AirHint found the following cheapest return flights from Pittsburgh (PIT) to Lisbon (LIS) in April 2026 (see full year).
Return flights
| 21 Apr - 28 Apr | British Airways | ||
| 14 Apr - 21 Apr | British Airways | ||
| 13 Apr - 20 Apr | Finnair | ||
| 14 Apr - 20 Apr | British Airways | ||
| 22 Apr - 02 May | KLM | ||
| 13 Apr - 18 Apr | United | ||
| 06 Apr - 11 Apr | Finnair |
Also check the deals for one-way flights from Pittsburgh to Lisbon in April.
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