Korean Air flights from Seattle to Bangkok Suvarnabhumi Airport (SEA - BKK)

SEA — BKK
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find Korean Air flight deals from Seattle to Suvarnabhumi

Enter your travel dates to find the best prices.

Cheapest Korean Air flights from Seattle to Suvarnabhumi

Tue 17/1111:00 -
1 stop21h 05m
Fri 4/1221:40 -
1 stop26h 25m
Deal found 2/11฿32,046
Sat 28/1117:30 -
2 stops39h 50m
Sun 13/1201:05 -
1 stop28h 05m
Deal found 31/10฿32,248
Sun 29/1111:00 -
1 stop22h 20m
Sun 13/1201:05 -
2 stops29h 06m
Deal found 1/11฿32,417
  • Can I get a flight from Seattle to Bangkok Suvarnabhumi Airport on Korean Air for under ฿30,359?

    Cheapflights users have found 11 Korean Air flights for under ฿30,359 on the SEA-BKK route. Prices on flights to Bangkok Suvarnabhumi Airport from Seattle can vary based on many factors including dates. To look at price based on your preferred dates, click here.

Korean Air flights from Seattle to Suvarnabhumi in 2026

One-way from

฿14,707

Return from

฿28,538

Popular in

December

Cheapest in

March

Average price (all airlines)

฿29,516
Korean Air
  • Korean Air
  • 28/4-31/12
  • 2 total stops
  • 31h 20m total
  • Seattle to Bangkok
Korean Air
  • Korean Air
  • 14/2-8/3
  • 2 total stops
  • 41h 35m total
  • Seattle to Bangkok
Highest demand for flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 7% potential price increase.
Best time to find cheap flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 3% potential price drop.
Average price for all Seattle/Tacoma Intl to Bangkok Suvarnabhumi flights (one-way and round-trip).

When is the best time to book a flight to Bangkok Suvarnabhumi Airport with Korean Air?

The best time to book a flight to Bangkok Suvarnabhumi Airport with Korean Air is 40 days before departure. On average, fares are higher if you book 35 days before departure.

Which month is the cheapest to fly Economy class from Seattle to Bangkok Suvarnabhumi Airport?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are June and July.

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

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See what others are saying about Korean Air

Korean Air
8.4
Very Good
1,218 reviews
Overview

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

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