Skip to main content

Route

Baltimore → Portsmouth

BWIBaltimoreBaltimore/Washington International Thurgood Marshall Airport
PSMPortsmouthPortsmouth International Airport at Pease
Distance
406 mi
Estimated flight time
~1h 20m

Same local time in Baltimore and Portsmouth.

No nonstop connection observed

View the reverse route

Our route data contains no observed nonstop flight from Baltimore to Portsmouth. That does not rule out a one-stop journey; see the direct destinations of Baltimore for the options.

About this route

  • Domestic route: both airports are in the same country.
  • Direct destinations observed from Baltimore: 104.
  • Direct destinations observed from Portsmouth: 16.

The airports on this route

Baltimore/Washington International Thurgood Marshall Airport

Baltimore, United StatesBWI / KBWI

Major airport · 104 direct destinations · 3 runways · longest runway 10,502 ft

70 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Portsmouth International Airport at Pease

Portsmouth, United StatesPSM / KPSM

Regional airport · 16 direct destinations · 1 runway · longest runway 11,322 ft

57 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

BWI MHTManchester-Boston Regional AirportManchester is about 32 mi from Portsmouth.View route →BWI PWMPortland International JetportPortland is about 47 mi from Portsmouth.View route →BWI BEDLaurence G Hanscom FieldBedford is about 48 mi from Portsmouth.View route →BWI BOSBoston Logan International AirportBoston is about 50 mi from Portsmouth.View route →

About the route from Baltimore to Portsmouth

The distance between Baltimore/Washington International Thurgood Marshall Airport (BWI) and Portsmouth International Airport at Pease (PSM) is approximately 406 mi; no direct connection has been observed in our route data.

Frequently asked questions about this route

How far is Baltimore from Portsmouth by air?
The great-circle distance between Baltimore/Washington International Thurgood Marshall Airport and Portsmouth International Airport at Pease is approximately 406 mi.
Is there a direct connection from Baltimore to Portsmouth?
No direct connection between BWI and PSM has been observed in our route data. That does not rule out a one-stop journey.
What is the current time difference between Baltimore and Portsmouth?
Same local time in Baltimore and Portsmouth.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The flight archive of the last twelve months has nothing for this route, so we say nothing about frequency.

Route data updated on October 11, 2026.