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Cheap flights from Bangkok to Seattle from ฿13,663

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEA
5 Jul — 12 Jul1
1 adult

Cheapflights Tip: The best prices from Bangkok to Seattle/Tacoma Intl are usually found in November or February, booked 40 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap flight deals from Bangkok to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Seattle (SEA). 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 30 June 2025.

Round-trip from

฿22,219

One-way from

฿13,663

Popular in

August

Cheapest in

November

Average price

฿31,393
11/8-19/8
  • 11/8-19/8
  • 2 total stops
  • 43h 05m total
  • Bangkok to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 17/7
  • 1 total stop
  • 33h 55m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿120,106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿18,804 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Bangkok to Seattle

Cheapest flights from Bangkok to Seattle
Explore the most affordable flight options available from Bangkok to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2025.

Mon 11/802:35BKK - SEA
1 stop24h 10mMultiple Airlines
Tue 19/814:30SEA - BKK
1 stop18h 55mMultiple Airlines
Deal found 28/6฿22,219
Sun 14/1213:30BKK - SEA
1 stop21h 05mPhilippine Airlines
Fri 2/123:55SEA - BKK
1 stop30h 55mPhilippine Airlines
Deal found 29/6฿22,414
Fri 19/917:50BKK - SEA
1 stop36h 20mSTARLUX Airlines
Mon 6/1001:15SEA - BKK
1 stop25h 25mSTARLUX Airlines
Deal found 30/6฿25,277
Mon 15/902:40BKK - SEA
1 stop30h 40mChina Airlines
Tue 7/1001:10SEA - BKK
1 stop21h 00mChina Airlines
Deal found 28/6฿26,286
Tue 14/1002:35BKK - SEA
1 stop22h 05mKorean Air
Sun 23/1111:00SEA - BKK
1 stop21h 20mKorean Air
Deal found 28/6฿26,578
Sat 20/1221:30BKK - SEA
1 stop30h 50mเดลต้า
Mon 5/111:25SEA - BKK
1 stop22h 20mเดลต้า
Deal found 29/6฿27,359
Wed 15/1001:35BKK - SEA
1 stop31h 15mEVA Air
Sat 8/1123:30SEA - BKK
1 stop33h 10mEVA Air
Deal found 30/6฿27,424
Sun 13/706:40DMK - SEA
2 stops23h 55mMultiple Airlines
Wed 24/905:30SEA - DMK
2 stops26h 45mMultiple Airlines
Deal found 29/6฿35,720

Cheapflights Fare Finder

Customise your flight search to find flights from Bangkok to Seattle 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 17,341 searches. Data last updated 30 June 2025.
Use the filters below to find and compare flights from Bangkok to Seattle that are best for you.

Fly from

Bangkok

Fly to

Seattle

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 11/8

02:35-12:45

1 stop24h 10m

Seattle/Tacoma Intl

Tue 19/8

14:30-23:25

1 stop18h 55m

฿22,219

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 14/12

13:30-19:35

1 stop21h 05m

Seattle/Tacoma Intl

Fri 2/1

23:55-21:50

1 stop30h 55m

฿22,414

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 19/9

17:50-16:10

1 stop36h 20m

Seattle/Tacoma Intl

Mon 6/10

01:15-16:40

1 stop25h 25m

฿25,277

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 15/9

02:40-19:20

1 stop30h 40m

Seattle/Tacoma Intl

Tue 7/10

01:10-12:10

1 stop21h 00m

฿26,286

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/10

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Sun 23/11

11:00-23:20

1 stop21h 20m

฿26,578

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 20/12

21:30-13:20

1 stop30h 50m

Seattle/Tacoma Intl

Mon 5/1

11:25-00:45

1 stop22h 20m

฿27,359

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 15/10

01:35-18:50

1 stop31h 15m

Seattle/Tacoma Intl

Sat 8/11

23:30-23:40

1 stop33h 10m

฿27,424

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Sun 13/7

06:40-16:35

2 stops23h 55m

Seattle/Tacoma Intl

Wed 24/9

05:30-22:15

2 stops26h 45m

฿35,720

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 17/7

23:20-19:15

1 stop33h 55m

฿13,663

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Fri 31/10

11:20-08:10

2 stops34h 50m

฿15,127

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 16 results
1
2

Best time to book a flight from Bangkok to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bangkok with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bangkok to Seattle

How far ahead should I book a flight from Bangkok to Seattle?

Use this chart to determine the optimal time to book a return flight from Bangkok to Seattle. Price data was last updated on 27 June 2025.

The best time to book flights from Bangkok to Seattle is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest time of day to fly from BKK to SEA?

Find hourly flight availability from Bangkok to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 June 2025.

When flying from Bangkok to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 29% versus a flight in the afternoon.

What is the cheapest day to fly from Bangkok to Seattle?

Use this chart to determine the cheapest time to fly return from Bangkok to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Bangkok to Seattle flight should consider departing on Wednesday at midday when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 30 June 2025.
Read through reviews of airlines operating flights from Bangkok to Seattle, such as STARLUX Airlines, EVA Air, andKorean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very Good
1,210 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very Good
1,101 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very Good
745 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
เดลต้า
8.0
Very Good
7,969 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Crew

9.3

Entertainment

9.0

Food

8.8

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Find useful and relevant information for your journey from Bangkok to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Bangkok?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Bangkok. Booking flights from Bangkok to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Bangkok from 7 different airlines.

  • What are the cheapest airlines flying from Bangkok to Seattle round-trip?

    According to our current data, Philippine Airlines (฿22,414), STARLUX Airlines (฿25,277), and China Airlines (฿26,286) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Bangkok to Seattle one-way?

    One-way options have recently been found by users for as low as ฿13,663 on Philippine Airlines. Other airlines that offer cheap prices include STARLUX Airlines from ฿15,648 and China Airlines from ฿16,136 one-way.

  • Can I find deals for flights from Bangkok to Seattle that include hotel bookings?

    Yes. In addition to deals on Bangkok to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bangkok to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Seattle.

  • Can I find deals for business class flights from Bangkok to Seattle?

    Yes. Cheapflights offers flight deals from Bangkok to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 7 airlines flying from Bangkok to Seattle

Discover the top 7 airlines that operate flights from Bangkok to Seattle. 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 17,341 searches. Data last updated 30 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿18,731Average฿22,237FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿22,325Average฿26,662FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest฿26,186Average฿31,909FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
EVA AirCheapest฿26,525Average฿30,563FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
STARLUX AirlinesCheapest฿27,089Average฿29,165FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapest฿27,740Average฿30,327FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Japan AirlinesCheapest฿31,189Average฿39,566FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Bangkok to Seattle?

Deals for Bangkok to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Bangkok to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bangkok to Seattle.

Can Cheapflights find flights from Bangkok to Seattle with no change fees?

Yes, we can. To see specific flights from Bangkok to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Bangkok to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Bangkok to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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