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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 167% on your flight compared to booking on days when demand is much higher.

Most accurate provider : When it comes to deals on Baltimore-Ko Samui flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Baltimore-Ko Samui flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

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.

$1,180+ Flights from Baltimore to Ko Samui

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1. Tell us where you want to go

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2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheap flight deals from Baltimore to Ko Samui

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$2,367 (Gurufare)

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

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 April 17, 2025.

Wed 10/17:28 pmBWI - USM

2 stops38h 42mSingapore Airlines

Fri 10/311:25 pmUSM - BWI

2 stops38h 22mSingapore Airlines

Deal found 4/16

$2,011

Tue 6/1711:46 amBWI - USM

2 stops43h 49mCathay Pacific

Fri 7/410:55 amUSM - BWI

2 stops46h 22mCathay Pacific

Deal found 4/16

$2,186

Sun 6/89:20 pmBWI - USM

2 stops36h 50mBritish Airways

Sun 6/154:25 pmUSM - BWI

2 stops38h 10mBritish Airways

Deal found 4/16

$2,757

Best flights from Baltimore to Ko Samui
Discover carefully curated flight deals from Baltimore to Ko Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Tue 6/177:12 pmBWI - USM

2 stops36h 23mCathay Pacific

Fri 7/410:55 amUSM - BWI

2 stops46h 22mCathay Pacific

Deal found 4/17

$2,367

Mon 5/269:20 pmBWI - USM

2 stops33h 55mBritish Airways

Tue 6/104:25 pmUSM - BWI

2 stops38h 10mBritish Airways

Deal found 4/17

$2,703

Fri 7/46:05 amBWI - USM

3 stops49h 10mMultiple Airlines

Fri 7/111:30 pmUSM - BWI

2 stops29h 37mMultiple Airlines

Deal found 4/17

$2,709

Fri 7/46:05 amBWI - USM

3 stops52h 05mSingapore Airlines

Fri 7/111:30 pmUSM - BWI

3 stops53h 37mSingapore Airlines

Deal found 4/17

$3,662

Last-minute flights from Baltimore to Ko Samui
Discover last-minute flight deals from Baltimore to Ko Samui. Data last updated April 17, 2025 and is based on user searches.

Mon 5/269:20 pmBWI - USM

2 stops33h 55mBritish Airways

Tue 6/104:25 pmUSM - BWI

2 stops38h 10mBritish Airways

Deal found 4/17

$2,703

Mon 5/266:05 pmBWI - USM

2 stops37h 10mSingapore Airlines

Tue 6/104:25 pmUSM - BWI

3 stops59h 29mSingapore Airlines

Deal found 4/17

$3,723

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Fri 8/15

11:27 am-6:35 pm

2 stops44h 08m

Ko Samui

Tue 8/26

10:55 am-10:17 pm

2 stops46h 22m

$1,939

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Wed 10/1

7:28 pm-6:15 pm

2 stops35h 47m

Ko Samui

Fri 10/31

1:25 pm-4:47 pm

2 stops38h 22m

$2,011

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Mon 5/26

9:20 pm-6:15 pm

2 stops33h 55m

Ko Samui

Tue 6/10

4:25 pm-7:35 pm

2 stops38h 10m

$2,703

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Fri 7/4

6:05 am-6:15 pm

3 stops49h 10m

Ko Samui

Fri 7/11

1:30 pm-8:07 am

2 stops29h 37m

$2,709

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Thu 8/14

6:02 pm-9:15 pm

2 stops40h 13m

$1,180

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Compare providers for flights from Baltimore to Ko Samui

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 April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Baltimore-Ko Samui flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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?

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?

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.

Rainfall in Ko Samui 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

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

Singapore Airlines

8.1

Very good

1,288 reviews

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

1,288 reviews

Singapore Airlines

8.1

Very good

1,288 reviews

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

849 reviews

Singapore Airlines

8.1

Very good

1,288 reviews

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

6,767 reviews

Singapore Airlines

8.1

Very good

1,288 reviews

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

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.

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$1,180+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Baltimore to Ko Samui with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Baltimore to Ko Samui

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from Baltimore to Ko Samui

Cheapest flights from Baltimore to Ko SamuiExplore 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 April 17, 2025.

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 April 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Baltimore to Ko Samui that are best for you.

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 April.

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.

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 April 17, 2025.

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.

Rainfall in Ko Samui by month

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

Temperature in Ko Samui by month

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

Reviews of airlines servicing Ko Samui

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?

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

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

Traveling to a place near Baltimore?

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Alternative routes for Baltimore to Ko Samui

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Travel Smart

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 April 17, 2025.