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Ko Samui

$513+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — USM
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,114
(oojo)

One-way from

$513
(Trip.com)
Provider with most accurate pricing for Washington, D.C. (WAS)-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ko Samui flights.
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From Maryland to Ko Samui
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One-way flight from Maryland to Ko Samui
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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 October 30, 2025.

This oojo deal was found by Cheapflights users on 10/28. 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 stops34h 25mEtihad Airways
Mon 1/268:50 amUSM - IAD
2 stops60h 15mEtihad Airways
Deal found 10/28$1,170
This Gurufare deal was found by Cheapflights users on 10/29. 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 11/199:10 pmIAD - USM
2 stops26h 45mEtihad Airways
Wed 11/266:15 pmUSM - IAD
2 stops33h 15mEtihad Airways
Deal found 10/29$1,240
This KAYAK deal was found by Cheapflights users on 10/29. 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.
Mon 12/89:15 pmIAD - USM
2 stops33h 00mTurkish Airlines
Mon 3/94:25 pmUSM - IAD
2 stops31h 20mTurkish Airlines
Deal found 10/29$1,284
This oojo deal was found by Cheapflights users on 10/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/299:15 pmIAD - USM
2 stops33h 00mMultiple Airlines
Sun 1/259:10 pmUSM - IAD
2 stops34h 10mMultiple Airlines
Deal found 10/30$1,304
This oojo deal was found by Cheapflights users on 10/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/299:15 pmIAD - USM
2 stops33h 00mTurkish Airlines
Mon 1/261:25 pmUSM - IAD
2 stops34h 20mTurkish Airlines
Deal found 10/30$1,349
This Cathay Pacific deal was found by Cheapflights users on 10/29. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:45 amDCA - USM
2 stops45h 50mCathay Pacific
Mon 11/1711:40 amUSM - DCA
2 stops43h 04mCathay Pacific
Deal found 10/29$1,441
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Mon 12/89:15 pmIAD - USM
2 stops33h 00mMultiple Airlines
Mon 3/911:10 amUSM - IAD
3 stops33h 55mMultiple Airlines
Deal found 10/29$1,459
This KAYAK deal was found by Cheapflights users on 10/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/291:30 pmIAD - USM
2 stops40h 45mTurkish Airlines
Fri 1/301:25 pmUSM - IAD
2 stops41h 55mTurkish Airlines
Deal found 10/30$1,476
This Qatar Airways deal was found by Cheapflights users on 10/27. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:05 pmIAD - USM
2 stops50h 35mQatar Airways
Mon 11/171:25 pmUSM - IAD
2 stops38h 30mQatar Airways
Deal found 10/27$1,583
This FlightHub deal was found by Cheapflights users on 10/29. 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 11/198:40 pmIAD - USM
3 stops30h 55mMultiple Airlines
Wed 11/269:10 pmUSM - IAD
3 stops46h 50mMultiple Airlines
Deal found 10/29$1,611
This oojo deal was found by Cheapflights users on 10/29. 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.
Mon 12/88:35 amDCA - USM
2 stops47h 00mCathay Pacific
Mon 3/911:40 amUSM - DCA
2 stops45h 35mCathay Pacific
Deal found 10/29$1,641
This KAYAK deal was found by Cheapflights users on 10/29. 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 11/199:45 amDCA - USM
2 stops45h 50mCathay Pacific
Wed 11/2611:40 amUSM - DCA
2 stops40h 15mCathay Pacific
Deal found 10/29$1,726

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 October 30, 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

Tue 3/31

3:35 pm-7:20 am

2 stops28h 45m

Ko Samui

Thu 4/30

7:10 pm-9:45 am

2 stops49h 35m

$1,114

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:10 pm-7:35 pm

2 stops34h 25m

Ko Samui

Mon 1/26

8:50 am-9:05 am

2 stops60h 15m

$1,170

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:10 pm-7:35 pm

2 stops34h 25m

Ko Samui

Sun 1/25

8:50 am-9:05 am

2 stops60h 15m

$1,170

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Wed 11/19

9:10 pm-11:55 am

2 stops26h 45m

Ko Samui

Wed 11/26

6:15 pm-3:30 pm

2 stops33h 15m

$1,240

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Mon 12/8

9:15 pm-6:15 pm

2 stops33h 00m

Ko Samui

Mon 3/9

4:25 pm-12:45 pm

2 stops31h 20m

$1,284

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:15 pm-6:15 pm

2 stops33h 00m

Ko Samui

Sun 1/25

9:10 pm-7:20 pm

2 stops34h 10m

$1,304

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 3/31

3:35 pm-7:20 am

2 stops28h 45m

Ko Samui

Thu 4/30

7:30 pm-8:22 pm

3 stops35h 52m

$1,341

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sat 11/29

9:15 pm-6:15 pm

2 stops33h 00m

Ko Samui

Mon 1/26

1:25 pm-11:45 am

2 stops34h 20m

$1,349

Washington, D.C.Ko Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 11/13

9:45 am-7:35 pm

2 stops45h 50m

Ko Samui

Mon 11/17

11:40 am-6:44 pm

2 stops43h 04m

$1,441

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Mon 12/8

9:15 pm-6:15 pm

2 stops33h 00m

Ko Samui

Mon 3/9

11:10 am-10:05 am

3 stops33h 55m

$1,459

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 35 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 October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Maryland to Ko Samui in the evening. If you’re flexible enough to do this you can expect to save up to 64% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Maryland to Ko Samui?

Use this chart to determine the cheapest time to fly round-trip from Maryland to Ko Samui. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Maryland 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 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, Turkish Airlines, and Cathay Pacific fly from Maryland to Ko Samui in about 28h 45m. The time it takes to get you to your destination can typically vary by up to 17h 05m. 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 cheapest airlines to fly from Maryland to Ko Samui one-way?

    One-way options have recently been found by users for as low as $538 on Etihad Airways. Other airlines that offer cheap prices include Turkish Airlines from $711 and Cathay Pacific from $774 one-way.

  • 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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