights are sorted by cheapest round-trip 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, February 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 $1,203. If you aren’t able to travel during the month of February, then book flights to Boston from Sydney during March instead. Flights to Boston in March, while not as cheap as those in February, still average around $1,203.

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

The cheapest day to depart from Sydney to Boston is on a Thursday when prices can be found for as low as $1,280. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $2,147.

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 morning. momondo users have found flights departing from Sydney to Boston in the morning for as low as $1,444. 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 afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $1,844 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 $1,354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sydney for as low as $1,164 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 22% 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 July 2025, prices for Sydney to Boston flights are approximately 28% 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 round-trip 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

$493

Fastest flight time

20h 53m

Direct flights

None

Airports in Boston

1 airport
The best one-way flight to Boston from Sydney in the past 72 hours is $493. The best round-trip flight deal from Sydney to Boston found on momondo in the last 72 hours is $788.
The fastest flight from Sydney to Boston takes 20h 53m
There are no direct flights from Sydney to Boston. Popular non-direct route for this connection is Sydney Kingsford Smith Airport - Boston Logan Intl Airport.
There is 1 airport near Boston: Boston Logan Intl (BOS)
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  • How far is Sydney Kingsford Smith to Boston Logan Intl by plane?

    The distance between Sydney Kingsford Smith and Boston Logan Intl is about 10084.4 mi. Flights usually cover this in 20h 53m, depending on flying conditions and air traffic around both airports.

  • 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 are refreshed on a daily basis.

  • 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 travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted 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
DeltaPriceFrom $842Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $895Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,081Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,102Free CancellationRating
7.5
887 reviews
Search Qantas Airways flights
Virgin AustraliaPriceFrom $1,280Free CancellationRating
7.5
411 reviews
Search Virgin Australia flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Hampton
Old Orchard Beach
York Beach
Plymouth
Kennebunkport
Nashua
Cambridge
Narragansett
Laconia
Brockton
South Yarmouth
Gloucester
Concord
Everett
Wells
Falmouth
Middletown

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Boston for you.

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

Yes. All flights to Boston from Sydney on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Sydney to Boston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Boston from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Boston trip

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