Cheapest return flights from Washington to Lisbon in October from $622

Best time to book flights for Washington (IAD) to Lisbon (LIS) flights at AirHint

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

Return flights

23 Oct - 27 Oct Scandinavian Airlines
08 Oct - 21 Oct Royal Air Maroc
05 Oct - 12 Oct Royal Air Maroc
13 Oct - 20 Oct Royal Air Maroc
17 Oct - 25 Oct Scandinavian Airlines
12 Oct - 19 Oct Icelandair
14 Oct - 21 Oct Turkish Airlines
16 Oct - 23 Oct Turkish Airlines
22 Oct - 03 Nov Scandinavian Airlines
10 Oct - 25 Oct Royal Air Maroc
17 Oct - 24 Oct Scandinavian Airlines
27 Oct - 03 Nov TAP direct
22 Oct - 03 Nov TAP direct

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

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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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