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

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 14:57 Chicago O'Hare (ORD) 3 16:23 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Embraer EMB 175 (E75) 1:26 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 4595)
Thu,Fri,Sun 16:36 Chicago O'Hare (ORD) 3 18:02 Saint Louis (STL) 1
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:25 Effective 2026-03-10 through 2026-03-31
Codeshare flight, operated by American Airlines.(AA 6235)
Mon 16:37 Chicago O'Hare (ORD) 3 17:58 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Embraer EMB 175 (E75) 1:21 Operates only on 2026-02-16
Codeshare flight, operated by American Airlines.(AA 4539)
Sat 16:38 Chicago O'Hare (ORD) 3 18:04 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:26 Operates only on 2026-02-14
Codeshare flight, operated by American Airlines.(AA 6438)
Daily 16:40 Chicago O'Hare (ORD) 3 18:02 Saint Louis (STL) 1
Cathay Pacific CX 7590 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 16:40 Chicago O'Hare (ORD) 3 17:59 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:19 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 6362)
Daily 16:40 Chicago O'Hare (ORD) 3 18:02 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:22 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 6200)
Daily 16:40 Chicago O'Hare (ORD) 3 18:04 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:24 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 6440)
Sat 16:42 Chicago O'Hare (ORD) 3 18:13 Saint Louis (STL) 1
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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
Cathay Pacific CX 7590 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)
Daily 17:52 Chicago O'Hare (ORD) 3 19:14 Saint Louis (STL) 1
Cathay Pacific CX 7590 Non-stop Canadair CRJ 700 (CR7) 1:22 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 6282)
Daily 20:20 Chicago O'Hare (ORD) 3 21:48 Saint Louis (STL) 1
Cathay Pacific CX 7710 Non-stop Embraer EMB 175 (E75) 1:28 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 3555)




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Cathay Pacific flights from Chicago O'Hare (ORD) to Saint Louis (STL).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Cathay Pacific CX7590
14:57
Chicago O'Hare (ORD) 3

16:23
Saint Louis (STL) 1
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4595)
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:36
Chicago O'Hare (ORD) 3

18:02
Saint Louis (STL) 1
Effective 2026-02-12 through 2026-02-20
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6438)
Duration: 1:26, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:36
Chicago O'Hare (ORD) 3

18:02
Saint Louis (STL) 1
Effective 2026-02-21 through 2026-03-07
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6438)
Duration: 1:26, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:36
Chicago O'Hare (ORD) 3

18:01
Saint Louis (STL) 1
Effective 2026-03-10 through 2026-03-31
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 6235)
Duration: 1:25, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:37
Chicago O'Hare (ORD) 3

17:58
Saint Louis (STL) 1
Operates only on 2026-02-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4539)
Duration: 1:21, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:38
Chicago O'Hare (ORD) 3

18:04
Saint Louis (STL) 1
Operates only on 2026-02-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6438)
Duration: 1:26, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:40
Chicago O'Hare (ORD) 3

18:02
Saint Louis (STL) 1
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6352)
Duration: 1:22, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:40
Chicago O'Hare (ORD) 3

17:59
Saint Louis (STL) 1
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6362)
Duration: 1:19, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:40
Chicago O'Hare (ORD) 3

18:02
Saint Louis (STL) 1
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6200)
Duration: 1:22, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:40
Chicago O'Hare (ORD) 3

18:04
Saint Louis (STL) 1
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6440)
Duration: 1:24, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:42
Chicago O'Hare (ORD) 3

18:13
Saint Louis (STL) 1
Operates only on 2026-01-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6314)
Duration: 1:31, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:42
Chicago O'Hare (ORD) 3

18:13
Saint Louis (STL) 1
Effective 2026-01-24 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6314)
Duration: 1:31, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:44
Chicago O'Hare (ORD) 3

18:03
Saint Louis (STL) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3714)
Duration: 1:19, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:44
Chicago O'Hare (ORD) 3

18:03
Saint Louis (STL) 1
Effective 2026-03-09 through 2026-04-06
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3714)
Duration: 1:19, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:45
Chicago O'Hare (ORD) 3

18:16
Saint Louis (STL) 1
Effective 2026-01-06 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 6314)
Duration: 1:31, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:45
Chicago O'Hare (ORD) 3

18:11
Saint Louis (STL) 1
Effective 2026-02-17 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 6438)
Duration: 1:26, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7590
16:49
Chicago O'Hare (ORD) 3

18:14
Saint Louis (STL) 1
Effective 2026-01-07 through 2026-02-11
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3730)
Duration: 1:25, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Cathay Pacific CX7590
17:52
Chicago O'Hare (ORD) 3

19:14
Saint Louis (STL) 1
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6282)
Duration: 1:22, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Cathay Pacific CX7710
20:20
Chicago O'Hare (ORD) 3

21:48
Saint Louis (STL) 1
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3555)
Duration: 1:28, non-stop
Embraer EMB 175 (E75)
  • 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 1:19 and 1:31.
All ORD-STL flights
All Cathay Pacific flights
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