Nantucket (ACK) to Chicago (ORD) flights
SkyWest Airlines flies nonstop from Nantucket Memorial Airport to Chicago O'Hare International Airport, with about 2 flights a week in July 2026. The 924-mile flight takes about 3h 20m gate to gate.
- Distance
- 924 mi · 1,487 km
- Flight time
- 3h 20m
- Airlines
- 1
- Seats filled
- 88%
Airlines flying ACK to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 2 | Embraer E175 | 1,197 | 3h 20m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ACK to ORD flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 2:04pm and the last at 4:45pm. 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 4395American Airlines · operated by Republic Airline | 2:04pm | 4:43pm | 4 | n/a |
| UA 5318United Airlines · operated by SkyWest Airlines | 4:32pm | 6:50pm | 4 | 54% |
| UA 5630United Airlines · operated by SkyWest Airlines | 4:45pm | 7:00pm | 6 | n/a |
Is ACK to ORD on time?
From September 2025 to August 2026, 68% of 35 flights arrived within 15 minutes of schedule and 2.9% were cancelled. Most delay time was caused by air traffic control and airport congestion (58%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 24 | 61% | 29 min | 4.2% |
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 | 10 | 673 | |
| June 2026 | 8 | 461 | |
| July 2026 | 11 | 758 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.