Sacramento (SMF) to Chicago (ORD) flights
United Airlines, American Airlines fly nonstop from Sacramento International Airport to Chicago O'Hare International Airport, with about 30 flights a week in July 2026. The 1,781-mile flight takes about 4h 6m gate to gate.
- Distance
- 1,781 mi · 2,866 km
- Flight time
- 4h 6m
- Airlines
- 2
- Seats filled
- 85%
Airlines flying SMF to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 19 | Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 9 | 142,931 | 4h 7m |
| American Airlines | 11 | Boeing 737-800, Airbus A321, Boeing 737 MAX 8 | 45,303 | 4h 4m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SMF to ORD flight schedule
6 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 7:00am and the last at 11:43pm. 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) |
|---|---|---|---|---|
| UA 2370United Airlines | 7:00am | 1:14pm | 31 | 85% |
| UA 2362United Airlines | 9:20am | 3:34pm | 20 | 80% |
| UA 2766United Airlines | 2:17pm | 8:33pm | 10 | 61% |
| UA 1155United Airlines | 2:23pm | 8:38pm | 21 | 62% |
| AA 1906American Airlines | 3:13pm | 9:40pm | 27 | 54% |
| UA 1148United Airlines | 11:43pm | 5:54am | 10 | 86% |
Is SMF to ORD on time?
From September 2025 to August 2026, 79% of 1,347 flights arrived within 15 minutes of schedule and 1.5% were cancelled. Flights leaving around 9am were the most punctual (88%), those around 3pm the least (65%). Most delay time was caused by air traffic control and airport congestion (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 990 | 81% | 15 min | 1.3% |
| American Airlines | 357 | 74% | 29 min | 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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 12am to 1am | 48 | 72% | |
| 7am to 8am | 324 | 87% | |
| 8am to 9am | 36 | 91% | |
| 9am to 10am | 75 | 88% | |
| 10am to 11am | 151 | 81% | |
| 11am to 12pm | 77 | 78% | |
| 2pm to 3pm | 227 | 68% | |
| 3pm to 4pm | 147 | 65% | |
| 11pm to 12am | 259 | 85% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 120 | 15,916 | |
| September 2025 | 116 | 16,924 | |
| October 2025 | 123 | 16,337 | |
| November 2025 | 88 | 12,315 | |
| December 2025 | 75 | 11,001 | |
| January 2026 | 67 | 9,639 | |
| February 2026 | 56 | 7,765 | |
| March 2026 | 109 | 14,962 | |
| April 2026 | 142 | 20,002 | |
| May 2026 | 151 | 22,661 | |
| June 2026 | 133 | 20,731 | |
| July 2026 | 133 | 19,981 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.