American Airlines flight AA 3634: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 05:47 Huntsville (HSV) 08:20 Charlotte (CLT)
AA 3634 Non-stop Embraer EMB 175 (E75) 1:33 Effective 2025-09-03 through 2025-10-05
Mon-Fri,Sun 06:00 Huntsville (HSV) 08:09 Dallas Fort Worth (DFW)
AA 3634 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2025-06-06 through 2025-08-05
Daily 06:58 Lansing (LAN) 07:30 Chicago O'Hare (ORD) 3
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:32 Effective 2025-12-18 through 2026-01-05
Tue 07:09 Lansing (LAN) 07:30 Chicago O'Hare (ORD) 3
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:21 Operates only on 2026-01-06
Daily 07:17 Huntsville (HSV) 09:20 Dallas Fort Worth (DFW)
AA 3634 Non-stop Embraer EMB 175 (E75) 2:03 Effective 2025-08-06 through 2025-09-02
Daily 08:00 El Paso (ELP) 08:27 Phoenix Sky Harbor (PHX) 4
AA 3634 Non-stop Embraer EMB 175 (E75) 1:27 Valid until 2025-05-04
Daily 09:40 Chicago O'Hare (ORD) 3 10:55 La Crosse (LSE)
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:15 Effective 2025-11-02 through 2025-12-02
Daily 11:28 La Crosse (LSE) 12:40 Chicago O'Hare (ORD) 3
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:12 Effective 2025-11-02 through 2025-12-02
Daily 11:40 Chicago O'Hare (ORD) 3 13:21 Omaha (OMA)
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:41 Effective 2025-10-06 through 2025-10-25
Daily 14:32 Omaha (OMA) 16:10 Chicago O'Hare (ORD) 3
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:38 Effective 2025-10-06 through 2025-11-01
Daily 14:50 Chicago O'Hare (ORD) 3 16:39 Kalamazoo/Battle Creek (AZO)
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 0:49 Effective from 2026-02-12
Daily 17:35 Kalamazoo/Battle Creek (AZO) 18:00 Chicago O'Hare (ORD) 3
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:25 Effective from 2026-02-12
Daily 20:37 Chicago O'Hare (ORD) 3 22:48 Lansing (LAN)
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:11 Effective 2025-05-05 through 2025-05-23
Daily 20:37 Chicago O'Hare (ORD) 3 22:48 Lansing (LAN)
AA 3634 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:11 Effective 2025-05-25 through 2025-06-04
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3634: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3634
05:47
Huntsville (HSV)

08:20
Charlotte (CLT)
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:33, non-stop
Embraer EMB 175 (E75)
American Airlines AA3634
06:00
Huntsville (HSV)

08:09
Dallas Fort Worth (DFW)
Effective 2025-06-06 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
American Airlines AA3634
06:58
Lansing (LAN)

07:30
Chicago O'Hare (ORD) 3
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:32, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
07:09
Lansing (LAN)

07:30
Chicago O'Hare (ORD) 3
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:21, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
07:17
Huntsville (HSV)

09:20
Dallas Fort Worth (DFW)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:03, non-stop
Embraer EMB 175 (E75)
American Airlines AA3634
08:00
El Paso (ELP)

08:27
Phoenix Sky Harbor (PHX) 4
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Embraer EMB 175 (E75)
American Airlines AA3634
09:40
Chicago O'Hare (ORD) 3

10:55
La Crosse (LSE)
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:15, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
11:28
La Crosse (LSE)

12:40
Chicago O'Hare (ORD) 3
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:12, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
11:40
Chicago O'Hare (ORD) 3

13:21
Omaha (OMA)
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:41, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
14:32
Omaha (OMA)

16:10
Chicago O'Hare (ORD) 3
Effective 2025-10-06 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:38, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
14:50
Chicago O'Hare (ORD) 3

16:39
Kalamazoo/Battle Creek (AZO)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:49, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
17:35
Kalamazoo/Battle Creek (AZO)

18:00
Chicago O'Hare (ORD) 3
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:25, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
20:37
Chicago O'Hare (ORD) 3

22:48
Lansing (LAN)
Effective 2025-05-05 through 2025-05-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:11, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3634
20:37
Chicago O'Hare (ORD) 3

22:48
Lansing (LAN)
Effective 2025-05-25 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:11, non-stop
Embraer EMB 170 / EMB 175 (E70)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - La Crosse (LSE)
  • Chicago O'Hare (ORD) - Omaha (OMA)
  • El Paso (ELP) - Phoenix Sky Harbor (PHX)
  • Huntsville (HSV) - Charlotte (CLT)
  • Huntsville (HSV) - Dallas Fort Worth (DFW)
  • Kalamazoo/Battle Creek (AZO) - Chicago O'Hare (ORD)
  • Lansing (LAN) - Chicago O'Hare (ORD)
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