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Cheap flights from Seattle to Bangkok Suvarnabhumi Airport from £322

SEA — BKK
29 Oct — 5 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Suvarnabhumi

Fri 9/1023:10 -
1 stop19h 45m
Mon 12/1019:30 -
1 stop38h 35m
Deal found 24/9£623
Sun 1/1121:30 -
1 stop34h 15m
Thu 5/1113:10 -
1 stop20h 35m
Deal found 27/9£628
Tue 17/1112:30 -
1 stop42h 00m
Wed 2/1221:40 -
1 stop29h 16m
Deal found 28/9£638
Tue 3/1112:30 -
1 stop42h 00m
Sun 22/1101:05 -
1 stop25h 46m
Deal found 25/9£639
Mon 2/1100:10 -
1 stop22h 15m
Wed 31/309:50 -
1 stop38h 50m
Deal found 23/9£641
Mon 9/1100:10 -
1 stop22h 15m
Wed 10/209:50 -
1 stop19h 20m
Deal found 24/9£642
Mon 16/1112:31 -
2 stops33h 54m
Wed 9/1223:15 -
1 stop24h 50m
Deal found 27/9£645
Tue 3/1112:20 -
2 stops32h 10m
Thu 12/1109:10 -
1 stop19h 10m
Deal found 28/9£646
Sun 29/1100:10 -
1 stop18h 40m
Mon 1/310:55 -
1 stop22h 15m
Deal found 24/9£647
Tue 17/1106:00 -
2 stops27h 20m
Tue 15/1209:10 -
1 stop19h 10m
Deal found 26/9£648
Tue 10/1115:35 -
3 stops28h 55m
Thu 26/1109:10 -
1 stop19h 10m
Deal found 28/9£649

Find flight deals from Seattle to Suvarnabhumi

Round-trip from

£623

One-way from

£322

Popular in

June

Cheapest in

March

Average price

£640
Philippine Airlines
  • Philippine Airlines
  • 9/10-12/10
  • 2 total stops
  • 58h 20m total
  • Seattle to Bangkok
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Delta
  • Delta
  • 4/10-31/12
  • 1 total stop
  • 18h 45m total
  • Seattle to Bangkok
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Bangkok Suvarnabhumi Airport that are best for you.

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Price

Cheapest return flight

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Sun 4/10

07:15-01:05

2 stops27h 50m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£327
Fastest return journey

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Thu 5/11

12:30-23:05

1 stop19h 35m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£328

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Thu 28/1

12:15-23:35

1 stop20h 20m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£332

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Tue 10/11

07:00-11:30

3 stops37h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£333

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Thu 5/11

06:00-05:10

2 stops32h 10m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£333

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Mon 23/11

06:00-05:10

2 stops32h 10m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£333

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Wed 25/11

07:00-11:30

3 stops37h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£337

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Sun 22/11

19:35-11:30

3 stops48h 55m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£346

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Thu 29/10

07:00-11:30

3 stops38h 30m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£376

SeattleBangkok

SEA Seattle/Tacoma Intl - BKK Bangkok Suvarnabhumi

SEABKK

Seattle/Tacoma Intl

Wed 10/3

06:57-11:30

3 stops37h 33m

Bangkok Suvarnabhumi

Wed 31/12

00:00-09:00

Nonstop0h 00m

£376

Flights are sorted by cheapest return flights first.

Deals found on 26/9

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

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

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

The best time to book flights from Seattle to Bangkok Suvarnabhumi Airport is 58 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 month to book a flight from Seattle to Bangkok Suvarnabhumi Airport?

Currently, March is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of £564). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of £939). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Bangkok Suvarnabhumi Airport?

Airfare is typical for this route at the moment.

Seattle to Bangkok Suvarnabhumi Airport flights typically cost between £518 and £657 in October.
The cheapest return price found within the last 5 days was £623 on Philippine Airlines (9 Oct–12 Oct).

Related info for your journey

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

    For a flight from Seattle to Bangkok Suvarnabhumi, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to Bangkok Suvarnabhumi per day. 0 airlines have flights to Bangkok Suvarnabhumi from Seattle/Tacoma Intl on a regular basis.

  • How long is the flight from Seattle to Bangkok Suvarnabhumi Airport?

    A quick flight from Seattle to Bangkok Suvarnabhumi Airport can take about 20h 45m. China Airlines provides one of the quickest options available for as low as £694. The distance from Seattle to Bangkok Suvarnabhumi Airport is about 7443 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Seattle to Bangkok Suvarnabhumi Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Bangkok Suvarnabhumi Airport (average of £564). Flying from Seattle to Bangkok Suvarnabhumi Airport in June is currently the most expensive (average of £939). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Kanchanaburi
Cha-am
Pak Chong
Chonburi
Ko Samet
Ayutthaya
Sattahip
Ko Lan

Browse thousands of different options on Cheapflights for your next trip

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Yes, Cheapflights offers price alerts on Seattle to Suvarnabhumi flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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