Cheapest return BWI–OPO flights, August

AirHint found the following cheapest return flights from Baltimore (BWI) to Porto (OPO) in August 2026 (see full year).

Return flights

05 Aug - 12 Aug Delta
15 Aug - 23 Aug Icelandair
09 Aug - 16 Aug Icelandair
03 Aug - 10 Aug Finnair
07 Aug - 14 Aug Delta
06 Aug - 13 Aug British Airways
08 Aug - 15 Aug Delta
02 Aug - 09 Aug Spirit Airlines
01 Aug - 08 Aug Delta

Also check the deals for one-way flights from Baltimore to Porto in August.

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