Cheapest return flights from Taipei to Seattle in September from $654

Best time to book flights for Taipei (TPE) to Seattle (SEA) flights at AirHint

AirHint found the following cheapest return flights from Taipei (TPE) to Seattle (SEA) in September 2025 (see full year).

Return flights

18 Sep - 28 Sep United
19 Sep - 30 Sep United
07 Sep - 14 Sep United
02 Sep - 05 Sep United
13 Sep - 27 Sep United
08 Sep - 15 Sep United
15 Sep - 19 Sep United
14 Sep - 27 Sep United
10 Sep - 22 Sep United
16 Sep - 29 Sep United
28 Sep - 09 Oct United
26 Sep - 13 Oct United
30 Sep - 13 Oct United
30 Sep - 04 Oct United
30 Sep - 12 Oct United
13 Sep - 12 Oct United
12 Sep - 12 Oct United
12 Sep - 13 Oct United
27 Sep - 12 Oct United
24 Sep - 02 Oct United

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

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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