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Koh Samui

$1,320+ Cheap flights from Boston (BOS) to Koh Samui (USM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — USM
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Boston to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,320
(FlightHub)
Provider with most accurate pricing for Boston Logan Intl-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Ko Samui flights.
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From Boston Logan Intl to Ko Samui
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Find flight deals from Boston to Koh Samui

Cheapest flights from Boston to Koh Samui
Explore the most affordable flight options available from Boston to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/48:00 pmBOS - USM
2 stops36h 45mTurkish Airlines
Tue 3/118:20 amUSM - BOS
2 stops45h 45mTurkish Airlines
Deal found 1/20$1,320
This SmartFares deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/178:00 pmBOS - USM
2 stops34h 25mMultiple Airlines
Mon 2/244:25 pmUSM - BOS
2 stops61h 40mMultiple Airlines
Deal found 1/20$1,323
This Ovago deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:05 amBOS - USM
2 stops44h 30mCathay Pacific
Thu 3/1311:40 amUSM - BOS
1 stop22h 20mCathay Pacific
Deal found 1/19$1,820
This FlightHub deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/211:30 amBOS - USM
3 stops43h 45mSingapore Airlines
Sat 7/191:30 pmUSM - BOS
2 stops62h 36mSingapore Airlines
Deal found 1/19$2,638

Find flights from Boston to Koh Samui within your budget

Customize your flight search to find flights from Boston to Koh Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonKoh Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 3/4

8:00 pm-8:45 pm

2 stops36h 45m

Ko Samui

Tue 3/11

8:20 am-7:05 pm

2 stops45h 45m

$1,320

BostonKoh Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 2/17

8:00 pm-6:25 pm

2 stops34h 25m

Ko Samui

Mon 2/24

4:25 pm-6:05 pm

2 stops61h 40m

$1,323

BostonKoh Samui

BOS - USM

BOSUSM

Boston Logan Intl

Thu 3/6

11:05 am-7:35 pm

2 stops44h 30m

Ko Samui

Thu 3/13

11:40 am-11:00 pm

1 stop22h 20m

$1,820

BostonKoh Samui

BOS - USM

BOSUSM

Boston Logan Intl

Wed 7/2

11:30 am-6:15 pm

3 stops43h 45m

Ko Samui

Sat 7/19

1:30 pm-5:06 pm

2 stops62h 36m

$2,638

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Boston to Koh Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Koh Samui in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Koh Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Koh Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Koh Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Koh Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Koh Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Boston to Koh Samui

Get recent, data-driven insights about flights from Boston to Koh Samui including ideal travel times, pricing trends, and more.

Rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Koh Samui. Reviews last updated January 21, 2025.
Singapore Airlines
8.1
Very good
1,328 reviews

Entertainment

8.0

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Comfort

7.9

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Singapore Airlines
8.1
Very good
1,328 reviews
Singapore Airlines
8.1
Very good
1,328 reviews

Entertainment

8.0

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Comfort

7.9

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Cathay Pacific
7.5
Good
830 reviews
Singapore Airlines
8.1
Very good
1,328 reviews

Entertainment

8.0

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Comfort

7.9

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Turkish Airlines
7.3
Good
3,931 reviews
Singapore Airlines
8.1
Very good
1,328 reviews

Entertainment

8.0

Crew

8.6

Overall

8.1

Boarding

8.2

Food

7.7

Comfort

7.9

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Related info for your journey

Find useful and relevant information for your journey from Boston to Koh Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Boston to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Boston to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Koh Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Koh Samui.

  • Can I find deals for business class flights from Boston to Koh Samui?

    Yes. Cheapflights offers flight deals from Boston to Koh Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

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