Cheapest one-way flights from Seattle to Bangkok in May from $445

Best time to book flights for Seattle (SEA) to Bangkok (BKK) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Bangkok (BKK) in May 2025 (see full year).

One-Way flights

13 May Qatar Airways
23 May Asiana Airlines
20 May Asiana Airlines
19 May Asiana Airlines
14 May Asiana Airlines
18 May Qatar Airways
25 May Alaska Airlines
29 May Alaska Airlines
16 May Delta
22 May Thai Airways

Also check the deals for return flights from Seattle to Bangkok in May.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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