Cheapest return flights from Washington to Lisbon in April from 547€

Best time to book flights for Washington (IAD) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Lisbon (LIS) in April 2025 (see full year).

Return flights

01 Apr - 08 Apr Aer Lingus
02 Apr - 09 Apr British Airways
22 Apr - 29 Apr Finnair
01 Apr - 09 Apr British Airways
16 Apr - 23 Apr British Airways
23 Apr - 30 Apr British Airways
20 Apr - 27 Apr Finnair
18 Apr - 25 Apr British Airways
17 Apr - 24 Apr British Airways
03 Apr - 10 Apr Aer Lingus
28 Apr - 05 May British Airways
22 Apr - 03 May British Airways
22 Apr - 03 May TAP direct
28 Apr - 05 May TAP direct

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

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.

Book a cheap hotel in Lisbon

Cheap car rent in Lisbon