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Ko Samui

$653+ Cheap flights from Maryland 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$1,031
(FlightHub)

One-way from

$653
(KAYAK)
From Maryland to Ko Samui
Search Deals
One-way flight 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 September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/156:55 pmIAD - USM
2 stops39h 15mMultiple Airlines
Mon 9/221:30 pmUSM - IAD
2 stops29h 38mMultiple Airlines
Deal found 9/14$921
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/157:00 amDCA - USM
2 stops27h 10mMultiple Airlines
Mon 9/224:25 pmUSM - DCA
2 stops40h 12mMultiple Airlines
Deal found 9/14$921
This FlightHub deal was found by Cheapflights users on 9/13. 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 10/110:05 pmIAD - USM
2 stops25h 40mMultiple Airlines
Fri 10/315:05 pmUSM - IAD
2 stops34h 45mMultiple Airlines
Deal found 9/13$1,031
This oojo deal was found by Cheapflights users on 9/13. 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.
Sat 11/299:10 pmIAD - USM
2 stops24h 10mMultiple Airlines
Mon 1/267:35 pmUSM - IAD
2 stops32h 15mMultiple Airlines
Deal found 9/13$1,133
This Etihad Airways deal was found by Cheapflights users on 9/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/299:10 pmIAD - USM
2 stops23h 30mEtihad Airways
Mon 1/266:40 pmUSM - IAD
2 stops33h 10mEtihad Airways
Deal found 9/14$1,159
This oojo deal was found by Cheapflights users on 9/14. 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.
Sat 11/299:10 pmIAD - USM
2 stops23h 30mEtihad Airways
Sun 1/258:50 amUSM - IAD
2 stops67h 00mEtihad Airways
Deal found 9/14$1,166
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 11/291:30 pmIAD - USM
2 stops30h 40mTurkish Airlines
Sun 1/251:25 pmUSM - IAD
2 stops34h 20mTurkish Airlines
Deal found 9/15$1,176
This oojo deal was found by Cheapflights users on 9/14. 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.
Wed 10/2910:10 pmIAD - USM
2 stops51h 55mMultiple Airlines
Wed 11/57:00 pmUSM - IAD
2 stops28h 45mMultiple Airlines
Deal found 9/14$1,195
This oojo deal was found by Cheapflights users on 9/14. 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.
Wed 10/19:00 pmIAD - USM
2 stops26h 10mMultiple Airlines
Fri 10/107:15 pmUSM - IAD
2 stops31h 25mMultiple Airlines
Deal found 9/14$1,215
This Trip.com deal was found by Cheapflights users on 9/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/291:30 pmIAD - USM
2 stops29h 40mMultiple Airlines
Sat 12/69:10 pmUSM - IAD
2 stops34h 05mMultiple Airlines
Deal found 9/12$1,248
This Mytrip deal was found by Cheapflights users on 9/14. 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 10/15:45 amBWI - USM
3 stops39h 05mMultiple Airlines
Fri 10/317:55 amUSM - BWI
3 stops33h 40mMultiple Airlines
Deal found 9/14$1,619
This Mytrip deal was found by Cheapflights users on 9/14. 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 10/291:35 pmBWI - USM
3 stops31h 10mMultiple Airlines
Wed 11/57:55 amUSM - BWI
3 stops47h 24mMultiple Airlines
Deal found 9/14$1,804

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 September 15, 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

Wed 10/1

10:05 pm-10:45 am

2 stops25h 40m

Ko Samui

Fri 10/31

6:15 pm-4:50 pm

2 stops33h 35m

$1,078

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:10 pm-9:20 am

2 stops24h 10m

Ko Samui

Mon 1/26

7:35 pm-3:50 pm

2 stops32h 15m

$1,133

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:10 pm-8:40 am

2 stops23h 30m

Ko Samui

Mon 1/26

6:40 pm-3:50 pm

2 stops33h 10m

$1,159

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:10 pm-8:40 am

2 stops23h 30m

Ko Samui

Sun 1/25

8:50 am-3:50 pm

2 stops67h 00m

$1,166

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

1:30 pm-8:10 am

2 stops30h 40m

Ko Samui

Sun 1/25

1:25 pm-11:45 am

2 stops34h 20m

$1,176

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Wed 10/29

10:10 pm-1:05 pm

2 stops51h 55m

Ko Samui

Wed 11/5

7:00 pm-11:45 am

2 stops28h 45m

$1,195

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

1:30 pm-7:10 am

2 stops29h 40m

Ko Samui

Sat 12/6

9:10 pm-7:15 pm

2 stops34h 05m

$1,248

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

1:30 pm-8:10 am

2 stops30h 40m

Ko Samui

Fri 1/30

1:25 pm-7:15 pm

2 stops41h 50m

$1,301

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 9/25

1:30 pm-8:35 am

2 stops32h 05m

Ko Samui

Mon 9/29

4:25 pm-11:45 am

2 stops30h 20m

$1,351

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 9/25

9:00 pm-10:10 am

2 stops26h 10m

Ko Samui

Mon 9/29

3:50 pm-3:40 pm

2 stops34h 50m

$1,369

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 36 results
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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 September 15, 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.

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.

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

    Airlines like Etihad Airways and Singapore Airlines fly from Maryland to Ko Samui in about 23h 30m. The time it takes to get you to your destination can typically vary by up to 21h 46m. There are 9076 mi between Maryland and Ko Samui. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 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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