Cheapest return flights from Seattle to Lisbon in April from 381€

AirHint found the following cheapest return flights from Seattle (SEA) to Lisbon (LIS) in April 2026 (see full year).

Return flights

22 Apr - 29 Apr Air Canada
20 Apr - 27 Apr Air Canada
21 Apr - 28 Apr Air France
23 Apr - 30 Apr Lufthansa
17 Apr - 24 Apr Lufthansa
18 Apr - 25 Apr British Airways
25 Apr - 03 May British Airways
25 Apr - 02 May British Airways
11 Apr - 18 Apr Virgin Atlantic
01 Apr - 08 Apr Air Canada

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

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