$1,328+ Cheap flights from District of Columbia to Ko Samui (USM)
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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from District of Columbia to Ko 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 District of Columbia to Ko Samui
Keep the following information in mind while searching for District of Columbia to Ko Samui flight deals. Data was last updated March 5, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,328 (FlightHub) |
Find flight deals from District of Columbia to Ko Samui
Cheapest flights from District of Columbia to Ko SamuiExplore the most affordable flight options available from District of Columbia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 5, 2025.
Explore the most affordable flight options available from District of Columbia to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 5, 2025.
This FlightHub deal was found by Cheapflights users on 3/5. 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.
This oojo deal was found by Cheapflights users on 3/4. 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.
This FlightHub deal was found by Cheapflights users on 3/4. 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.
This Gotogate deal was found by Cheapflights users on 3/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gurufare deal was found by Cheapflights users on 3/4. 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.
This Emirates deal was found by Cheapflights users on 3/4. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KAYAK deal was found by Cheapflights users on 3/4. 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.
This Gurufare deal was found by Cheapflights users on 3/4. 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.
This Booking.com deal was found by Cheapflights users on 3/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This SWISS deal was found by Cheapflights users on 3/5. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from District of Columbia to Ko Samui within your budget
Customize your flight search to find flights from District of Columbia 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 March 5, 2025.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Sat 5/3
9:40 pm-10:10 am
2 stops25h 30m
Ko Samui
Sun 5/11
7:30 pm-10:45 am
2 stops26h 15m
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Fri 3/21
11:35 am-6:15 pm
2 stops43h 40m
Ko Samui
Sun 3/30
4:25 pm-3:40 pm
2 stops58h 15m
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Thu 4/17
10:05 pm-6:15 pm
2 stops33h 10m
Ko Samui
Thu 4/24
7:30 pm-4:10 pm
2 stops31h 40m
Washington, D.C.Ko Samui
DCA - USM
DCAUSM
Washington, D.C. Reagan-National
Wed 8/27
9:30 am-6:15 pm
2 stops45h 45m
Ko Samui
Tue 9/2
1:30 pm-8:55 pm
2 stops42h 25m
Washington, D.C.Ko Samui
DCA - USM
DCAUSM
Washington, D.C. Reagan-National
Thu 4/17
11:54 am-6:35 pm
2 stops43h 41m
Ko Samui
Thu 4/24
10:55 am-9:29 am
2 stops33h 34m
Washington, D.C.Ko Samui
DCA - USM
DCAUSM
Washington, D.C. Reagan-National
Thu 4/17
6:59 am-8:45 pm
3 stops26h 46m
Ko Samui
Thu 4/24
9:10 pm-10:28 pm
3 stops36h 18m
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Sat 4/19
8:45 pm-9:10 pm
2 stops37h 25m
Ko Samui
Sat 4/26
9:15 am-4:15 pm
2 stops42h 00m
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Sat 5/17
8:30 pm-2:55 pm
3 stops55h 25m
Washington, D.C.Ko Samui
IAD - USM
IADUSM
Washington, D.C. Dulles Intl
Fri 5/16
12:30 pm-10:10 am
2 stops34h 40m
Washington, D.C.Ko Samui
DCA - USM
DCAUSM
Washington, D.C. Reagan-National
Sat 5/17
11:59 am-6:35 pm
2 stops43h 36m
Best time to book a flight from District of Columbia to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from District of Columbia with our price prediction graph.
Travel insights for flights from District of Columbia to Ko Samui
Get recent, data-driven insights about flights from District of Columbia to Ko Samui including ideal travel times, pricing trends, and more.
What is the cheapest time of day to fly from DC to USM?
Find hourly flight availability from District of Columbia 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 March 5, 2025.
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 Ko Samui as you normally would.
Rainfall in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko 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 Ko Samui when rainfall is around 2.3 in.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko 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 Ko Samui
Get insights into the airlines that provide service to Ko 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 Ko Samui. Reviews last updated March 5, 2025.
Overall
Entertainment
Crew
Boarding
Comfort
Food
Reviews
Ketan,Nov 2024
SEA - SIN
Overall
Entertainment
Crew
Boarding
Comfort
Food
Reviews
Ketan,Nov 2024
SEA - SIN
Overall
Entertainment
Crew
Boarding
Comfort
Food
Reviews
Ketan,Nov 2024
SEA - SIN
Overall
Entertainment
Crew
Boarding
Comfort
Food
Reviews
Ketan,Nov 2024
SEA - SIN
Overall
Entertainment
Crew
Boarding
Comfort
Food
Reviews
Ketan,Nov 2024
SEA - SIN