Can I get a flight from Seattle to Bangkok Suvarnabhumi Airport on Korean Air for under ฿33,568?

Cheapflights users have found 8 Korean Air flights for under ฿33,568 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.

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

Booking with Korean Air 40 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Bangkok Suvarnabhumi Airport with Korean Air?

Currently, the most affordable month to book a Korean Air flight from Seattle to Bangkok Suvarnabhumi Airport in May, with an average price of ฿21,886. Conversely, traveling with Korean Air from Seattle to Bangkok Suvarnabhumi Airport in June will be the most expensive, with an average cost of ฿36,723. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok Suvarnabhumi Airport when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Bangkok Suvarnabhumi Airport, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

฿13,595+ Korean Air flights from Seattle to Suvarnabhumi

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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 17 July 2026.

Mon 24/807:20

SEA

BKK

2 stops26h 15m

Korean Air

Wed 23/909:50

BKK

SEA

1 stop38h 50m

Korean Air

Deal found 16/7฿28,096

Wed 26/813:20

SEA

BKK

1 stop18h 25m

Korean Air

Tue 1/902:35

BKK

SEA

1 stop22h 05m

Korean Air

Deal found 12/7฿28,230

Thu 27/813:20

SEA

BKK

1 stop18h 25m

Korean Air

Wed 2/902:35

BKK

SEA

1 stop22h 05m

Korean Air

Deal found 13/7฿28,499

Can I get a flight from Seattle to Bangkok Suvarnabhumi Airport on Korean Air for under ฿33,568?
Cheapflights users have found 8 Korean Air flights for under ฿33,568 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	฿13,595
Return from	฿28,096
Popular in	June
Cheapest in	October
Average price (all airlines)	฿32,158

Korean Air
11/8
1 total stop
21h 45m total
Seattle to Bangkok

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Korean Air
24/8-23/9
3 total stops
65h 05m total
Seattle to Bangkok

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Highest demand for flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 16% potential price increase.

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Best time to find cheap flights from Seattle/Tacoma Intl to Bangkok Suvarnabhumi; 4% potential price drop.

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Average price for all Seattle/Tacoma Intl to Bangkok Suvarnabhumi flights (one-way and round-trip).

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Prices

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.

SEA-BKK

Estimated return price

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

Find Korean Air flight deals from Seattle to Suvarnabhumi

Cheapest Korean Air flights from Seattle to SuvarnabhumiExplore the most affordable Korean Air flight options available from Seattle to Suvarnabhumi. Find the lowest fares with prices last updated on 17 July 2026.

Explore the most affordable Korean Air flight options available from Seattle to Suvarnabhumi. Find the lowest fares with prices last updated on 17 July 2026.

Best Korean Air flights from Seattle to SuvarnabhumiDiscover carefully curated Korean Air flight deals from Seattle to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 July 2026.

Discover carefully curated Korean Air flight deals from Seattle to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 July 2026.

Last-minute Korean Air flights from Seattle to SuvarnabhumiDiscover last-minute Korean Air flight deals from Seattle to Suvarnabhumi. Data last updated 17 July 2026 and is based on user searches.

Discover last-minute Korean Air flight deals from Seattle to Suvarnabhumi. Data last updated 17 July 2026 and is based on user searches.

One-way Korean Air flights to SuvarnabhumiSearch for one-way Korean Air flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 17 July 2026.

Search for one-way Korean Air flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 17 July 2026.

Can I get a flight from Seattle to Bangkok Suvarnabhumi Airport on Korean Air for under ฿33,568?

Korean Air flights from Seattle to Suvarnabhumi in 2026

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Average price (all airlines)

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.

Rainfall in Suvarnabhumi by month

In terms of precipitation, rainfall in Bangkok Suvarnabhumi Airport ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok Suvarnabhumi Airport when rainfall is around 10.0 mm.

Temperature in Suvarnabhumi by month

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.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Seattle to Suvarnabhumi on another airline

Consider alternative airlines that service the Suvarnabhumi area. Flight routes are based on user searches made on Cheapflights and were last updated on 17 July 2026.

Complete your trip

Complete your trip to Suvarnabhumi by adding a car rental and/or hotel reservation to your travel itinerary.

Other popular destinations in Asia

If Suvarnabhumi is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 17 July 2026.

Popular flights with Korean Air

Browse through some of the most popular routes that Korean Air offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 17 July 2026.

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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 17 July 2026.

Best Korean Air flights from Seattle to Suvarnabhumi
Discover carefully curated Korean Air flight deals from Seattle to Suvarnabhumi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 July 2026.

Last-minute Korean Air flights from Seattle to Suvarnabhumi
Discover last-minute Korean Air flight deals from Seattle to Suvarnabhumi. Data last updated 17 July 2026 and is based on user searches.

One-way Korean Air flights to Suvarnabhumi
Search for one-way Korean Air flight options to Suvarnabhumi. Find affordable one-way fares based on user searches. Data last updated 17 July 2026.