Cheapest return BUF–LIS flights, July

AirHint found the following cheapest return flights from Buffalo (BUF) to Lisbon (LIS) in July 2026 (see full year).

Return flights

28 Jul - 11 Aug Delta
01 Jul - 07 Jul United
13 Jul - 18 Jul Frontier Airlines
06 Jul - 10 Jul Frontier Airlines

Also check the deals for one-way flights from Buffalo to Lisbon in July.

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