American Airlines flight AA 3821: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 07:05 Chicago O'Hare (ORD) 3 10:35 Boston Logan (BOS) B
AA 3821 Non-stop Embraer EMB 175 (E75) 2:30 Valid until 2025-05-04
Daily 07:37 Chicago O'Hare (ORD) 3 11:12 Boston Logan (BOS) B
AA 3821 Non-stop Embraer EMB 175 (E75) 2:35 Effective 2025-05-05 through 2025-05-24
Daily 07:37 Chicago O'Hare (ORD) 3 11:12 Boston Logan (BOS) B
AA 3821 Non-stop Embraer EMB 175 (E75) 2:35 Effective 2025-05-26 through 2025-06-04
Sat 09:50 Chicago O'Hare (ORD) 3 13:20 Boston Logan (BOS) B
AA 3821 Non-stop Embraer EMB 175 (E75) 2:30 Valid until 2025-05-03
Tue,Fri 12:29 Tampa (TPA) 13:24 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:55 Effective 2025-07-01 through 2025-07-04
Daily 12:30 Tampa (TPA) 13:25 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:55 Effective 2025-06-05 through 2025-06-30
Wed,Thu 12:30 Tampa (TPA) 13:25 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:55 Effective 2025-07-02 through 2025-07-03
Daily 12:30 Tampa (TPA) 13:27 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:57 Effective 2025-07-05 through 2025-08-05
Daily 14:50 Chicago O'Hare (ORD) 3 16:51 Indianapolis (IND)
AA 3821 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:01 Effective 2026-01-06 through 2026-02-11
Daily 14:50 Chicago O'Hare (ORD) 3 16:47 Indianapolis (IND)
AA 3821 Non-stop Embraer EMB 170 / EMB 175 (E70) 0:57 Effective from 2026-02-12
Daily 19:36 Indianapolis (IND) 19:50 Chicago O'Hare (ORD) 3
AA 3821 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:14 Effective 2026-01-06 through 2026-02-11
Daily 20:16 Tampa (TPA) 21:08 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:52 Effective 2025-09-03 through 2025-10-05
Daily 20:17 Tampa (TPA) 21:10 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:53 Effective 2025-10-06 through 2025-11-01
Daily 20:24 Tampa (TPA) 21:19 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:55 Effective 2025-08-06 through 2025-09-02
Daily 20:27 Tampa (TPA) 21:23 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:56 Effective 2025-12-03 through 2025-12-17
Daily 20:45 Tampa (TPA) 21:42 Nashville (BNA)
AA 3821 Non-stop Embraer EMB 175 (E75) 1:57 Effective 2025-11-02 through 2025-12-02
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This flight number is listed as serving the following routes:


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American Airlines flight AA 3821: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA3821
07:05
Chicago O'Hare (ORD) 3

10:35
Boston Logan (BOS) B
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
07:37
Chicago O'Hare (ORD) 3

11:12
Boston Logan (BOS) B
Effective 2025-05-05 through 2025-05-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:35, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
07:37
Chicago O'Hare (ORD) 3

11:12
Boston Logan (BOS) B
Effective 2025-05-26 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:35, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
09:50
Chicago O'Hare (ORD) 3

13:20
Boston Logan (BOS) B
Valid until 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
12:29
Tampa (TPA)

13:24
Nashville (BNA)
Effective 2025-07-01 through 2025-07-04
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
12:30
Tampa (TPA)

13:25
Nashville (BNA)
Effective 2025-06-05 through 2025-06-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
12:30
Tampa (TPA)

13:25
Nashville (BNA)
Effective 2025-07-02 through 2025-07-03
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
12:30
Tampa (TPA)

13:27
Nashville (BNA)
Effective 2025-07-05 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:57, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
14:50
Chicago O'Hare (ORD) 3

16:51
Indianapolis (IND)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:01, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3821
14:50
Chicago O'Hare (ORD) 3

16:47
Indianapolis (IND)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:57, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3821
19:36
Indianapolis (IND)

19:50
Chicago O'Hare (ORD) 3
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:14, non-stop
Embraer EMB 170 / EMB 175 (E70)
American Airlines AA3821
20:16
Tampa (TPA)

21:08
Nashville (BNA)
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:52, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
20:17
Tampa (TPA)

21:10
Nashville (BNA)
Effective 2025-10-06 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:53, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
20:24
Tampa (TPA)

21:19
Nashville (BNA)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:55, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
20:27
Tampa (TPA)

21:23
Nashville (BNA)
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Embraer EMB 175 (E75)
American Airlines AA3821
20:45
Tampa (TPA)

21:42
Nashville (BNA)
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:57, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Boston Logan (BOS)
  • Chicago O'Hare (ORD) - Indianapolis (IND)
  • Tampa (TPA) - Nashville (BNA)
All American Airlines flights
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