Chicago (ORD) to Nantucket (ACK) flights
SkyWest Airlines flies nonstop from Chicago O'Hare International Airport to Nantucket Memorial Airport, with about 2 flights a week in July 2026. The 924-mile flight takes about 2h 48m gate to gate.
- Distance
- 924 mi · 1,487 km
- Flight time
- 2h 48m
- Airlines
- 1
- Seats filled
- 82%
Airlines flying ORD to ACK
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 2 | Embraer E175 | 1,237 | 2h 48m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ORD to ACK flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 9:45am and the last at 11:59am. 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 | 9:45am | 1:34pm | 4 | n/a |
| UA 5651United Airlines · operated by SkyWest Airlines | 11:45am | 3:41pm | 4 | 89% |
| UA 5713United Airlines · operated by SkyWest Airlines | 11:59am | 3:49pm | 6 | n/a |
Is ORD to ACK on time?
From September 2025 to August 2026, 91% of 35 flights arrived within 15 minutes of schedule and 0% were cancelled. Most delay time was caused by air traffic control and airport congestion (45%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 24 | 88% | 13 min | 0% |
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 | 11 | 697 | |
| June 2026 | 8 | 460 | |
| July 2026 | 12 | 706 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.