AirHint found the following cheapest return flights from Taipei (TSA) to Seattle (SEA) in January 2026 (see full year).

Return flights

15 Jan - 10 Feb	ANA
16 Jan - 23 Jan	ANA
16 Jan - 25 Jan	ANA
25 Jan - 09 Feb	ANA
21 Jan - 11 Feb	ANA
30 Jan - 10 Feb	ANA
30 Jan - 09 Feb	ANA
25 Jan - 08 Feb	ANA
28 Jan - 08 Feb	ANA
28 Jan - 04 Feb	ANA
30 Jan - 08 Feb	ANA
31 Jan - 10 Feb	ANA
19 Jan - 26 Jan	ANA
13 Jan - 22 Jan	ANA
24 Jan - 30 Jan	ANA
09 Jan - 16 Jan	Japan Airlines
07 Jan - 18 Jan	Japan Airlines
09 Jan - 23 Jan	Japan Airlines
06 Jan - 18 Jan	Japan Airlines
02 Jan - 16 Jan	Japan Airlines

Also check the deals for one-way flights from Taipei to Seattle in January.

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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Cheapest return flights from Taipei to Seattle in January from $778

Return flights