Measured from flights observed on Portsmouth’s own departure and arrival boards over the last 14 days. Every route below carries its observed weekly frequency.
All PSM nonstop destinations, ranked by weekly flights
One row per destination, both directions merged. On time means within 15 minutes of schedule; cancelled is the share of observed legs that never went. Routes with fewer than 20 observed legs show their leg count instead of a shaky number.
Schedule
Schedule
Nonstop flights into Portsmouth
2 of the 2 destinations above also fly nonstop into Portsmouth, so the table covers both directions of each route. Each route row links to its own route page with the paired schedule history.
PSM route map: where 2 nonstop routes go

PSM direct flights: questions travelers ask
How many direct flights does Portsmouth have?
Portsmouth International Airport at Pease currently has nonstop service to 2 destinations on 2 airlines, based on flights observed on the airport's own boards over the last 14 days. 2 of those routes operate in both directions.
Which airline flies the most nonstop routes from Portsmouth?
Tradewind Aviation appears on 1 of the 2 nonstop routes we observed at PSM. The airline column in the route ledger lists every carrier observed on each route.
Where does this data come from?
From Portsmouth International Airport at Pease's own departure and arrival boards, recorded continuously by Pro Flight Search. Reliability figures cover the last 90 days; the route list covers the last 14 days of observed service.
More nonstop guides
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: Portsmouth (PSM) nonstop network and route reliability, measured from official airport boards.
https://proflightsearch.com/direct-flights/portsmouth-PSM
Planning around PSM? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure