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Flights from Bangkok to Seattle
What to know about flights from Bangkok to Seattle?
The distance between Bangkok and Seattle is approximately 11,996.18 km. Based on Trip.com's data, travel demand peaks in July. The cheapest month to book is October.
Cheapest one-way
$457
Korean Air
BKK-SEA
38h 50m · 1 stop
Sat, Oct 3
Cheapest round-trip
$764
Korean Air
BKK-SEA
22h 5m · 2 stops
Wed, Sep 23 - Sat, Sep 26
Recommended airlines
When to travel
August
Cheapest
July
Peak season for travel
Route details
11,996.18 km
Flight distance
How can I find cheap flights from Bangkok to Seattle?
Explore the cheapest one-way and round-trip flights from Bangkok to Seattle over the next 90 days, with one-way fares from $457 and round-trip from $764. Based on Trip.com's latest 7-day flight data.
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One way
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Round-trip
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BKK 2:35 AM22h 5m1 stopSEA 10:40 AMBangkok - Seattle | Wed, Sep 23 | Korean Air
SEA 12:50 PM22h 15m1 stopBKK 1:05 AMSeattle - Bangkok | Sat, Sep 26 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outlet$764 $1,06528% off28% off$1,065 $764 -
BKK 1:05 AM23h1 stopSEA 9:05 AMBangkok - Seattle | Tue, Nov 3 | Korean Air
SEA 11:00 AM19h 30m1 stopBKK 9:30 PMSeattle - Bangkok | Tue, Nov 10 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$765 $1,06528% off28% off$1,065 $765
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BKK 2:35 AM22h 5m1 stopSEA 10:40 AMBangkok - Seattle | Fri, Sep 11 | Korean Air
SEA 12:50 PM18h 55m1 stopBKK 9:45 PMSeattle - Bangkok | Tue, Sep 15 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$767 $1,06528% off28% off$1,065 $767
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BKK 2:35 AM22h 5m1 stopSEA 10:40 AMBangkok - Seattle | Tue, Sep 22 | Korean Air
SEA 12:50 PM34h 45m1 stopBKK 1:35 PMSeattle - Bangkok | Fri, Sep 25 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$76728% off$1,065 $767
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BKK 9:50 AM17h 47m1 stopSEA 1:37 PMBangkok - Seattle | Tue, Sep 22 | Delta Air Lines
SEA 1:00 PM20h 35m1 stopBKK 11:35 PMSeattle - Bangkok | Fri, Sep 25 | Delta Air Lines
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$76728% off$1,065 $767 -
BKK 2:35 AM22h 5m1 stopSEA 10:40 AMBangkok - Seattle | Tue, Oct 20 | Korean Air
SEA 12:00 PM19h 30m1 stopBKK 9:30 PMSeattle - Bangkok | Tue, Oct 27 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outlet$76728% off$1,065 $767
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BKK 11:30 PM25h 10m1 stopSEA 10:40 AMBangkok - Seattle | Fri, Sep 25 | Korean Air
SEA 12:50 PM18h 55m1 stopBKK 9:45 PMSeattle - Bangkok | Sun, Sep 27 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$77427% off$1,065 $774
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BKK 11:30 PM25h 10m1 stopSEA 10:40 AMBangkok - Seattle | Fri, Oct 16 | Korean Air
SEA 12:50 PM22h 15m1 stopBKK 1:05 AMSeattle - Bangkok | Sun, Oct 18 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outlet$77527% off$1,065 $775
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BKK 1:05 AM23h1 stopSEA 10:05 AMBangkok - Seattle | Sat, Oct 31 | Korean Air
SEA 11:00 AM21h 5m1 stopBKK 11:05 PMSeattle - Bangkok | Sat, Nov 7 | Korean Air
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableWi-Fi (additional charge)USB port and power outlet$77527% off$1,065 $775
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BKK 11:55 PM29h1 stopSEA 1:55 PMBangkok - Seattle | Sat, Oct 31 | Asiana Airlines
SEA 12:10 AM30h 50m1 stopBKK 10:00 PMSeattle - Bangkok | Sat, Nov 7 | Asiana Airlines
Price detailsDepartureBKK-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletReturnSEA-ICNEconomy class
Included
In-flight meals are availableUSB port and power outletICN-BKKEconomy class
Included
In-flight meals are availableUSB port and power outlet$77727% off$1,065 $777 -
BKK 1:00 PM17h 25m1 stopSEA 2:00 PMBangkok - Seattle | Tue, Sep 8 | Normal Airline
SEA 3:00 PM6hNonstopBKK 4:00 PMSeattle - Bangkok | Thu, Sep 10 | Normal AirlineFind more flightsFind more flights
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BKK 9:50 AM38h 50m1 stopSEA 10:40 AMBangkok - Seattle | Sat, Oct 3 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$457 $62727% off27% off$627 $457
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BKK 9:40 PM27h1 stopSEA 10:40 AMBangkok - Seattle | Mon, Oct 5 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$457 $62727% off27% off$627 $457
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BKK 9:50 AM38h 50m1 stopSEA 10:40 AMBangkok - Seattle | Tue, Oct 6 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$457 $62727% off27% off$627 $457
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BKK 9:50 AM38h 15m1 stopSEA 10:05 AMBangkok - Seattle | Thu, Oct 29 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 9:40 PM27h1 stopSEA 10:40 AMBangkok - Seattle | Wed, Oct 21 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 9:50 AM38h 50m1 stopSEA 10:40 AMBangkok - Seattle | Tue, Oct 20 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 9:50 AM38h 50m1 stopSEA 10:40 AMBangkok - Seattle | Thu, Oct 15 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 9:50 AM38h 50m1 stopSEA 10:40 AMBangkok - Seattle | Sun, Oct 11 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 9:40 PM26h 25m1 stopSEA 10:05 AMBangkok - Seattle | Fri, Oct 30 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableUSB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 1:05 AM23h1 stopSEA 10:05 AMBangkok - Seattle | Sat, Oct 31 | Korean Air
Price detailsBKK-ICNEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outletICN-SEAEconomy classIn-flight meals are availableWi-Fi (additional charge)USB port and power outlet$45727% off$627 $457
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BKK 1:00 PM17h 25m1 stopSEA 2:00 PMBangkok - Seattle | Tue, Sep 8 | Normal AirlineFind more flightsFind more flights
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Which airlines are the most popular for Bangkok to Seattle flights?
The most popular airlines flying from Bangkok to Seattle are STARLUX Airlines, China Airlines, and Korean Air, among 12 carriers on this route. Korean Air offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
STARLUX Airlines
China Airlines
Korean Air
Thai Vietjet Air
Asiana Airlines
Delta Air Lines
EVA Air
All Nippon Airways
Thai Airways
Philippine Airlines
Cathay Pacific
Japan Airlines
Airlines are determined based on actual purchased flight tickets from Bangkok to Seattle according to previous 12 months data from Trip.com.
Trip.com price insights on flights from Bangkok to Seattle
Which month has the cheapest one-way flights from Bangkok to Seattle?
Based on Trip.com’s data, the cheapest month for flights from Bangkok to Seattle is August, with an average price of $426; while the month with the highest flight price is usually July, with an average price of up to $722.
$722
$574
$426
$278
When is the cheapest day to fly from Bangkok to Seattle during Labor Day?
Labor Day is scheduled for Sep 7. The cheapest flights from Bangkok to Seattle are available on Sep 8, with fares starting at $471.
$539
$505
$471
$437
Frequently Asked Questions
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What are the cheapest flights from Bangkok to Seattle (BKK-SEA)?
Based on Trip.com data, Korean Air offers one-way fares as low as $457 on Cheapest nonstop routes (e.g. BKK to SEA on Sat, Oct 3), while Korean Air offers Cheapest nonstop round-trips from $764 departing on Wed, Sep 23 and returning on Sat, Sep 26. -
Which airlines offer direct flights from Bangkok to Seattle?
At the moment, you can catch a nonstop flight from Bangkok to Seattle with the following airlines, including: Thai Vietjet Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days. -
When is the best time to book flights from Bangkok to Seattle?
By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Bangkok to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals. -
How can I find the best deals on flights from Bangkok to Seattle?
To find best deals on flights from Bangkok to Seattle, you can use various tools on Trip.com:
· Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Oct 3, with one-way flights priced at just $457.
· Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Korean Air.
· Set up price alerts to easily monitor ticket prices without having to check every day.
· Check Trip.com flight deals and promo codes frequently.
· Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
· Get exclusive promo codes for Trip.com app users. -
When are flight tickets from Bangkok (BKK) to Seattle (SEA) the cheapest?
The cheapest months to fly from Bangkok to Seattle is October, when demand for travel is lower. -
Which upcoming date is cheapest to fly from Bangkok to Seattle on?
After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Bangkok to Seattle on September 6, 2026 with Qatar Airways, with prices starting at $406. -
Which airports can I fly into Seattle from Bangkok?
You can arrive at any of the following airports in Seattle: Seattle-Tacoma International Airport (SEA), King County (Boeing Field) International Airport (BFI), and Kenmore Air Harbor Seaplane Base (LKE). Flights from Suvarnabhumi Airport to Seattle-Tacoma International Airport (BKK-SEA) are by far the most popular option for this route. -
Is there any time difference between Bangkok and Seattle?
The time difference between Seattle and Bangkok is 15h. -
How do I change or cancel my ticket from Bangkok to Seattle?
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages. -
What is the average cost of a one-way flight from Bangkok to Seattle?
Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Bangkok to Seattle is $627. Fares vary by travel date, airline and availability. -
How do I book flights from Bangkok to Seattle on Trip.com?
Enter Bangkok and Seattle, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation. -
Are there budget airlines on the Bangkok to Seattle route?
Thai Vietjet Airare the most popular budget airlines flying from Bangkok to Seattle. Check baggage, seat and payment fees before comparing the final price.
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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.