Cheapest return flights from Washington (IAD) to Lisbon (LIS), October

20 dates in October, from $ 592. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
29 Oct 5 Nov Iberia
30 Oct 6 Nov SWISS
24 Oct 31 Oct TAP
31 Oct 7 Nov Finnair
30 Oct 5 Nov Lufthansa
30 Oct 4 Nov Royal Air Maroc
30 Oct 5 Nov TAP
Direct Flight
12 Oct 21 Oct TAP
Direct Flight
21 Oct 8 Nov Royal Air Maroc
26 Oct 3 Nov Porter Airlines (Canada) Ltd
27 Oct 3 Nov Lufthansa
16 Oct 22 Oct Air Canada
12 Oct 20 Oct Royal Air Maroc
26 Oct 7 Nov Porter Airlines (Canada) Ltd
21 Oct 31 Oct Royal Air Maroc
12 Oct 19 Oct Royal Air Maroc
14 Oct 21 Oct TAP
Direct Flight
15 Oct 22 Oct TAP
Direct Flight
16 Oct 22 Oct TAP
Direct Flight
25 Oct 29 Oct Porter Airlines (Canada) Ltd
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Updated Oct 10, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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