American Airlines flight AA 4399: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri 06:00 New York LaGuardia (LGA) B 07:13 Boston Logan (BOS) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:13 Effective 2026-03-09 through 2026-04-06
Daily 07:00 Ronald Reagan Washington (DCA) 2 08:27 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:27 Valid until 2026-01-05
Daily 07:00 Ronald Reagan Washington (DCA) 2 08:42 John Glenn Columbus (CMH)
AA 4399 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-02-13 through 2026-03-07
Daily 07:00 Boston Logan (BOS) B 09:21 John Glenn Columbus (CMH)
AA 4399 Non-stop Embraer EMB 175 (E75) 2:21 Effective 2026-05-21 through 2026-07-01
Sun 07:35 Boston Logan (BOS) B 08:57 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:22 Effective 2026-03-08 through 2026-04-05
Mon-Fri 07:50 Boston Logan (BOS) B 09:12 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:22 Effective 2026-03-09 through 2026-04-06
Sat 08:00 Boston Logan (BOS) B 09:22 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:22 Effective 2026-03-14 through 2026-04-04
Daily 09:12 John Glenn Columbus (CMH) 10:46 Ronald Reagan Washington (DCA) 2
AA 4399 Non-stop Embraer EMB 175 (E75) 1:34 Effective 2026-02-12 through 2026-03-07
Daily 09:49 New York LaGuardia (LGA) B 12:46 West Palm Beach (PBI)
AA 4399 Non-stop Embraer EMB 175 (E75) 2:57 Effective from 2026-10-05
Daily 11:21 Boston Logan (BOS) B 12:55 Philadelphia (PHL)
AA 4399 Non-stop Embraer EMB 175 (E75) 1:34 Effective 2026-04-07 through 2026-05-20
Daily 12:00 John Glenn Columbus (CMH) 13:59 Boston Logan (BOS) B
AA 4399 Non-stop Embraer EMB 175 (E75) 1:59 Effective 2026-05-21 through 2026-07-01
Daily 12:39 Ronald Reagan Washington (DCA) 2 14:10 Hyannis (HYA)
AA 4399 Non-stop Embraer EMB 175 (E75) 1:31 Effective 2026-08-05 through 2026-09-08
Daily 13:00 Ronald Reagan Washington (DCA) 2 14:37 John Glenn Columbus (CMH)
AA 4399 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2026-01-06 through 2026-02-11
Daily 13:02 New York LaGuardia (LGA) B 14:32 Charlottesville (CHO)
AA 4399 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:30 Effective 2026-07-02 through 2026-08-04
Daily 13:25 West Palm Beach (PBI) 16:14 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 175 (E75) 2:49 Effective from 2026-10-05
Daily 13:30 New York LaGuardia (LGA) B 15:44 Indianapolis (IND)
AA 4399 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:14 Effective 2026-09-09 through 2026-10-04
Daily 14:41 Hyannis (HYA) 16:24 Ronald Reagan Washington (DCA) 2
AA 4399 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-08-05 through 2026-09-08
Daily 15:02 Charlottesville (CHO) 16:29 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:27 Effective 2026-07-02 through 2026-08-04
Daily 17:23 Indianapolis (IND) 19:28 New York LaGuardia (LGA) B
AA 4399 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:05 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 4399: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA4399
06:00
New York LaGuardia (LGA) B

07:13
Boston Logan (BOS) B
Effective 2026-03-09 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:13, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
07:00
Ronald Reagan Washington (DCA) 2

08:27
New York LaGuardia (LGA) B
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
07:00
Ronald Reagan Washington (DCA) 2

08:42
John Glenn Columbus (CMH)
Effective 2026-02-13 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
07:00
Boston Logan (BOS) B

09:21
John Glenn Columbus (CMH)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
07:35
Boston Logan (BOS) B

08:57
New York LaGuardia (LGA) B
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:22, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
07:50
Boston Logan (BOS) B

09:12
New York LaGuardia (LGA) B
Effective 2026-03-09 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:22, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
08:00
Boston Logan (BOS) B

09:22
New York LaGuardia (LGA) B
Effective 2026-03-14 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:22, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
09:12
John Glenn Columbus (CMH)

10:46
Ronald Reagan Washington (DCA) 2
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
09:49
New York LaGuardia (LGA) B

12:46
West Palm Beach (PBI)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:57, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
11:21
Boston Logan (BOS) B

12:55
Philadelphia (PHL)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
12:00
John Glenn Columbus (CMH)

13:59
Boston Logan (BOS) B
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
12:39
Ronald Reagan Washington (DCA) 2

14:10
Hyannis (HYA)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:31, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
13:00
Ronald Reagan Washington (DCA) 2

14:37
John Glenn Columbus (CMH)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
13:02
New York LaGuardia (LGA) B

14:32
Charlottesville (CHO)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA4399
13:25
West Palm Beach (PBI)

16:14
New York LaGuardia (LGA) B
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:49, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
13:30
New York LaGuardia (LGA) B

15:44
Indianapolis (IND)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA4399
14:41
Hyannis (HYA)

16:24
Ronald Reagan Washington (DCA) 2
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4399
15:02
Charlottesville (CHO)

16:29
New York LaGuardia (LGA) B
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA4399
17:23
Indianapolis (IND)

19:28
New York LaGuardia (LGA) B
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:05, non-stop
Embraer EMB 170 / EMB 175 (E70)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - New York LaGuardia (LGA)
  • Boston Logan (BOS) - Philadelphia (PHL)
  • Hyannis (HYA) - Ronald Reagan Washington (DCA)
  • John Glenn Columbus (CMH) - Boston Logan (BOS)
  • John Glenn Columbus (CMH) - Ronald Reagan Washington (DCA)
  • New York LaGuardia (LGA) - Charlottesville (CHO)
  • New York LaGuardia (LGA) - Indianapolis (IND)
  • New York LaGuardia (LGA) - West Palm Beach (PBI)
  • Ronald Reagan Washington (DCA) - New York LaGuardia (LGA)
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