$388 Find Cheap Flights from Seattle to Thailand - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Thailand departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Seattle to Thailand

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok1 stop$760
Phuket City
Phuket City1 stop$678
Chiang Mai
Chiang Mai1 stop$840
Ko Samui
Ko Samui1 stop$826
Krabi
Krabi2 stops$963
Bangkok
Bangkok1 stop$760
Phuket City
Phuket City1 stop$678
Chiang Mai
Chiang Mai1 stop$840
Ko Samui
Ko Samui1 stop$826
Krabi
Krabi2 stops$963

Book Cheap Seattle to Thailand Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Thailand 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.

Recent round-trip flight deals from Seattle to Thailand

Tue, Oct 20 - Fri, Oct 30
Singapore Airlines Logo
10:15 am - 7:50 pm
SEA
-
HKT
19h 35m
1 stop
Singapore Airlines Logo
10:05 am - 8:10 am
HKT
-
SEA
36h 05m
1 stop
$678Singapore Airlines
Tue, Oct 20 - Fri, Oct 30
Singapore Airlines Logo
10:15 am - 7:50 pm
SEA
-
HKT
19h 35m
1 stop
Singapore Airlines Logo
10:05 am - 8:10 am
HKT
-
SEA
36h 05m
1 stop
$680Singapore Airlines
Sun, Sep 6 - Mon, Sep 14
China Airlines Logo
1:55 am - 9:45 am
SEA
-
BKK
17h 50m
1 stop
China Airlines Logo
5:30 pm - 7:45 pm
BKK
-
SEA
16h 15m
1 stop
$787China Airlines
Tue, Sep 8 - Mon, Sep 14
Hainan Airlines Logo
11:00 am - 11:00 pm
SEA
-
BKK
22h 00m
1 stop
Hainan Airlines Logo
12:25 am - 9:00 am
BKK
-
SEA
22h 35m
1 stop
$798Hainan Airlines
Mon, Aug 17 - Tue, Sep 1
Korean Air Logo
1:20 pm - 9:45 pm
SEA
-
BKK
18h 25m
1 stop
Korean Air Logo
11:30 pm - 10:40 am
BKK
-
SEA
25h 10m
1 stop
$809Korean Air
Tue, Sep 8 - Mon, Sep 14
Hainan Airlines Logo
11:00 am - 11:00 pm
SEA
-
BKK
22h 00m
1 stop
Hainan Airlines Logo
12:25 am - 9:00 am
BKK
-
SEA
22h 35m
1 stop
$809Hainan Airlines
Mon, Aug 24 - Mon, Sep 14
China Airlines Logo
1:55 am - 4:20 pm
SEA
-
BKK
24h 25m
1 stop
China Airlines Logo
1:20 pm - 7:45 pm
BKK
-
SEA
20h 25m
1 stop
$810China Airlines
Tue, Aug 25 - Mon, Nov 2
Air Canada Logo
10:40 am - 11:55 pm
SEA
-
BKK
23h 15m
2 stops
Air Canada Logo
8:25 am - 2:37 pm
BKK
-
SEA
21h 12m
1 stop
$812Air Canada
Mon, Aug 24 - Wed, Sep 23
Air Canada Logo
7:20 pm - 5:05 am
SEA
-
BKK
19h 45m
1 stop
Air Canada Logo
7:05 am - 6:32 pm
BKK
-
SEA
25h 27m
1 stop
$812Air Canada
Mon, Sep 7 - Mon, Sep 14
Korean Air Logo
12:50 pm - 9:45 pm
SEA
-
BKK
18h 55m
1 stop
Korean Air Logo
9:50 am - 9:54 pm
BKK
-
SEA
26h 04m
2 stops
$818Korean Air
Booking Insights

KAYAK's insights & trends for Seattle to Thailand flights

Get data-powered insights and trends into flights from Seattle to Thailand to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Thailand?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Thailand, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Thailand is March, when tickets cost $750 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,252 and $1,238 respectively.

How far in advance should I book a flight from Seattle to Thailand?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Thailand, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Thailand, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

May

Cheapest flight

$388
Most popular time to fly with an average 39% increase in price.
Flight from Seattle to Chiang Mai

FAQs - booking Thailand flights

  • Are there onsite hotels at Bangkok Airports?

    There are multiple onsite hotels in both Bangkok airports where you can spend some quality time during a layover or spend the night if you are landing late. If you are landing at BKK, you can consider making reservations at the Novotel Suvarnabhumi Airport Hotel, which is a 5-minute walk from the airport. On the other hand, at DMK, you can spend thenight at Sleep Box by Miracle, situated in terminal 2.

  • Which is the most ideal ground transportation in Bangkok?

    When you land in Bangkok, you should opt for car rental services if you want the freedom to explore the city. DMK has multiple car rental agencies such as SIXT, Budget, Hertz, Avis, National and Chic. The car rental booths are located in terminals 1 and 2 DMK. On the other hand, at BKK, you will find rental car agencies, including Europcar, Hertz, Avis, Chic, National, Bizcar and Thai, located in Gate 8 near the passenger terminal 8.

  • Are there any family services at SEA?

    SEA offers exceptional family services that parents or guardians flying through the airport can take advantage of with their kids. The airport features a kids’ play area located between Gate A and the central terminal. Nursing mothers can also access private nursing rooms at the airport’s main terminal.

  • What amenities and services can I have access to at SEA?

    While at SEA, you can enjoy a live music performance from Experience the City Music. Alternatively, you can explore the impressive and eclectic collection of modern sculpture, painting, glass, photography and sound art.

  • How does KAYAK find such low prices on flights from Seattle to Thailand?

    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 Seattle to Thailand.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Thailand?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Thailand 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 Seattle to Thailand?

    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 from Seattle to Thailand with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Thailand?

    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 from Seattle to Thailand up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Thailand

  • If you are flying from Seattle to Thailand, ensure that you arrive at the airport at least 3 hours before your scheduled flight departure time. As such, you will have enough time to go through the immigration, get your boarding pass and arrive at your departure terminal without risking missing your flight. Alternatively, you can check in online through your airline website.
  • Seattle Tacoma International Airport (SEA) has several parking options for passengers who wish to leave their cars at the airport while flying from Seattle to Thailand. The airport features both onsite and offsite parking lots. Therefore, you can opt for the offsite parking lot, which is more affordable than the onsite parking lots, if you plan on an extended stay. The onsite parking lots are located at the terminal direct on the upper floors.
  • Upon your arrival at Suvarnabhumi International Airport (BKK) and looking for specific information, you don’t need to worry. The airport features multiple information booths with friendly staff that are always ready to assist. The information desks are located in the arrivals and departure areas.
  • Don Mueang International Airport (DMK) is equipped with shower facilities that passengers using the airport can utilize after a long flight from Seattle. The shower amenities are located in Miracle Lounge in the Domestic departures terminal 2. Charges may apply, so ensure that you confirm with the management before using the amenities.
  • SEA offers unique services for passengers with reduced mobility. If you are flying through the airport, you can have access to wheelchair services and extra assistance. However, for easy access to these services, you need to call your airline prior to your flight date, informing them of what you might need. On the other hand, DMK and BKK have wheelchair-accessible washrooms, parking lots and elevators.

Everything you need to know for your flight from Seattle to Thailand

Information on your arrival and departure airports