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

Return flights

12 Nov - 19 Nov	Air Canada
24 Nov - 01 Dec	Air Canada
04 Nov - 13 Nov	TAP	direct
27 Nov - 07 Dec	Scandinavian Airlines
06 Nov - 11 Nov	Air Canada
14 Nov - 23 Nov	Icelandair
11 Nov - 18 Nov	TAP	direct
18 Nov - 23 Nov	TAP	direct
04 Nov - 11 Nov	TAP	direct
29 Nov - 06 Dec	TAP	direct
05 Nov - 19 Nov	Scandinavian Airlines
07 Nov - 11 Nov	Air Canada
18 Nov - 25 Nov	TAP	direct
11 Nov - 06 Dec	TAP	direct
30 Nov - 08 Dec	TAP	direct
12 Nov - 06 Dec	Lufthansa
20 Nov - 13 Dec	Turkish Airlines
19 Nov - 13 Dec	Turkish Airlines
16 Nov - 06 Dec	Royal Air Maroc
25 Nov - 20 Dec	Turkish Airlines

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

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 Lisbon in November from $484

Return flights