AirHint found the following cheapest return flights from Washington (IAD) to Taipei (TPE) in October 2025 (see full year).

Return flights

13 Oct - 27 Oct	Alaska Airlines
13 Oct - 20 Nov	Alaska Airlines
02 Oct - 12 Oct	Alaska Airlines
09 Oct - 19 Oct	Alaska Airlines
09 Oct - 21 Oct	Alaska Airlines
14 Oct - 28 Oct	Turkish Airlines
17 Oct - 26 Oct	Alaska Airlines
14 Oct - 27 Oct	Turkish Airlines
16 Oct - 26 Oct	Alaska Airlines
21 Oct - 12 Nov	Frontier Airlines
15 Oct - 28 Oct	Turkish Airlines
11 Oct - 17 Oct	Frontier Airlines
31 Oct - 11 Nov	United
10 Oct - 08 Nov	Delta
23 Oct - 20 Nov	Alaska Airlines

Also check the deals for one-way flights from Washington to Taipei in October.

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 Washington to Taipei in October from 817€

Return flights