American Airlines flight AA 3991: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:44 Fargo (FAR) 10:34 Phoenix Sky Harbor (PHX) 4
AA 3991 Non-stop Embraer EMB 175 (E75) 3:50 Effective 2026-02-12 through 2026-03-07
Daily 07:47 Fargo (FAR) 10:39 Phoenix Sky Harbor (PHX) 4
AA 3991 Non-stop Embraer EMB 175 (E75) 3:52 Effective 2026-01-06 through 2026-02-11
Daily 07:55 Fargo (FAR) 10:39 Phoenix Sky Harbor (PHX) 4
AA 3991 Non-stop Embraer EMB 175 (E75) 3:44 Valid until 2026-01-05
Daily 08:00 Fargo (FAR) 09:38 Phoenix Sky Harbor (PHX) 4
AA 3991 Non-stop Embraer EMB 175 (E75) 3:38 Effective 2026-03-08 through 2026-04-06
Daily 08:00 Chicago O'Hare (ORD) 3 10:09 Indianapolis (IND)
AA 3991 Non-stop Embraer EMB 175 (E75) 1:09 Effective from 2026-10-05
Daily 10:56 Indianapolis (IND) 11:10 Chicago O'Hare (ORD) 3
AA 3991 Non-stop Embraer EMB 175 (E75) 1:14 Effective from 2026-10-05
Daily 13:05 Charlotte (CLT) 14:21 Appleton (ATW)
AA 3991 Non-stop Embraer EMB 175 (E75) 2:16 Effective 2026-09-09 through 2026-10-04
Daily 13:39 Charlotte (CLT) 14:55 Appleton (ATW)
AA 3991 Non-stop Embraer EMB 175 (E75) 2:16 Effective 2026-08-05 through 2026-09-08
Daily 15:40 Appleton (ATW) 18:59 Charlotte (CLT)
AA 3991 Non-stop Embraer EMB 175 (E75) 2:19 Effective 2026-08-05 through 2026-09-08
Daily 16:19 Appleton (ATW) 19:40 Charlotte (CLT)
AA 3991 Non-stop Embraer EMB 175 (E75) 2:21 Effective 2026-09-09 through 2026-10-04
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3991: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3991
07:44
Fargo (FAR)

10:34
Phoenix Sky Harbor (PHX) 4
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:50, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
07:47
Fargo (FAR)

10:39
Phoenix Sky Harbor (PHX) 4
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:52, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
07:55
Fargo (FAR)

10:39
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:44, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
08:00
Fargo (FAR)

09:38
Phoenix Sky Harbor (PHX) 4
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:38, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
08:00
Chicago O'Hare (ORD) 3

10:09
Indianapolis (IND)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:09, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
10:56
Indianapolis (IND)

11:10
Chicago O'Hare (ORD) 3
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:14, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
13:05
Charlotte (CLT)

14:21
Appleton (ATW)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
13:39
Charlotte (CLT)

14:55
Appleton (ATW)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
15:40
Appleton (ATW)

18:59
Charlotte (CLT)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA3991
16:19
Appleton (ATW)

19:40
Charlotte (CLT)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Charlotte (CLT) - Appleton (ATW)
  • Chicago O'Hare (ORD) - Indianapolis (IND)
  • Fargo (FAR) - Phoenix Sky Harbor (PHX)
All American Airlines flights
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