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Ko Samui

$595+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,810
(Mytrip)

One-way from

$668
(Kiwi.com)
Provider with most accurate pricing for Baltimore/Washington-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Ko Samui flights.
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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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/25. 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.
Wed 4/232:53 pmBWI - USM
2 stops29h 57mMultiple Airlines
Wed 4/308:55 amUSM - BWI
3 stops43h 58mMultiple Airlines
Deal found 3/25$1,615
This Gurufare deal was found by Cheapflights users on 3/25. 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.
Wed 4/2310:59 amBWI - USM
2 stops44h 36mCathay Pacific
Wed 4/3010:55 amUSM - BWI
2 stops45h 54mCathay Pacific
Deal found 3/25$1,869
This Gurufare deal was found by Cheapflights users on 3/26. 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.
Sat 5/106:25 amBWI - USM
3 stops48h 50mSingapore Airlines
Sat 5/171:30 pmUSM - BWI
2 stops39h 29mSingapore Airlines
Deal found 3/26$2,455
This British Airways deal was found by Cheapflights users on 3/26. 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.
Sat 5/109:20 pmBWI - USM
2 stops36h 50mBritish Airways
Sat 5/174:25 pmUSM - BWI
2 stops38h 10mBritish Airways
Deal found 3/26$2,542
This Gurufare deal was found by Cheapflights users on 3/25. 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.
Sat 5/1010:30 amBWI - USM
3 stops34h 45mJapan Airlines
Sat 5/177:10 pmUSM - BWI
3 stops57h 35mJapan Airlines
Deal found 3/25$2,884

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 March 28, 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

Wed 4/23

2:53 pm-7:50 am

2 stops29h 57m

Ko Samui

Wed 4/30

8:55 am-5:53 pm

3 stops43h 58m

$1,615

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Wed 4/23

10:59 am-6:35 pm

2 stops44h 36m

Ko Samui

Wed 4/30

10:55 am-9:49 pm

2 stops45h 54m

$1,869

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Sat 5/10

6:25 am-6:15 pm

3 stops48h 50m

Ko Samui

Sat 5/17

1:30 pm-5:59 pm

2 stops39h 29m

$2,455

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Sat 5/10

9:20 pm-9:10 pm

2 stops36h 50m

Ko Samui

Sat 5/17

4:25 pm-7:35 pm

2 stops38h 10m

$2,542

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Sat 5/10

10:30 am-8:15 am

3 stops34h 45m

Ko Samui

Sat 5/17

7:10 pm-5:45 pm

3 stops57h 35m

$2,884

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Tue 5/6

6:10 am-7:20 am

3 stops38h 10m

$595

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Thu 4/24

7:06 pm-6:35 pm

2 stops36h 29m

$996

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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 March 28, 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 23, 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. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko 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 Ko Samui

Get insights into the airlines that provide service to Ko 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 Ko Samui. Reviews last updated March 28, 2025.
Singapore Airlines
8.1
Very good
1,285 reviews

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Singapore Airlines
8.1
Very good
1,285 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Cathay Pacific
7.5
Good
837 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
British Airways
6.6
Okay
6,712 reviews
Singapore Airlines
8.1
Very good
1,285 reviews

Entertainment

8.0

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

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.

  • 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.

Traveling to a place near Baltimore?

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

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