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

FLIGHT SCHEDULE
Direct Flights:
Tue 07:35 Chattanooga (CHA) 08:40 Chicago O'Hare (ORD) 3 American Airlines AA 3695 Non-stop Embraer EMB 175 (E75) 2:05 Operates only on 2026-01-06
Mon,Wed-Fri,Sun 18:52 Chattanooga (CHA) 20:04 Chicago O'Hare (ORD) 3 American Airlines AA 3751 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-03-08 through 2026-04-06
Mon,Wed-Fri 07:35 Chattanooga (CHA) 08:40 Chicago O'Hare (ORD) 3 American Airlines AA 3975 Non-stop Embraer EMB 175 (E75) 2:05 Valid until 2026-01-05
Wed 17:40 Chattanooga (CHA) 18:52 Chicago O'Hare (ORD) 3 American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-02-25 through 2026-03-04
Mon 18:58 Chattanooga (CHA) 20:10 Chicago O'Hare (ORD) 3 American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-02-16 through 2026-02-23
Mon,Thu,Fri,Sun 18:58 Chattanooga (CHA) 20:10 Chicago O'Hare (ORD) 3 American Airlines AA 4212 Non-stop Embraer EMB 175 (E75) 2:12 Effective 2026-02-26 through 2026-03-06
Mon,Fri-Sun 08:00 Chattanooga (CHA) 09:10 Chicago O'Hare (ORD) 3 American Airlines AA 4258 Non-stop Embraer EMB 175 (E75) 2:10 Effective 2026-02-13 through 2026-02-20
Mon,Thu,Fri,Sun 08:00 Chattanooga (CHA) 09:10 Chicago O'Hare (ORD) 3 American Airlines AA 4258 Non-stop Embraer EMB 175 (E75) 2:10 Effective 2026-02-22 through 2026-03-06
Tue,Wed,Sat 08:01 Chattanooga (CHA) 09:12 Chicago O'Hare (ORD) 3 American Airlines AA 4258 Non-stop Embraer EMB 175 (E75) 2:11 Effective 2026-02-17 through 2026-03-07
Daily 08:03 Chattanooga (CHA) 09:10 Chicago O'Hare (ORD) 3 American Airlines AA 4258 Non-stop Embraer EMB 175 (E75) 2:07 Effective 2026-03-08 through 2026-04-06
Daily 07:25 Chattanooga (CHA) 08:25 Chicago O'Hare (ORD) 3 American Airlines AA 4338 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-09-09 through 2026-10-04
Daily 17:00 Chattanooga (CHA) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 4346 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-09-09 through 2026-10-04
Daily 17:00 Chattanooga (CHA) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 4470 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-08-05 through 2026-09-08
Daily 07:25 Chattanooga (CHA) 08:25 Chicago O'Hare (ORD) 3 American Airlines AA 4512 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-04-07 through 2026-09-08
Sat,Sun 07:35 Chattanooga (CHA) 08:50 Chicago O'Hare (ORD) 3 American Airlines AA 4512 Non-stop Embraer EMB 175 (E75) 2:15 Valid until 2026-01-04
Daily 08:06 Chattanooga (CHA) 09:10 Chicago O'Hare (ORD) 3 American Airlines AA 4512 Non-stop Embraer EMB 175 (E75) 2:04 Effective from 2026-10-05
Daily 17:00 Chattanooga (CHA) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 4661 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-04-07 through 2026-08-04
Daily 16:56 Chattanooga (CHA) 18:00 Chicago O'Hare (ORD) 3 American Airlines AA 4803 Non-stop Embraer EMB 175 (E75) 2:04 Effective from 2026-10-05

A domestic route departing from the Chattanooga airport (CHA) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 501 miles, or 806 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . 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 2:00 and 2:15.

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FLIGHT SCHEDULE

Direct Flights:

American Airlines AA3695

07:35

Chattanooga (CHA)

08:40

Chicago O'Hare (ORD) 3

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3751

18:52

Chattanooga (CHA)

20:04

Chicago O'Hare (ORD) 3

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

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:12, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA3975

07:35

Chattanooga (CHA)

08:40

Chicago O'Hare (ORD) 3

Valid until 2026-01-05

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:05, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

17:40

Chattanooga (CHA)

18:52

Chicago O'Hare (ORD) 3

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

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:12, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

18:58

Chattanooga (CHA)

20:10

Chicago O'Hare (ORD) 3

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:12, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4212

18:58

Chattanooga (CHA)

20:10

Chicago O'Hare (ORD) 3

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:12, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4258

08:00

Chattanooga (CHA)

09:10

Chicago O'Hare (ORD) 3

Effective 2026-02-13 through 2026-02-20

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 2:10, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4258

08:00

Chattanooga (CHA)

09:10

Chicago O'Hare (ORD) 3

Effective 2026-02-22 through 2026-03-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:10, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4258

08:01

Chattanooga (CHA)

09:12

Chicago O'Hare (ORD) 3

Effective 2026-02-17 through 2026-03-07

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:11, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4258

08:03

Chattanooga (CHA)

09:10

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:07, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4338

07:25

Chattanooga (CHA)

08:25

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4346

17:00

Chattanooga (CHA)

18:00

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4470

17:00

Chattanooga (CHA)

18:00

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4512

07:25

Chattanooga (CHA)

08:25

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4512

07:35

Chattanooga (CHA)

08:50

Chicago O'Hare (ORD) 3

Valid until 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 2:15, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4512

08:06

Chattanooga (CHA)

09:10

Chicago O'Hare (ORD) 3

Effective from 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:04, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4661

17:00

Chattanooga (CHA)

18:00

Chicago O'Hare (ORD) 3

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

Direct Flights:

American Airlines AA4803

16:56

Chattanooga (CHA)

18:00

Chicago O'Hare (ORD) 3

Effective from 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:04, non-stop
Embraer EMB 175 (E75)

A domestic route departing from the Chattanooga airport (CHA) and arriving at Chicago O'Hare airport (ORD).
The flight distance is 501 miles, or 806 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . 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 2:00 and 2:15.

All CHA-ORD flights

All American Airlines flights

Return (ORD-CHA) flights

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