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Ko Samui

$566+ Cheap flights from Baltimore (BWI) to Ko Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap 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 septiembre 11, 2025.

Round-trip from

$1,602
(Mytrip)

One-way from

$566
(Kiwi.com)
From Baltimore/Washington to Ko Samui
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One-way flight from Baltimore/Washington to Ko Samui
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Find 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 septiembre 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/2611:39 amBWI - USM
3 stops33h 21mMultiple Airlines
dom. 11/27:00 amUSM - BWI
3 stops35h 35mMultiple Airlines
Deal found 9/11$1,602
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/115:45 amBWI - USM
3 stops38h 35mMultiple Airlines
jue. 9/187:15 pmUSM - BWI
3 stops46h 46mMultiple Airlines
Deal found 9/10$1,808
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/309:35 pmBWI - USM
2 stops33h 40mBritish Airways
lun. 11/34:25 pmUSM - BWI
2 stops38h 20mBritish Airways
Deal found 9/10$2,333
This Singapore Airlines deal was found by Cheapflights users on 9/9. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:03 pmBWI - USM
3 stops63h 02mSingapore Airlines
lun. 11/31:25 pmUSM - BWI
2 stops40h 42mSingapore Airlines
Deal found 9/9$2,475
This IEagle deal was found by Cheapflights users on 9/11. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/267:03 pmBWI - USM
3 stops60h 12mSingapore Airlines
dom. 11/21:25 pmUSM - BWI
2 stops40h 26mSingapore Airlines
Deal found 9/11$3,833
This Gurufare deal was found by Cheapflights users on 9/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/17:28 pmBWI - USM
2 stops35h 47mSingapore Airlines
vie. 10/314:25 pmUSM - BWI
3 stops61h 26mSingapore Airlines
Deal found 9/11$3,993
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:35 pmBWI - USM
2 stops33h 40mBritish Airways
jue. 9/184:25 pmUSM - BWI
2 stops38h 20mBritish Airways
Deal found 9/10$6,153

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 septiembre 11, 2025.
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

dom. 10/26

11:39 am-8:00 am

3 stops33h 21m

Ko Samui

dom. 11/2

7:00 am-7:35 am

3 stops35h 35m

$1,602

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

jue. 10/30

9:35 pm-6:15 pm

2 stops33h 40m

Ko Samui

lun. 11/3

1:25 pm-6:45 pm

2 stops41h 20m

$2,333

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

jue. 10/30

7:03 pm-9:05 pm

3 stops63h 02m

Ko Samui

lun. 11/3

1:25 pm-6:07 pm

2 stops40h 42m

$2,475

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

dom. 10/26

7:03 pm-6:15 pm

3 stops60h 12m

Ko Samui

dom. 11/2

1:25 pm-5:51 pm

2 stops40h 26m

$3,833

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

mié. 10/1

7:28 pm-6:15 pm

2 stops35h 47m

Ko Samui

vie. 10/31

4:25 pm-6:51 pm

3 stops61h 26m

$3,993

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

lun. 10/6

5:35 am-8:15 am

3 stops39h 40m

$566

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

mar. 10/7

7:28 pm-6:15 pm

2 stops35h 47m

$1,357

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

sáb. 10/4

7:28 pm-9:10 pm

3 stops62h 42m

$2,016

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

dom. 10/5

7:28 pm-9:10 pm

3 stops62h 42m

$2,638

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

mar. 10/7

7:28 pm-1:10 pm

2 stops30h 42m

$3,048

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 15 results
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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 septiembre 11, 2025.

It’s typically best to fly out from Baltimore to Ko Samui in the evening. Doing so could potentially save you 65% 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 $2,333, 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. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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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