Koh Samui

$1,503+ Cheap flights from Reagan-National (DCA) to Koh 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — USM
Dec 17 — Dec 241
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Koh Samui with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2024.

Round-trip from

$1,911
(Cathay Pacific)
From Washington, D.C. Reagan-National to Ko Samui

Find flight deals from Reagan-National to Koh Samui

Cheapest flights from Reagan-National to Koh Samui
Explore the most affordable flight options available from Reagan-National to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2024.

This Mytrip deal was found by Cheapflights users on 12/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/254:00 pmDCA - USM
3 stops30h 15mMultiple Airlines
Sat 1/258:30 pmUSM - DCA
3 stops35h 27mMultiple Airlines
Deal found 12/12$3,237

Find flights from Reagan-National to Koh Samui within your budget

Customize your flight search to find flights from Reagan-National 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 2,637,880 searches. Data last updated December 12, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Koh Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Tue 2/25

7:45 pm-7:35 pm

2 stops35h 50m

Ko Samui

Tue 3/11

11:40 am-8:59 am

2 stops32h 19m

$1,911

Washington, D.C.Koh Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 1/23

9:00 am-6:15 pm

2 stops45h 15m

Ko Samui

Mon 1/27

4:25 pm-8:59 pm

3 stops40h 34m

$3,526

Washington, D.C.Koh Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Fri 1/10

9:29 am-7:35 pm

2 stops46h 06m

Ko Samui

Fri 1/17

11:40 am-9:32 am

2 stops33h 52m

$4,759

Washington, D.C.Koh Samui

DCA - USM

DCAUSM

Washington, D.C. Reagan-National

Thu 5/8

9:30 am-9:15 pm

2 stops48h 45m

$1,503

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Best time to book a flight from Reagan-National to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Reagan-National 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.

Travel insights for flights from Reagan-National to Koh Samui

Get recent, data-driven insights about flights from Reagan-National to Koh Samui including ideal travel times, pricing trends, and more.

Rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh 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 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 December 12, 2024.
8.1
Very good
1,334 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

8.1
Very good
1,334 reviews
8.1
Very good
1,334 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

7.6
Good
848 reviews
8.1
Very good
1,334 reviews

Comfort

8.0

Crew

8.6

Boarding

8.3

Entertainment

8.0

Food

7.7

Overall

8.1

Reviews

1 / 10

Sin to amd was not good flight. Food was bad. It was like few days old.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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 Washington, D.C. Reagan-National?

    Most people fly into Ko Samui (USM) if they book a flight to Koh Samui from Washington, D.C. Reagan-National. On average, Ko Samui has 0 inbound flights from Washington, D.C. Reagan-National per day from 0 airlines. Ko Samui is conveniently located just 2.1 mi from Koh Samui’s city center.

  • Can I find deals for flights from Reagan-National to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Koh Samui?

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

  • Can I find deals for business class flights from Reagan-National to Koh Samui?

    Yes. Cheapflights offers flight deals from Reagan-National 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.

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.
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.