American Airlines flight AA 4373: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 06:39 Pittsburgh (PIT) 07:30 Chicago O'Hare (ORD) 3 AA 4373 Non-stop Embraer EMB 175 (E75) 1:51 Effective from 2026-02-12
Daily 08:13 Pittsburgh (PIT) 09:10 Chicago O'Hare (ORD) 3 AA 4373 Non-stop Embraer EMB 175 (E75) 1:57 Effective 2026-01-06 through 2026-02-11
Thu 10:25 Philadelphia (PHL) 11:45 Pittsburgh (PIT) AA 4373 Non-stop Embraer EMB 175 (E75) 1:20 Operates only on 2025-06-05
Sat 11:05 Philadelphia (PHL) 12:54 Memphis (MEM) AA 4373 Non-stop Embraer EMB 175 (E75) 2:49 Valid until 2025-05-03
Daily 11:30 Ronald Reagan Washington (DCA) 2 12:42 Raleigh/Durham (RDU) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:12 Effective 2025-08-06 through 2025-09-02
Daily 11:30 Ronald Reagan Washington (DCA) 2 12:47 Raleigh/Durham (RDU) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:17 Effective 2025-09-03 through 2025-10-05
Daily 11:30 Ronald Reagan Washington (DCA) 2 12:51 Raleigh/Durham (RDU) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:21 Effective 2025-10-06 through 2025-11-01
Daily 13:02 Raleigh/Durham (RDU) 2 14:24 Ronald Reagan Washington (DCA) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:22 Effective 2025-08-06 through 2025-09-02
Daily 13:11 Raleigh/Durham (RDU) 2 14:24 Ronald Reagan Washington (DCA) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:13 Effective 2025-12-18 through 2026-01-05
Daily 13:24 Raleigh/Durham (RDU) 2 14:45 Ronald Reagan Washington (DCA) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:21 Effective 2025-09-03 through 2025-10-05
Sat 13:25 Memphis (MEM) 16:50 Philadelphia (PHL) AA 4373 Non-stop Embraer EMB 175 (E75) 2:25 Valid until 2025-05-03
Daily 13:32 Raleigh/Durham (RDU) 2 14:57 Ronald Reagan Washington (DCA) 2 AA 4373 Non-stop Embraer EMB 175 (E75) 1:25 Effective 2025-10-06 through 2025-11-01
Sun 13:35 Philadelphia (PHL) 15:36 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:01 Effective 2025-06-08 through 2025-06-15
Sat 14:15 Philadelphia (PHL) 16:15 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2025-06-07 through 2025-06-14
Sat 14:31 Philadelphia (PHL) 16:31 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2025-06-21 through 2025-06-28
Sat 14:32 Philadelphia (PHL) 16:37 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:05 Effective 2025-07-05 through 2025-08-02
Sun 14:51 Philadelphia (PHL) 16:56 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:05 Effective 2025-07-06 through 2025-08-03
Sun 14:57 Philadelphia (PHL) 16:57 Hilton Head Island (HHH) AA 4373 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2025-06-22 through 2025-06-29
Sat 17:05 Chicago O'Hare (ORD) 3 20:33 Boston Logan (BOS) B AA 4373 Non-stop Embraer EMB 175 (E75) 2:28 Effective 2025-05-10 through 2025-05-31
Thu 21:29 New York LaGuardia (LGA) B 22:37 Boston Logan (BOS) B AA 4373 Non-stop Embraer EMB 175 (E75) 1:08 Operates only on 2025-07-03

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This flight number is listed as serving the following routes:

Chicago O'Hare (ORD) - Boston Logan (BOS)
New York LaGuardia (LGA) - Boston Logan (BOS)
Philadelphia (PHL) - Hilton Head Island (HHH)
Philadelphia (PHL) - Memphis (MEM)
Philadelphia (PHL) - Pittsburgh (PIT)
Pittsburgh (PIT) - Chicago O'Hare (ORD)
Raleigh/Durham (RDU) - Ronald Reagan Washington (DCA)

All American Airlines flights

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American Airlines flight AA 4373: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

American Airlines AA4373

06:39

Pittsburgh (PIT)

07:30

Chicago O'Hare (ORD) 3

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:51, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

08:13

Pittsburgh (PIT)

09:10

Chicago O'Hare (ORD) 3

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:57, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

10:25

Philadelphia (PHL)

11:45

Pittsburgh (PIT)

Operates only on 2025-06-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

11:05

Philadelphia (PHL)

12:54

Memphis (MEM)

Valid until 2025-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:49, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

11:30

Ronald Reagan Washington (DCA) 2

12:42

Raleigh/Durham (RDU) 2

Effective 2025-08-06 through 2025-09-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:12, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

11:30

Ronald Reagan Washington (DCA) 2

12:47

Raleigh/Durham (RDU) 2

Effective 2025-09-03 through 2025-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:17, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

11:30

Ronald Reagan Washington (DCA) 2

12:51

Raleigh/Durham (RDU) 2

Effective 2025-10-06 through 2025-11-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:21, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:02

Raleigh/Durham (RDU) 2

14:24

Ronald Reagan Washington (DCA) 2

Effective 2025-08-06 through 2025-09-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:22, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:11

Raleigh/Durham (RDU) 2

14:24

Ronald Reagan Washington (DCA) 2

Effective 2025-12-18 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:13, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:24

Raleigh/Durham (RDU) 2

14:45

Ronald Reagan Washington (DCA) 2

Effective 2025-09-03 through 2025-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:21, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:25

Memphis (MEM)

16:50

Philadelphia (PHL)

Valid until 2025-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:25, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:32

Raleigh/Durham (RDU) 2

14:57

Ronald Reagan Washington (DCA) 2

Effective 2025-10-06 through 2025-11-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:25, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

13:35

Philadelphia (PHL)

15:36

Hilton Head Island (HHH)

Effective 2025-06-08 through 2025-06-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:01, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

14:15

Philadelphia (PHL)

16:15

Hilton Head Island (HHH)

Effective 2025-06-07 through 2025-06-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

14:31

Philadelphia (PHL)

16:31

Hilton Head Island (HHH)

Effective 2025-06-21 through 2025-06-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

14:32

Philadelphia (PHL)

16:37

Hilton Head Island (HHH)

Effective 2025-07-05 through 2025-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

14:51

Philadelphia (PHL)

16:56

Hilton Head Island (HHH)

Effective 2025-07-06 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:05, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

14:57

Philadelphia (PHL)

16:57

Hilton Head Island (HHH)

Effective 2025-06-22 through 2025-06-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:00, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

17:05

Chicago O'Hare (ORD) 3

20:33

Boston Logan (BOS) B

Effective 2025-05-10 through 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:28, non-stop
Embraer EMB 175 (E75)

American Airlines AA4373

21:29

New York LaGuardia (LGA) B

22:37

Boston Logan (BOS) B

Operates only on 2025-07-03

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:08, non-stop
Embraer EMB 175 (E75)

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Parallax here

This flight number is listed as serving the following routes:

Chicago O'Hare (ORD) - Boston Logan (BOS)
New York LaGuardia (LGA) - Boston Logan (BOS)
Philadelphia (PHL) - Hilton Head Island (HHH)
Philadelphia (PHL) - Memphis (MEM)
Philadelphia (PHL) - Pittsburgh (PIT)
Pittsburgh (PIT) - Chicago O'Hare (ORD)
Raleigh/Durham (RDU) - Ronald Reagan Washington (DCA)

All American Airlines flights

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