￥49,140 Cheap Flights from Seattle (SEA) to Bangkok (BKK)

View ￥49,140 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Suvarnabhumi Intl. Airport (BKK)

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Cheap Flights from Seattle to Bangkok (SEA-BKK)

Prices were available within the past 7 days and start at ￥49,140 for one-way flights and ￥103,540 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Mon, Jan 12 - Tue, Feb 3
SEA
Seattle
BKK
Bangkok
￥103,540 Roundtrip, found 5 days ago
￥103,540
Roundtrip
found 5 days ago
Select Asiana Airlines flight, departing Mon, Jan 12 from Seattle to Bangkok, returning Tue, Feb 3, priced at ￥103,540 found 5 days ago
Delta
Mon, Jan 12 - Tue, Feb 3
SEA
Seattle
BKK
Bangkok
￥105,960 Roundtrip, found 5 days ago
￥105,960
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Jan 12 from Seattle to Bangkok, returning Tue, Feb 3, priced at ￥105,960 found 5 days ago
Korean Air
Mon, Jan 12 - Tue, Feb 3
SEA
Seattle
BKK
Bangkok
￥106,520 Roundtrip, found 5 days ago
￥106,520
Roundtrip
found 5 days ago
Select Korean Air flight, departing Mon, Jan 12 from Seattle to Bangkok, returning Tue, Feb 3, priced at ￥106,520 found 5 days ago
All Nippon Airways
Tue, Nov 11 - Mon, Dec 8
SEA
Seattle
BKK
Bangkok
￥110,730 Roundtrip, found 1 day ago
￥110,730
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Tue, Nov 11 from Seattle to Bangkok, returning Mon, Dec 8, priced at ￥110,730 found 1 day ago
Philippine Airlines
Fri, Nov 28 - Thu, Dec 11
SEA
Seattle
BKK
Bangkok
￥116,050 Roundtrip, found 16 hours ago
￥116,050
Roundtrip
found 16 hours ago
Select Philippine Airlines flight, departing Fri, Nov 28 from Seattle to Bangkok, returning Thu, Dec 11, priced at ￥116,050 found 16 hours ago
United
Sun, Nov 9 - Mon, Nov 24
SEA
Seattle
BKK
Bangkok
￥116,690 Roundtrip, found 6 days ago
￥116,690
Roundtrip
found 6 days ago
Select United flight, departing Sun, Nov 9 from Seattle to Bangkok, returning Mon, Nov 24, priced at ￥116,690 found 6 days ago
China Airlines
Mon, Jan 12 - Tue, Feb 3
SEA
Seattle
BKK
Bangkok
￥123,100 Roundtrip, found 5 days ago
￥123,100
Roundtrip
found 5 days ago
Select China Airlines flight, departing Mon, Jan 12 from Seattle to Bangkok, returning Tue, Feb 3, priced at ￥123,100 found 5 days ago
STARLUX Airlines
Mon, Nov 3 - Sat, Nov 8
SEA
Seattle
BKK
Bangkok
￥129,100 Roundtrip, found 2 days ago
￥129,100
Roundtrip
found 2 days ago
Select STARLUX Airlines flight, departing Mon, Nov 3 from Seattle to Bangkok, returning Sat, Nov 8, priced at ￥129,100 found 2 days ago
China Eastern Airlines
Thu, Dec 4 - Wed, Dec 10
SEA
Seattle
BKK
Bangkok
￥153,040 Roundtrip, found 1 day ago
￥153,040
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Thu, Dec 4 from Seattle to Bangkok, returning Wed, Dec 10, priced at ￥153,040 found 1 day ago
Air Canada
Mon, Jan 12 - Tue, Feb 3
SEA
Seattle
BKK
Bangkok
￥167,310 Roundtrip, found 5 days ago
￥167,310
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Jan 12 from Seattle to Bangkok, returning Tue, Feb 3, priced at ￥167,310 found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to Bangkok (BKK)

January is typically the cheapest month to fly

From ￥95,099 - ￥195,714 per traveler.
Flights from Seattle (SEA) to Bangkok (BKK)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Hawaiian Airlines, KLM, Korean Air, Philippine Airlines, Qatar Airways, STARLUX Airlines, Thai Airways International, Turkish Airlines, United
Roundtrip price
￥103,540
Distance
11917 km

Seattle to Bangkok Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Bangkok.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to BKK flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to BKK with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Suvarnabhumi Intl. Airport (BKK)?
The lowest price advertised for a round-trip flight between SEA and Bangkok Airport is ￥103,540. But you better move fast. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Bangkok Airport?
The majority of flights can be conveniently canceled online, but whether or not you incur a fee depends on your airline. If you do need to cancel your trip, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from SEA to Suvarnabhumi Intl. Airport (BKK) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to BKK flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from SEA to Bangkok Airport?
Make the 18 hours and 17 minutes between SEA and BKK as comfortable as you can. Bring the essentials, like toiletries, your toothbrush and a neck pillow, and sit back and enjoy the flight!
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Bangkok Airport?
The distance is around 12,000 kilometers. Sleep mask? Check. Toothbrush? Double check. We recommend you pack all the essentials for this long-haul SeaTac to Bang Phli flight.
Which airlines fly direct from Sea-Tac Airport to Bangkok Airport?
If you want to travel straight from Seattle - Tacoma Intl. Airport (SEA) to Bangkok Airport, you'll have to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly between these airports.
Are Seattle - Tacoma Intl. Airport (SEA) to BKK flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Seattle - Tacoma Intl. Airport (SEA) to BKK can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out! If you'd rather play it safe and start planning your trip early on, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines list their prices so far in advance. Our suggestion? Check back often as updates are made frequently.

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