Nantucket (ACK) to Philadelphia (PHL) flights
Republic Airline flies nonstop from Nantucket Memorial Airport to Philadelphia International Airport, with about 14 flights a week in July 2026. The 288-mile flight takes about 1h 38m gate to gate.
- Distance
- 288 mi · 463 km
- Flight time
- 1h 38m
- Airlines
- 1
- Seats filled
- 79%
Airlines flying ACK to PHL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 14 | Embraer E175 | 7,137 | 1h 38m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ACK to PHL flight schedule
3 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 12:53pm and the last at 3:41pm. 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 | 12:53pm | 2:40pm | 31 | 81% |
| AA 4545American Airlines · operated by Republic Airline | 3:38pm | 5:28pm | 4 | 74% |
| AA 4518American Airlines · operated by Republic Airline | 3:41pm | 5:30pm | 27 | 67% |
Is ACK to PHL on time?
From September 2025 to August 2026, 77% of 152 flights arrived within 15 minutes of schedule and 4.6% were cancelled. Flights leaving around 12pm were the most punctual (84%), those around 3pm the least (72%). Most delay time was caused by late-arriving aircraft (54%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 152 | 77% | 28 min | 4.6% |
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 | 31 | 2,113 | |
| September 2025 | 2 | 152 | |
| June 2026 | 26 | 1,214 | |
| July 2026 | 60 | 3,658 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.