Cheap flights from Boston (BOS) to Koh Samui (USM)

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How to find the cheapest flight from
Boston (BOS) to Koh Samui (USM)

All the information you need to plan the best BOS to USM flight in 2022: compare Boston to Koh Samui flight prices with the expected peak season, weather and rainfall in Koh Samui.
What is the cheapest day to fly round-trip from Boston to Koh Samui?

Wednesday flights are generally found to be more expensive for flights from Boston to Koh Samui. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Koh Samui.

When is the cheapest time to fly from Boston to Koh Samui (BOS - USM)?

A simple way to save on the total cost of your ticket is to fly from Boston to Koh Samui in the morning. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at noon.

Cheap flights from Boston to Koh Samui in July, August 2022

The best prices found for BOS to USM flights for July, August
2 Aug - 9 Aug
$1,733pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
20 Jul - 24 Jul
$2,527pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
20 Jul - 24 Jul
$2,581pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
BOS
Boston Logan Intl

Boston Logan Intl to Koh Samui 2022 flight deals

Cheap flights to Koh Samui from Boston found for this year
20 Nov - 26 Nov
$1,186pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Japan Airlines
     
3 STOPS
BOS
Boston Logan Intl
20 Nov - 26 Nov
$1,365pp
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
20 Nov - 26 Nov
$1,699pp
BOS
Boston Logan Intl
Multiple Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Multiple Airlines
     
3 STOPS
BOS
Boston Logan Intl

Cheap Japan Airlines flights from Boston to Koh Samui

20 Nov - 26 Nov
$1,186pp
BOS
Boston Logan Intl
Japan Airlines
   
2 STOPS
USM
Ko Samui
USM
Ko Samui
Japan Airlines
     
3 STOPS
BOS
Boston Logan Intl

Cheap Austrian Airlines flights from Boston to Koh Samui

2 Aug - 9 Aug
$5,934pp
BOS
Boston Logan Intl
Austrian Airlines
     
3 STOPS
USM
Ko Samui
USM
Ko Samui
Austrian Airlines
     
3 STOPS
BOS
Boston Logan Intl

One-way flights to Ko Samui from Boston

The cheapest one-way flights from Boston to Koh Samui
6:15 pm - 6:25 am
Qatar Airways
2 Stops
25h 10m
BOS - USM
Qatar Airways
$1,620
oojo
12:07 pm - 9:45 am
Cathay Pacific
3 Stops
34h 38m
BOS - USM
Cathay Pacific
$4,163
KAYAK

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Boston</span> to <span class="emphasized">Koh Samui</span> flights.

Flight FAQs

From Boston to Koh Samui

Which airlines flying from Boston Logan Intl to Ko Samui have flexible changes due to COVID-19?

Cathay Pacific is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Boston to Koh Samui for under $1,200 on Cheapflights?

Yes, there are multiple flights from Boston to Koh Samui for under $1,200. The cheapest flight booked recently is on Japan Airlines for just $1,186, but on average you can expect to pay $2,962.

What are the cheapest flights from Boston to Koh Samui?

Looking for the cheapest flight from Boston to Koh Samui? While on average our users pay $1,779, our data indicates the cheapest price to be $764. The most popular route (Boston Logan Intl - Ko Samui), is priced around $1,186.

COVID Restrictions

View COVID Travel Restrictions for Koh Samui, Thailand

Do I need a COVID test to fly to Koh Samui from Boston?

Information is based on travel restrictions from Boston Logan Intl to Ko Samui

Most visitors from Boston Logan Intl can enter Ko Samui without restrictions.

COVID-19 testing requirements
Visitors from Boston Logan Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Ko Samui.

Quarantine requirements
Visitors from Boston Logan Intl are not required to quarantine after entering Ko Samui.

Do I need a test to fly back to Boston from Koh Samui?

Returning to Boston Logan Intl from Ko Samui

COVID-19 testing requirements
Visitors from Ko Samui are not required to present a negative COVID-19 PCR test or antigen result upon entering Boston Logan Intl.

Quarantine requirements
Visitors from Ko Samui are not required to quarantine after entering Boston Logan Intl.

Hide COVID Travel Restrictions for Koh Samui, Thailand
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