$470 Find Cheap Flights from Thailand to Seattle - 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 to Seattle departing on 11/19. 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 Thailand to Seattle

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

Sat, Sep 12 - Sun, Sep 20
Korean Air Logo
2:35 am - 10:40 am
BKK
-
SEA
22h 05m
1 stop
Korean Air Logo
12:50 pm - 9:45 pm
SEA
-
BKK
18h 55m
1 stop
$759Korean Air
Wed, Sep 9 - Fri, Sep 18
Korean Air Logo
2:35 am - 10:40 am
BKK
-
SEA
22h 05m
1 stop
Korean Air Logo
12:50 pm - 9:45 pm
SEA
-
BKK
18h 55m
1 stop
$761Korean Air
Tue, Oct 20 - Tue, Oct 27
Asiana Airlines Logo
11:45 am - 3:15 pm
BKK
-
SEA
17h 30m
1 stop
Asiana Airlines Logo
12:10 am - 11:15 am
SEA
-
BKK
21h 05m
1 stop
$767Asiana Airlines
Tue, Oct 20 - Tue, Oct 27
Asiana Airlines Logo
11:45 am - 3:15 pm
BKK
-
SEA
17h 30m
1 stop
Asiana Airlines Logo
12:10 am - 11:15 am
SEA
-
BKK
21h 05m
1 stop
$773Asiana Airlines
Wed, Aug 26 - Wed, Sep 9
Delta Logo
2:35 am - 1:37 pm
BKK
-
SEA
25h 02m
1 stop
Delta Logo
1:00 pm - 1:05 am
SEA
-
BKK
22h 05m
1 stop
$774Delta
Fri, Dec 11 - Thu, Dec 31
Delta Logo
9:40 am - 11:56 am
BKK
-
SEA
17h 16m
1 stop
Delta Logo
1:00 pm - 1:25 pm
SEA
-
BKK
33h 25m
1 stop
$778Delta
Mon, Sep 14 - Sat, Oct 31
China Airlines Logo
2:40 am - 7:45 pm
BKK
-
SEA
31h 05m
1 stop
China Airlines Logo
1:10 am - 1:35 am
SEA
-
BKK
34h 25m
1 stop
$795China Airlines
Mon, Oct 26 - Mon, Oct 26
China Airlines Logo
2:05 pm - 7:10 pm
BKK
-
SEA
19h 05m
1 stop
China Airlines Logo
1:10 am - 1:05 pm
SEA
-
BKK
21h 55m
1 stop
$798China Airlines
Tue, Aug 25 - Mon, Aug 31
STARLUX Airlines Logo
5:50 pm - 4:35 pm
BKK
-
SEA
36h 45m
1 stop
STARLUX Airlines Logo
1:15 am - 12:00 pm
SEA
-
BKK
20h 45m
1 stop
$814STARLUX Airlines
Wed, Sep 9 - Tue, Sep 15
STARLUX Airlines Logo
1:10 pm - 4:10 pm
BKK
-
SEA
17h 00m
1 stop
STARLUX Airlines Logo
1:15 am - 12:00 pm
SEA
-
BKK
20h 45m
1 stop
$836STARLUX Airlines
Booking Insights

KAYAK's insights & trends for flights to Seattle

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

What is the cheapest flight to Seattle?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Seattle was found on the route from Chiang Mai, at $759 return. The most popular connection is from Bangkok to Seattle and KAYAK users have found round-trip deals for as low as $759 in the last 5 days.

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Seattle, 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 to Seattle is March, where tickets cost $742 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from Thailand is $1,005 and $915 respectively. For one-way flights, the best month to travel is September with an average price of $488.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, 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, you should book around 3 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Find deals

Good to know

Low season

May

Cheapest flight

$470
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Chiang Mai to Seattle

FAQs - booking Seattle flights

  • What is the cheapest flight to Seattle?

    In the last 5 days, the cheapest flight deal to Seattle was found on the route from Chiang Mai, at $759 return. The most popular connection is from Bangkok to Seattle and KAYAK users have found round-trip deals for as low as $759 in the last 5 days.

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    Seattle/Tacoma Intl Airport is 11 miles from the center of Seattle.

  • What is the name of Seattle’s airport?

    All flights to Seattle land at Seattle/Tacoma Intl Airport. The airport code is SEA,and it can also be referred to as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

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

    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 to Seattle.

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

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

  • What is the Hacker Fare option on flights to Seattle?

    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 Seattle 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 to Seattle?

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

  • How many direct flights to Seattle are there each week?

    Each week there are around 13,435 direct flights from within Thailand to Seattle. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Seattle (SEA)