Cheap flights from Ko Samui to Washington, D.C. from £685

Cheap flights from Ko Samui to Washington, D.C. from £685

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2 stops
Thu, Jul 9
Ko Samui USMWashington, D.C. IAD
£685
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2 stops
Sun, Jul 12
Ko Samui USMWashington, D.C. IAD
£709
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2 stops
Wed, Jul 8
Ko Samui USMWashington, D.C. IAD
£709
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2 stops
Mon, Jul 13
Ko Samui USMWashington, D.C. IAD
£709
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2 stops
Thu, Jul 9
Ko Samui USMWashington, D.C. IAD
£750
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2 stops
Thu, Jul 9
Ko Samui USMWashington, D.C. IAD
£760
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2 stops
Thu, Jul 9 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,326
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2 stops
Thu, Jul 9 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,350
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2 stops
Fri, Jul 10 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,377
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2 stops
Fri, Jul 10 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,386
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2 stops
Fri, Jul 10 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,402
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2 stops
Fri, Jul 10 – Wed, Jul 15
Ko Samui USMWashington, D.C. IAD
£1,411
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How much do flights to Washington, D.C. cost?

Cheapest one-way trip

£685

Cheapest round-trip

£1,326

Average round-trip

£1,645

Includes rare itinerary

Travel hack

Most popular airline

Bangkok Airways

Getting from Washington, D.C. airports to the city center

Fastest options: Metro from DCA. Best value: Metro and bus services from all airports.

Washington, D.C. is served by three major airports, each offering various airport transfers to city center destinations. Ronald Reagan Washington National Airport (DCA) is the closest, located just 6 km south of downtown across the Potomac River. Washington Dulles International Airport (IAD) lies 42 km west of the city center in Virginia. Baltimore/Washington International Thurgood Marshall Airport (BWI) is 50 km northeast in Maryland. Transport options include Metro rail, commuter trains, express buses, taxis, ride-hailing services, and private transfers. Journey times and costs vary depending on the airport, time of day, and traffic conditions.

How to get from Ronald Reagan Washington National Airport (DCA) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

15-20 min

$2 – $6; varies by destination and time of day

every 8–12 min (traffic dependent)

fastest and most affordable

15-30 min

$15 – $25; metered; varies by traffic

on-demand 24/7 (traffic dependent)

door-to-door convenience

How to get from Washington Dulles International Airport (IAD) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

45-60 min

$6; flat fare to downtown

every 8–15 min (traffic dependent)

budget travelers

20-30 min

$5; to Wiehle-Reston East Metro

every 20 min (traffic dependent)

connecting to Metro

45-75 min

$65 – $85; metered; varies by traffic

on-demand 24/7 (traffic dependent)

groups with luggage

How to get from Baltimore/Washington International Thurgood Marshall Airport (BWI) to Washington, D.C.?

Transport Option

Typical Time

Typical Cost

Frequency

Best For

35-45 min

$8; one-way fare

hourly weekdays (traffic dependent)

commuters to Union Station

30-40 min

$15 – $50; varies by train type and booking time

multiple daily (traffic dependent)

comfort and speed

50-90 min

$90 – $110; metered; varies by traffic

on-demand 24/7 (traffic dependent)

late night arrivals

Notes:

  • Prices in USD; table created in 2025 and subject to change.
  • Metro fares vary by distance and time of day; use SmarTrip card for best rates.
  • MARC trains operate primarily on weekdays with limited weekend service.
  • Taxi and ride-hailing prices vary with demand and traffic conditions.
  • We recommend checking official transport websites for your travel planning.

Updated: December 2025

Key info about flying to Washington, D.C.

Depart from
Samui
Arrive to
Washington Dulles International
Average flights per week
400
Flight distance
Worth visiting
Lincoln Memorial - National Mall

Check-in for a flight from Ko Samui to Washington, D.C.

NameCarrier codeIATA CodePassport needed during booking
Bangkok AirwaysBKPPGNo
Alaska AirlinesASAASNo
Starlux AirlinesSJXJXNo
JetBlue AirwaysJBUB6No
Qatar AirwaysQTRQRYes

Online check-in is not available for these airlines.

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-2°C
February7°C0°C
March13°C3°C
April19°C8°C
May23°C13°C
June29°C18°C
July32°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C5°C
December8°C1°C
Hottest Month
32°C
July
Coldest month
-2°C
January
Sunny days
266
days per year
Snow days
8
days per year

14 day forecast

Sunday
14 Jun
36%
36°C21°C
21 Jun
25°C14°C
Monday
15 Jun
36%
27°C17°C
22 Jun
18%
22°C15°C
Tuesday
16 Jun
36%
29°C14°C
23 Jun
69%
24°C16°C
Wednesday
17 Jun
57%
32°C18°C
24 Jun
24%
25°C17°C
Thursday
18 Jun
57%
35°C20°C
25 Jun
73%
22°C19°C
Friday
19 Jun
78%
28°C20°C
26 Jun
36%
30°C19°C
Saturday
20 Jun
30°C16°C
27 Jun
32°C18°C
Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The most popular airlines for this route are Bangkok Airways, Alaska Airlines, Starlux Airlines, JetBlue Airways, and Qatar Airways. Ko Samui and Washington, D.C. have 400 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.

Frequently asked questions

What are the most popular routes to and from Ko Samui?
Travelers frequently search for route combinations, such as Ko Samui and London, Bangkok, Phuket City, Bali, Phuket Province, Denpasar, Singapore, Manchester, Chiang Mai, Hanoi, Kuala Lumpur, Ho Chi Minh City, Belfast, Krabi, Tel Aviv, Da Nang, Tokyo, Siem Reap, Perth, Manila.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and London, Manchester, Atlanta, Los Angeles, Orlando, Edinburgh, Glasgow, Mexico City, Dallas, Aberdeen, Tampa, Toronto, San Francisco, Denver, Boston, Houston, San Salvador, Lima, Miami, Las Vegas.
What airports are near Ko Samui?
The main airport in Ko Samui is Samui. It is also served by Samui, Surat Thani International, Nakhon Si Thammarat.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Atlantic City International, Richmond International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Hagerstown Regional, Salisbury–Ocean City–Wicomico Regional, Altoona–Blair County.
Which airlines fly between Ko Samui and Washington, D.C.?
Currently, you can fly between Ko Samui and Washington, D.C. with Bangkok Airways, Alaska Airlines, Starlux Airlines, JetBlue Airways, Qatar Airways.
When’s the best time to travel between Ko Samui and Washington, D.C.?
If you don’t have specific dates for your trip between Ko Samui and Washington, D.C., you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between Ko Samui and Washington, D.C.?
Traveling between Ko Samui and Washington, D.C., you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near Ko Samui?
There are a number of airports in and around Ko Samui. The main one is Samui and other nearby airports include Samui, Surat Thani International, Nakhon Si Thammarat
How many airports are there near Washington, D.C.?
There are a number of airports in and around Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Atlantic City International, Richmond International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Hagerstown Regional, Salisbury–Ocean City–Wicomico Regional, Altoona–Blair County.
What time do nonstop (direct) flights between Ko Samui and Washington, D.C. depart?
What time do nonstop (direct) flights between Ko Samui and Washington, D.C. arrive?
What time do flights between Ko Samui and Washington, D.C. depart?
What time do flights between Ko Samui and Washington, D.C. arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.

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