St Louis (STL) to Chicago (ORD) flights
GoJet Airlines, United Airlines, Envoy Air, SkyWest Airlines, American Airlines, Republic Airline fly nonstop from St. Louis Lambert International Airport to Chicago O'Hare International Airport, with about 111 flights a week in July 2026. The 258-mile flight takes about 1h 30m gate to gate.
- Distance
- 258 mi · 415 km
- Flight time
- 1h 30m
- Airlines
- 6
- Seats filled
- 75%
Airlines flying STL to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| GoJet Airlines | 40 | Bombardier CRJ550 | 83,990 | 1h 31m |
| United Airlines | 22 | Airbus A319, Airbus A320-100/200, Boeing 737-900ER | 61,706 | 1h 30m |
| Envoy Air | 19 | Embraer E170, Embraer E175 | 43,151 | 1h 25m |
| SkyWest Airlines | 14 | Bombardier CRJ700, Embraer E175, Bombardier CRJ550 | 41,113 | 1h 33m |
| American Airlines | 9 | Airbus A319, Boeing 737-800, Boeing 737 MAX 8 | 52,768 | 1h 25m |
| Republic Airline | 7 | Embraer E175, Embraer E170 | 24,788 | 1h 32m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to ORD flight schedule
27 flight numbers flew this route in August 2026, 14 of them almost daily. The first usually leaves at 6:00am and the last at 8:07pm. 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 1926American Airlines | 6:00am | 7:34am | 31 | 79% |
| UA 2805United Airlines | 6:00am | 7:30am | 10 | 89% |
| UA 4423United Airlines · operated by GoJet Airlines | 6:00am | 7:33am | 27 | 85% |
| UA 4570United Airlines · operated by GoJet Airlines | 7:25am | 9:01am | 21 | 76% |
| UA 4183United Airlines · operated by GoJet Airlines | 8:00am | 9:35am | 10 | 72% |
| UA 567United Airlines | 8:00am | 9:34am | 20 | 75% |
| UA 4601United Airlines · operated by GoJet Airlines | 8:50am | 10:26am | 21 | 66% |
| AA 4104American Airlines · operated by Envoy Air | 9:08am | 10:36am | 4 | 95% |
| UA 5572United Airlines · operated by SkyWest Airlines | 9:20am | 10:52am | 10 | 76% |
| UA 4808United Airlines · operated by SkyWest Airlines | 9:30am | 11:00am | 15 | 60% |
| AA 3568American Airlines · operated by Envoy Air | 9:32am | 11:00am | 27 | 82% |
| UA 4517United Airlines · operated by GoJet Airlines | 10:53am | 12:28pm | 28 | 84% |
| UA 4395United Airlines · operated by GoJet Airlines | 11:25am | 1:03pm | 10 | 71% |
| UA 2654United Airlines | 12:59pm | 2:30pm | 21 | 57% |
| UA 1382United Airlines | 1:13pm | 2:43pm | 10 | 72% |
| AA 6352American Airlines · operated by SkyWest Airlines | 1:20pm | 2:59pm | 4 | 64% |
| AA 6355American Airlines · operated by SkyWest Airlines | 1:25pm | 3:01pm | 27 | 50% |
| UA 4452United Airlines · operated by GoJet Airlines | 3:22pm | 5:00pm | 10 | 59% |
| UA 4500United Airlines · operated by GoJet Airlines | 3:32pm | 5:05pm | 20 | 45% |
| AA 4259American Airlines · operated by Envoy Air | 4:54pm | 6:33pm | 27 | 63% |
| UA 541United Airlines | 5:30pm | 7:01pm | 21 | 38% |
| AA 4537American Airlines · operated by Republic Airline | 5:58pm | 7:59pm | 4 | 79% |
| UA 1639United Airlines | 5:59pm | 7:30pm | 10 | 64% |
| UA 4616United Airlines · operated by GoJet Airlines | 6:54pm | 8:30pm | 21 | 49% |
| UA 4165United Airlines · operated by GoJet Airlines | 7:05pm | 8:39pm | 10 | 60% |
| AA 4144American Airlines · operated by Envoy Air | 8:06pm | 9:43pm | 4 | 61% |
| AA 3570American Airlines · operated by Envoy Air | 8:07pm | 9:40pm | 27 | 67% |
Is STL to ORD on time?
From September 2025 to August 2026, 72% of 5,247 flights arrived within 15 minutes of schedule and 3.2% were cancelled. Flights leaving around 6am were the most punctual (85%), those around 3pm the least (65%). Most delay time was caused by late-arriving aircraft (33%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 3,141 | 70% | 30 min | 2.8% |
| American Airlines | 2,106 | 74% | 29 min | 3.9% |
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 | 598 | 85% | |
| 7am to 8am | 345 | 80% | |
| 8am to 9am | 538 | 77% | |
| 9am to 10am | 488 | 78% | |
| 10am to 11am | 278 | 72% | |
| 11am to 12pm | 383 | 70% | |
| 12pm to 1pm | 166 | 67% | |
| 1pm to 2pm | 409 | 65% | |
| 2pm to 3pm | 248 | 69% | |
| 3pm to 4pm | 422 | 65% | |
| 4pm to 5pm | 215 | 62% | |
| 5pm to 6pm | 403 | 67% | |
| 6pm to 7pm | 260 | 58% | |
| 7pm to 8pm | 218 | 58% | |
| 8pm to 9pm | 174 | 58% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 408 | 26,251 | |
| September 2025 | 385 | 26,497 | |
| October 2025 | 412 | 27,364 | |
| November 2025 | 377 | 19,510 | |
| December 2025 | 374 | 19,530 | |
| January 2026 | 351 | 17,214 | |
| February 2026 | 383 | 19,772 | |
| March 2026 | 473 | 27,126 | |
| April 2026 | 502 | 30,178 | |
| May 2026 | 541 | 33,875 | |
| June 2026 | 468 | 29,712 | |
| July 2026 | 495 | 32,947 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.