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Ko Samui

$1,534+ Cheap flights from Baltimore (BWI) to Ko 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
mar 15 — mar 221
dom 3/15
dom 3/22
1 adult, Economy
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Cheap flight deals from Baltimore to Ko Samui

Cheapest flights from Baltimore to Ko Samui
Explore the most affordable flight options available from Baltimore to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on fevereiro 13, 2026.

This KAYAK deal was found by Cheapflights users on 2/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/156:05 am
BWI
-
USM
2 stops28h 05m
Multiple Airlines
sex 4/241:30 pm
USM
-
BWI
2 stops38h 43m
Multiple Airlines
Deal found 2/12$1,534
This Gurufare deal was found by Cheapflights users on 2/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 3/126:25 pm
BWI
-
USM
2 stops33h 30m
Multiple Airlines
qui 3/1911:40 am
USM
-
BWI
2 stops30h 39m
Multiple Airlines
Deal found 2/10$1,838
This Gurufare deal was found by Cheapflights users on 2/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/306:00 pm
BWI
-
USM
2 stops36h 15m
Multiple Airlines
seg 12/74:25 pm
USM
-
BWI
2 stops37h 41m
Multiple Airlines
Deal found 2/10$1,976
This KAYAK deal was found by Cheapflights users on 2/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 3/26:46 pm
BWI
-
USM
2 stops54h 19m
Multiple Airlines
seg 3/91:25 pm
USM
-
BWI
2 stops38h 58m
Multiple Airlines
Deal found 2/9$2,696
This Gurufare deal was found by Cheapflights users on 2/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/16:00 pm
BWI
-
USM
2 stops32h 55m
Multiple Airlines
seg 11/911:40 am
USM
-
BWI
2 stops30h 12m
Multiple Airlines
Deal found 2/9$2,803
This Ovago deal was found by Cheapflights users on 2/12. 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.
dom 3/299:35 pm
BWI
-
USM
2 stops33h 40m
British Airways
dom 4/51:30 pm
USM
-
BWI
2 stops41h 10m
British Airways
Deal found 2/12$2,972
This AranGrant deal was found by Cheapflights users on 2/10. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/66:31 pm
BWI
-
USM
2 stops36h 44m
Multiple Airlines
sáb 9/1211:55 am
USM
-
BWI
2 stops30h 06m
Multiple Airlines
Deal found 2/10$3,036
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 2/178:35 pm
BWI
-
USM
2 stops33h 40m
British Airways
qui 2/261:25 pm
USM
-
BWI
2 stops41h 20m
British Airways
Deal found 2/11$3,185
This Booking.com deal was found by Cheapflights users on 2/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 3/2612:32 pm
BWI
-
USM
3 stops35h 03m
Multiple Airlines
qui 4/21:30 pm
USM
-
BWI
2 stops38h 38m
Multiple Airlines
Deal found 2/9$4,189

Find flight deals from Baltimore to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ko 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 fevereiro 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,534
(KAYAK)
Provider with most accurate pricing for Baltimore/Washington-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Ko Samui flights.
Search Deals
From Baltimore/Washington to Ko Samui
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Ko 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 fevereiro 13, 2026.
Use the filters below to find and compare flights from Baltimore to Ko Samui that are best for you.

Fly from

Baltimore

Fly to

Ko Samui

Route

Depart

Return

Price

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

qua 4/15

6:05 am-9:10 pm

2 stops28h 05m

Ko Samui

sex 4/24

1:30 pm-5:13 pm

2 stops38h 43m

$1,534

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

qui 3/12

6:25 pm-2:55 pm

2 stops33h 30m

Ko Samui

qui 3/19

11:40 am-7:19 am

2 stops30h 39m

$1,838

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

seg 3/2

6:46 pm-1:05 pm

2 stops54h 19m

Ko Samui

seg 3/9

1:25 pm-5:23 pm

2 stops38h 58m

$2,696

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

dom 3/29

9:35 pm-6:15 pm

2 stops33h 40m

Ko Samui

dom 4/5

1:30 pm-7:40 pm

2 stops41h 10m

$2,972

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

ter 2/17

8:35 pm-6:15 pm

2 stops33h 40m

Ko Samui

qui 2/26

1:25 pm-6:45 pm

2 stops41h 20m

$3,185

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

qui 3/26

12:32 pm-10:35 am

3 stops35h 03m

Ko Samui

qui 4/2

1:30 pm-5:08 pm

2 stops38h 38m

$4,189

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

sáb 4/4

9:30 pm-6:15 pm

2 stops33h 45m

Ko Samui

sáb 4/11

4:25 pm-7:45 pm

2 stops38h 20m

$5,913

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Compare providers for flights from Baltimore to Ko 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 Baltimore to Ko Samui in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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 Baltimore-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Ko 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 Baltimore-Ko 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 Baltimore to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Baltimore 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.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Ko Samui

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

Find hourly flight availability from Baltimore to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated fevereiro 13, 2026.

It’s typically best to fly out from Baltimore to Ko Samui in the evening. Doing so could potentially save you 64% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Baltimore to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Baltimore to Ko Samui flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Baltimore to Ko Samui?

    For as low as $2,972, British Airways can have you in Ko Samui from Baltimore in 33h 40m. Baltimore and Ko Samui are separated by a distance of 9057 mi.

  • Can I find deals for flights from Baltimore to Ko Samui that include hotel bookings?

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

  • How can I find direct flights from Baltimore to Ko Samui?

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

  • Can I find deals for business class flights from Baltimore to Ko Samui?

    Yes. Cheapflights offers flight deals from Baltimore to Ko 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.

See more FAQs

Traveling to a place near Ko Samui?

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

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