Philadelphia (PHL) to Nantucket (ACK) flights
Republic Airline flies nonstop from Philadelphia International Airport to Nantucket Memorial Airport, with about 13 flights a week in July 2026. The 288-mile flight takes about 1h 28m gate to gate.
- Distance
- 288 mi · 463 km
- Flight time
- 1h 28m
- Airlines
- 1
- Seats filled
- 82%
Airlines flying PHL to ACK
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 13 | Embraer E175 | 7,408 | 1h 28m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PHL to ACK flight schedule
3 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 10:51am and the last at 1:42pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AA 4735American Airlines · operated by Republic Airline | 10:51am | 12:23pm | 31 | 85% |
| AA 4545American Airlines · operated by Republic Airline | 1:33pm | 3:08pm | 4 | 73% |
| AA 4518American Airlines · operated by Republic Airline | 1:42pm | 3:11pm | 27 | 82% |
Is PHL to ACK on time?
From September 2025 to August 2026, 81% of 152 flights arrived within 15 minutes of schedule and 2.6% were cancelled. Flights leaving around 10am were the most punctual (85%), those around 1pm the least (77%). Most delay time was caused by late-arriving aircraft (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 152 | 81% | 14 min | 2.6% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 32 | 2,051 | |
| September 2025 | 2 | 52 | |
| June 2026 | 26 | 1,592 | |
| July 2026 | 59 | 3,713 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.