Portsmouth, NH
DPortsmouth, NH, NH — PSM
On-Time Rate
71.4%
2019-2025
Avg Delay
22.9 min
when delayed
Cancel Rate
2.4%
flights cancelled
Total Flights
2,584
2019-2025
Best Month
May
79.5% on-time
Worst Month
Jul
61.3% on-time
Best Departure Time
12:00
79.6% on-time
12-Month On-Time Trend
Delay Causes
Best Time to Fly (By Hour)
Seasonal Pattern
Airlines at PSM
| Airline | Flights | On-Time | Avg Delay |
|---|---|---|---|
| Allegiant Air | 2,516 | 71.4% | 0.0 min |
| Frontier Airlines | 68 | 70.6% | 0.0 min |
Most Delayed Routes
| Destination | On-Time |
|---|---|
| PSM → PIESt. Petersburg, FL | 69.0% |
| PSM → PGDPunta Gorda, FL | 71.1% |
| PSM → SFBSanford, FL | 71.7% |
Most Punctual Routes
| Destination | On-Time |
|---|---|
| PSM → SFBSanford, FL | 71.7% |
| PSM → PGDPunta Gorda, FL | 71.1% |
| PSM → PIESt. Petersburg, FL | 69.0% |
Was your flight from Portsmouth, NH delayed?
You may be entitled to compensation of up to $700 per passenger for delayed or cancelled flights. Check your eligibility now.
Check CompensationData source: Bureau of Transportation Statistics (BTS) On-Time Performance dataset. Statistics are based on reported flight data from 2019-2025. See our data methodology for details.