American Airlines flight AA 4555: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 08:20 Ronald Reagan Washington (DCA) 2 10:08 Knoxville (TYS)
AA 4555 Non-stop Embraer EMB 175 (E75) 1:48 Effective 2026-07-02 through 2026-08-04
Daily 08:40 New York LaGuardia (LGA) B 10:06 Boston Logan (BOS) B
AA 4555 Non-stop Embraer EMB 175 (E75) 1:26 Effective 2026-04-07 through 2026-05-20
Daily 11:03 Knoxville (TYS) 12:40 Ronald Reagan Washington (DCA) 2
AA 4555 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2026-07-02 through 2026-08-04
Fri,Sun 11:20 Boston Logan (BOS) B 15:18 Key West (EYW)
AA 4555 Non-stop Embraer EMB 175 (E75) 3:58 Effective 2026-02-13 through 2026-02-20
Sun 11:30 Boston Logan (BOS) B 15:28 Key West (EYW)
AA 4555 Non-stop Embraer EMB 175 (E75) 3:58 Operates only on 2026-02-22
Mon,Thu,Fri,Sun 13:35 Chicago O'Hare (ORD) 3 16:46 Raleigh/Durham (RDU) 2
AA 4555 Non-stop Embraer EMB 175 (E75) 2:11 Effective 2026-01-08 through 2026-02-09
Tue,Wed,Sat 13:55 Chicago O'Hare (ORD) 3 17:06 Raleigh/Durham (RDU) 2
AA 4555 Non-stop Embraer EMB 175 (E75) 2:11 Effective 2026-01-06 through 2026-02-11
Daily 14:54 Ronald Reagan Washington (DCA) 2 16:37 Hyannis (HYA)
AA 4555 Non-stop Embraer EMB 175 (E75) 1:43 Effective 2026-06-18 through 2026-07-01
Mon-Fri,Sun 16:05 New York LaGuardia (LGA) B 17:33 Norfolk (ORF)
AA 4555 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:28 Effective 2026-03-08 through 2026-04-06
Daily 17:33 Hyannis (HYA) 19:15 Ronald Reagan Washington (DCA) 2
AA 4555 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-06-18 through 2026-07-01
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This flight number is listed as serving the following routes:


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American Airlines flight AA 4555: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA4555
08:20
Ronald Reagan Washington (DCA) 2

10:08
Knoxville (TYS)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
08:40
New York LaGuardia (LGA) B

10:06
Boston Logan (BOS) B
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:26, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
11:03
Knoxville (TYS)

12:40
Ronald Reagan Washington (DCA) 2
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
11:20
Boston Logan (BOS) B

15:18
Key West (EYW)
Effective 2026-02-13 through 2026-02-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:58, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
11:30
Boston Logan (BOS) B

15:28
Key West (EYW)
Operates only on 2026-02-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:58, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
13:35
Chicago O'Hare (ORD) 3

16:46
Raleigh/Durham (RDU) 2
Effective 2026-01-08 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:11, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
13:55
Chicago O'Hare (ORD) 3

17:06
Raleigh/Durham (RDU) 2
Effective 2026-01-06 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:11, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
14:54
Ronald Reagan Washington (DCA) 2

16:37
Hyannis (HYA)
Effective 2026-06-18 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4555
16:05
New York LaGuardia (LGA) B

17:33
Norfolk (ORF)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:28, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Flights:
American Airlines AA4555
17:33
Hyannis (HYA)

19:15
Ronald Reagan Washington (DCA) 2
Effective 2026-06-18 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Key West (EYW)
  • Chicago O'Hare (ORD) - Raleigh/Durham (RDU)
  • Hyannis (HYA) - Ronald Reagan Washington (DCA)
  • New York LaGuardia (LGA) - Boston Logan (BOS)
  • New York LaGuardia (LGA) - Norfolk (ORF)
  • Ronald Reagan Washington (DCA) - Knoxville (TYS)
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