HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from District of Columbia to Koh Samui (USM) from $1,740

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — USM
May 27 — Jun 31
From?
To?
Mon 5/27
Mon 6/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

When is the cheapest time to fly from District of Columbia to Koh Samui (DC - USM)?

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

Cheap Qatar Airways flights from District of Columbia to Koh Samui

Explore cheap flight options specifically provided by Qatar Airways for the route between District of Columbia and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Take a peek at the cheapest Qatar Airways flights we've detected traveling from District of Columbia to Koh Samui. Come back soon if you're not finding the exact deal you're looking for.
Thu 8/89:05 pmIAD - USM
2 stops26h 40mQatar Airways
Fri 8/169:10 pmUSM - IAD
2 stops30h 00mQatar Airways
Deal found 5/20$1,859
Fri 8/99:05 pmIAD - USM
2 stops26h 05mQatar Airways
Fri 8/169:10 pmUSM - IAD
2 stops30h 00mQatar Airways
Deal found 5/20$1,881
Thu 6/202:00 pmDCA - USM
3 stops32h 20mQatar Airways
Sun 6/309:10 pmUSM - DCA
3 stops47h 07mQatar Airways
Deal found 5/22$2,333
Thu 8/87:45 pmDCA - USM
3 stops34h 20mQatar Airways
Fri 8/169:10 pmUSM - DCA
3 stops47h 06mQatar Airways
Deal found 5/20$2,510
Fri 8/97:45 pmDCA - USM
3 stops33h 50mQatar Airways
Fri 8/169:10 pmUSM - DCA
3 stops47h 06mQatar Airways
Deal found 5/20$2,519

Cheap Cathay Pacific flights from District of Columbia to Koh Samui

Explore cheap flight options specifically provided by Cathay Pacific for the route between District of Columbia and Koh Samui. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Browse through some of the cheapest Cathay Pacific flights traveling from District of Columbia to Koh Samui. Make sure to examine the flight information before completing your reservation.
Thu 6/2012:29 pmDCA - USM
2 stops43h 06mCathay Pacific
Sun 6/308:00 amUSM - DCA
3 stops43h 24mCathay Pacific
Deal found 5/22$2,680
Thu 6/2012:29 pmDCA - USM
2 stops43h 06mCathay Pacific
Sun 6/3010:55 amUSM - DCA
2 stops40h 29mCathay Pacific
Deal found 5/22$2,734
Fri 8/912:29 pmDCA - USM
2 stops43h 06mCathay Pacific
Fri 8/1610:55 amUSM - DCA
2 stops40h 22mCathay Pacific
Deal found 5/20$2,744

Cheap District of Columbia to Koh Samui flights in May & June 2024

Find cheap flight options from District of Columbia to Koh Samui specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Prices were last updated on May 22, 2024.
Listed are some of the best fares we've found on flights departing from District of Columbia to Koh Samui in 2024. For more flight deals, be sure to check back very soon.
Thu 6/209:50 pmIAD - USM
2 stops36h 25mTurkish Airlines
Sun 6/301:30 pmUSM - IAD
2 stops36h 15mTurkish Airlines
Deal found 5/22$1,755
Thu 6/202:00 pmDCA - USM
3 stops32h 20mQatar Airways
Sun 6/309:10 pmUSM - DCA
3 stops47h 07mQatar Airways
Deal found 5/22$2,333
Thu 6/204:00 pmIAD - USM
3 stops29h 15mMultiple Airlines
Sun 6/303:20 pmUSM - IAD
3 stops34h 20mMultiple Airlines
Deal found 5/22$2,459
Thu 6/2010:55 amIAD - USM
3 stops34h 10mMultiple Airlines
Sun 6/301:30 pmUSM - IAD
2 stops36h 15mMultiple Airlines
Deal found 5/22$2,601
Thu 6/2012:29 pmDCA - USM
2 stops43h 06mCathay Pacific
Sun 6/308:00 amUSM - DCA
3 stops43h 24mCathay Pacific
Deal found 5/22$2,680
Thu 6/2012:29 pmDCA - USM
2 stops43h 06mCathay Pacific
Sun 6/3010:55 amUSM - DCA
2 stops40h 29mCathay Pacific
Deal found 5/22$2,734

District of Columbia to Koh Samui 2024 flight deals

Discover exclusive flight deals for travel between District of Columbia and Koh Samui in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
Listed are some of the best fares we've found on flights departing from District of Columbia to Koh Samui in 2024. For more flight deals, be sure to check back very soon.
Mon 7/84:40 pmIAD - USM
2 stops29h 40mMultiple Airlines
Mon 7/155:55 pmUSM - IAD
2 stops31h 50mMultiple Airlines
Deal found 5/22$1,740
Thu 6/209:50 pmIAD - USM
2 stops36h 25mTurkish Airlines
Sun 6/301:30 pmUSM - IAD
2 stops36h 15mTurkish Airlines
Deal found 5/22$1,755
Thu 8/89:05 pmIAD - USM
2 stops26h 40mQatar Airways
Fri 8/169:10 pmUSM - IAD
2 stops30h 00mQatar Airways
Deal found 5/20$1,859
Fri 8/99:05 pmIAD - USM
2 stops26h 05mQatar Airways
Fri 8/169:10 pmUSM - IAD
2 stops30h 00mQatar Airways
Deal found 5/20$1,881
Thu 6/202:00 pmDCA - USM
3 stops32h 20mQatar Airways
Sun 6/309:10 pmUSM - DCA
3 stops47h 07mQatar Airways
Deal found 5/22$2,333
Mon 7/89:55 amIAD - USM
3 stops35h 10mMultiple Airlines
Mon 7/157:10 pmUSM - IAD
2 stops29h 20mMultiple Airlines
Deal found 5/22$2,369
Thu 6/204:00 pmIAD - USM
3 stops29h 15mMultiple Airlines
Sun 6/303:20 pmUSM - IAD
3 stops34h 20mMultiple Airlines
Deal found 5/22$2,459
Mon 7/87:45 pmDCA - USM
3 stops33h 00mQatar Airways
Mon 7/159:10 pmUSM - DCA
3 stops47h 06mQatar Airways
Deal found 5/22$2,486
Mon 7/87:45 pmDCA - USM
2 stops59h 50mCathay Pacific
Mon 7/1510:55 amUSM - DCA
2 stops46h 05mCathay Pacific
Deal found 5/22$2,497

Find flights from District of Columbia to Koh Samui within your budget

Customize your flight search to find flights from District of Columbia to Koh 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 2,730,072 searches. Data last updated May 22, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,755 - $2,734

Route

Depart

Return

Price

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 6/20

2 stops36h 25m

Ko Samui

Sun 6/30

2 stops36h 15m

$1,755

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 8/8

2 stops26h 40m

Ko Samui

Fri 8/16

2 stops30h 00m

$1,859

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Fri 8/9

2 stops26h 05m

Ko Samui

Fri 8/16

2 stops30h 00m

$1,881

Washington, D.C. Reagan-NationalKo Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 6/20

3 stops32h 20m

Ko Samui

Sun 6/30

3 stops47h 07m

$2,333

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 6/20

3 stops29h 15m

Ko Samui

Sun 6/30

3 stops34h 20m

$2,459

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Thu 8/8

2 stops46h 35m

Ko Samui

Fri 8/16

3 stops46h 45m

$2,501

Washington, D.C. Reagan-NationalKo Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 6/20

2 stops43h 06m

Ko Samui

Sun 6/30

3 stops43h 24m

$2,680

Washington, D.C. Dulles IntlKo Samui

IAD - USM

IADUSM

Washington, D.C. Dulles Intl

Fri 8/9

3 stops51h 05m

Ko Samui

Fri 8/16

3 stops62h 05m

$2,733

Washington, D.C. Reagan-NationalKo Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 6/20

2 stops43h 06m

Ko Samui

Sun 6/30

2 stops40h 29m

$2,734

Flights are sorted by cheapest first

Deals found on 5/22

No data available for this route at this time. Please check back soon.

Best time to book a flight from District of Columbia to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from District of Columbia 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.

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated May 22, 2024.
Read through reviews of airlines operating flights from District of Columbia to Koh Samui, such as Qatar Airways, Cathay Pacific and Singapore Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very good
1,436 reviews
Check prices

Entertainment

8.1

Boarding

8.4

Food

7.8

Comfort

8.1

Overall

8.2

Crew

8.7

Reviews

1 / 10

They changed my flight but didn't notify the other carrier. I can't do online check-in and had to wait 30 min to get it all sort out at the counter.

Singapore Airlines
8.2
Very good
1,436 reviews
Singapore Airlines
8.2
Very good
1,436 reviews
Check prices

Entertainment

8.1

Boarding

8.4

Food

7.8

Comfort

8.1

Overall

8.2

Crew

8.7

Reviews

1 / 10

They changed my flight but didn't notify the other carrier. I can't do online check-in and had to wait 30 min to get it all sort out at the counter.

Cathay Pacific
7.8
Good
1,074 reviews
Singapore Airlines
8.2
Very good
1,436 reviews
Check prices

Entertainment

8.1

Boarding

8.4

Food

7.8

Comfort

8.1

Overall

8.2

Crew

8.7

Reviews

1 / 10

They changed my flight but didn't notify the other carrier. I can't do online check-in and had to wait 30 min to get it all sort out at the counter.

Qatar Airways
7.7
Good
4,365 reviews
Singapore Airlines
8.2
Very good
1,436 reviews
Check prices

Entertainment

8.1

Boarding

8.4

Food

7.8

Comfort

8.1

Overall

8.2

Crew

8.7

Reviews

1 / 10

They changed my flight but didn't notify the other carrier. I can't do online check-in and had to wait 30 min to get it all sort out at the counter.

Turkish Airlines
7.4
Good
3,712 reviews
Singapore Airlines
8.2
Very good
1,436 reviews
Check prices

Entertainment

8.1

Boarding

8.4

Food

7.8

Comfort

8.1

Overall

8.2

Crew

8.7

Reviews

1 / 10

They changed my flight but didn't notify the other carrier. I can't do online check-in and had to wait 30 min to get it all sort out at the counter.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Koh 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 Koh Samui from District of Columbia?

    For a flight from District of Columbia to Koh Samui, you will be flying into Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city.

  • Can I find flights from District of Columbia to Koh Samui for under $1,800 on Cheapflights?

    Yes, there are multiple flights from District of Columbia to Koh Samui for under $1,800. The cheapest flight booked recently is on Turkish Airlines for just $1,755, but on average you can expect to pay $2,566.

  • What does IAD to USM mean?

    This is defined as Washington, D.C. Dulles Intl Airport (IAD) and Ko Samui Airport (USM). Codes like Ko Samui Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from District of Columbia to Koh Samui that include extra baggage allowance?

    The amount of baggage you can bring on your District of Columbia to Koh Samui flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from District of Columbia to Koh Samui with specific airlines?

    Yes, Cheapflights allows you to browse and filter District of Columbia to Koh Samui flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from District of Columbia to Koh Samui that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Koh Samui?

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

  • Can I find deals for business class flights from District of Columbia to Koh Samui?

    Yes. Cheapflights offers flight deals from District of Columbia to Koh 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.

  • Can I find deals for flights from District of Columbia to Koh Samui that allow pets onboard?

    Many airlines flying from District of Columbia to Koh Samui offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from District of Columbia to Koh Samui?

    Yes, you can often find last-minute deals on District of Columbia to Koh Samui flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the District of Columbia to Koh Samui flight deals updated?

    The District of Columbia to Koh Samui flight deals you see on this page were last updated on 5/22.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Koh Samui
See prices for flight routes from nearby airports that may be better suited for you.

Los Angeles to Suvarnabhumi flights
John F Kennedy Intl to Suvarnabhumi flights
San Francisco to Suvarnabhumi flights
Newark to Suvarnabhumi flights
Seattle to Suvarnabhumi flights
LaGuardia to Suvarnabhumi flights
Dulles Intl to Suvarnabhumi flights
O'Hare Intl to Suvarnabhumi flights
Dallas/Fort Worth to Suvarnabhumi flights
Ontario to Suvarnabhumi flights
Baltimore to Suvarnabhumi flights
Reagan-National to Suvarnabhumi flights
John F Kennedy Intl to Don Mueang Intl flights
Los Angeles to Don Mueang Intl flights
Boston to Suvarnabhumi flights
Hobby to Suvarnabhumi flights
Orlando to Suvarnabhumi flights
Honolulu to Suvarnabhumi flights
Atlanta to Suvarnabhumi flights
Miami to Suvarnabhumi flights
George Bush Intcntl to Suvarnabhumi flights
Minneapolis to Suvarnabhumi flights
Las Vegas to Suvarnabhumi flights
Denver to Suvarnabhumi flights
Midway to Suvarnabhumi flights
San Jose to Suvarnabhumi flights
Love Field to Suvarnabhumi flights
Sky Harbor Intl to Suvarnabhumi flights
San Diego to Suvarnabhumi flights
Burbank to Suvarnabhumi flights
San Francisco to Don Mueang Intl flights
Charlotte to Suvarnabhumi flights
Tampa to Suvarnabhumi flights
Nashville to Suvarnabhumi flights
Portland to Suvarnabhumi flights
Austin to Suvarnabhumi flights
O'Hare Intl to Don Mueang Intl flights
Fort Lauderdale to Suvarnabhumi flights
Detroit to Suvarnabhumi flights
Santa Ana to Suvarnabhumi flights
Los Angeles to Phuket City flights
Philadelphia to Suvarnabhumi flights
Salt Lake City to Suvarnabhumi flights
John F Kennedy Intl to Phuket City flights
Oakland to Suvarnabhumi flights
Raleigh to Suvarnabhumi flights
LaGuardia to Phuket City flights
Sacramento to Suvarnabhumi flights
Newark to Phuket City flights
Cleveland to Suvarnabhumi flights

Top airline flying from District of Columbia to Koh Samui

Discover the top airline that operate flights from District of Columbia to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,730,072 searches. Data last updated May 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,409Average$1,490FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Chicago to Denver flights
Chicago to Seattle flights
Fort Lauderdale to New York flights
San Francisco to Portland flights
Miami to Mexico City flights
Boston to Fort Lauderdale flights
Los Angeles to Miami flights
Nashville to Knoxville flights
New York John F Kennedy Intl Airport to Los Angeles flights
New York to Beijing flights
San Francisco to Istanbul flights
District of Columbia to Massachusetts flights

Search flights from District of Columbia to Koh Samui by cabin class

Find flights from District of Columbia to Koh Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Neiva La Marguita
Flights to Hyannis Barnstable
Flights to Laayoune Hassan I
Flights to Edremit/Korfez
Flights to Vava'u Lupepau'U
Flights to Surigao
Flights to Melilla
Flights to Virac
Flights to Rhinelander Oneida County
Flights to Cornwall Newquay
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Mason City
Flights to Ningbo Lishe Intl
Flights to Miyakojima Hirara
Flights to Kirkwall Arpt
Flights to Girona Costa Brava
Flights to Provincetown
Flights to Perugia Sant Egidio
Flights to Samos
Flights to Constanţa Mihail Kogalniceanu
Flights to Dharamshala Kangra
Flights to Dalaman
Flights to Pellston Emmet County

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from District of Columbia to Koh Samui?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Koh Samui from District of Columbia today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from District of Columbia to Koh Samui?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from District of Columbia to Koh Samui for you. Better yet — we are completely free to use.

Can Cheapflights find flights from District of Columbia to Koh Samui with no change fees?

Need flexible booking options for your flight to Koh Samui from District of Columbia? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from District of Columbia to Koh Samui become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines