Route
PIE → PSM
St. Petersburg Clearwater International Airport Portsmouth International Airport at Pease
1,239 miles
Return route PSM → PIE →
How punctual is this route?
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 37 min
- Flights arriving 15+ minutes late
- Flights tracked
- 39
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 35%
- Airline (crew, maintenance, cleaning) 28%
- Late-arriving aircraft 25%
- Extreme weather 13%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Apr 2026
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| April 2026 | 83.3% | 6 |
| May 2026 | 90.9% | 11 |
| June 2026 | 62.5% | 8 |
| July 2026 | 66.7% | 9 |
| August 2026 | 80.0% | 5 |
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
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Allegiant Air | 39 | 76.9% | 0.0% | 37 min |
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