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Cheap flights from Maryland to Ko Samui from $1,074

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to Ko Samui departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Maryland to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:10 pm - 10:30 am
IAD
-
USM
32h 20m
2 stops
Multiple Airlines Logo
3:25 pm - 9:45 am
USM
-
IAD
29h 20m
2 stops
$1,074Multiple Airlines
Tue, Sep 8 - Sat, Sep 12
Multiple Airlines Logo
3:10 pm - 9:35 pm
IAD
-
USM
43h 25m
2 stops
Multiple Airlines Logo
8:45 am - 9:45 am
USM
-
IAD
36h 00m
2 stops
$1,161Multiple Airlines
Thu, Oct 8 - Thu, Oct 15
Etihad Airways Logo
3:10 pm - 10:45 am
IAD
-
USM
32h 35m
2 stops
Etihad Airways Logo
9:10 pm - 10:05 am
USM
-
IAD
47h 55m
2 stops
$1,302Etihad Airways
Tue, Oct 20 - Wed, Oct 28
Turkish Airlines Logo
1:20 pm - 8:35 am
IAD
-
USM
32h 15m
2 stops
Turkish Airlines Logo
3:25 pm - 12:45 pm
USM
-
IAD
32h 20m
2 stops
$1,304Turkish Airlines
Mon, Oct 19 - Sat, Oct 24
Turkish Airlines Logo
9:45 pm - 1:45 pm
IAD
-
USM
29h 00m
2 stops
Turkish Airlines Logo
6:25 pm - 12:45 pm
USM
-
IAD
29h 20m
2 stops
$1,323Turkish Airlines
Sun, Oct 18 - Sat, Oct 24
Etihad Airways Logo
3:10 pm - 8:15 am
IAD
-
USM
30h 05m
2 stops
Etihad Airways Logo
3:50 pm - 10:05 am
USM
-
IAD
53h 15m
2 stops
$1,328Etihad Airways
Sun, Oct 18 - Fri, Oct 30
Cathay Pacific Logo
6:59 pm - 7:40 pm
DCA
-
USM
37h 41m
2 stops
Cathay Pacific Logo
11:55 am - 5:59 pm
USM
-
DCA
41h 04m
2 stops
$1,774Cathay Pacific
Tue, Sep 8 - Sat, Sep 12
Cathay Pacific Logo
10:14 am - 7:40 pm
DCA
-
USM
46h 26m
2 stops
Cathay Pacific Logo
11:55 am - 9:00 pm
USM
-
DCA
44h 05m
2 stops
$2,117Cathay Pacific
Sat, May 30 - Fri, Jun 5
British Airways Logo
9:35 pm - 9:05 pm
BWI
-
USM
36h 30m
2 stops
British Airways Logo
1:25 pm - 6:45 pm
USM
-
BWI
41h 20m
2 stops
$2,354British Airways
Sat, Oct 31 - Tue, Nov 3
British Airways Logo
9:35 pm - 6:15 pm
BWI
-
USM
33h 40m
2 stops
British Airways Logo
4:25 pm - 6:45 pm
USM
-
BWI
38h 20m
2 stops
$2,355British Airways
Sat, Oct 31 - Tue, Nov 3

Etihad Airways flights from Maryland to Ko Samui

Our best Etihad Airways deals on Maryland to Ko Samui flight tickets
Etihad Airways
Oct 20
IAD3:10 pmWashington, D.C. Dulles Intl
32h 35m
2 stops
USM10:45 amKo Samui
Oct 28
USM9:10 pmKo Samui
47h 55m
2 stops
IAD10:05 amWashington, D.C. Dulles Intl
$1,302
Etihad Airways
Oct 18
IAD3:10 pmWashington, D.C. Dulles Intl
30h 05m
2 stops
USM8:15 amKo Samui
Oct 30
USM3:50 pmKo Samui
53h 15m
2 stops
IAD10:05 amWashington, D.C. Dulles Intl
$1,328
Etihad Airways
Oct 22
IAD3:10 pmWashington, D.C. Dulles Intl
29h 25m
2 stops
USM7:35 amKo Samui
Oct 26
USM6:15 pmKo Samui
26h 50m
2 stops
IAD10:05 amWashington, D.C. Dulles Intl
$1,340

Turkish Airlines flights from Maryland to Ko Samui

Our best Turkish Airlines deals on Maryland to Ko Samui flight tickets
Turkish Airlines
Oct 19
IAD1:20 pmWashington, D.C. Dulles Intl
32h 15m
2 stops
USM8:35 amKo Samui
Oct 24
USM3:25 pmKo Samui
32h 20m
2 stops
IAD12:45 pmWashington, D.C. Dulles Intl
$1,304
Turkish Airlines
Oct 18
IAD9:45 pmWashington, D.C. Dulles Intl
29h 00m
2 stops
USM1:45 pmKo Samui
Oct 24
USM6:25 pmKo Samui
29h 20m
2 stops
IAD12:45 pmWashington, D.C. Dulles Intl
$1,323
Turkish Airlines
Oct 17
IAD9:45 pmWashington, D.C. Dulles Intl
33h 30m
2 stops
USM6:15 pmKo Samui
Oct 24
USM10:05 amKo Samui
37h 40m
2 stops
IAD12:45 pmWashington, D.C. Dulles Intl
$1,351

momondo 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, momondo users made 832,500 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from Maryland to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 9/8

3:10 pm-10:30 am

2 stops32h 20m

Ko Samui

Sat 9/12

3:25 pm-9:45 am

2 stops29h 20m

$1,074

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 10/8

3:10 pm-9:35 pm

2 stops43h 25m

Ko Samui

Thu 10/15

8:45 am-9:45 am

2 stops36h 00m

$1,161

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Tue 10/20

3:10 pm-10:45 am

2 stops32h 35m

Ko Samui

Wed 10/28

9:10 pm-10:05 am

2 stops47h 55m

$1,302

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Mon 10/19

1:20 pm-8:35 am

2 stops32h 15m

Ko Samui

Sat 10/24

3:25 pm-12:45 pm

2 stops32h 20m

$1,304
Quickest round-trip

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sun 10/18

9:45 pm-1:45 pm

2 stops29h 00m

Ko Samui

Sat 10/24

6:25 pm-12:45 pm

2 stops29h 20m

$1,323

Washington, D.C.Ko Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Sun 10/18

3:10 pm-8:15 am

2 stops30h 05m

Ko Samui

Fri 10/30

3:50 pm-10:05 am

2 stops53h 15m

$1,328

Washington, D.C.Ko Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Tue 9/8

6:59 pm-7:40 pm

2 stops37h 41m

Ko Samui

Sat 9/12

11:55 am-5:59 pm

2 stops41h 04m

$1,774

Washington, D.C.Ko Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Sat 5/30

10:14 am-7:40 pm

2 stops46h 26m

Ko Samui

Fri 6/5

11:55 am-9:00 pm

2 stops44h 05m

$2,117

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Sat 10/31

9:35 pm-9:05 pm

2 stops36h 30m

Ko Samui

Tue 11/3

1:25 pm-6:45 pm

2 stops41h 20m

$2,354

BaltimoreKo Samui

BWI - USM

BWIUSM

Baltimore/Washington

Sat 10/31

9:35 pm-6:15 pm

2 stops33h 40m

Ko Samui

Tue 11/3

4:25 pm-6:45 pm

2 stops38h 20m

$2,355

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ko Samui from

How to get the cheapest flight ticket from Maryland to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Maryland to Ko Samui?

Etihad Airways, Turkish Airlines, and Cathay Pacific are the most popular carriers operating from Maryland to Ko Samui

Cheap Maryland to Ko Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maryland to Ko Samui

Fastest flight time

26h 45m

Direct flights

None
The fastest flight from Maryland to Ko Samui takes 26h 45m
There are no direct flights from Maryland to Ko Samui. There are no popular flight routes from Maryland to Ko Samui.
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Frequently asked questions about flying from Maryland to Ko Samui

  • When did momondo last update prices for flights from Maryland to Ko Samui Airport?

    Prices for flights from Maryland to Ko Samui Airport are updated daily.

  • How old do you have to be to fly from Maryland to Ko Samui Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Maryland to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The necessary travel and health documents for your Ko Samui Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Ko Samui?

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

Why use momondo?

Why should I use momondo to find a flight deal from Maryland to Ko Samui?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ko Samui from Maryland.

Can I find flights from Maryland to Ko Samui with flexible booking policies on momondo?

All flight searches from Maryland to Ko Samui on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Maryland to Ko Samui?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Maryland to Ko Samui.

I’m not ready to book a flight from Maryland to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from Maryland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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