American Airlines flight AA 4637: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 18:35 Philadelphia (PHL) 20:50 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-05-21 through 2026-07-01
Daily 18:35 Philadelphia (PHL) 20:52 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:17 Effective 2026-07-02 through 2026-08-04
Daily 18:35 Philadelphia (PHL) 20:51 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:16 Effective 2026-09-09 through 2026-10-04
Daily 18:35 Philadelphia (PHL) 20:44 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:09 Effective from 2026-10-05
Daily 18:40 Philadelphia (PHL) 20:56 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:16 Valid until 2026-01-05
Daily 18:40 Philadelphia (PHL) 21:00 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:20 Effective 2026-01-06 through 2026-02-11
Daily 18:40 Philadelphia (PHL) 20:57 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:17 Effective 2026-02-12 through 2026-03-07
Daily 18:40 Philadelphia (PHL) 20:55 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-08 through 2026-04-06
Daily 18:48 Philadelphia (PHL) 21:03 Indianapolis (IND)
AA 4637 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-08-05 through 2026-09-08
Daily 20:20 Chicago O'Hare (ORD) 3 23:33 Atlanta (ATL) N
AA 4637 Non-stop Embraer EMB 175 (E75) 2:13 Effective 2026-04-07 through 2026-05-20
This flight number is listed as serving the following routes:


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American Airlines flight AA 4637: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
American Airlines AA4637
18:35
Philadelphia (PHL)

20:50
Indianapolis (IND)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:35
Philadelphia (PHL)

20:52
Indianapolis (IND)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:35
Philadelphia (PHL)

20:51
Indianapolis (IND)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:35
Philadelphia (PHL)

20:44
Indianapolis (IND)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:40
Philadelphia (PHL)

20:56
Indianapolis (IND)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:16, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:40
Philadelphia (PHL)

21:00
Indianapolis (IND)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:40
Philadelphia (PHL)

20:57
Indianapolis (IND)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:17, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:40
Philadelphia (PHL)

20:55
Indianapolis (IND)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
18:48
Philadelphia (PHL)

21:03
Indianapolis (IND)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Flights:
American Airlines AA4637
20:20
Chicago O'Hare (ORD) 3

23:33
Atlanta (ATL) N
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:13, non-stop
Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Atlanta (ATL)
  • Philadelphia (PHL) - Indianapolis (IND)
All American Airlines flights
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