$565+ Cheap flights from Washington 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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Washington 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 Washington to Koh Samui
Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) 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 18, 2024.
Round-trip from | $960 (FlightHub) |
|---|---|
One-way from | $565 (Trip.com) |
Find flight deals from Washington to Koh Samui
Best flights from Washington to Koh SamuiDiscover carefully curated flight deals from Washington to Koh Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.
Discover carefully curated flight deals from Washington to Koh Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.
This FlightHub deal was found by Cheapflights users on 12/18. 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 Trip.com deal was found by Cheapflights users on 12/17. 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 Trip.com 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 12/16. 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 Kissandfly.com deal was found by Cheapflights users on 12/18. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Qatar Airways deal was found by Cheapflights users on 12/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ovago deal was found by Cheapflights users on 12/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair 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 12/17. 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.
Find flights from Washington to Koh Samui within your budget
Customize your flight search to find flights from Washington 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 2,558,603 searches. Data last updated December 18, 2024.
Fly from
Fly to
Route
Depart
Return
Price
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Thu 2/13
8:40 am-8:00 am
1 stop32h 20m
Ko Samui
Fri 3/14
8:55 am-8:10 am
1 stop37h 15m
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Sun 1/19
3:45 pm-8:45 pm
2 stops38h 00m
Ko Samui
Sun 1/26
8:20 am-1:20 pm
2 stops44h 00m
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Sat 1/18
12:10 am-5:10 pm
2 stops26h 00m
Ko Samui
Sun 1/26
9:30 pm-6:10 pm
2 stops35h 40m
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Sat 2/1
3:25 pm-7:35 pm
2 stops37h 10m
Ko Samui
Sat 2/8
4:25 pm-1:32 pm
2 stops36h 07m
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Sun 4/6
4:30 pm-10:30 am
2 stops28h 00m
Ko Samui
Sat 4/12
5:55 pm-12:30 pm
2 stops32h 35m
PortlandKoh Samui
PDX - USM
PDXUSM
Portland
Wed 3/26
7:05 pm-8:40 am
2 stops23h 35m
Ko Samui
Wed 4/9
1:30 pm-2:44 pm
2 stops39h 14m
PortlandKoh Samui
PDX - USM
PDXUSM
Portland
Wed 3/26
11:36 am-10:40 am
3 stops33h 04m
Ko Samui
Wed 4/9
9:10 pm-7:22 pm
3 stops36h 12m
PortlandKoh Samui
PDX - USM
PDXUSM
Portland
Thu 1/16
5:26 pm-7:35 pm
2 stops35h 09m
Ko Samui
Fri 1/24
11:40 am-7:54 pm
2 stops47h 14m
PortlandKoh Samui
PDX - USM
PDXUSM
Portland
Wed 3/26
7:00 am-6:15 pm
3 stops45h 15m
Ko Samui
Wed 4/9
1:30 pm-5:05 pm
2 stops41h 35m
SeattleKoh Samui
SEA - USM
SEAUSM
Seattle/Tacoma Intl
Fri 1/31
12:45 pm-7:40 am
2 stops27h 55m
Best time to book a flight from Washington to Koh Samui
Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Washington with our price prediction graph.
Travel insights for flights from Washington to Koh Samui
Get recent, data-driven insights about flights from Washington to Koh Samui including ideal travel times, pricing trends, and more.
What is the cheapest time of day to fly from WA to USM?
Find hourly flight availability from Washington to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.
When flying from State of Washington to Koh Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 18, 2024.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Comfort
Entertainment
Overall
Boarding
Crew
Food
Reviews
The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.
Related info for your journey
Find useful and relevant information for your journey from Washington to Koh Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 Washington to Koh Samui
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Washington to Koh Samui
Discover the top airline that operate flights from Washington 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 2,558,603 searches. Data last updated December 18, 2024.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,057 | Average$1,417 | FlexibilityNo cancel fee | On-time74% |