Cheapest return flights from Seattle to Lisbon in March from 560€

Best time to book flights for Seattle (SEA) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Lisbon (LIS) in March 2025 (see full year).

Return flights

09 Mar - 17 Mar Icelandair
02 Mar - 10 Mar Icelandair
27 Mar - 03 Apr Icelandair
11 Mar - 18 Mar Frontier Airlines
25 Mar - 01 Apr Spirit Airlines
26 Mar - 02 Apr Icelandair
10 Mar - 17 Mar Lufthansa
04 Mar - 12 Mar WestJet
11 Mar - 19 Mar Air Canada
18 Mar - 25 Mar Air Canada
06 Mar - 13 Mar WestJet
03 Mar - 11 Mar Icelandair
24 Mar - 31 Mar Frontier Airlines
28 Mar - 04 Apr Air Canada

Also check the deals for one-way flights from Seattle to Lisbon in March.

Skyscanner

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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