S$804 Cheap Flights from Boston to Sydney

View S$804 flight on Fri, 15 Aug, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Sydney Airport (SYD)

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Cheap Flights from Boston to Sydney (BOS-SYD)

Prices were available within the past 7 days and start at S$804 for one-way flights and S$1,611 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,611 Return, found 4 days ago
S$1,611
Return
found 4 days ago
Select All Nippon Airways flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,611 found 4 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,680 Return, found 4 days ago
S$1,680
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,680 found 4 days ago
Delta
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,680 Return, found 4 days ago
S$1,680
Return
found 4 days ago
Select Delta flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,680 found 4 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,710 Return, found 4 days ago
S$1,710
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,710 found 4 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,717 Return, found 4 days ago
S$1,717
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,717 found 4 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,724 Return, found 4 days ago
S$1,724
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,724 found 4 days ago
Qantas Airways
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,731 Return, found 4 days ago
S$1,731
Return
found 4 days ago
Select Qantas Airways flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,731 found 4 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,733 Return, found 4 days ago
S$1,733
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,733 found 4 days ago
Qantas Airways
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$1,738 Return, found 4 days ago
S$1,738
Return
found 4 days ago
Select Qantas Airways flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$1,738 found 4 days ago
Air Canada
Mon, 18 Aug - Mon, 25 Aug
BOS
Boston
SYD
Sydney
S$3,034 Return, found 4 days ago
S$3,034
Return
found 4 days ago
Select Air Canada flight, departing Mon, 18 Aug from Boston to Sydney, returning Mon, 25 Aug, priced at S$3,034 found 4 days ago

Find the cheapest month to fly from Boston (BOS) to Sydney (SYD)

April is typically the cheapest month to fly

From S$1,021 - S$2,214 per traveller.

Graph displaying average flight prices per month

Boston to Sydney route information
Origin airport
Logan Intl.
Destination airport
Kingsford Smith Intl.
Return price
S$1,610
Distance
16155 km

Flights from Boston to Sydney

There are several airlines that operate frequent flights from Boston (BOS) to Sydney (SYD) including

The earliest flight leaves Logan Intl. Airport at 01:30 and arrives at Kingsford Smith Intl. Airport at 06:05. The last flight of the day departs Boston at 18:43 and arrives at Sydney at 20:45.

The flight distance from Boston to Sydney is about 16988 km, the shortest flight is 22 hours 03 minutes with Virgin Australia."

Expedia lets you search across the largest number of airlines and Sydney flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Boston Sydney flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Boston to Sydney trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Sydney flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Boston to Sydney with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Logan Intl. Airport to Sydney Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from Logan Intl. Airport (BOS) to SYD was S$1,611. Cheap fares don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BOS to Sydney Airport?
This differs between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where there are simple instructions on how to cancel your flight online.
How do I find cheap flights from BOS to Sydney Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Logan Intl. Airport (BOS) to Mascot Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Logan Intl. Airport (BOS) to Kingsford Smith Intl. Airport (SYD)?
You'll have 16,300 kilometres to cover on the long-haul Boston to Sydney route. Wear layers of comfortable clothes and consider taking a sleep mask and earplugs.
Which airlines fly direct from BOS to Mascot Airport?
If you want to travel straight from Logan Intl. Airport to SYD, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.
Are BOS to Sydney Airport flight tickets cheaper when they're purchased at the last minute?
Fares from Logan Intl. Airport to Sydney Airport are available up to 12 months before departure on Expedia. And although you may score great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices --- and you can avoid landing the dreaded middle seat! We frequently update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

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