American Airlines flight AA 4456: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 08:14 Philadelphia (PHL) 09:53 Saint Louis (STL) 1
AA 4456 Non-stop Embraer EMB 175 (E75) 2:39 Effective 2025-09-03 through 2025-10-05
Daily 08:15 Philadelphia (PHL) 09:58 Saint Louis (STL) 1
AA 4456 Non-stop Embraer EMB 175 (E75) 2:43 Effective 2025-10-06 through 2025-11-01
Mon,Fri 08:19 Ronald Reagan Washington (DCA) 2 10:51 West Palm Beach (PBI)
AA 4456 Non-stop Embraer EMB 175 (E75) 2:32 Effective 2025-06-13 through 2025-06-20
Fri 08:19 Ronald Reagan Washington (DCA) 2 10:51 West Palm Beach (PBI)
AA 4456 Non-stop Embraer EMB 175 (E75) 2:32 Operates only on 2025-06-27
Mon-Fri,Sun 09:59 Ronald Reagan Washington (DCA) 2 11:41 Boston Logan (BOS) B
AA 4456 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2025-06-06 through 2025-06-12
Tue-Thu,Sun 09:59 Ronald Reagan Washington (DCA) 2 11:41 Boston Logan (BOS) B
AA 4456 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2025-06-15 through 2025-06-22
Mon-Thu,Sun 09:59 Ronald Reagan Washington (DCA) 2 11:41 Boston Logan (BOS) B
AA 4456 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2025-06-23 through 2025-07-03
Thu 10:15 Ronald Reagan Washington (DCA) 2 12:03 Boston Logan (BOS) B
AA 4456 Non-stop Embraer EMB 175 (E75) 1:48 Operates only on 2025-06-05
Fri 14:54 Ronald Reagan Washington (DCA) 2 16:46 Cincinnati (CVG)
AA 4456 Non-stop Embraer EMB 175 (E75) 1:52 Operates only on 2025-07-04
Sat 15:00 Boston Logan (BOS) B 18:35 Miami (MIA)
AA 4456 Non-stop Embraer EMB 175 (E75) 3:35 Effective 2025-05-10 through 2025-05-31
Daily 15:30 New York LaGuardia (LGA) B 17:47 Knoxville (TYS)
AA 4456 Non-stop Embraer EMB 175 (E75) 2:17 Effective 2025-11-02 through 2025-12-02
Daily 15:31 New York LaGuardia (LGA) B 17:50 Knoxville (TYS)
AA 4456 Non-stop Embraer EMB 175 (E75) 2:19 Effective 2025-12-03 through 2025-12-17
Sat 18:44 Philadelphia (PHL) 20:25 Saint Louis (STL) 1
AA 4456 Non-stop Embraer EMB 175 (E75) 2:41 Effective 2025-07-05 through 2025-08-02
Sat 19:00 Philadelphia (PHL) 20:45 Saint Louis (STL) 1
AA 4456 Non-stop Embraer EMB 175 (E75) 2:45 Effective 2025-06-07 through 2025-06-28
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This flight number is listed as serving the following routes:


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American Airlines flight AA 4456: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA4456
08:14
Philadelphia (PHL)

09:53
Saint Louis (STL) 1
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:39, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
08:15
Philadelphia (PHL)

09:58
Saint Louis (STL) 1
Effective 2025-10-06 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:43, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
08:19
Ronald Reagan Washington (DCA) 2

10:51
West Palm Beach (PBI)
Effective 2025-06-13 through 2025-06-20
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:32, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
08:19
Ronald Reagan Washington (DCA) 2

10:51
West Palm Beach (PBI)
Operates only on 2025-06-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:32, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
09:59
Ronald Reagan Washington (DCA) 2

11:41
Boston Logan (BOS) B
Effective 2025-06-06 through 2025-06-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
09:59
Ronald Reagan Washington (DCA) 2

11:41
Boston Logan (BOS) B
Effective 2025-06-15 through 2025-06-22
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
09:59
Ronald Reagan Washington (DCA) 2

11:41
Boston Logan (BOS) B
Effective 2025-06-23 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
10:15
Ronald Reagan Washington (DCA) 2

12:03
Boston Logan (BOS) B
Operates only on 2025-06-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
14:54
Ronald Reagan Washington (DCA) 2

16:46
Cincinnati (CVG)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:52, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
15:00
Boston Logan (BOS) B

18:35
Miami (MIA)
Effective 2025-05-10 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:35, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
15:30
New York LaGuardia (LGA) B

17:47
Knoxville (TYS)
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
15:31
New York LaGuardia (LGA) B

17:50
Knoxville (TYS)
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
18:44
Philadelphia (PHL)

20:25
Saint Louis (STL) 1
Effective 2025-07-05 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:41, non-stop
Embraer EMB 175 (E75)
American Airlines AA4456
19:00
Philadelphia (PHL)

20:45
Saint Louis (STL) 1
Effective 2025-06-07 through 2025-06-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Miami (MIA)
  • New York LaGuardia (LGA) - Knoxville (TYS)
  • Philadelphia (PHL) - Saint Louis (STL)
  • Ronald Reagan Washington (DCA) - Boston Logan (BOS)
  • Ronald Reagan Washington (DCA) - Cincinnati (CVG)
  • Ronald Reagan Washington (DCA) - West Palm Beach (PBI)
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