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

SEA — BKK
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from Seattle to Bangkok on Korean Air typically fly into Bangkok Suvarnabhumi and depart from Seattle/Tacoma Intl. Select your dates above for pricing.

Korean Air flights from Seattle to Suvarnabhumi in 2026

Find detailed information about Korean Air flights from Seattle to Suvarnabhumi. Explore the options provided by Korean Air to plan your journey from Seattle to Suvarnabhumi. Data last updated 7 May 2026.

One-way from

฿16,919

Return from

฿31,351

Popular in

June

Cheapest in

September

Average price (all airlines)

฿28,865
Korean Air
  • Korean Air
  • 22/7
  • 1 total stop
  • 21h 45m total
  • Seattle to Bangkok
Korean Air
  • Korean Air
  • 21/9-4/10
  • 2 total stops
  • 42h 50m total
  • Seattle to Bangkok
Highest demand for flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 15% potential price increase.
Best time to find cheap flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 4% potential price drop.
Average price for all Seattle/Tacoma Intl to Bangkok Suvarnabhumi flights (one-way and round-trip).
  • Can I get a flight from Seattle to Bangkok Suvarnabhumi Airport on Korean Air for under ฿29,059?

    Cheapflights users have found 10 Korean Air flights for under ฿29,059 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.

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
Explore the most affordable Korean Air flight options available from Seattle to Suvarnabhumi. Find the lowest fares with prices last updated on 7 May 2026.

Mon 11/512:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Tue 26/521:40
BKK
-
SEA
1 stop27h 00m
Korean Air
Deal found 5/5฿38,325
Mon 11/512:50
SEA
-
BKK
1 stop20h 45m
Korean Air
Thu 21/509:50
BKK
-
SEA
2 stops24h 40m
Korean Air
Deal found 6/5฿38,681
Tue 12/512:50
SEA
-
BKK
1 stop20h 45m
Korean Air
Sat 23/523:30
BKK
-
SEA
1 stop25h 10m
Korean Air
Deal found 4/5฿39,617

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 34 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 April. 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
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.

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See what others are saying about Korean Air

Read reviews and see what other travellers are saying about their experiences with Korean Air. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Korean Air for your next flight. Reviews last updated 7 May 2026.
Korean Air
8.4
Very Good
1,217 reviews
Overview

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

Comfort

8.3

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