American Airlines flights from Chicago O'Hare (ORD) to Chattanooga (CHA).

FLIGHT SCHEDULE
Direct Flights:
Mon,Wed-Fri,Sun 15:34 Chicago O'Hare (ORD) 3 18:22 Chattanooga (CHA) American Airlines AA 3751 Non-stop Embraer EMB 175 (E75) 1:48 Effective 2026-03-08 through 2026-04-06
Mon,Thu,Fri 18:43 Chicago O'Hare (ORD) 3 21:25 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-02-12 through 2026-02-16
Mon,Thu-Sun 18:43 Chicago O'Hare (ORD) 3 21:25 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-02-19 through 2026-03-06
Sat 18:53 Chicago O'Hare (ORD) 3 21:35 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:42 Operates only on 2026-03-07
Sat 18:57 Chicago O'Hare (ORD) 3 21:36 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:39 Operates only on 2026-02-14
Daily 18:59 Chicago O'Hare (ORD) 3 21:51 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:52 Effective 2026-03-08 through 2026-04-06
Mon-Thu,Sun 19:22 Chicago O'Hare (ORD) 3 22:15 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:53 Valid until 2026-01-05
Tue 21:00 Chicago O'Hare (ORD) 3 23:43 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-02-17 through 2026-02-24
Tue,Wed 21:00 Chicago O'Hare (ORD) 3 23:43 Chattanooga (CHA) American Airlines AA 3977 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-02-25 through 2026-03-04
Wed 14:16 Chicago O'Hare (ORD) 3 17:00 Chattanooga (CHA) American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-02-25 through 2026-03-04
Mon 15:44 Chicago O'Hare (ORD) 3 18:28 Chattanooga (CHA) American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-02-16 through 2026-02-23
Mon,Thu,Fri,Sun 15:44 Chicago O'Hare (ORD) 3 18:28 Chattanooga (CHA) American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-02-26 through 2026-03-06
Sun 20:30 Chicago O'Hare (ORD) 3 23:13 Chattanooga (CHA) American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 1:43 Operates only on 2026-02-15
Daily 19:05 Chicago O'Hare (ORD) 3 21:41 Chattanooga (CHA) American Airlines AA 4337 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-09-09 through 2026-10-04
Daily 13:54 Chicago O'Hare (ORD) 3 16:30 Chattanooga (CHA) American Airlines AA 4344 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-09-09 through 2026-10-04
Daily 13:54 Chicago O'Hare (ORD) 3 16:30 Chattanooga (CHA) American Airlines AA 4469 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-08-05 through 2026-09-08
Daily 18:30 Chicago O'Hare (ORD) 3 21:25 Chattanooga (CHA) American Airlines AA 4511 Non-stop Embraer EMB 175 (E75) 1:55 Effective from 2026-10-05
Daily 19:05 Chicago O'Hare (ORD) 3 21:41 Chattanooga (CHA) American Airlines AA 4511 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-04-07 through 2026-09-08
Fri,Sat 19:22 Chicago O'Hare (ORD) 3 22:15 Chattanooga (CHA) American Airlines AA 4511 Non-stop Embraer EMB 175 (E75) 1:53 Valid until 2026-01-03
Daily 13:54 Chicago O'Hare (ORD) 3 16:30 Chattanooga (CHA) American Airlines AA 4661 Non-stop Embraer EMB 175 (E75) 1:36 Effective 2026-04-07 through 2026-08-04
Daily 13:10 Chicago O'Hare (ORD) 3 15:53 Chattanooga (CHA) American Airlines AA 4803 Non-stop Embraer EMB 175 (E75) 1:43 Effective from 2026-10-05

A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at Chattanooga airport (CHA).
The flight distance is 501 miles, or 806 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 1:36 and 1:55.

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FLIGHT SCHEDULE

Direct Flights:

American Airlines AA3751

15:34

Chicago O'Hare (ORD) 3

18:22

Chattanooga (CHA)

Effective 2026-03-08 through 2026-04-06

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:48, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

18:43

Chicago O'Hare (ORD) 3

21:25

Chattanooga (CHA)

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:42, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

18:43

Chicago O'Hare (ORD) 3

21:25

Chattanooga (CHA)

Effective 2026-02-19 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 1:42, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

18:53

Chicago O'Hare (ORD) 3

21:35

Chattanooga (CHA)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:42, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

18:57

Chicago O'Hare (ORD) 3

21:36

Chattanooga (CHA)

Operates only on 2026-02-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:39, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

18:59

Chicago O'Hare (ORD) 3

21:51

Chattanooga (CHA)

Effective 2026-03-08 through 2026-04-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:52, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

19:22

Chicago O'Hare (ORD) 3

22:15

Chattanooga (CHA)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 1:53, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

21:00

Chicago O'Hare (ORD) 3

23:43

Chattanooga (CHA)

Effective 2026-02-17 through 2026-02-24

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:43, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3977

21:00

Chicago O'Hare (ORD) 3

23:43

Chattanooga (CHA)

Effective 2026-02-25 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:43, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

14:16

Chicago O'Hare (ORD) 3

17:00

Chattanooga (CHA)

Effective 2026-02-25 through 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:44, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

15:44

Chicago O'Hare (ORD) 3

18:28

Chattanooga (CHA)

Effective 2026-02-16 through 2026-02-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:44, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

15:44

Chicago O'Hare (ORD) 3

18:28

Chattanooga (CHA)

Effective 2026-02-26 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:44, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

20:30

Chicago O'Hare (ORD) 3

23:13

Chattanooga (CHA)

Operates only on 2026-02-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:43, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4337

19:05

Chicago O'Hare (ORD) 3

21:41

Chattanooga (CHA)

Effective 2026-09-09 through 2026-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:36, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4344

13:54

Chicago O'Hare (ORD) 3

16:30

Chattanooga (CHA)

Effective 2026-09-09 through 2026-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:36, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4469

13:54

Chicago O'Hare (ORD) 3

16:30

Chattanooga (CHA)

Effective 2026-08-05 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:36, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4511

18:30

Chicago O'Hare (ORD) 3

21:25

Chattanooga (CHA)

Effective from 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:55, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4511

19:05

Chicago O'Hare (ORD) 3

21:41

Chattanooga (CHA)

Effective 2026-04-07 through 2026-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:36, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4511

19:22

Chicago O'Hare (ORD) 3

22:15

Chattanooga (CHA)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 1:53, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4661

13:54

Chicago O'Hare (ORD) 3

16:30

Chattanooga (CHA)

Effective 2026-04-07 through 2026-08-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:36, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4803

13:10

Chicago O'Hare (ORD) 3

15:53

Chattanooga (CHA)

Effective from 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:43, non-stop
Embraer EMB 175 (E75)

A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at Chattanooga airport (CHA).
The flight distance is 501 miles, or 806 km.
The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 1:36 and 1:55.

All ORD-CHA flights

All American Airlines flights

Return (CHA-ORD) flights

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