Chicago (ORD) to San Francisco (SFO) flights
United Airlines, American Airlines fly nonstop from Chicago O'Hare International Airport to San Francisco International Airport, with about 116 flights a week in July 2026. The 1,846-mile flight takes about 4h 45m gate to gate.
- Distance
- 1,846 mi ยท 2,971 km
- Flight time
- 4h 45m
- Airlines
- 2
- Seats filled
- 87%
Airlines flying ORD to SFO
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 75 | Airbus A321, Boeing 757-300, Boeing 737-900ER | 718,544 | 4h 45m |
| American Airlines | 41 | Boeing 737-800, Airbus A321, Boeing 737 MAX 8 | 264,604 | 4h 45m |
| Alaska AirlinesSeasonal or ended | n/a | Boeing 737 MAX 9, Boeing 737-900ER | 2,937 | 4h 47m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ORD to SFO flight schedule
26 flight numbers flew this route in August 2026, 18 of them almost daily. The first usually leaves at 6:00am and the last at 10:00pm. 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 246United Airlines | 6:00am | 8:38am | 31 | 93% |
| AA 2543American Airlines | 6:29am | 9:05am | 4 | 85% |
| AA 2885American Airlines | 7:22am | 10:03am | 23 | 74% |
| UA 1116United Airlines | 7:40am | 10:26am | 31 | 88% |
| UA 342United Airlines | 8:40am | 11:25am | 21 | 57% |
| AA 1586American Airlines | 8:43am | 11:25am | 4 | 59% |
| AA 3115American Airlines | 8:45am | 11:26am | 27 | 55% |
| UA 2610United Airlines | 8:50am | 11:38am | 10 | 55% |
| UA 543United Airlines | 10:35am | 1:11pm | 31 | 58% |
| AA 2550American Airlines | 11:05am | 1:46pm | 4 | 40% |
| AA 1851American Airlines | 11:10am | 1:50pm | 27 | 41% |
| UA 1839United Airlines | 12:51pm | 3:35pm | 21 | 67% |
| UA 1577United Airlines | 2:35pm | 5:23pm | 29 | 73% |
| AA 1253American Airlines | 3:20pm | 6:00pm | 31 | 66% |
| UA 1334United Airlines | 3:35pm | 6:24pm | 31 | 63% |
| UA 2251United Airlines | 4:00pm | 6:49pm | 31 | 66% |
| UA 511United Airlines | 4:20pm | 7:12pm | 31 | 61% |
| AA 3141American Airlines | 5:05pm | 7:48pm | 27 | 54% |
| AA 1620American Airlines | 6:09pm | 8:56pm | 4 | 30% |
| UA 2179United Airlines | 6:20pm | 9:18pm | 10 | 46% |
| UA 649United Airlines | 6:20pm | 9:10pm | 21 | 43% |
| UA 1495United Airlines | 8:09pm | 10:55pm | 31 | 47% |
| AA 1649American Airlines | 9:05pm | 11:45pm | 27 | 39% |
| AA 3054American Airlines | 9:17pm | 11:59pm | 4 | 32% |
| UA 2040United Airlines | 9:28pm | 12:16am | 14 | 71% |
| UA 2106United Airlines | 10:00pm | 12:50am | 31 | 74% |
Is ORD to SFO on time?
From September 2025 to August 2026, 66% of 5,649 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 6am were the most punctual (90%), those around 6pm the least (47%). Most delay time was caused by late-arriving aircraft (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 3,883 | 69% | 24 min | 0.8% |
| American Airlines | 1,766 | 60% | 30 min | 1.6% |
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
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 597 | 90% | |
| 7am to 8am | 324 | 87% | |
| 8am to 9am | 457 | 65% | |
| 9am to 10am | 311 | 67% | |
| 10am to 11am | 356 | 57% | |
| 11am to 12pm | 256 | 67% | |
| 12pm to 1pm | 350 | 70% | |
| 2pm to 3pm | 357 | 73% | |
| 3pm to 4pm | 467 | 63% | |
| 4pm to 5pm | 371 | 67% | |
| 5pm to 6pm | 246 | 63% | |
| 6pm to 7pm | 446 | 47% | |
| 7pm to 8pm | 379 | 56% | |
| 8pm to 9pm | 213 | 49% | |
| 9pm to 10pm | 414 | 58% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 511 | 94,392 | |
| September 2025 | 491 | 85,017 | |
| October 2025 | 524 | 90,009 | |
| November 2025 | 403 | 69,279 | |
| December 2025 | 393 | 74,958 | |
| January 2026 | 329 | 56,960 | |
| February 2026 | 356 | 57,620 | |
| March 2026 | 447 | 75,359 | |
| April 2026 | 517 | 82,333 | |
| May 2026 | 559 | 100,281 | |
| June 2026 | 522 | 101,687 | |
| July 2026 | 514 | 98,316 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.