What is the cheapest month to fly from Portsmouth to Baltimore?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Portsmouth (PSM) to Baltimore (BWI), with fares starting from $321.

What is the lowest current fare from PSM to BWI?

The lowest currently-listed fare from Portsmouth (PSM) to Baltimore (BWI) is $321 on 2026-08-20.

Is there a direct flight from Portsmouth to Baltimore?

There is currently no non-stop service from PSM to BWI. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Portsmouth to Baltimore

Cheapest current fares: $321 in August 2026 on connecting flights.

Last updated August 12, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Portsmouth (PSM) to Baltimore (BWI). Refreshed daily.

Portsmouth (PSM) → Baltimore (BWI)

August 2026 $321

Frequently asked questions

What is the cheapest month to fly from Portsmouth to Baltimore?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Portsmouth (PSM) to Baltimore (BWI), with fares starting from $321.
What is the lowest current fare from PSM to BWI?

The lowest currently-listed fare from Portsmouth (PSM) to Baltimore (BWI) is $321 on 2026-08-20.
Is there a direct flight from Portsmouth to Baltimore?

There is currently no non-stop service from PSM to BWI. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.