What is the cheapest airline that flies from Boston Logan Intl to Ko Samui?

Qatar Airways and Cathay Pacific are the most popular carriers operating from Boston Logan Intl to Ko Samui

What is the most punctual flight time for Boston to Ko Samui flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

How often are flights from Boston to Ko Samui delayed?

Historically, on average around 18% of flights between Boston and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Which airline has the best punctuality record on Boston to Ko Samui flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from Boston Logan Intl Airport to Ko Samui Airport?

Prices for flights from Boston Logan Intl Airport to Ko Samui Airport are updated daily.

How many operators does momondo search for flights from Boston Logan Intl Airport to Ko Samui Airport?

The number of operators available for flights from Boston Logan Intl Airport to Ko Samui Airport is 1 as of May 2026.

How old do you have to be to fly from Boston Logan Intl Airport to Ko Samui Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Ko Samui Airport.

What documentation or ID do you need to fly to Ko Samui Airport?

The travel and health documents you'll need for your trip to Ko Samui 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 Ko Samui Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$753 Cheap Flights from Boston to Ko Samui in 2026

1 adult

0 bags

Find the cheapest flights from Boston to Ko Samui

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:25 pm - 8:35 am

BOS

USM

29h 10m

2 stops

8:50 pm - 2:40 pm

USM

BOS

28h 50m

2 stops

$1,279Etihad Airways

Thu, Sep 17 - Mon, Sep 21

10:00 pm - 4:55 pm

BOS

USM

31h 55m

2 stops

5:55 pm - 3:15 pm

USM

BOS

32h 20m

2 stops

$1,511Qatar Airways

Sun, Jun 28 - Wed, Jul 1

10:00 pm - 10:30 am

BOS

USM

25h 30m

2 stops

2:30 pm - 3:15 pm

USM

BOS

35h 45m

2 stops

$1,554Multiple Airlines

Sun, Jun 28 - Wed, Jul 1

4:25 pm - 7:10 am

BOS

USM

27h 45m

2 stops

6:00 am - 2:40 pm

USM

BOS

43h 40m

2 stops

$1,573Etihad Airways

Mon, Jun 8 - Sat, Jul 11

5:45 pm - 10:45 am

BOS

USM

30h 00m

3 stops

7:10 pm - 3:15 pm

USM

BOS

31h 05m

2 stops

$1,658Multiple Airlines

Mon, Jun 8 - Sat, Jul 11

1:45 am - 7:40 pm

BOS

USM

30h 55m

1 stop

11:55 am - 11:05 pm

USM

BOS

22h 10m

1 stop

$1,745Cathay Pacific

Wed, Sep 16 - Mon, Sep 21

11:05 pm - 4:55 pm

BOS

USM

30h 50m

2 stops

8:00 am - 2:10 pm

USM

BOS

41h 10m

2 stops

$2,134Emirates

Wed, Jun 17 - Wed, Jun 24

1:45 am - 12:45 pm

BOS

USM

24h 00m

2 stops

11:55 am - 11:05 pm

USM

BOS

22h 10m

1 stop

$2,574Multiple Airlines

Sun, Jun 7 - Sat, Jul 11

1:45 am - 7:40 pm

BOS

USM

30h 55m

1 stop

9:15 am - 11:05 pm

USM

BOS

24h 50m

2 stops

$3,274Multiple Airlines

Sat, Jun 27 - Wed, Jul 1

2:15 pm - 5:45 pm

BOS

USM

40h 30m

3 stops

8:35 pm - 7:14 pm

USM

BOS

33h 39m

3 stops

$3,280Austrian Airlines

Mon, Jun 8 - Sat, Jul 11

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Etihad Airways flights from Boston to Ko Samui

Our best Etihad Airways deals on Boston to Ko Samui flight tickets

Etihad Airways

Sep 17

BOS4:25 pmBoston Logan Intl

29h 10m

2 stops

USM8:35 amKo Samui

Sep 21

USM8:50 pmKo Samui

28h 50m

2 stops

BOS2:40 pmBoston Logan Intl

$1,279

Etihad Airways

May 9

BOS4:25 pmBoston Logan Intl

31h 05m

2 stops

USM10:30 amKo Samui

May 22

USM5:55 pmKo Samui

31h 45m

2 stops

BOS2:40 pmBoston Logan Intl

$1,380

Etihad Airways

May 9

BOS4:25 pmBoston Logan Intl

31h 05m

2 stops

USM10:30 amKo Samui

May 22

USM7:00 pmKo Samui

30h 40m

2 stops

BOS2:40 pmBoston Logan Intl

$1,391

Austrian Airlines flights from Boston to Ko Samui

Our best Austrian Airlines deals on Boston to Ko Samui flight tickets

Austrian Airlines

Jun 8

BOS2:15 pmBoston Logan Intl

40h 30m

3 stops

USM5:45 pmKo Samui

Jul 11

USM8:35 pmKo Samui

33h 39m

3 stops

BOS7:14 pmBoston Logan Intl

$3,280

Austrian Airlines

May 27

BOS2:15 pmBoston Logan Intl

40h 30m

3 stops

USM5:45 pmKo Samui

Aug 19

USM8:35 pmKo Samui

33h 41m

3 stops

BOS7:16 pmBoston Logan Intl

$13,619

Austrian Airlines

Oct 9

BOS2:21 pmBoston Logan Intl

41h 09m

3 stops

USM6:30 pmKo Samui

Oct 18

USM8:35 pmKo Samui

33h 31m

3 stops

BOS7:06 pmBoston Logan Intl

$16,307

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Thu 9/17

4:25 pm-8:35 am

2 stops29h 10m

Ko Samui

Mon 9/21

8:50 pm-2:40 pm

2 stops28h 50m

$1,279

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sun 6/28

10:00 pm-4:55 pm

2 stops31h 55m

Ko Samui

Wed 7/1

5:55 pm-3:15 pm

2 stops32h 20m

$1,511

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sun 6/28

10:00 pm-10:30 am

2 stops25h 30m

Ko Samui

Wed 7/1

2:30 pm-3:15 pm

2 stops35h 45m

$1,554

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 6/8

4:25 pm-7:10 am

2 stops27h 45m

Ko Samui

Sat 7/11

6:00 am-2:40 pm

2 stops43h 40m

$1,573

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 6/8

5:45 pm-10:45 am

3 stops30h 00m

Ko Samui

Sat 7/11

7:10 pm-3:15 pm

2 stops31h 05m

$1,658

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Wed 9/16

1:45 am-7:40 pm

1 stop30h 55m

Ko Samui

Mon 9/21

11:55 am-11:05 pm

1 stop22h 10m

$1,745

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Wed 6/17

11:05 pm-4:55 pm

2 stops30h 50m

Ko Samui

Wed 6/24

8:00 am-2:10 pm

2 stops41h 10m

$2,134

Quickest round-trip

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sun 6/7

1:45 am-12:45 pm

2 stops24h 00m

Ko Samui

Sat 7/11

11:55 am-11:05 pm

1 stop22h 10m

$2,574

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sat 6/27

1:45 am-7:40 pm

1 stop30h 55m

Ko Samui

Wed 7/1

9:15 am-11:05 pm

2 stops24h 50m

$3,274

BostonKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 6/8

2:15 pm-5:45 pm

3 stops40h 30m

Ko Samui

Sat 7/11

8:35 pm-7:14 pm

3 stops33h 39m

$3,280

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Boston to Ko Samui

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

Prices

Airlines

Delays

Can stopping save me money on Boston to Ko Samui flights?

You could potentially save up to 62% on your flight if you consider stops on a Boston to Ko Samui flight.

When to book flights from Boston to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Ko Samui (BOS to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Ko Samui

Fastest flight time	25h 30m
Direct flights	None

The fastest flight from Boston to Ko Samui takes 25h 30m

There are no direct flights from Boston to Ko Samui. There are no popular flight routes from Boston to Ko Samui.

Search flight deals

Frequently asked questions about flying from Boston to Ko Samui

How far is Boston Logan Intl to Ko Samui by plane?
The distance between Boston Logan Intl and Ko Samui is about 8802.1 mi. By plane, this route typically takes 25h 30m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Ko Samui Airport?
Prices for flights from Boston Logan Intl Airport to Ko Samui Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Ko Samui Airport?
The number of operators available for flights from Boston Logan Intl Airport to Ko Samui Airport is 1 as of May 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Ko Samui Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Ko Samui Airport.
What documentation or ID do you need to fly to Ko Samui Airport?
The travel and health documents you'll need for your trip to Ko Samui 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 Ko Samui 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 Boston to Ko Samui?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Boston to Ko Samui is Qatar Airways (100% of total bookings).

Best airlines flying from Boston to Ko Samui

Compare and see reviews for airlines that fly from Boston to Ko Samui with momondo

Airline	Rating	Free Cancellation	Price
Qatar Airways	PriceFrom $1,813	Free Cancellation	Rating 7.4 3,723 reviews		Search Qatar Airways flights

Ko Pha Ngan

Ko Tao

Khanom

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Ko Samui?

Finding the right flight to Ko Samui from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ko Samui quick and easy, saving you time and money.

Can I find flights from Boston to Ko Samui with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Ko Samui flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Ko Samui?

momondo provides multiple filters to help you find the best flight to Ko Samui from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Ko Samui right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ko Samui from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ko Samui 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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 6/3

Wed 6/10

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand

Nearby airports

Airlines

Cabin classes

Other Thailand destinations

Other flights from Boston

Complete your trip

Feeling lucky

Cheap flights from Boston to Ko Samui from $1,279

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Ko Samui departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Boston to Ko Samui

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Etihad Airways flights from Boston to Ko Samui

Our best Etihad Airways deals on Boston to Ko Samui flight tickets

Austrian Airlines flights from Boston to Ko Samui

Our best Austrian Airlines deals on Boston to Ko Samui flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Boston to Ko Samui that are best for you.

See travel insights to Ko Samui from

How to get the cheapest flight ticket from Boston to Ko Samui

Can stopping save me money on Boston to Ko Samui flights?

What is the cheapest airline that flies from Boston Logan Intl to Ko Samui?

How often are flights from Boston to Ko Samui delayed?

What is the most punctual flight time for Boston to Ko Samui flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Boston to Ko Samui flights?

When to book flights from Boston to Ko Samui

Cheap Boston to Ko Samui (BOS to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Ko Samui

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Ko Samui

Best airlines flying from Boston to Ko Samui

Compare and see reviews for airlines that fly from Boston to Ko Samui with momondo

Traveling to a place near Ko Samui?

Why use momondo?

An easier way to manage your Ko Samui 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Airports servicing Thailand

Fly your favorite airline to Ko Samui

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ko Samui

List of cabin classes available on flights landing in Ko Samui. Availability may vary depending on flight origin and airline.

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Boston

According to popular flight searches on momondo this year

Complete your trip to Ko Samui

Explore popular destinations other users love

According to popular flight searches on momondo this year