All airlines flying from Saint Louis (STL) to Chicago O'Hare (ORD).
| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Tue,Wed
18:43
Saint Louis (STL) 1
20:18
Chicago O'Hare (ORD) 3 British Airways BA 4871 Non-stop Canadair CRJ 700 (CR7) 1:35 Effective 2026-02-17 through 2026-03-04 Codeshare flight, operated by American Airlines.(AA 6438) |
| Mon,Wed-Fri,Sun
18:44
Saint Louis (STL) 1
20:15
Chicago O'Hare (ORD) 3 British Airways BA 4871 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:31 Effective 2026-01-07 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 3730) |
| Tue
18:46
Saint Louis (STL) 1
20:20
Chicago O'Hare (ORD) 3 British Airways BA 4871 Non-stop Canadair CRJ 700 (CR7) 1:34 Effective 2026-01-06 through 2026-02-10 Codeshare flight, operated by American Airlines.(AA 6314) |
| Daily
06:25
Saint Louis (STL) 1
07:58
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-13 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4423) |
| Mon-Wed,Fri-Sun
06:30
Saint Louis (STL) 1
08:05
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:35 Valid until 2026-01-07 Codeshare flight, operated by United Airlines.(UA 4423) |
| Daily
06:30
Saint Louis (STL) 1
08:05
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-08 through 2026-02-03 Codeshare flight, operated by United Airlines.(UA 4423) |
| Daily
06:30
Saint Louis (STL) 1
08:05
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-02-05 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4423) |
| Thu
06:30
Saint Louis (STL) 1
08:03
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:33 Operates only on 2026-02-12 Codeshare flight, operated by United Airlines.(UA 4423) |
| Daily
06:30
Saint Louis (STL) 1
07:59
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4423) |
| Daily
06:40
Saint Louis (STL) 1
08:00
Chicago O'Hare (ORD) 2 Air Canada AC 4913 Non-stop Canadair CRJ 550 (CR5) 1:20 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 4423) |
| Mon,Thu,Sat
09:55
Saint Louis (STL) 1
11:30
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Valid until 2026-01-03 Codeshare flight, operated by United Airlines.(UA 4597) |
| Daily
13:10
Saint Louis (STL) 1
14:38
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 4592) |
| Daily
13:11
Saint Louis (STL) 1
14:44
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 4428) |
| Daily
13:14
Saint Louis (STL) 1
14:47
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-03-05 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4413) |
| Mon,Wed,Fri,Sun
13:14
Saint Louis (STL) 1
14:43
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-29 through 2026-04-05 Codeshare flight, operated by United Airlines.(UA 4592) |
| Mon,Sat
13:14
Saint Louis (STL) 1
14:43
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-11 through 2026-04-18 Codeshare flight, operated by United Airlines.(UA 4592) |
| Tue,Sun
13:14
Saint Louis (STL) 1
14:43
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-21 through 2026-04-28 Codeshare flight, operated by United Airlines.(UA 4592) |
| Mon,Tue,Thu,Sat,Sun
13:15
Saint Louis (STL) 1
14:50
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-06 through 2026-01-12 Codeshare flight, operated by United Airlines.(UA 4437) |
| Tue,Wed,Fri,Sun
13:15
Saint Louis (STL) 1
14:50
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-14 through 2026-01-20 Codeshare flight, operated by United Airlines.(UA 4437) |
| Mon,Wed,Thu,Sat
13:15
Saint Louis (STL) 1
14:50
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-22 through 2026-01-29 Codeshare flight, operated by United Airlines.(UA 4437) |
| Tue,Wed,Fri,Sun
13:15
Saint Louis (STL) 1
14:50
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-30 through 2026-02-08 Codeshare flight, operated by United Airlines.(UA 4437) |
| Wed
13:15
Saint Louis (STL) 1
14:50
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:35 Operates only on 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4437) |
| Daily
13:27
Saint Louis (STL) 1
14:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:28 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 3528) |
| Tue,Wed,Fri
15:11
Saint Louis (STL) 1
16:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-01-07 through 2026-01-13 Codeshare flight, operated by United Airlines.(UA 3528) |
| Mon,Wed,Thu
15:11
Saint Louis (STL) 1
16:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-01-15 through 2026-01-21 Codeshare flight, operated by United Airlines.(UA 3528) |
| Sat
15:11
Saint Louis (STL) 1
16:54
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:43 Operates only on 2026-01-17 Codeshare flight, operated by United Airlines.(UA 4556) |
| Tue,Fri,Sun
15:11
Saint Louis (STL) 1
16:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-01-23 through 2026-01-27 Codeshare flight, operated by United Airlines.(UA 3528) |
| Sat
15:11
Saint Louis (STL) 1
16:54
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-31 through 2026-02-07 Codeshare flight, operated by United Airlines.(UA 4556) |
| Mon,Thu
15:11
Saint Louis (STL) 1
16:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:44 Effective 2026-02-02 through 2026-02-09 Codeshare flight, operated by United Airlines.(UA 3528) |
| Tue
15:11
Saint Louis (STL) 1
16:55
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:44 Operates only on 2026-02-10 Codeshare flight, operated by United Airlines.(UA 3528) |
| Mon,Tue,Thu,Sat
15:23
Saint Louis (STL) 1
16:53
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-03-31 through 2026-04-07 Codeshare flight, operated by United Airlines.(UA 3528) |
| Tue-Fri,Sun
15:23
Saint Louis (STL) 1
16:53
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-04-08 through 2026-04-19 Codeshare flight, operated by United Airlines.(UA 3528) |
| Mon,Wed-Sat
15:23
Saint Louis (STL) 1
16:53
Chicago O'Hare (ORD) 2 Air Canada AC 4915 Non-stop Embraer EMB 175 (E7W) 1:30 Effective 2026-04-20 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 3528) |
| Tue-Sun
05:00
Saint Louis (STL) 1
06:30
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-03-05 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4537) |
| Tue,Thu
08:26
Saint Louis (STL) 1
09:55
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-07 through 2026-04-09 Codeshare flight, operated by United Airlines.(UA 4608) |
| Wed,Fri
08:26
Saint Louis (STL) 1
09:55
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-15 through 2026-04-17 Codeshare flight, operated by United Airlines.(UA 4608) |
| Thu,Sat
08:26
Saint Louis (STL) 1
09:55
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-23 through 2026-04-25 Codeshare flight, operated by United Airlines.(UA 4608) |
| Daily
16:49
Saint Louis (STL) 1
18:32
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4494) |
| Mon-Fri,Sun
16:49
Saint Louis (STL) 1
18:22
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 4487) |
| Daily
17:02
Saint Louis (STL) 1
18:45
Chicago O'Hare (ORD) 2 Air Canada AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:43 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4526) |
| Daily
17:18
Saint Louis (STL) 1
18:34
Chicago O'Hare (ORD) 1 Air Canada AC 4919 Non-stop Airbus A319 (319) 1:16 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 1744) |
| Daily
10:30
Saint Louis (STL) 1
11:58
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 4395) |
| Mon-Wed,Fri,Sun
11:05
Saint Louis (STL) 1
12:40
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:35 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4405) |
| Daily
11:20
Saint Louis (STL) 1
12:55
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-06 through 2026-02-03 Codeshare flight, operated by United Airlines.(UA 4395) |
| Wed
11:20
Saint Louis (STL) 1
12:57
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Embraer EMB 175 (E7W) 1:37 Operates only on 2026-02-04 Codeshare flight, operated by United Airlines.(UA 3486) |
| Daily
11:20
Saint Louis (STL) 1
12:55
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-02-05 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4395) |
| Daily
11:25
Saint Louis (STL) 1
12:58
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-12 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4395) |
| Daily
11:25
Saint Louis (STL) 1
12:54
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4395) |
| Daily
11:45
Saint Louis (STL) 1
13:12
Chicago O'Hare (ORD) 2 Air Canada AC 4923 Non-stop Canadair CRJ 550 (CR5) 1:27 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 4395) |
| Mon-Wed
07:40
Saint Louis (STL) 1
09:09
Chicago O'Hare (ORD) 1 Air Canada AC 4925 Non-stop Boeing 737-900 (739) 1:29 Effective 2026-03-10 through 2026-03-16 Codeshare flight, operated by United Airlines.(UA 2138) |
- A domestic route departing from the Saint Louis airport (STL) and arriving at Chicago O'Hare airport (ORD).
- The flight distance is 258 miles, or 415 km.
- The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 1:16 and 1:44.
