Cheapest return flights from Washington to Lisbon in October from 577€

AirHint found the following cheapest return flights from Washington (IAD) to Lisbon (LIS) in October 2026 (see full year).

Return flights

12 Oct - 19 Oct Turkish Airlines
05 Oct - 10 Oct Turkish Airlines
19 Oct - 24 Oct Turkish Airlines
21 Oct - 25 Oct Royal Air Maroc
21 Oct - 08 Nov Royal Air Maroc
12 Oct - 20 Oct Iberia
09 Oct - 18 Oct Turkish Airlines
20 Oct - 27 Oct Iberia
21 Oct - 25 Oct TAP direct
21 Oct - 08 Nov TAP direct
05 Oct - 09 Oct Royal Air Maroc
18 Oct - 23 Oct Scandinavian Airlines

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

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