AirHint found the following cheapest return flights from Portland (PDX) to Bangkok (BKK) in January 2026 (see full year).
Return flights
| 20 Jan - 20 Feb | China Airlines | ||
| 17 Jan - 17 Feb | China Airlines | ||
| 27 Jan - 05 Feb | STARLUX Airlines | ||
| 29 Jan - 24 Feb | Singapore Airlines | ||
| 12 Jan - 19 Jan | Alaska Airlines | ||
| 04 Jan - 14 Jan | Frontier Airlines |
Also check the deals for one-way flights from Portland to Bangkok in January.
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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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