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Cheap flights from Sydney to Boston from $476

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 10/15. 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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0 bags

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Cheap round-trip flights

American Airlines Logo
10:10 am - 4:55 pmSYD-BOS
21h 45m1 stop
American Airlines Logo
5:45 pm - 9:00 amBOS-SYD
23h 15m1 stop
$834American Airlines
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Wed, Oct 15 - Tue, Nov 18
American Airlines Logo
10:10 am - 10:33 pmSYD-BOS
27h 23m1 stop
American Airlines Logo
1:02 pm - 9:00 amBOS-SYD
28h 58m2 stops
$835American Airlines
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Fri, Oct 17 - Fri, Oct 31
British Airways Logo
11:20 am - 9:15 pmSYD-BOS
24h 55m2 stops
British Airways Logo
5:45 pm - 9:00 amBOS-SYD
23h 15m1 stop
$837British Airways
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Wed, Oct 29 - Wed, Nov 5
British Airways Logo
11:20 am - 10:33 pmSYD-BOS
26h 13m1 stop
British Airways Logo
5:45 pm - 9:00 amBOS-SYD
23h 15m1 stop
$839British Airways
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Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
10:30 am - 5:12 pmSYD-BOS
21h 42m1 stop
United Airlines Logo
6:10 pm - 9:05 amBOS-SYD
22h 55m1 stop
$851United Airlines
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Sun, Oct 12 - Sat, Nov 22
Delta Logo
10:25 am - 6:40 amSYD-BOS
35h 15m2 stops
Delta Logo
6:15 am - 7:35 amBOS-SYD
34h 20m1 stop
$852Delta
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Sun, Oct 12 - Sun, Oct 19
United Airlines Logo
12:10 pm - 11:41 pmSYD-BOS
27h 31m2 stops
United Airlines Logo
9:30 am - 9:05 amBOS-SYD
31h 35m1 stop
$862United Airlines
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Tue, Dec 16 - Thu, Jan 1
Delta Logo
10:25 am - 5:35 amSYD-BOS
34h 10m1 stop
Delta Logo
7:20 am - 7:35 amBOS-SYD
33h 15m2 stops
$958Delta
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Mon, Oct 13 - Sun, Oct 19
Qantas Airways Logo
10:10 am - 10:33 pmSYD-BOS
27h 23m1 stop
Qantas Airways Logo
12:00 pm - 8:05 amBOS-SYD
29h 05m1 stop
$1,097Qantas Airways
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Thu, Oct 16 - Wed, Oct 22
Virgin Australia Logo
10:30 am - 5:12 pmSYD-BOS
21h 42m1 stop
Virgin Australia Logo
6:00 am - 7:55 amBOS-SYD
34h 55m1 stop
$1,111Virgin Australia
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Sun, Oct 12 - Sun, Oct 19

Delta flights from Sydney to Boston

Our best Delta deals on Sydney to Boston flight tickets
Delta
Oct 12
SYD10:25 amSydney Kingsford Smith
35h 15m
2 stops
BOS6:40 amBoston Logan Intl
Oct 19
BOS6:15 amBoston Logan Intl
34h 20m
1 stop
SYD7:35 amSydney Kingsford Smith
$852
Find similar
Delta
Oct 13
SYD10:25 amSydney Kingsford Smith
34h 10m
1 stop
BOS5:35 amBoston Logan Intl
Oct 19
BOS7:20 amBoston Logan Intl
33h 15m
2 stops
SYD7:35 amSydney Kingsford Smith
$958
Find similar
Delta
Mar 11
SYD9:40 amSydney Kingsford Smith
26h 55m
1 stop
BOS9:35 pmBoston Logan Intl
Mar 15
BOS11:30 amBoston Logan Intl
27h 35m
2 stops
SYD6:05 amSydney Kingsford Smith
$959
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Air Canada flights from Sydney to Boston

Our best Air Canada deals on Sydney to Boston flight tickets
Air Canada
Oct 12
SYD10:20 amSydney Kingsford Smith
46h 18m
2 stops
BOS5:38 pmBoston Logan Intl
Oct 20
BOS6:20 pmBoston Logan Intl
47h 00m
2 stops
SYD8:20 amSydney Kingsford Smith
$841
Find similar
Air Canada
Oct 12
SYD10:20 amSydney Kingsford Smith
26h 05m
2 stops
BOS9:25 pmBoston Logan Intl
Nov 21
BOS7:55 pmBoston Logan Intl
45h 40m
2 stops
SYD9:35 amSydney Kingsford Smith
$869
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Air Canada
Oct 17
SYD10:20 amSydney Kingsford Smith
27h 19m
2 stops
BOS10:39 pmBoston Logan Intl
Nov 21
BOS7:55 pmBoston Logan Intl
45h 40m
2 stops
SYD9:35 amSydney Kingsford Smith
$875
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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 September 16, 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

Wed 10/15

10:10 am-4:55 pm

1 stop21h 45m

Boston Logan Intl

Tue 11/18

5:45 pm-9:00 am

1 stop23h 15m

$834

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Fri 10/17

10:10 am-10:33 pm

1 stop27h 23m

Boston Logan Intl

Fri 10/31

1:02 pm-9:00 am

2 stops28h 58m

$835

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/29

11:20 am-9:15 pm

2 stops24h 55m

Boston Logan Intl

Wed 11/5

5:45 pm-9:00 am

1 stop23h 15m

$837

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Wed 10/29

11:20 am-10:33 pm

1 stop26h 13m

Boston Logan Intl

Wed 11/5

5:45 pm-9:00 am

1 stop23h 15m

$839

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 10/12

10:30 am-5:12 pm

1 stop21h 42m

Boston Logan Intl

Sat 11/22

6:10 pm-9:05 am

1 stop22h 55m

$851

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 10/12

10:25 am-6:40 am

2 stops35h 15m

Boston Logan Intl

Sun 10/19

6:15 am-7:35 am

1 stop34h 20m

$852

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Tue 12/16

12:10 pm-11:41 pm

2 stops27h 31m

Boston Logan Intl

Thu 1/1

9:30 am-9:05 am

1 stop31h 35m

$862

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 10/13

10:25 am-5:35 am

1 stop34h 10m

Boston Logan Intl

Sun 10/19

7:20 am-7:35 am

2 stops33h 15m

$958

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Thu 10/16

10:10 am-10:33 pm

1 stop27h 23m

Boston Logan Intl

Wed 10/22

12:00 pm-8:05 am

1 stop29h 05m

$1,097

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Sun 10/12

10:30 am-5:12 pm

1 stop21h 42m

Boston Logan Intl

Sun 10/19

6:00 am-7:55 am

1 stop34h 55m

$1,111

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $1,144. If you aren’t able to travel during the month of October, then book flights to Boston from Sydney during March instead. Flights to Boston in March, while not as cheap as those in October, still average around $1,182.

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 $1,321 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 $1,129 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 1% 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 2025, prices for Sydney to Boston flights are approximately 18% 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

Direct flights

None
There are no direct flights from Sydney to Boston. There are no popular flight routes from Sydney to Boston.
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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 21h 42m, 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
United AirlinesPriceFrom $829Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $839Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Qantas AirwaysPriceFrom $1,102Free CancellationRating
7.5
905 reviews
Search Qantas Airways flights
Virgin AustraliaPriceFrom $1,504Free CancellationRating
7.5
416 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
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
Cambridge
South Yarmouth
Narragansett
Nashua
Gloucester
Brockton
Laconia
Falmouth
Concord
Everett
Wells
Chatham

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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