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Ko Samui

$1,295+ Cheap flights from Maryland 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Maryland to Ko Samui

Keep the following information in mind while searching for Maryland to Ko Samui flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,295
(Trip.com)
Provider with most accurate pricing for Washington, D.C. (WAS)-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ko Samui flights.
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From Maryland to Ko Samui
Search Deals

Find flight deals from Maryland to Ko Samui

Cheapest flights from Maryland to Ko Samui
Explore the most affordable flight options available from Maryland to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:50 pmIAD - USM
2 stops38h 40mMultiple Airlines
Fri 5/237:00 amUSM - IAD
2 stops43h 45mMultiple Airlines
Deal found 4/1$1,295
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/89:00 pmIAD - USM
2 stops29h 55mQatar Airways
Wed 10/151:30 pmUSM - IAD
2 stops37h 40mQatar Airways
Deal found 4/1$1,334
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/171:30 pmIAD - USM
2 stops32h 50mTurkish Airlines
Fri 7/412:10 pmUSM - IAD
2 stops34h 35mTurkish Airlines
Deal found 4/1$1,477
This Gurufare deal was found by Cheapflights users on 3/30. 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.
Thu 5/1511:55 amDCA - USM
2 stops43h 40mCathay Pacific
Thu 5/2210:55 amUSM - DCA
2 stops33h 34mCathay Pacific
Deal found 3/30$1,799
This StudentUniverse deal was found by Cheapflights users on 3/31. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1912:31 pmDCA - USM
3 stops31h 49mMultiple Airlines
Tue 7/18:00 amUSM - DCA
3 stops34h 50mMultiple Airlines
Deal found 3/31$2,093
This AranGrant deal was found by Cheapflights users on 4/1. 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.
Mon 4/146:59 pmIAD - USM
2 stops36h 36mCathay Pacific
Mon 6/3010:55 amUSM - IAD
2 stops54h 55mCathay Pacific
Deal found 4/1$2,516
This KAYAK deal was found by Cheapflights users on 4/1. 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.
Wed 4/167:00 amIAD - USM
2 stops48h 15mSingapore Airlines
Tue 7/11:30 pmUSM - IAD
2 stops40h 49mSingapore Airlines
Deal found 4/1$2,912
This British Airways deal was found by Cheapflights users on 4/1. 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.
Tue 6/179:20 pmBWI - USM
2 stops36h 50mBritish Airways
Fri 7/44:25 pmUSM - BWI
2 stops38h 10mBritish Airways
Deal found 4/1$2,977
This AranGrant deal was found by Cheapflights users on 3/31. 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.
Mon 4/1410:59 amBWI - USM
2 stops44h 36mCathay Pacific
Mon 6/3010:55 amUSM - BWI
2 stops47h 58mCathay Pacific
Deal found 3/31$3,008
This KAYAK deal was found by Cheapflights users on 3/31. 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.
Tue 6/179:59 amDCA - USM
3 stops45h 16mSingapore Airlines
Fri 7/41:30 pmUSM - DCA
2 stops43h 12mSingapore Airlines
Deal found 3/31$3,156
This AranGrant deal was found by Cheapflights users on 4/1. 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.
Tue 4/1510:40 pmIAD - USM
2 stops32h 35mBritish Airways
Mon 6/304:25 pmUSM - IAD
2 stops36h 10mBritish Airways
Deal found 4/1$3,230
This Lufthansa deal was found by Cheapflights users on 3/31. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:05 pmIAD - USM
2 stops31h 40mLufthansa
Thu 7/31:30 pmUSM - IAD
2 stops40h 55mLufthansa
Deal found 3/31$3,298

Cheapflights Fare Finder

Customize your flight search to find flights from Maryland 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 April 2, 2025.
Use the filters below to find and compare flights from Maryland to Ko Samui that are best for you.

Fly from

Maryland

Fly to

Ko Samui

Route

Depart

Return

Price

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Fri 5/16

6:50 pm-8:30 pm

2 stops38h 40m

Ko Samui

Fri 5/23

7:00 am-3:45 pm

2 stops43h 45m

$1,295

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 6/17

1:30 pm-9:20 am

2 stops32h 50m

Ko Samui

Fri 7/4

12:10 pm-11:45 am

2 stops34h 35m

$1,477

Washington, D.C.Ko Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Tue 6/17

7:33 pm-6:35 pm

2 stops36h 02m

Ko Samui

Fri 7/4

10:55 am-11:11 pm

2 stops47h 16m

$2,049

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Mon 4/14

6:59 pm-6:35 pm

2 stops36h 36m

Ko Samui

Mon 6/30

10:55 am-6:50 am

2 stops54h 55m

$2,516

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Wed 4/16

7:00 am-6:15 pm

2 stops48h 15m

Ko Samui

Tue 7/1

1:30 pm-7:19 pm

2 stops40h 49m

$2,912

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Tue 6/17

9:20 pm-9:10 pm

2 stops36h 50m

Ko Samui

Fri 7/4

4:25 pm-7:35 pm

2 stops38h 10m

$2,977

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Mon 4/14

10:59 am-6:35 pm

2 stops44h 36m

Ko Samui

Mon 6/30

10:55 am-11:53 pm

2 stops47h 58m

$3,008

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 4/15

10:40 pm-6:15 pm

2 stops32h 35m

Ko Samui

Mon 6/30

4:25 pm-5:35 pm

2 stops36h 10m

$3,230

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 4/15

11:05 pm-5:45 pm

2 stops31h 40m

Ko Samui

Thu 7/3

1:30 pm-7:25 pm

2 stops40h 55m

$3,298

Washington, D.C.Ko Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Wed 4/16

8:59 am-6:15 pm

2 stops46h 16m

Ko Samui

Tue 7/1

1:30 pm-9:42 pm

2 stops43h 12m

$3,502

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 12 results
1
2

Best time to book a flight from Maryland to Ko Samui

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

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

Find hourly flight availability from Maryland 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 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maryland to Ko Samui as you normally would.

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 April 2, 2025.
See what other customers who have flown with Singapore Airlines, Austrian Airlines and Cathay Pacific from Maryland to Ko Samui have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very good
1,288 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Austrian Airlines
7.6
Good
771 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Cathay Pacific
7.5
Good
841 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Turkish Airlines
7.3
Good
3,748 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Lufthansa
6.7
Okay
6,963 reviews
Singapore Airlines
8.1
Very good
1,288 reviews

Comfort

7.9

Entertainment

8.0

Overall

8.1

Boarding

8.2

Food

7.7

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

Related info for your journey

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

  • What airport do you fly into for flights to Ko Samui from Maryland?

    Ko Samui (USM) is the airport you will fly into if you book a flight from Maryland to Ko Samui. It is only a 2.1 mi journey from Ko Samui (USM) to Ko Samui’s city center.

  • What are the most popular routes from Maryland to Ko Samui?

    Most travelers choose Washington, D.C. Dulles Intl - Ko Samui, Baltimore/Washington - Ko Samui or Washington, D.C. Reagan-National - Ko Samui when deciding on the best route from Maryland to Ko Samui.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Maryland 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 Maryland?

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

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Alternative routes for Maryland to Ko Samui

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