S$654 Cheap Flights from Boston to Bangkok

View S$654 flight on Mon, 8 Dec, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Suvarnabhumi Intl. Airport (BKK)

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Cheap Flights from Boston to Bangkok (BOS-BKK)

Prices were available within the past 7 days and start at S$654 for one-way flights and S$1,071 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cathay Pacific
Thu, 4 Sep - Mon, 8 Sep
BOS
Boston
BKK
Bangkok
S$1,071 Return, found 4 days ago
S$1,071
Return
found 4 days ago
Select Cathay Pacific flight, departing Thu, 4 Sep from Boston to Bangkok, returning Mon, 8 Sep, priced at S$1,071 found 4 days ago
Korean Air
Thu, 4 Sep - Mon, 8 Sep
BOS
Boston
BKK
Bangkok
S$1,118 Return, found 4 days ago
S$1,118
Return
found 4 days ago
Select Korean Air flight, departing Thu, 4 Sep from Boston to Bangkok, returning Mon, 8 Sep, priced at S$1,118 found 4 days ago
Cathay Pacific
Sat, 29 Nov - Sun, 7 Dec
BOS
Boston
BKK
Bangkok
S$1,125 Return, found 4 days ago
S$1,125
Return
found 4 days ago
Select Cathay Pacific flight, departing Sat, 29 Nov from Boston to Bangkok, returning Sun, 7 Dec, priced at S$1,125 found 4 days ago
Cathay Pacific
Thu, 2 Oct - Sat, 18 Oct
BOS
Boston
BKK
Bangkok
S$1,126 Return, found 1 day ago
S$1,126
Return
found 1 day ago
Select Cathay Pacific flight, departing Thu, 2 Oct from Boston to Bangkok, returning Sat, 18 Oct, priced at S$1,126 found 1 day ago
Etihad Airways
Sat, 18 Oct - Sun, 26 Oct
BOS
Boston
BKK
Bangkok
S$1,131 Return, found 4 days ago
S$1,131
Return
found 4 days ago
Select Etihad Airways flight, departing Sat, 18 Oct from Boston to Bangkok, returning Sun, 26 Oct, priced at S$1,131 found 4 days ago
Etihad Airways
Thu, 2 Oct - Sat, 18 Oct
BOS
Boston
BKK
Bangkok
S$1,132 Return, found 1 day ago
S$1,132
Return
found 1 day ago
Select Etihad Airways flight, departing Thu, 2 Oct from Boston to Bangkok, returning Sat, 18 Oct, priced at S$1,132 found 1 day ago
Cathay Pacific
Sat, 29 Nov - Sun, 7 Dec
BOS
Boston
BKK
Bangkok
S$1,180 Return, found 4 days ago
S$1,180
Return
found 4 days ago
Select Cathay Pacific flight, departing Sat, 29 Nov from Boston to Bangkok, returning Sun, 7 Dec, priced at S$1,180 found 4 days ago
American Airlines
Mon, 25 Aug - Mon, 8 Sep
BOS
Boston
BKK
Bangkok
S$1,233 Return, found 4 days ago
S$1,233
Return
found 4 days ago
Select American Airlines flight, departing Mon, 25 Aug from Boston to Bangkok, returning Mon, 8 Sep, priced at S$1,233 found 4 days ago
Japan Airlines
Mon, 25 Aug - Mon, 8 Sep
BOS
Boston
BKK
Bangkok
S$1,256 Return, found 4 days ago
S$1,256
Return
found 4 days ago
Select Japan Airlines flight, departing Mon, 25 Aug from Boston to Bangkok, returning Mon, 8 Sep, priced at S$1,256 found 4 days ago
Delta
Thu, 4 Sep - Mon, 8 Sep
BOS
Boston
BKK
Bangkok
S$1,292 Return, found 4 days ago
S$1,292
Return
found 4 days ago
Select Delta flight, departing Thu, 4 Sep from Boston to Bangkok, returning Mon, 8 Sep, priced at S$1,292 found 4 days ago

Find the cheapest month to fly from Boston (BOS) to Bangkok (BKK)

September is typically the cheapest month to fly

From S$1,002 - S$1,872 per traveller.

Graph displaying average flight prices per month

Boston to Bangkok route information
Origin airport
Logan Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air France, American Airlines, Cathay Pacific, Condor, Emirates, Etihad Airways, Gulf Air, Japan Airlines, KLM, Qatar Airways, Singapore Airlines, Thai Airways International, Turkish Airlines
Return price
S$1,070
Distance
13644 km

Flights from Boston to Bangkok

There are several airlines that operate frequent flights from Boston (BOS) to Bangkok (BKK) including

The earliest flight leaves Logan Intl. Airport at 01:30 and arrives at Suvarnabhumi Intl. Airport at 00:40. The last flight of the day departs Boston at 23:50 and arrives at Bangkok at 23:35.

The flight distance from Boston to Bangkok is about 15079 km, the shortest flight is 19 hours 35 minutes with Virgin Atlantic.

Expedia lets you search across the largest number of airlines and Bangkok 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 Bangkok 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 Bangkok trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Bangkok 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 Bangkok 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 (BOS) to Suvarnabhumi Intl. Airport (BKK)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from Logan Intl. Airport to Bangkok Airport was S$1,071. Fares this good don't wait forever, so make sure you 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 Logan Intl. Airport to Suvarnabhumi Airport?
This can differ from airline to airline, 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 Suvarnabhumi 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 to BKK flights, you'll see a "no change fees" filter for you to select.
How far is the flight from BOS to BKK?
With around 13,700 kilometres separating Boston and Bang Phli, your flight will be a long one. Pack wisely and make your journey comfortable. Things like an eye mask and a cosy travel pillow can make a massive difference.
Which airlines fly direct from BOS to Suvarnabhumi Intl. Airport (BKK)?
Unfortunately, there are no airlines that directly fly between BOS and Suvarnabhumi Intl. Airport (BKK). You'll have to book a flight with at least one stop.
Are BOS to Bangkok Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so there are no guarantees. While last-minute flight deals between Logan Intl. Airport (BOS) and Suvarnabhumi Intl. Airport (BKK) are of course possible, it's also a good idea to monitor prices well before you fly. In fact, some air carriers release their prices up to 12 months ahead of the departure date. Expedia is continuously updating the best bargains around, so check back often and be ready to grab your seat when prices drop.

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