Route
ACK → PHL
Nantucket Memorial Airport Philadelphia International Airport
288 miles
Return route PHL → ACK →
How punctual is this route?
- On-time arrivals
- 76.6%
- Less than 15 minutes late
- Cancelled
- 4.6%
- Of scheduled flights
- Average delay when late
- 120 min
- Flights arriving 15+ minutes late
- Flights tracked
- 152
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Air traffic control & airport 38%
- Airline (crew, maintenance, cleaning) 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 50.0% | 2 |
| June 2026 | 80.8% | 26 |
| July 2026 | 81.0% | 62 |
| August 2026 | 71.2% | 62 |
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 |
|---|---|---|---|---|
| Republic Airways | 152 | 76.6% | 4.6% | 120 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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