Austrian flights from Chicago O'Hare (ORD) to Saint Louis (STL).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu-Sun 15:45 Chicago O'Hare (ORD) 2 17:11 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:26 Effective 2024-09-26 through 2024-10-26
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sat 15:45 Chicago O'Hare (ORD) 2 17:15 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2024-11-04 through 2024-12-02
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sat 15:45 Chicago O'Hare (ORD) 2 17:14 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2025-01-08 through 2025-01-17
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sun 15:45 Chicago O'Hare (ORD) 2 17:14 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2025-01-19 through 2025-03-07
Codeshare flight, operated by United Airlines.(UA 4518)
Sat 15:45 Chicago O'Hare (ORD) 2 17:14 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:29 Operates only on 2025-03-08
Codeshare flight, operated by United Airlines.(UA 4518)
Tue-Sun 15:45 Chicago O'Hare (ORD) 2 17:14 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2025-03-30 through 2025-05-04
Codeshare flight, operated by United Airlines.(UA 4518)
Daily 15:45 Chicago O'Hare (ORD) 2 17:14 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective from 2025-05-05
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sat 16:05 Chicago O'Hare (ORD) 2 17:35 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2024-12-04 through 2024-12-18
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Tue,Thu-Sun 16:15 Chicago O'Hare (ORD) 2 17:41 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:26 Valid until 2024-09-24
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sat 16:20 Chicago O'Hare (ORD) 2 17:51 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2024-12-20 through 2025-01-06
Codeshare flight, operated by United Airlines.(UA 4518)
Mon,Wed,Fri,Sat 18:00 Chicago O'Hare (ORD) 2 19:25 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:25 Effective 2025-03-10 through 2025-03-29
Codeshare flight, operated by United Airlines.(UA 4416)
Mon,Wed,Fri,Sat 18:20 Chicago O'Hare (ORD) 2 19:51 Saint Louis (STL) 1
Austrian OS 7735 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2024-10-28 through 2024-11-02
Codeshare flight, operated by United Airlines.(UA 4416)




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Austrian flights from Chicago O'Hare (ORD) to Saint Louis (STL).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:11
Saint Louis (STL) 1
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:15
Saint Louis (STL) 1
Effective 2024-11-04 through 2024-12-02
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:14
Saint Louis (STL) 1
Effective 2025-01-08 through 2025-01-17
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:14
Saint Louis (STL) 1
Effective 2025-01-19 through 2025-03-07
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:14
Saint Louis (STL) 1
Operates only on 2025-03-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:14
Saint Louis (STL) 1
Effective 2025-03-30 through 2025-05-04
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
15:45
Chicago O'Hare (ORD) 2

17:14
Saint Louis (STL) 1
Effective from 2025-05-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
16:05
Chicago O'Hare (ORD) 2

17:35
Saint Louis (STL) 1
Effective 2024-12-04 through 2024-12-18
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
16:15
Chicago O'Hare (ORD) 2

17:41
Saint Louis (STL) 1
Valid until 2024-09-24
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:26, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
16:20
Chicago O'Hare (ORD) 2

17:51
Saint Louis (STL) 1
Effective 2024-12-20 through 2025-01-06
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4518)
Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
18:00
Chicago O'Hare (ORD) 2

19:25
Saint Louis (STL) 1
Effective 2025-03-10 through 2025-03-29
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4416)
Duration: 1:25, non-stop
Canadair CRJ 550 (CR5)
Austrian OS7735
18:20
Chicago O'Hare (ORD) 2

19:51
Saint Louis (STL) 1
Effective 2024-10-28 through 2024-11-02
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 4416)
Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)
  • 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 1:25 and 1:31.
All ORD-STL flights
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