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Cheap flights from Boston (BOS) to Koh Samui (USM) from $1,551

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 9/15. 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
May 28 — Jun 41
From?
To?
Tue 5/28
Tue 6/4
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 May 23, 2024.

Round-trip from

$1,045
From Boston Logan Intl to Ko Samui
Search Deals

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

Tuesday 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 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 Cathay Pacific flights from Boston to Koh Samui

Explore cheap flight options specifically provided by Cathay Pacific for the route between Boston and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 23, 2024.
Consider these cheap Cathay Pacific flights we've found departing from Boston to Koh Samui. Make sure to check back often as deals are often changing.
Sat 9/141:45 amBOS - USM
1 stop29h 50mCathay Pacific
Mon 9/3010:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/23$1,590
Sun 9/1511:20 amBOS - USM
2 stops44h 15mCathay Pacific
Mon 9/3010:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/23$1,638
Sat 9/141:45 amBOS - USM
1 stop29h 50mCathay Pacific
Mon 9/3010:55 amUSM - BOS
2 stops45h 40mCathay Pacific
Deal found 5/23$1,643
Mon 8/55:45 pmBOS - USM
2 stops37h 50mCathay Pacific
Mon 8/1210:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$2,963
Tue 8/65:45 pmBOS - USM
2 stops37h 50mCathay Pacific
Sun 8/1110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$2,997
Thu 6/2010:23 amBOS - USM
2 stops45h 12mCathay Pacific
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$3,060
Mon 8/51:45 amBOS - USM
1 stop29h 50mCathay Pacific
Sun 8/1110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$3,507
Sun 8/41:45 amBOS - USM
1 stop29h 50mCathay Pacific
Mon 8/1210:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$3,540
Wed 6/191:45 amBOS - USM
2 stops32h 15mCathay Pacific
Sun 7/2110:55 amUSM - BOS
2 stops34h 25mCathay Pacific
Deal found 5/22$5,263

Cheap Singapore Airlines flights from Boston to Koh Samui

Explore cheap flight options specifically provided by Singapore Airlines for the route between Boston and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 23, 2024.
Some of the best deals we've found on Singapore Airlines flights traveling from Boston to Koh Samui. Make sure to examine the flight information before completing your reservation.
Tue 8/62:39 pmBOS - USM
3 stops43h 36mSingapore Airlines
Sun 8/111:30 pmUSM - BOS
3 stops44h 52mSingapore Airlines
Deal found 5/22$3,367
Mon 8/511:30 amBOS - USM
3 stops43h 50mSingapore Airlines
Mon 8/121:30 pmUSM - BOS
3 stops42h 01mSingapore Airlines
Deal found 5/22$3,751
Mon 8/58:40 amBOS - USM
2 stops46h 40mSingapore Airlines
Mon 8/121:30 pmUSM - BOS
3 stops42h 01mSingapore Airlines
Deal found 5/22$3,767
Thu 6/2011:30 amBOS - USM
2 stops43h 50mSingapore Airlines
Sun 7/214:25 pmUSM - BOS
3 stops39h 06mSingapore Airlines
Deal found 5/23$4,200
Thu 6/204:30 pmBOS - USM
3 stops62h 50mSingapore Airlines
Sun 7/214:25 pmUSM - BOS
3 stops39h 06mSingapore Airlines
Deal found 5/22$4,551

Cheap Boston to Koh Samui flights in May & June 2024

Find cheap flight options from Boston to Koh Samui specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on May 23, 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 6/209:50 pmBOS - USM
2 stops24h 30mMultiple Airlines
Sun 7/217:30 pmUSM - BOS
2 stops35h 25mMultiple Airlines
Deal found 5/23$1,677
Thu 6/209:50 pmBOS - USM
2 stops30h 20mMultiple Airlines
Sun 7/219:15 pmUSM - BOS
2 stops33h 40mMultiple Airlines
Deal found 5/22$1,898
Thu 6/205:47 pmBOS - USM
2 stops37h 48mMultiple Airlines
Sun 7/218:00 amUSM - BOS
3 stops27h 16mMultiple Airlines
Deal found 5/22$3,034
Thu 6/2010:23 amBOS - USM
2 stops45h 12mCathay Pacific
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/22$3,060
Wed 6/191:45 amBOS - USM
2 stops25h 00mMultiple Airlines
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mMultiple Airlines
Deal found 5/23$3,278
Wed 6/191:45 amBOS - USM
2 stops27h 00mMultiple Airlines
Sun 7/218:00 amUSM - BOS
2 stops25h 20mMultiple Airlines
Deal found 5/23$3,384
Thu 6/2011:30 amBOS - USM
2 stops43h 50mSingapore Airlines
Sun 7/214:25 pmUSM - BOS
3 stops39h 06mSingapore Airlines
Deal found 5/23$4,200
Thu 6/204:30 pmBOS - USM
3 stops62h 50mSingapore Airlines
Sun 7/214:25 pmUSM - BOS
3 stops39h 06mSingapore Airlines
Deal found 5/22$4,551
Wed 6/191:45 amBOS - USM
2 stops25h 00mMultiple Airlines
Sun 7/2110:55 amUSM - BOS
1 stop22h 25mMultiple Airlines
Deal found 5/22$4,972

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 2,730,072 searches. Data last updated May 23, 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.
Sun 9/1510:00 pmBOS - USM
2 stops24h 20mQatar Airways
Mon 9/309:15 pmUSM - BOS
2 stops28h 35mQatar Airways
Deal found 5/23$1,551
Sat 9/141:45 amBOS - USM
1 stop29h 50mCathay Pacific
Mon 9/3010:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/23$1,590
Sun 9/1511:20 amBOS - USM
2 stops44h 15mCathay Pacific
Mon 9/3010:55 amUSM - BOS
1 stop22h 25mCathay Pacific
Deal found 5/23$1,638
Sat 9/141:45 amBOS - USM
1 stop29h 50mCathay Pacific
Mon 9/3010:55 amUSM - BOS
2 stops45h 40mCathay Pacific
Deal found 5/23$1,643
Thu 6/209:50 pmBOS - USM
2 stops24h 30mMultiple Airlines
Sun 7/217:30 pmUSM - BOS
2 stops35h 25mMultiple Airlines
Deal found 5/23$1,677
Mon 8/59:50 pmBOS - USM
2 stops33h 10mMultiple Airlines
Mon 8/127:30 pmUSM - BOS
2 stops35h 25mMultiple Airlines
Deal found 5/22$1,715
Tue 8/69:50 pmBOS - USM
2 stops36h 25mMultiple Airlines
Sun 8/117:30 pmUSM - BOS
2 stops35h 25mMultiple Airlines
Deal found 5/22$1,719
Thu 6/209:50 pmBOS - USM
2 stops30h 20mMultiple Airlines
Sun 7/219:15 pmUSM - BOS
2 stops33h 40mMultiple Airlines
Deal found 5/22$1,898
Tue 8/610:00 pmBOS - USM
2 stops25h 10mMultiple Airlines
Sun 8/118:00 amUSM - BOS
3 stops27h 21mMultiple Airlines
Deal found 5/22$2,935

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 2,730,072 searches. Data last updated May 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,551 - $3,367

Route

Depart

Return

Price

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sun 9/15

2 stops24h 20m

Ko Samui

Mon 9/30

2 stops28h 35m

$1,551

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sat 9/14

1 stop29h 50m

Ko Samui

Mon 9/30

1 stop22h 25m

$1,590

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sun 9/15

2 stops44h 15m

Ko Samui

Mon 9/30

1 stop22h 25m

$1,638

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Sat 9/14

1 stop29h 50m

Ko Samui

Mon 9/30

2 stops45h 40m

$1,643

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Thu 6/20

2 stops24h 30m

Ko Samui

Sun 7/21

2 stops35h 25m

$1,677

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Mon 8/5

2 stops33h 10m

Ko Samui

Mon 8/12

2 stops35h 25m

$1,715

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 8/6

2 stops36h 25m

Ko Samui

Sun 8/11

2 stops35h 25m

$1,719

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Thu 6/20

2 stops30h 20m

Ko Samui

Sun 7/21

2 stops33h 40m

$1,898

Boston Logan IntlKo Samui

BOS - USM

BOSUSM

Boston Logan Intl

Tue 8/6

3 stops43h 36m

Ko Samui

Sun 8/11

3 stops44h 52m

$3,367

Flights are sorted by cheapest first

Deals found on 5/23

When is the cheapest time 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 May 19, 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

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 May 23, 2024.
To help decide which airline to fly from Boston to Koh Samui, see what other customers have to say about Cathay Pacific and Singapore Airlines. 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
8.2
Very good
1,433 reviews
Check prices

Crew

8.7

Boarding

8.4

Overall

8.2

Comfort

8.1

Food

7.8

Entertainment

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
8.2
Very good
1,433 reviews
Singapore Airlines
8.2
Very good
1,433 reviews
Check prices

Crew

8.7

Boarding

8.4

Overall

8.2

Comfort

8.1

Food

7.8

Entertainment

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
1,068 reviews
Singapore Airlines
8.2
Very good
1,433 reviews
Check prices

Crew

8.7

Boarding

8.4

Overall

8.2

Comfort

8.1

Food

7.8

Entertainment

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
4,358 reviews
Singapore Airlines
8.2
Very good
1,433 reviews
Check prices

Crew

8.7

Boarding

8.4

Overall

8.2

Comfort

8.1

Food

7.8

Entertainment

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 $1,600 on Cheapflights?

    Yes, there are multiple flights from Boston to Koh Samui for under $1,600. The cheapest flight booked recently is on Qatar Airways for just $1,551, but on average you can expect to pay $2,627.

  • 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 $1,551. Other airlines that can offer you cheap pricing are Cathay Pacific, from $1,590, and Singapore Airlines, from $3,367.

  • 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 5/23.

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 2,730,072 searches. Data last updated May 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest$968Average$1,043FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Qatar AirwaysCheapest$1,392Average$1,581FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
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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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Koh Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Koh Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Boston to Koh Samui?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Koh Samui.

Can Cheapflights find flights from Boston to Koh Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Koh Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston to Koh Samui become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Koh Samui from Boston today and book when prices fit your budget.

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