How does KAYAK find such low prices on flights from Washington to Ko Samui?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ko Samui. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ko Samui?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Ko Samui?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ko Samui?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$818 CHEAP FLIGHTS from Washington to Ko Samui

USM

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Flights Deals

Cheap Flights from Washington to Ko Samui

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Ko Samui that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Washington to Ko Samui

Thu, Oct 2 - Mon, Oct 13

10:15 am - 11:10 amSEA-USM

34h 55m1 stop

8:45 am - 8:45 amUSM-SEA

38h 00m1 stop

$818Singapore Airlines

Find Deal

Fri, Jan 16 - Sat, Jan 31

8:45 am - 8:00 amSEA-USM

32h 15m1 stop

11:45 am - 7:10 amUSM-SEA

34h 25m1 stop

$827Singapore Airlines

Find Deal

Thu, Oct 9 - Sun, Oct 19

12:30 am - 8:50 pmSEA-USM

30h 20m2 stops

8:50 pm - 7:30 pmUSM-SEA

36h 40m2 stops

$1,032EVA Air

Find Deal

Fri, Sep 12 - Fri, Sep 19

1:30 pm - 7:20 amSEA-USM

27h 50m2 stops

9:00 pm - 10:25 amUSM-SEA

27h 25m2 stops

$1,033

Find Deal

Thu, Jan 22 - Tue, Jan 27

7:00 pm - 9:20 amPDX-USM

23h 20m2 stops

8:30 pm - 9:15 amUSM-PDX

27h 45m2 stops

$1,052

Find Deal

Sat, Nov 29 - Thu, Dec 4

12:10 am - 3:35 pmSEA-USM

24h 25m2 stops

12:15 pm - 6:10 pmUSM-SEA

20h 55m2 stops

$1,104EVA Air

Find Deal

Sun, Nov 30 - Thu, Dec 4

4:05 pm - 5:30 pmSEA-USM

34h 25m2 stops

3:50 pm - 11:40 amUSM-SEA

34h 50m2 stops

$1,467Qatar Airways

Find Deal

Sat, Sep 20 - Tue, Sep 23

1:15 pm - 9:10 pmPDX-USM

41h 55m2 stops

10:55 am - 11:20 amUSM-PDX

38h 25m2 stops

$1,573KLM

Find Deal

Sat, Sep 20 - Tue, Sep 23

1:15 pm - 2:45 pmPDX-USM

35h 30m2 stops

10:55 am - 11:20 amUSM-PDX

38h 25m2 stops

$1,709KLM

Find Deal

Mon, Dec 22 - Tue, Dec 30

4:05 pm - 6:25 pmSEA-USM

35h 20m2 stops

3:50 pm - 11:40 amUSM-SEA

34h 50m2 stops

$1,848Qatar Airways

Find Deal

Useful Info

Low season	November
High season	June
Cheapest flight	$818

Best time to beat the crowds with an average 24% drop in price.

Most popular time to fly with an average 34% increase in price.

Flight from Seattle to Ko Samui

How does KAYAK find such low prices on flights from Washington to Ko Samui?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ko Samui.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ko Samui?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Ko Samui?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ko Samui?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ko Samui

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on the airport you'll fly into in Ko Samui

Ko Samui (USM)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

USM

$818 Find Cheap Flights from Washington to Ko Samui

KAYAK searches hundreds of travel sites at once for deals on flights to Ko Samui

Cheap Flights from Washington to Ko Samui

Recent round-trip flight deals from Washington to Ko Samui

Recent one-way flight deals from Washington to Ko Samui

Good to know

FAQs for booking flights from Washington to Ko Samui

How does KAYAK find such low prices on flights from Washington to Ko Samui?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ko Samui.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ko Samui?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ko Samui from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Ko Samui?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ko Samui with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ko Samui?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ko Samui from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ko Samui

Information on the airport you'll fly into in Ko Samui

Cabin class types available on flights to Washington

Complete your trip to Ko Samui with a hotel stay or car rental

Find direct flights for Ko Samui

Flights to other popular destinations

Flights from domestic origins to Ko Samui

Choose which airport to fly into in Ko Samui