Cheapest return flights from Islip to Lisbon in April from 1153€
AirHint found the following cheapest return flights from Islip (ISP) to Lisbon (LIS) in April 2025 (see full year).
Return flights
| 05 Apr - 11 Apr | Breeze Airways |
Also check the deals for one-way flights from Islip to Lisbon in April.
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.
