Airport
Portsmouth International Airport at Pease
PSM · Portsmouth, NH
- IATA Code
- PSM
- ICAO Code
- KPSM
- City
- Portsmouth
- Country
- United States
- Website
- flypsmairport.com
Portsmouth International Airport at Pease is a regional airport serving Portsmouth, NH. Its IATA code is PSM and its ICAO code is KPSM.
The airfield sits 100 feet above sea level.
Below you'll find official on-time statistics, current weather and delays, nearby aircraft and traveler reviews. Flown through PSM recently? Share your experience to help other travelers.
PSM by the numbers
IATA PSM · ICAO KPSM · 100 ft elevation · Map
Loading live weather, forecasts, delays and nearby aircraft…
Official departure punctuality
Ranks #294 of 358 U.S. airports for on-time departures
- On-time departures
- 75.1%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 109 min
- Flights arriving 15+ minutes late
- Flights tracked
- 424
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 37%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 29%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Busiest routes from PSM
| Route | Flights | On time |
|---|---|---|
| Punta Gorda (PGD) | 237 | 79% |
| Orlando (SFB) | 134 | 68% |
| Pinellas Park (PIE) | 39 | 72% |
| Sarasota/Bradenton (SRQ) | 14 | 93% |
Airlines departing PSM
| Airline | Flights | On-time departures |
|---|---|---|
| Allegiant Air | 424 | 75% |
Runways
| Runway | Length | Surface |
|---|---|---|
| 16/34 | 11,321 ft | PEM, lighted |
Listen to the tower
Air traffic control frequencies, for scanners and airband radios.
- Recorded airport information (ATIS) 132.050 MHz
- Tower 128.400 MHz
- Ground 120.950 MHz
- Clearance delivery 33.580 MHz
- Departure 125.050 MHz
- Approach 125.050 MHz
Runways and frequencies: OurAirports (public domain). Not for navigation.
Tags: PSM, KPSM, Portsmouth airport, Portsmouth International Airport at Pease
Reviews
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