BOS - USM

$866 Find Cheap Flights from Boston to Ko Samui

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Ko Samui departing on 2/14. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Ko Samui, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Ko Samui, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,045
Multiple Airlines
Sat 5/9Fri 5/22
BOS - USM • 2 stops
Cheapest one-way
$866
Multiple Airlines
Sat 2/14
BOS - USM • 3 stops
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue offers free gate-to-gate Wi-Fi and live TV.
Cape Air provides scenic views from large windows.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Etihad Airways
Cheapest • from $1,061 (round-trip)
Qatar Airways
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
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Flight Deals

Cheap Flights from Boston to Ko Samui (BOS-USM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Ko Samui

Sat, May 9 - Fri, May 22
Multiple Airlines Logo
4:25 pm - 11:55 am
BOS
-
USM
32h 30m
2 stops
Multiple Airlines Logo
8:50 pm - 2:40 pm
USM
-
BOS
28h 50m
2 stops
$1,045Multiple Airlines
Sat, May 9 - Fri, May 22
Multiple Airlines Logo
4:25 pm - 11:55 am
BOS
-
USM
32h 30m
2 stops
Multiple Airlines Logo
8:35 pm - 2:40 pm
USM
-
BOS
29h 05m
2 stops
$1,046Multiple Airlines
Fri, May 8 - Sun, May 31
Etihad Airways Logo
4:25 pm - 8:15 am
BOS
-
USM
28h 50m
2 stops
Etihad Airways Logo
8:35 pm - 2:40 pm
USM
-
BOS
53h 05m
2 stops
$1,061Etihad Airways
Fri, May 8 - Sun, May 31
Multiple Airlines Logo
4:25 pm - 8:15 am
BOS
-
USM
28h 50m
2 stops
Multiple Airlines Logo
7:10 pm - 2:40 pm
USM
-
BOS
30h 30m
2 stops
$1,083Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Etihad Airways Logo
3:40 pm - 7:10 am
BOS
-
USM
27h 30m
2 stops
Etihad Airways Logo
8:50 am - 3:10 pm
USM
-
BOS
65h 20m
2 stops
$1,112Etihad Airways
Mon, Mar 2 - Mon, Mar 9
Etihad Airways Logo
3:40 pm - 7:45 am
BOS
-
USM
28h 05m
2 stops
Etihad Airways Logo
8:50 am - 3:10 pm
USM
-
BOS
65h 20m
2 stops
$1,162Etihad Airways
Wed, Apr 8 - Wed, Apr 15
Turkish Airlines Logo
9:50 pm - 6:15 pm
BOS
-
USM
33h 25m
2 stops
Turkish Airlines Logo
1:30 pm - 7:55 pm
USM
-
BOS
41h 25m
2 stops
$1,176Turkish Airlines
Wed, Apr 8 - Wed, Apr 15
Turkish Airlines Logo
9:50 pm - 6:15 pm
BOS
-
USM
33h 25m
2 stops
Turkish Airlines Logo
1:30 pm - 7:55 pm
USM
-
BOS
41h 25m
2 stops
$1,177Turkish Airlines
Wed, Apr 8 - Wed, Apr 15
Turkish Airlines Logo
9:50 pm - 6:15 pm
BOS
-
USM
57h 25m
2 stops
Turkish Airlines Logo
1:30 pm - 7:55 pm
USM
-
BOS
41h 25m
2 stops
$1,220Turkish Airlines
Tue, Feb 24 - Tue, Mar 3
Etihad Airways Logo
3:40 pm - 7:30 am
BOS
-
USM
27h 50m
2 stops
Etihad Airways Logo
8:15 am - 2:10 pm
USM
-
BOS
41h 55m
2 stops
$1,269Etihad Airways
Booking Insights

KAYAK's insights & trends for Boston to Ko Samui flights

Get data-powered insights and trends into flights from Boston to Ko Samui to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to Ko Samui?

The average price of all round-trip flights from Boston to Ko Samui clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ko Samui on a Friday and more expensive on a Sunday. On your return trip to Boston, you should consider flying back on a Friday, and avoid Tuesdays for better deals.

Expert advice

Expert advice for your flight from Boston to Ko Samui

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Chris Dong

Chris Dong

Expert on Cape Air

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Cheapest flight$866
Flight from Boston to Ko Samui

When to book flights from Boston to Ko Samui

Are your dates flexible? Find out the best times to travel from Boston to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Ko Samui

  • What is the cheapest flight from Boston to Ko Samui?

    In the last 3 days, the lowest price for a flight from Boston to Ko Samui was $866 for a one-way ticket and $1,045 for a round-trip.

  • Do I need a passport to fly between Boston and Ko Samui?

    A passport is required to fly from Boston to Ko Samui.

  • Which airports will I be using when flying from Boston to Ko Samui?

    Boston and Ko Samui are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at Ko Samui.

  • Which aircraft models fly most regularly from Boston to Ko Samui?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Ko Samui?

    oneworld is the only airline alliance operating flights between Boston and Ko Samui.

  • How does KAYAK find such low prices on flights from Boston to Ko Samui?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Ko Samui.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Ko Samui?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Ko Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Boston with another airline. Booking your flights between Boston and USM can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Ko Samui?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Ko Samui

 
See real verified KAYAK customer reviews for airlines flying from Boston to Ko Samui. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Ko Samui? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3727 reviews
7.5Boarding
7.9Crew
7.3Food
7.4Entertainment
7.4Comfort
Airline reviews

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

6.0 GoodAnonymous, Jan 2026
BOS - PHL
Read more Qatar Airways reviews

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

This flight was a very good trip for us. The crew were very friendly and helpful. They made arrangements for my husband to have assistance in boarding. We were not expecting a meal, so it was a pleasant surprise on this short flight to have a meal and beverage from a very courteous crew.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

Everything you need to know for your flight from Boston to Ko Samui

Information on your arrival and departure airports