S$558 Cheap Flights from Boston to Bangkok

View S$558 flight on Thu, 13 Nov, 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Boston to Bangkok (BOS-BKK)

Prices were available within the past 7 days and start at S$558 for one-way flights and S$1,057 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Thu, 13 Nov - Wed, 19 Nov
BOS
Boston
BKK
Bangkok
S$1,057 Return, found 2 days ago
S$1,057
Return
found 2 days ago
Select Etihad Airways flight, departing Thu, 13 Nov from Boston to Bangkok, returning Wed, 19 Nov, priced at S$1,057 found 2 days ago
Korean Air
Thu, 20 Nov - Wed, 3 Dec
BOS
Boston
BKK
Bangkok
S$1,120 Return, found 6 days ago
S$1,120
Return
found 6 days ago
Select Korean Air flight, departing Thu, 20 Nov from Boston to Bangkok, returning Wed, 3 Dec, priced at S$1,120 found 6 days ago
Korean Air
Thu, 20 Nov - Wed, 3 Dec
BOS
Boston
BKK
Bangkok
S$1,120 Return, found 6 days ago
S$1,120
Return
found 6 days ago
Select Korean Air flight, departing Thu, 20 Nov from Boston to Bangkok, returning Wed, 3 Dec, priced at S$1,120 found 6 days ago
Cathay Pacific
Wed, 29 Oct - Sat, 1 Nov
BOS
Boston
BKK
Bangkok
S$1,165 Return, found 1 hour ago
S$1,165
Return
found 1 hour ago
Select Cathay Pacific flight, departing Wed, 29 Oct from Boston to Bangkok, returning Sat, 1 Nov, priced at S$1,165 found 1 hour ago
Cathay Pacific
Thu, 13 Nov - Wed, 19 Nov
BOS
Boston
BKK
Bangkok
S$1,194 Return, found 2 days ago
S$1,194
Return
found 2 days ago
Select Cathay Pacific flight, departing Thu, 13 Nov from Boston to Bangkok, returning Wed, 19 Nov, priced at S$1,194 found 2 days ago
Cathay Pacific
Mon, 5 Jan - Sun, 1 Feb
BOS
Boston
BKK
Bangkok
S$1,196 Return, found 1 day ago
S$1,196
Return
found 1 day ago
Select Cathay Pacific flight, departing Mon, 5 Jan from Boston to Bangkok, returning Sun, 1 Feb, priced at S$1,196 found 1 day ago
Japan Airlines
Thu, 13 Nov - Wed, 19 Nov
BOS
Boston
BKK
Bangkok
S$1,307 Return, found 2 days ago
S$1,307
Return
found 2 days ago
Select Japan Airlines flight, departing Thu, 13 Nov from Boston to Bangkok, returning Wed, 19 Nov, priced at S$1,307 found 2 days ago
Qatar Airways
Mon, 5 Jan - Sun, 1 Feb
BOS
Boston
BKK
Bangkok
S$1,328 Return, found 1 day ago
S$1,328
Return
found 1 day ago
Select Qatar Airways flight, departing Mon, 5 Jan from Boston to Bangkok, returning Sun, 1 Feb, priced at S$1,328 found 1 day ago
Turkish Airlines
Thu, 13 Nov - Wed, 19 Nov
BOS
Boston
BKK
Bangkok
S$1,339 Return, found 2 days ago
S$1,339
Return
found 2 days ago
Select Turkish Airlines flight, departing Thu, 13 Nov from Boston to Bangkok, returning Wed, 19 Nov, priced at S$1,339 found 2 days ago
United
Wed, 29 Oct - Sat, 1 Nov
BOS
Boston
BKK
Bangkok
S$1,400 Return, found 1 hour ago
S$1,400
Return
found 1 hour ago
Select United flight, departing Wed, 29 Oct from Boston to Bangkok, returning Sat, 1 Nov, priced at S$1,400 found 1 hour ago

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

September is typically the cheapest month to fly

From S$979 - S$1,691 per traveller.

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$1,057. 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.

Travel information

Travel information

Origin airport
Logan Intl.
Destination airport
Suvarnabhumi Intl.
Return price
S$1,056
Distance
13644 km

Book with confidence

Book with confidence

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!

Flights from Boston to Bangkok

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.