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Cheap flights from Boston (BOS) to Koh Samui (USM) from $1,811

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BOS — USM
Jun 16 — Jun 231
From?
To?
Sun 6/16
Sun 6/23
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 June 11, 2024.

Round-trip from

$1,173
From Boston Logan Intl to Ko Samui
Search Deals

What is the cheapest day to fly round-trip from Boston to Koh Samui?

Monday 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.

What is the cheapest time of day to fly from BOS to USM?

A simple way to save on the total cost of your ticket is to fly from Boston to Koh Samui at noon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight in the morning.

Cheap Boston to Koh Samui flights in June & July 2024

Find cheap flight options from Boston to Koh Samui specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 11, 2024.
Listed are some of the best fares we've found on flights departing from Boston to Koh Samui in 2024. Check back regularly for other flight deals.
Thu 6/2010:00 pmBOS - USM
2 stops57h 35mMultiple Airlines
Sun 7/219:30 pmUSM - BOS
2 stops28h 20mMultiple Airlines
Deal found 6/11$1,833
Tue 7/210:00 pmBOS - USM
2 stops33h 30mMultiple Airlines
Sun 7/284:25 pmUSM - BOS
2 stops27h 30mMultiple Airlines
Deal found 6/11$2,069
Tue 7/26:30 amBOS - USM
3 stops39h 05mMultiple Airlines
Sun 7/289:10 pmUSM - BOS
2 stops33h 45mMultiple Airlines
Deal found 6/11$2,138
Thu 6/206:44 amBOS - USM
3 stops39h 36mQatar Airways
Sun 7/217:15 pmUSM - BOS
2 stops30h 35mQatar Airways
Deal found 6/11$2,164
Tue 7/212:17 pmBOS - USM
2 stops43h 18mCathay Pacific
Sun 7/2810:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/11$2,329
Mon 7/11:45 amBOS - USM
1 stop29h 50mCathay Pacific
Sun 7/2810:55 amUSM - BOS
2 stops34h 25mCathay Pacific
Deal found 6/11$2,376
Mon 7/11:45 amBOS - USM
2 stops32h 15mMultiple Airlines
Sun 7/285:55 pmUSM - BOS
2 stops26h 00mMultiple Airlines
Deal found 6/11$3,177
Thu 6/2010:23 amBOS - USM
2 stops45h 12mCathay Pacific
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/11$3,501
Thu 6/2011:30 amBOS - USM
3 stops43h 50mSingapore Airlines
Sun 7/211:30 pmUSM - BOS
3 stops42h 01mSingapore Airlines
Deal found 6/11$4,212

Boston to Koh Samui 2024 flight deals

Discover exclusive flight deals for travel between Boston and Koh Samui in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 11, 2024.
Listed are some of the best fares we've found on flights departing from Boston to Koh Samui in 2024. Check back regularly for other flight deals.
Thu 6/2010:00 pmBOS - USM
2 stops57h 35mMultiple Airlines
Sun 7/219:30 pmUSM - BOS
2 stops28h 20mMultiple Airlines
Deal found 6/11$1,833
Mon 8/59:50 pmBOS - USM
2 stops36h 25mTurkish Airlines
Mon 8/121:30 pmUSM - BOS
2 stops41h 25mTurkish Airlines
Deal found 6/11$1,977
Tue 8/610:00 pmBOS - USM
2 stops24h 20mMultiple Airlines
Sun 8/119:10 pmUSM - BOS
2 stops28h 40mMultiple Airlines
Deal found 6/11$2,042
Tue 7/210:00 pmBOS - USM
2 stops33h 30mMultiple Airlines
Sun 7/284:25 pmUSM - BOS
2 stops27h 30mMultiple Airlines
Deal found 6/11$2,069
Tue 7/26:30 amBOS - USM
3 stops39h 05mMultiple Airlines
Sun 7/289:10 pmUSM - BOS
2 stops33h 45mMultiple Airlines
Deal found 6/11$2,138
Thu 6/206:44 amBOS - USM
3 stops39h 36mQatar Airways
Sun 7/217:15 pmUSM - BOS
2 stops30h 35mQatar Airways
Deal found 6/11$2,164
Tue 7/212:17 pmBOS - USM
2 stops43h 18mCathay Pacific
Sun 7/2810:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/11$2,329
Mon 7/11:45 amBOS - USM
1 stop29h 50mCathay Pacific
Sun 7/2810:55 amUSM - BOS
2 stops34h 25mCathay Pacific
Deal found 6/11$2,376
Mon 8/510:22 amBOS - USM
2 stops45h 13mCathay Pacific
Mon 8/1210:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/11$2,773

Boston to Koh Samui flights leaving soon

Find last-minute flight options from Boston to Koh Samui for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 11, 2024.
Check out these flights departing soon from Boston to Koh Samui. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 6/2010:00 pmBOS - USM
2 stops57h 35mMultiple Airlines
Sun 7/219:30 pmUSM - BOS
2 stops28h 20mMultiple Airlines
Deal found 6/11$1,833
Thu 6/2010:00 pmBOS - USM
2 stops57h 35mMultiple Airlines
Sun 7/219:30 pmUSM - BOS
2 stops28h 20mMultiple Airlines
Deal found 6/10$1,912
Thu 6/206:44 amBOS - USM
3 stops39h 36mQatar Airways
Sun 7/217:15 pmUSM - BOS
2 stops30h 35mQatar Airways
Deal found 6/11$2,164
Thu 6/207:19 amBOS - USM
3 stops37h 56mQatar Airways
Sun 7/219:15 pmUSM - BOS
2 stops28h 35mQatar Airways
Deal found 6/10$2,328
Thu 6/205:47 pmBOS - USM
2 stops37h 48mCathay Pacific
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/10$3,439
Thu 6/2010:23 amBOS - USM
2 stops45h 12mCathay Pacific
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 6/11$3,501
Thu 6/2011:30 amBOS - USM
3 stops43h 50mSingapore Airlines
Sun 7/211:30 pmUSM - BOS
3 stops42h 01mSingapore Airlines
Deal found 6/11$4,212
Thu 6/2011:30 amBOS - USM
3 stops43h 50mSingapore Airlines
Sun 7/214:25 pmUSM - BOS
3 stops41h 58mSingapore Airlines
Deal found 6/10$4,223
Wed 6/191:45 amBOS - USM
2 stops24h 00mMultiple Airlines
Sun 7/2110:55 amUSM - BOS
2 stops34h 25mMultiple Airlines
Deal found 6/10$4,803

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 3,117,830 searches. Data last updated June 11, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,811 - $3,617

Route

Depart

Return

Price

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 8/5

2 stops33h 30m

Ko Samui

Mon 8/12

2 stops41h 25m

$1,811

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Fri 6/28

2 stops34h 40m

Ko Samui

Mon 7/1

2 stops30h 35m

$1,918

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 8/6

2 stops25h 10m

Ko Samui

Sun 8/11

2 stops28h 40m

$2,043

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 7/2

2 stops33h 30m

Ko Samui

Sun 7/28

2 stops27h 30m

$2,069

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 7/2

3 stops39h 05m

Ko Samui

Sun 7/28

2 stops33h 45m

$2,138

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 7/2

2 stops43h 18m

Ko Samui

Sun 7/28

1 stop22h 25m

$2,329

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 7/1

1 stop29h 50m

Ko Samui

Sun 7/28

2 stops34h 25m

$2,376

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 8/5

3 stops35h 03m

Ko Samui

Mon 8/12

2 stops28h 40m

$2,377

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 8/5

3 stops40h 41m

Ko Samui

Mon 8/12

3 stops42h 01m

$3,617

Flights are sorted by cheapest first

Deals found on 6/10

What is the cheapest day to fly from Boston to Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Boston to Koh Samui. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boston to Koh Samui flight should consider departing on Tuesday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Koh Samui by month

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

USM

Temperature

80.6 - 84.2 °F

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 June 11, 2024.
To help decide which airline to fly from Boston to Koh Samui, see what other customers have to say about Qatar Airways, Singapore Airlines and Cathay Pacific. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.3
Very good
1,418 reviews

Boarding

8.4

Entertainment

8.2

Overall

8.3

Crew

8.7

Food

7.8

Comfort

8.1

Reviews

1 / 10

I recently flew to Singapore on flight 21 April 28, 2024. From the time I was greeted at the aircraft door your cabin crew was warm welcoming, smiling and dressed sharped in their uniforms. I've flown around the world and this was my first time on singapore airline. Jason was very attentive to all of my needs. Kelly did made sure my food was correct and it was served at perfect temperature. Mohan check made sure i stayed hydrated they did a beautiful dinner service and lunch service. Everytime I went to the bathroom Ploy had my favorite drink ready. Even though I was in premium economy they gave us first class treatment. I truly enjoyed everything from start to finish on my flight. Even though this is the longest flight in the world I was thankful for the comfort your crew provided me in this journey. Having this amazing crew will surely bring me back on your airline for my vacation travel to Asia. Please give them a special thanks from me. These are memories I will cherish.

Singapore Airlines
8.3
Very good
1,418 reviews
Singapore Airlines
8.3
Very good
1,418 reviews

Boarding

8.4

Entertainment

8.2

Overall

8.3

Crew

8.7

Food

7.8

Comfort

8.1

Reviews

1 / 10

I recently flew to Singapore on flight 21 April 28, 2024. From the time I was greeted at the aircraft door your cabin crew was warm welcoming, smiling and dressed sharped in their uniforms. I've flown around the world and this was my first time on singapore airline. Jason was very attentive to all of my needs. Kelly did made sure my food was correct and it was served at perfect temperature. Mohan check made sure i stayed hydrated they did a beautiful dinner service and lunch service. Everytime I went to the bathroom Ploy had my favorite drink ready. Even though I was in premium economy they gave us first class treatment. I truly enjoyed everything from start to finish on my flight. Even though this is the longest flight in the world I was thankful for the comfort your crew provided me in this journey. Having this amazing crew will surely bring me back on your airline for my vacation travel to Asia. Please give them a special thanks from me. These are memories I will cherish.

Cathay Pacific
7.8
Good
1,026 reviews
Singapore Airlines
8.3
Very good
1,418 reviews

Boarding

8.4

Entertainment

8.2

Overall

8.3

Crew

8.7

Food

7.8

Comfort

8.1

Reviews

1 / 10

I recently flew to Singapore on flight 21 April 28, 2024. From the time I was greeted at the aircraft door your cabin crew was warm welcoming, smiling and dressed sharped in their uniforms. I've flown around the world and this was my first time on singapore airline. Jason was very attentive to all of my needs. Kelly did made sure my food was correct and it was served at perfect temperature. Mohan check made sure i stayed hydrated they did a beautiful dinner service and lunch service. Everytime I went to the bathroom Ploy had my favorite drink ready. Even though I was in premium economy they gave us first class treatment. I truly enjoyed everything from start to finish on my flight. Even though this is the longest flight in the world I was thankful for the comfort your crew provided me in this journey. Having this amazing crew will surely bring me back on your airline for my vacation travel to Asia. Please give them a special thanks from me. These are memories I will cherish.

Qatar Airways
7.7
Good
4,301 reviews
Singapore Airlines
8.3
Very good
1,418 reviews

Boarding

8.4

Entertainment

8.2

Overall

8.3

Crew

8.7

Food

7.8

Comfort

8.1

Reviews

1 / 10

I recently flew to Singapore on flight 21 April 28, 2024. From the time I was greeted at the aircraft door your cabin crew was warm welcoming, smiling and dressed sharped in their uniforms. I've flown around the world and this was my first time on singapore airline. Jason was very attentive to all of my needs. Kelly did made sure my food was correct and it was served at perfect temperature. Mohan check made sure i stayed hydrated they did a beautiful dinner service and lunch service. Everytime I went to the bathroom Ploy had my favorite drink ready. Even though I was in premium economy they gave us first class treatment. I truly enjoyed everything from start to finish on my flight. Even though this is the longest flight in the world I was thankful for the comfort your crew provided me in this journey. Having this amazing crew will surely bring me back on your airline for my vacation travel to Asia. Please give them a special thanks from me. These are memories I will cherish.

Turkish Airlines
7.4
Good
3,714 reviews
Singapore Airlines
8.3
Very good
1,418 reviews

Boarding

8.4

Entertainment

8.2

Overall

8.3

Crew

8.7

Food

7.8

Comfort

8.1

Reviews

1 / 10

I recently flew to Singapore on flight 21 April 28, 2024. From the time I was greeted at the aircraft door your cabin crew was warm welcoming, smiling and dressed sharped in their uniforms. I've flown around the world and this was my first time on singapore airline. Jason was very attentive to all of my needs. Kelly did made sure my food was correct and it was served at perfect temperature. Mohan check made sure i stayed hydrated they did a beautiful dinner service and lunch service. Everytime I went to the bathroom Ploy had my favorite drink ready. Even though I was in premium economy they gave us first class treatment. I truly enjoyed everything from start to finish on my flight. Even though this is the longest flight in the world I was thankful for the comfort your crew provided me in this journey. Having this amazing crew will surely bring me back on your airline for my vacation travel to Asia. Please give them a special thanks from me. These are memories I will cherish.

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 flights from Boston to Koh Samui for under $1,900 on Cheapflights?

    Yes, there are multiple flights from Boston to Koh Samui for under $1,900. The cheapest flight booked recently is on Turkish Airlines for just $1,811, but on average you can expect to pay $2,608.

  • Are there last-minute flights available from Boston to Koh Samui for under $1,900?

    There are currently 13+ open flights from Boston to Koh Samui within the next 7 days for less than $1,900.

  • What are the cheapest airlines flying from Boston to Koh Samui round-trip?

    Cheapflights users have booked flights from Boston to Koh Samui round-trip from $1,811. Other airlines that can offer you cheap pricing are Qatar Airways, from $1,918, and Cathay Pacific, from $2,329.

  • What does BOS to USM mean?

    BOS stands for Boston Logan Intl Airport, while USM stands for Ko Samui Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Boston to Koh Samui that include extra baggage allowance?

    The amount of baggage you can bring on your Boston to Koh Samui flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Boston to Koh Samui with specific airlines?

    Yes, Cheapflights allows you to browse and filter Boston to Koh Samui flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Boston to Koh Samui that allow pets onboard?

    Many airlines flying from Boston to Koh Samui offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Boston to Koh Samui?

    Yes, you can often find last-minute deals on Boston to Koh Samui flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Boston to Koh Samui flight deals updated?

    The Boston to Koh Samui flight deals you see on this page were last updated on 6/11.

See more FAQs

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Top 2 airlines flying from Boston to Koh Samui

Discover the top 2 airlines that operate flights from Boston to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 11, 2024.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$968Average$1,043FlexibilityNo cancel feeOn-time79%
Qatar AirwaysCheapest$1,392Average$1,569FlexibilityNo cancel feeOn-time68%
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Search flights from Boston to Koh Samui by cabin class

Find flights from Boston to Koh Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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