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

FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 16:15 Chicago O'Hare (ORD) 2 17:43 Saint Louis (STL) 1 ANA NH 7448 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4518)
Mon-Thu,Sat,Sun 16:20 Chicago O'Hare (ORD) 2 17:44 Saint Louis (STL) 1 ANA NH 7448 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 ANA NH 7448 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 ANA NH 7448 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 16:24 Chicago O'Hare (ORD) 2 17:54 Saint Louis (STL) 1 ANA NH 7448 Non-stop Embraer EMB 175 (E7W) 1:30 Valid until 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 ANA NH 7448 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 ANA NH 7448 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 4518)
Daily 19:35 Chicago O'Hare (ORD) 1 21:03 Saint Louis (STL) 1 ANA NH 7448 Non-stop Airbus A319 (319) 1:28 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 485)
Daily 19:40 Chicago O'Hare (ORD) 1 21:04 Saint Louis (STL) 1 ANA NH 7448 Non-stop Airbus A319 (319) 1:24 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 485)
Daily 09:05 Chicago O'Hare (ORD) 2 10:36 Saint Louis (STL) 1 ANA NH 7450 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-02-12 through 2026-03-07 Codeshare flight, operated by United Airlines.(UA 4613)
Daily 09:25 Chicago O'Hare (ORD) 2 11:02 Saint Louis (STL) 1 ANA NH 7450 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 ANA NH 7450 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 ANA NH 7450 Non-stop Canadair CRJ 550 (CR5) 1:37 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4613)
Daily 12:55 Chicago O'Hare (ORD) 2 14:18 Saint Louis (STL) 1 ANA NH 7450 Non-stop Canadair CRJ 550 (CR5) 1:23 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 4534)
Daily 12:55 Chicago O'Hare (ORD) 1 14:18 Saint Louis (STL) 1 ANA NH 7450 Non-stop Airbus A319 (319) 1:23 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 2465)
Tue 13:00 Chicago O'Hare (ORD) 2 14:30 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:30 Operates only on 2026-01-06 Codeshare flight, operated by United Airlines.(UA 3502Z)
Wed 13:00 Chicago O'Hare (ORD) 2 14:30 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:30 Operates only on 2026-02-04 Codeshare flight, operated by United Airlines.(UA 3502)
Daily 13:00 Chicago O'Hare (ORD) 2 14:27 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:27 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 3599)
Mon,Wed,Thu,Sun 13:11 Chicago O'Hare (ORD) 2 14:42 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:31 Effective 2026-03-08 through 2026-03-26 Codeshare flight, operated by United Airlines.(UA 5508)
Fri,Sat 13:12 Chicago O'Hare (ORD) 2 14:43 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:31 Effective 2026-03-13 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 5508)
Tue 13:18 Chicago O'Hare (ORD) 2 14:49 Saint Louis (STL) 1 ANA NH 7450 Non-stop Embraer EMB 175 (E7W) 1:31 Effective 2026-03-10 through 2026-03-24 Codeshare flight, operated by United Airlines.(UA 5508)
Thu 15:00 Chicago O'Hare (ORD) 2 16:27 Saint Louis (STL) 1 ANA NH 7450 Non-stop Canadair CRJ 550 (CR5) 1:27 Valid until 2026-01-01 Codeshare flight, operated by United Airlines.(UA 4518)
Daily 10:50 Chicago O'Hare (ORD) 2 12:21 Saint Louis (STL) 1 ANA NH 7588 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 4491)
Daily 10:50 Chicago O'Hare (ORD) 2 12:20 Saint Louis (STL) 1 ANA NH 7588 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-04-30 through 2026-05-20 Codeshare flight, operated by United Airlines.(UA 4491)
Daily 10:50 Chicago O'Hare (ORD) 2 12:20 Saint Louis (STL) 1 ANA NH 7588 Non-stop Embraer EMB 175 (E7W) 1:30 Effective from 2026-05-21 Codeshare flight, operated by United Airlines.(UA 3495)
Daily 10:52 Chicago O'Hare (ORD) 2 12:29 Saint Louis (STL) 1 ANA NH 7588 Non-stop Canadair CRJ 550 (CR5) 1:37 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4491)
Daily 10:56 Chicago O'Hare (ORD) 2 12:27 Saint Louis (STL) 1 ANA NH 7588 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-03-05 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4491)
Daily 10:56 Chicago O'Hare (ORD) 2 12:25 Saint Louis (STL) 1 ANA NH 7588 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4491)
Daily 12:56 Chicago O'Hare (ORD) 2 14:26 Saint Louis (STL) 1 ANA NH 7588 Non-stop Embraer EMB 175 (E7W) 1:30 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 3680)
Daily 17:50 Chicago O'Hare (ORD) 2 19:18 Saint Louis (STL) 1 ANA NH 7590 Non-stop Canadair CRJ 550 (CR5) 1:28 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 4416)
Daily 17:50 Chicago O'Hare (ORD) 2 19:14 Saint Louis (STL) 1 ANA NH 7590 Non-stop Canadair CRJ 550 (CR5) 1:24 Effective 2026-02-12 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4416)
Daily 17:55 Chicago O'Hare (ORD) 2 19:26 Saint Louis (STL) 1 ANA NH 7590 Non-stop Canadair CRJ 550 (CR5) 1:31 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4416)
Daily 17:59 Chicago O'Hare (ORD) 2 19:27 Saint Louis (STL) 1 ANA NH 7590 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective 2026-01-06 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4416)
Daily 18:00 Chicago O'Hare (ORD) 2 19:25 Saint Louis (STL) 1 ANA NH 7590 Non-stop Canadair CRJ 550 (CR5) 1:25 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 4416)

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 1:23 and 1:37.

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FLIGHT SCHEDULE

Direct Codeshare Flights:

ANA NH7448

16:15

Chicago O'Hare (ORD) 2

17:43

Saint Louis (STL) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4518)

Duration: 1:28, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7448

16:20

Chicago O'Hare (ORD) 2

17:44

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4518)

Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7448

16:20

Chicago O'Hare (ORD) 2

17:45

Saint Louis (STL) 1

Effective 2026-02-13 through 2026-02-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 3577)

Duration: 1:25, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7448

16:20

Chicago O'Hare (ORD) 2

17:44

Saint Louis (STL) 1

Effective 2026-03-05 through 2026-03-07

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 6017)

Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7448

16:24

Chicago O'Hare (ORD) 2

17:54

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 5873)

Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7448

16:35

Chicago O'Hare (ORD) 2

17:59

Saint Louis (STL) 1

Effective 2026-03-08 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 6017)

Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7448

16:40

Chicago O'Hare (ORD) 2

18:09

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4518)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7448

19:35

Chicago O'Hare (ORD) 1

21:03

Saint Louis (STL) 1

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 485)

Duration: 1:28, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

ANA NH7448

19:40

Chicago O'Hare (ORD) 1

21:04

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 485)

Duration: 1:24, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

ANA NH7450

09:05

Chicago O'Hare (ORD) 2

10:36

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4613)

Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7450

09:25

Chicago O'Hare (ORD) 2

11:02

Saint Louis (STL) 1

Effective 2026-01-07 through 2026-02-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4613)

Duration: 1:37, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7450

09:25

Chicago O'Hare (ORD) 2

11:02

Saint Louis (STL) 1

Effective 2026-02-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4613)

Duration: 1:37, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7450

10:50

Chicago O'Hare (ORD) 2

12:27

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue

Wed

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4613)

Duration: 1:37, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7450

12:55

Chicago O'Hare (ORD) 2

14:18

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4534)

Duration: 1:23, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7450

12:55

Chicago O'Hare (ORD) 1

14:18

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2465)

Duration: 1:23, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

ANA NH7450

13:00

Chicago O'Hare (ORD) 2

14:30

Saint Louis (STL) 1

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines.(UA 3502Z)

Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

13:00

Chicago O'Hare (ORD) 2

14:30

Saint Louis (STL) 1

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 3502)

Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

13:00

Chicago O'Hare (ORD) 2

14:27

Saint Louis (STL) 1

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 3599)

Duration: 1:27, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

13:11

Chicago O'Hare (ORD) 2

14:42

Saint Louis (STL) 1

Effective 2026-03-08 through 2026-03-26

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 5508)

Duration: 1:31, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

13:12

Chicago O'Hare (ORD) 2

14:43

Saint Louis (STL) 1

Effective 2026-03-13 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 5508)

Duration: 1:31, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

13:18

Chicago O'Hare (ORD) 2

14:49

Saint Louis (STL) 1

Effective 2026-03-10 through 2026-03-24

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 5508)

Duration: 1:31, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7450

15:00

Chicago O'Hare (ORD) 2

16:27

Saint Louis (STL) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4518)

Duration: 1:27, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

10:50

Chicago O'Hare (ORD) 2

12:21

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4491)

Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

10:50

Chicago O'Hare (ORD) 2

12:20

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4491)

Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

10:50

Chicago O'Hare (ORD) 2

12:20

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 3495)

Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7588

10:52

Chicago O'Hare (ORD) 2

12:29

Saint Louis (STL) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4491)

Duration: 1:37, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

10:56

Chicago O'Hare (ORD) 2

12:27

Saint Louis (STL) 1

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4491)

Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

10:56

Chicago O'Hare (ORD) 2

12:25

Saint Louis (STL) 1

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4491)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7588

12:56

Chicago O'Hare (ORD) 2

14:26

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 3680)

Duration: 1:30, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

ANA NH7590

17:50

Chicago O'Hare (ORD) 2

19:18

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4416)

Duration: 1:28, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7590

17:50

Chicago O'Hare (ORD) 2

19:14

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4416)

Duration: 1:24, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7590

17:55

Chicago O'Hare (ORD) 2

19:26

Saint Louis (STL) 1

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4416)

Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7590

17:59

Chicago O'Hare (ORD) 2

19:27

Saint Louis (STL) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4416)

Duration: 1:28, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

ANA NH7590

18:00

Chicago O'Hare (ORD) 2

19:25

Saint Louis (STL) 1

Effective from 2026-04-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4416)

Duration: 1:25, 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 1:23 and 1:37.

All ORD-STL flights

All ANA flights

Return (STL-ORD) flights

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