$507 Cheap EVA Airways flights Seattle (SEA) to Bangkok (BKK)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap EVA Air round-trip flights from $881 from SEA to BKK. Affordable one-way fares from $507 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for return or one-way flights to Bangkok in September or October. You could find cheaper fares with EVA Air during these off-peak times.

Getting the best EVA Air deals from SEA to BKK often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is usually the most expensive day to book.* It’s a good idea to start searching for flights about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct journey from SEA to BKK with EVA Air or another airline, check the “Nonstop” filter when browsing for flights.

Browse EVA Air’s earliest flights from SEA to BKK by using the “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Suvarnabhumi Intl. Airport (BKK) is the main Bangkok gateway for EVA Air flights from Seattle - Tacoma Intl. Airport (SEA).

For checked luggage, you can take 1 checked-in bag weighing up to 44 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag in the cabin when flying standard economy from SEA to BKK with EVA Air. This carry-on must weigh less than 15 lb and be no bigger than 45 inches. Going over these limits can mean extra fees, so check EVA Air’s baggage allowance rules before you start packing.

Offering top-tier customer service and a rewarding loyalty program, EVA Air is a favorite for many passengers heading from SEA to BKK. What’s more, if you’re an EVA Air Infinity MileageLands and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of making a booking, but your airline may charge a fee after that time. For further information about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to make changes without additional charges, check the “Changes included” or “No cancel fee” filter when organizing your next trip.