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.

AA3991 - AAL3991 American Airlines (AA)
CHA Chattanooga United States
Flight CHA to ORD
ORD Chicago United States
Contact Airlines It may not operate on the date requested
Departure Chattanooga Airport
IATA: CHAICAO: KCHA
Scheduled 07:17
None 6
Arrival O'Hare International Airport
IATA: ORDICAO: KORD
Scheduled 08:29
3 G10
AA3991 Detail
  • Type: Domestic Flight
  • Flight Duration: 1 hours 47 minutes
  • Flight Distance: 806 kms / 501 miles
Airline
  • American Airlines
  • IATA: AA
  • ICAO: AAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 76
  • Freight capacity: 3 tons
  • Passenger classes: Economy, Business Class
More Detail
  • 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
American Airlines
FLIGHT NO AA3991
AIRPLANE Embraer 175
ON TIME 10
DELAYED 4
CANCELLED 0
ON TIME 21
DELAYED 9
CANCELLED 0
ON TIME 26
DELAYED 11
CANCELLED 0
ON TIME 29
DELAYED 11
CANCELLED 1
Last 14 days flight data
14 30 60 90
On Time Rate

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
United Airlines UA5592
United Airlines 		14/05/2026
10:42 		2 hours 7 minutes
11:51
GoJet Airlines G74581
GoJet Airlines 		14/05/2026
17:41 		2 hours 19 minutes
19:00
SkyWest Airlines OO5592
SkyWest Airlines 		14/05/2026
10:42 		2 hours 7 minutes
11:51
United Airlines UA4178
United Airlines 		14/05/2026
14:01 		2 hours 9 minutes
15:10
GoJet Airlines G74178
GoJet Airlines 		14/05/2026
14:01 		2 hours 9 minutes
15:10
United Airlines UA4581
United Airlines 		14/05/2026
17:41 		2 hours 19 minutes
19:00
United Airlines UA4392
United Airlines 		14/05/2026
06:30 		2 hours 7 minutes
07:37
American Airlines 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 .