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Cheap flights from Sydney to Boston from $626

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 8/13. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:10 am - 10:17 pm
SYD
-
BOS
27h 07m
2 stops
British Airways Logo
3:20 pm - 7:30 am
BOS
-
SYD
26h 10m
2 stops
$970British Airways
Mon, Jul 27 - Tue, Aug 11
British Airways Logo
9:10 am - 9:00 pm
SYD
-
BOS
25h 50m
2 stops
British Airways Logo
4:06 pm - 7:05 am
BOS
-
SYD
24h 59m
2 stops
$971British Airways
Mon, Jul 20 - Tue, Aug 4
Iberia Logo
9:10 am - 10:17 pm
SYD
-
BOS
27h 07m
2 stops
Iberia Logo
10:30 am - 7:05 am
BOS
-
SYD
30h 35m
1 stop
$973Iberia
Mon, Jul 20 - Tue, Aug 4
British Airways Logo
9:10 am - 8:59 pm
SYD
-
BOS
25h 49m
2 stops
British Airways Logo
3:20 pm - 7:05 am
BOS
-
SYD
25h 45m
2 stops
$974British Airways
Mon, Jul 27 - Tue, Aug 11
British Airways Logo
9:10 am - 4:38 pm
SYD
-
BOS
21h 28m
1 stop
British Airways Logo
5:07 pm - 7:05 am
BOS
-
SYD
23h 58m
2 stops
$976British Airways
Mon, Jul 20 - Tue, Aug 4
British Airways Logo
9:10 am - 4:38 pm
SYD
-
BOS
21h 28m
1 stop
British Airways Logo
3:20 pm - 7:05 am
BOS
-
SYD
25h 45m
2 stops
$978British Airways
Mon, Jul 27 - Tue, Aug 11
British Airways Logo
9:10 am - 11:43 pm
SYD
-
BOS
28h 33m
1 stop
British Airways Logo
10:30 am - 7:05 am
BOS
-
SYD
30h 35m
1 stop
$979British Airways
Mon, Jul 20 - Tue, Aug 4
Qantas Airways Logo
9:10 am - 4:38 pm
SYD
-
BOS
21h 28m
1 stop
Qantas Airways Logo
5:33 pm - 7:30 am
BOS
-
SYD
23h 57m
1 stop
$981Qantas Airways
Mon, Jul 13 - Wed, Jul 29
British Airways Logo
9:10 am - 4:38 pm
SYD
-
BOS
21h 28m
1 stop
British Airways Logo
10:30 am - 7:05 am
BOS
-
SYD
30h 35m
1 stop
$983British Airways
Mon, Jul 27 - Tue, Aug 11
American Airlines Logo
9:10 am - 4:38 pm
SYD
-
BOS
21h 28m
1 stop
American Airlines Logo
4:06 pm - 7:05 am
BOS
-
SYD
24h 59m
2 stops
$992American Airlines
Mon, Jul 20 - Tue, Aug 4

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Qantas Airways flights from Sydney to Boston

Our best Qantas Airways deals on Sydney to Boston flight tickets
Qantas Airways
Jul 13
SYD9:10 amSydney Kingsford Smith
21h 28m
1 stop
BOS4:38 pmBoston Logan Intl
Jul 29
BOS5:33 pmBoston Logan Intl
23h 57m
1 stop
SYD7:30 amSydney Kingsford Smith
$981
Qantas Airways
Jul 20
SYD9:10 amSydney Kingsford Smith
21h 28m
1 stop
BOS4:38 pmBoston Logan Intl
Aug 4
BOS5:33 pmBoston Logan Intl
23h 32m
1 stop
SYD7:05 amSydney Kingsford Smith
$997
Qantas Airways
Aug 26
SYD12:00 pmSydney Kingsford Smith
21h 42m
1 stop
BOS7:42 pmBoston Logan Intl
Sep 9
BOS12:59 pmBoston Logan Intl
27h 56m
1 stop
SYD6:55 amSydney Kingsford Smith
$998

United Airlines flights from Sydney to Boston

Our best United Airlines deals on Sydney to Boston flight tickets
United Airlines
Jul 20
SYD9:30 amSydney Kingsford Smith
24h 00m
2 stops
BOS7:30 pmBoston Logan Intl
Jul 28
BOS2:15 pmBoston Logan Intl
26h 45m
2 stops
SYD7:00 amSydney Kingsford Smith
$1,013
United Airlines
Jun 23
SYD9:30 amSydney Kingsford Smith
26h 23m
2 stops
BOS9:53 pmBoston Logan Intl
Jul 5
BOS6:00 amBoston Logan Intl
34h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
$1,014
United Airlines
Jul 13
SYD10:20 amSydney Kingsford Smith
27h 39m
2 stops
BOS11:59 pmBoston Logan Intl
Jul 29
BOS4:15 pmBoston Logan Intl
24h 40m
1 stop
SYD6:55 amSydney Kingsford Smith
$1,018

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 June 22, 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

Cheapest round-trip

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/27

9:10 am-10:17 pm

2 stops27h 07m

Boston Logan Intl

Tue 8/11

3:20 pm-7:30 am

2 stops26h 10m

$970

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/20

9:10 am-9:00 pm

2 stops25h 50m

Boston Logan Intl

Tue 8/4

4:06 pm-7:05 am

2 stops24h 59m

$971

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/20

9:10 am-10:17 pm

2 stops27h 07m

Boston Logan Intl

Tue 8/4

10:30 am-7:05 am

1 stop30h 35m

$973

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/27

9:10 am-8:59 pm

2 stops25h 49m

Boston Logan Intl

Tue 8/11

3:20 pm-7:05 am

2 stops25h 45m

$974

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/20

9:10 am-4:38 pm

1 stop21h 28m

Boston Logan Intl

Tue 8/4

5:07 pm-7:05 am

2 stops23h 58m

$976

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/27

9:10 am-4:38 pm

1 stop21h 28m

Boston Logan Intl

Tue 8/11

3:20 pm-7:05 am

2 stops25h 45m

$978

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/20

9:10 am-11:43 pm

1 stop28h 33m

Boston Logan Intl

Tue 8/4

10:30 am-7:05 am

1 stop30h 35m

$979
Quickest round-trip

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/13

9:10 am-4:38 pm

1 stop21h 28m

Boston Logan Intl

Wed 7/29

5:33 pm-7:30 am

1 stop23h 57m

$981

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/27

9:10 am-4:38 pm

1 stop21h 28m

Boston Logan Intl

Tue 8/11

10:30 am-7:05 am

1 stop30h 35m

$983

SydneyBoston

SYD - BOS

SYDBOS

Sydney Kingsford Smith

Mon 7/20

9:10 am-4:38 pm

1 stop21h 28m

Boston Logan Intl

Tue 8/4

4:06 pm-7:05 am

2 stops24h 59m

$992

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, January 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 $838. If you aren’t able to travel during the month of January, then book flights to Boston from Sydney during October instead. Flights to Boston in October, while not as cheap as those in January, still average around $848.

How far in advance should I book a flight from Sydney 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 $1,185 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 $1,057 on momondo.

Can stopping save me money on Sydney to Boston flights?

You could potentially save up to 21% 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 June 2026, prices for Sydney to Boston flights are approximately 19% 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

Fastest flight time

21h 18m

Direct flights

None
The fastest flight from Sydney to Boston takes 21h 18m
There are no direct flights from Sydney to Boston. There are no popular flight routes from Sydney to Boston.
Search flight deals

Frequently asked questions about flying from Sydney to Boston

  • 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 18m, 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
9,874 reviews
Search United Airlines flights
DeltaPriceFrom $839Free CancellationRating
7.8
8,422 reviews
Search Delta flights
Qantas AirwaysPriceFrom $900Free CancellationRating
7.5
1,048 reviews
Search Qantas Airways 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
Cambridge
York Beach
Kennebunkport
Plymouth
South Yarmouth
Laconia
Revere
Gloucester
Falmouth
Brockton
Warwick
Narragansett
South Portland
Chatham
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

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