All airlines flying from Chicago O'Hare (ORD) to Saint Louis (STL).
| FLIGHT SCHEDULE |
|---|
| Direct Codeshare Flights: |
| Sat
20:12
Chicago O'Hare (ORD) 2
21:42
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:30 Operates only on 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4596) |
| Mon,Tue,Sat
20:15
Chicago O'Hare (ORD) 2
21:47
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2026-03-31 through 2026-04-06 Codeshare flight, operated by United Airlines.(UA 4596) |
| Tue,Wed,Sun
20:15
Chicago O'Hare (ORD) 2
21:47
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2026-04-08 through 2026-04-14 Codeshare flight, operated by United Airlines.(UA 4596) |
| Mon,Wed,Thu
20:15
Chicago O'Hare (ORD) 2
21:47
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2026-04-16 through 2026-04-22 Codeshare flight, operated by United Airlines.(UA 4596) |
| Wed,Fri
20:15
Chicago O'Hare (ORD) 2
21:47
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:32 Effective 2026-04-24 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4596) |
| Daily
21:10
Chicago O'Hare (ORD) 2
22:43
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:33 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4487) |
| Daily
21:20
Chicago O'Hare (ORD) 2
22:44
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2026-05-21 through 2026-08-17 Codeshare flight, operated by United Airlines.(UA 4576) |
| Mon-Fri,Sun
21:25
Chicago O'Hare (ORD) 2
22:58
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-01-06 through 2026-01-16 Codeshare flight, operated by United Airlines.(UA 4487) |
| Mon-Fri,Sun
21:25
Chicago O'Hare (ORD) 2
22:58
Saint Louis (STL) 1 Air Canada AC 4930 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-01-19 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4487) |
| Daily
15:00
Chicago O'Hare (ORD) 2
16:27
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:27 Valid until 2026-01-04 Codeshare flight, operated by United Airlines.(UA 4518) |
| Daily
16:15
Chicago O'Hare (ORD) 2
17:43
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4518) |
| Daily
16:15
Chicago O'Hare (ORD) 2
17:44
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Embraer EMB 175 (E7W) 1:29 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 5783) |
| Mon-Thu,Sat,Sun
16:20
Chicago O'Hare (ORD) 2
17:44
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 4518) |
| Fri
16:20
Chicago O'Hare (ORD) 2
17:45
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Embraer EMB 175 (E7W) 1:25 Effective 2026-02-13 through 2026-02-27 Codeshare flight, operated by United Airlines.(UA 3577) |
| Thu-Sat
16:20
Chicago O'Hare (ORD) 2
17:44
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2026-03-05 through 2026-03-07 Codeshare flight, operated by United Airlines.(UA 6017) |
| Daily
16:20
Chicago O'Hare (ORD) 2
17:51
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4518) |
| Mon
16:24
Chicago O'Hare (ORD) 2
17:54
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Embraer EMB 175 (E7W) 1:30 Operates only on 2026-01-05 Codeshare flight, operated by United Airlines.(UA 5873) |
| Daily
16:35
Chicago O'Hare (ORD) 2
17:59
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2026-03-08 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 6017) |
| Daily
16:40
Chicago O'Hare (ORD) 2
18:09
Saint Louis (STL) 1 Air Canada AC 4934 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 4518) |
| Daily
21:30
Chicago O'Hare (ORD) 2
22:54
Saint Louis (STL) 1 Air Canada AC 4936 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective from 2026-10-25 Codeshare flight, operated by United Airlines.(UA 4576) |
| Mon,Wed-Fri,Sun
21:33
Chicago O'Hare (ORD) 2
22:59
Saint Louis (STL) 1 Air Canada AC 4936 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2026-02-12 through 2026-03-06 Codeshare flight, operated by United Airlines.(UA 4576) |
| Daily
21:33
Chicago O'Hare (ORD) 2
22:59
Saint Louis (STL) 1 Air Canada AC 4936 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2026-03-07 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4576) |
| Daily
09:04
Chicago O'Hare (ORD) 2
10:27
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:23 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 4613) |
| Daily
09:05
Chicago O'Hare (ORD) 2
10:36
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-02-12 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4613) |
| Daily
09:05
Chicago O'Hare (ORD) 2
10:35
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4613) |
| Daily
09:25
Chicago O'Hare (ORD) 2
11:02
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:37 Effective 2026-01-07 through 2026-02-03 Codeshare flight, operated by United Airlines.(UA 4613) |
| Daily
09:25
Chicago O'Hare (ORD) 2
11:02
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:37 Effective 2026-02-05 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4613) |
| Mon-Wed,Fri-Sun
10:50
Chicago O'Hare (ORD) 2
12:27
Saint Louis (STL) 1 Air Canada AC 4938 Non-stop Canadair CRJ 550 (CR5) 1:37 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4613) |
| Daily
11:40
Chicago O'Hare (ORD) 3
13:06
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:26 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 3815) |
| Daily
11:43
Chicago O'Hare (ORD) 3
13:06
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:23 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 6355) |
| Daily
13:10
Chicago O'Hare (ORD) 3
14:25
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:15 Effective 2026-09-09 through 2026-10-04 Codeshare flight, operated by American Airlines.(AA 4282) |
| Daily
14:50
Chicago O'Hare (ORD) 3
16:13
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:23 Effective 2026-04-07 through 2026-05-20 Codeshare flight, operated by American Airlines.(AA 6399) |
| Daily
14:50
Chicago O'Hare (ORD) 3
16:24
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 175 (E75) 1:34 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 4537) |
| Daily
14:50
Chicago O'Hare (ORD) 3
16:15
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 175 (E75) 1:25 Effective from 2026-10-05 Codeshare flight, operated by American Airlines.(AA 4282) |
| Mon,Thu,Fri,Sun
16:36
Chicago O'Hare (ORD) 3
18:02
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:26 Effective 2026-02-12 through 2026-02-20 Codeshare flight, operated by American Airlines.(AA 6438) |
| Mon,Thu-Sun
16:36
Chicago O'Hare (ORD) 3
18:02
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:26 Effective 2026-02-21 through 2026-03-07 Codeshare flight, operated by American Airlines.(AA 6438) |
| Tue
16:36
Chicago O'Hare (ORD) 3
18:01
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:25 Effective 2026-03-10 through 2026-03-31 Codeshare flight, operated by American Airlines.(AA 6235) |
| Sat
16:38
Chicago O'Hare (ORD) 3
18:04
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:26 Operates only on 2026-02-14 Codeshare flight, operated by American Airlines.(AA 6438) |
| Sat
16:42
Chicago O'Hare (ORD) 3
18:13
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:31 Operates only on 2026-01-10 Codeshare flight, operated by American Airlines.(AA 6314) |
| Sat
16:42
Chicago O'Hare (ORD) 3
18:13
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:31 Effective 2026-01-24 through 2026-02-07 Codeshare flight, operated by American Airlines.(AA 6314) |
| Sun
16:44
Chicago O'Hare (ORD) 3
18:03
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 175 (E75) 1:19 Effective 2026-03-08 through 2026-04-05 Codeshare flight, operated by American Airlines.(AA 3714) |
| Mon,Wed-Sat
16:44
Chicago O'Hare (ORD) 3
18:03
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:19 Effective 2026-03-09 through 2026-04-06 Codeshare flight, operated by American Airlines.(AA 3714) |
| Tue
16:45
Chicago O'Hare (ORD) 3
18:16
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:31 Effective 2026-01-06 through 2026-02-10 Codeshare flight, operated by American Airlines.(AA 6314) |
| Tue,Wed
16:45
Chicago O'Hare (ORD) 3
18:11
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Canadair CRJ 700 (CR7) 1:26 Effective 2026-02-17 through 2026-03-04 Codeshare flight, operated by American Airlines.(AA 6438) |
| Mon,Wed-Fri,Sun
16:49
Chicago O'Hare (ORD) 3
18:14
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:25 Effective 2026-01-07 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 3730) |
| Mon,Tue,Thu-Sun
18:03
Chicago O'Hare (ORD) 3
19:31
Saint Louis (STL) 1 British Airways BA 5150 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:28 Valid until 2026-01-05 Codeshare flight, operated by American Airlines.(AA 3461) |
| Daily
11:40
Chicago O'Hare (ORD) 3
12:57
Saint Louis (STL) 1 British Airways BA 5335 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:17 Effective 2026-07-02 through 2026-08-04 Codeshare flight, operated by American Airlines.(AA 3829) |
| Daily
16:40
Chicago O'Hare (ORD) 3
18:02
Saint Louis (STL) 1 British Airways BA 5335 Non-stop Canadair CRJ 700 (CR7) 1:22 Effective 2026-05-21 through 2026-07-01 Codeshare flight, operated by American Airlines.(AA 6352) |
| Daily
17:52
Chicago O'Hare (ORD) 3
19:14
Saint Louis (STL) 1 British Airways BA 5335 Non-stop Canadair CRJ 700 (CR7) 1:22 Effective 2026-08-05 through 2026-09-08 Codeshare flight, operated by American Airlines.(AA 6282) |
| Mon-Fri,Sun
19:50
Chicago O'Hare (ORD) 3
21:15
Saint Louis (STL) 1 British Airways BA 5335 Non-stop Embraer EMB 175 (E75) 1:25 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by American Airlines.(AA 3742) |
- A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at Saint Louis airport (STL).
- 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 1:14 and 1:37.
