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American Airlines AA3991 Flight Status : Live Tracking & Updates
Domestic flight American Airlines AA3991 takes off from Chattanooga (CHA) United States to Chicago (ORD) United States. It's operated by American Airlines. The plane leaves Chattanooga Airport at 07:17 America/New_York. The flight is expected to land at O'Hare International Airport at 08:29 America/Chicago. The flight will last about 1 hours 47 minutes.
- Type: Domestic Flight
- Flight Duration: 1 hours 47 minutes
- Flight Distance: 806 kms / 501 miles
- American Airlines
- IATA: AA
- ICAO: AAL
- Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
- Service type: Normal passenger
- Seats: 76
- Freight capacity: 3 tons
- Passenger classes: Economy, Business Class
- Aircraft: Embraer 175
- Callsign: F-KALS4
- Departure Timezone: America/New_York
- Arrival Timezone: America/Chicago
- Current Time in Chattanooga: Thursday 2026-05-14 19:38 PM
- Current Time in Chicago: Thursday 2026-05-14 18:38 PM
American Airlines AA3991 Flight Statistics

American Airlines AA3991 Flight Schedule and Histories
| Time | Departure | Arrival | Actual departure | Actual arrival |
|---|---|---|---|---|
|
Thu 07 May
Arrived On time |
Chattanooga (CHA)
2026-05-07T07:17
|
Chicago (ORD)
2026-05-07T08:29
|
2026-05-07T07:11
|
2026-05-07T07:58
|
|
Wed 06 May
Scheduled On time |
Chattanooga (CHA)
2026-05-06T07:13
|
Chicago (ORD)
2026-05-06T08:25
|
||
|
Tue 05 May
Scheduled On time |
Chattanooga (CHA)
2026-05-05T07:13
|
Chicago (ORD)
2026-05-05T08:25
|
||
|
Mon 04 May
Arrived On time |
Chattanooga (CHA)
2026-05-04T07:13
|
Chicago (ORD)
2026-05-04T08:25
|
2026-05-04T07:07
|
2026-05-04T08:07
|
|
Sun 03 May
Departed On time |
Chattanooga (CHA)
2026-05-03T07:13
|
Chicago (ORD)
2026-05-03T08:25
|
2026-05-03T07:18
|
|
|
Tue 14 Apr
Scheduled On time |
Chattanooga (CHA)
2026-04-14T07:13
|
Chicago (ORD)
2026-04-14T08:25
|
||
|
Sun 12 Apr
Arrived On time |
Chattanooga (CHA)
2026-04-12T07:13
|
Chicago (ORD)
2026-04-12T08:25
|
2026-04-12T07:10
|
2026-04-12T08:17
|
|
Sat 11 Apr
Arrived On time |
Chattanooga (CHA)
2026-04-11T07:13
|
Chicago (ORD)
2026-04-11T08:25
|
2026-04-11T07:04
|
2026-04-11T08:01
|
|
Sun 05 Apr
Scheduled Delayed by 23m |
Chattanooga (CHA)
2026-04-05T08:00
|
Chicago (ORD)
2026-04-05T09:38
|
||
|
Fri 03 Apr
Departed On time |
Chattanooga (CHA)
2026-04-03T08:00
|
Chicago (ORD)
2026-04-03T09:38
|
2026-04-03T07:51
|
Flight routes similar to American Airlines AA3991
| Airline | Flight no | Departure | Arrival |
|---|---|---|---|
|
UA5592 United Airlines |
14/05/2026 10:42 |
2 hours 7 minutes 11:51 |
|
G74581 GoJet Airlines |
14/05/2026 17:41 |
2 hours 19 minutes 19:00 |
|
OO5592 SkyWest Airlines |
14/05/2026 10:42 |
2 hours 7 minutes 11:51 |
|
UA4178 United Airlines |
14/05/2026 14:01 |
2 hours 9 minutes 15:10 |
|
G74178 GoJet Airlines |
14/05/2026 14:01 |
2 hours 9 minutes 15:10 |
|
UA4581 United Airlines |
14/05/2026 17:41 |
2 hours 19 minutes 19:00 |
|
UA4392 United Airlines |
14/05/2026 06:30 |
2 hours 7 minutes 07:37 |
|
AA4190 American Airlines |
14/05/2026 18:52 |
2 hours 24 minutes 20:07 |
American Airlines Flight AA3991 FAQs
What is the scheduled flight duration for American Airlines AA3991 flight?
On average, nonstop flight takes 1 hour(s) 47 minutes, with the flight distance of 806 km (501 miles).
What type of aircraft is used for the American Airlines AA3991 flight?
All American Airlines AA3991 flights are operated using Embraer 175 aircraft.
Which terminal the flight American Airlines AA3991 is arriving at?
Flight American Airlines AA3991 arrives in O'Hare International Airport at Terminal 3.
How many American Airlines AA3991 flights are operated a week?
7 flights per week. The Flight American Airlines AA3991 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .
