Iberia flight IB 4381: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu,Sat,Sun 06:00 Boston Logan (BOS) B 08:26 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:26 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 3563)
Mon,Wed,Fri,Sun 06:03 Luis Munoz Marin, San Juan (SJU) C 08:48 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:45 Effective 2025-07-06 through 2025-08-04
Codeshare flight, operated by American Airlines.(AA 2817)
Tue,Thu,Sat 06:04 Luis Munoz Marin, San Juan (SJU) C 08:49 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:45 Effective 2025-07-05 through 2025-08-05
Codeshare flight, operated by American Airlines.(AA 2817)
Daily 06:05 Luis Munoz Marin, San Juan (SJU) C 08:55 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:50 Effective 2025-06-05 through 2025-07-04
Codeshare flight, operated by American Airlines.(AA 2817)
Daily 06:10 Luis Munoz Marin, San Juan (SJU) C 09:00 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:50 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 2817)
Daily 06:21 Luis Munoz Marin, San Juan (SJU) C 09:16 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:55 Valid until 2025-05-04
Codeshare flight, operated by American Airlines.(AA 2817)
Mon,Tue,Thu,Sat,Sun 06:25 Boston Logan (BOS) B 08:43 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:18 Effective 2025-11-02 through 2025-12-16
Codeshare flight, operated by American Airlines.(AA 4500)
Mon,Tue,Thu-Sun 06:25 Boston Logan (BOS) B 08:42 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:17 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 4500)
Daily 06:30 Luis Munoz Marin, San Juan (SJU) C 09:20 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:50 Effective 2025-10-06 through 2025-10-25
Codeshare flight, operated by American Airlines.(AA 2817)
Mon,Tue,Thu-Sun 06:30 Boston Logan (BOS) B 08:54 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:24 Effective 2026-01-06 through 2026-01-19
Codeshare flight, operated by American Airlines.(AA 4500)
Mon,Thu,Sat 06:30 Boston Logan (BOS) B 08:54 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:24 Effective 2026-01-22 through 2026-02-09
Codeshare flight, operated by American Airlines.(AA 4500)
Mon-Thu,Sat,Sun 06:30 Boston Logan (BOS) B 08:47 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:17 Effective 2026-02-12 through 2026-02-19
Codeshare flight, operated by American Airlines.(AA 4500)
Daily 06:30 Boston Logan (BOS) B 08:47 Saint Louis (STL) 1
IB 4381 Non-stop Embraer EMB 175 (E75) 3:17 Effective from 2026-02-20
Codeshare flight, operated by American Airlines.(AA 4500)
Daily 06:35 Luis Munoz Marin, San Juan (SJU) C 09:20 Miami (MIA)
IB 4381 Non-stop Boeing 737-800 (738) 2:45 Effective 2025-08-06 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 2817)
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This flight number is listed as serving the following routes:


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Iberia flight IB 4381: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Iberia IB4381
06:00
Boston Logan (BOS) B

08:26
Saint Louis (STL) 1
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3563)
Duration: 3:26, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:03
Luis Munoz Marin, San Juan (SJU) C

08:48
Miami (MIA)
Effective 2025-07-06 through 2025-08-04
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:45, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:04
Luis Munoz Marin, San Juan (SJU) C

08:49
Miami (MIA)
Effective 2025-07-05 through 2025-08-05
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:45, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:05
Luis Munoz Marin, San Juan (SJU) C

08:55
Miami (MIA)
Effective 2025-06-05 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:50, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:10
Luis Munoz Marin, San Juan (SJU) C

09:00
Miami (MIA)
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:50, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:21
Luis Munoz Marin, San Juan (SJU) C

09:16
Miami (MIA)
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:55, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:25
Boston Logan (BOS) B

08:43
Saint Louis (STL) 1
Effective 2025-11-02 through 2025-12-16
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:18, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:25
Boston Logan (BOS) B

08:42
Saint Louis (STL) 1
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:17, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:30
Luis Munoz Marin, San Juan (SJU) C

09:20
Miami (MIA)
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:50, non-stop
Boeing 737-800 (738)
Iberia IB4381
06:30
Boston Logan (BOS) B

08:54
Saint Louis (STL) 1
Effective 2026-01-06 through 2026-01-19
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:24, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:30
Boston Logan (BOS) B

08:54
Saint Louis (STL) 1
Effective 2026-01-22 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:24, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:30
Boston Logan (BOS) B

08:47
Saint Louis (STL) 1
Effective 2026-02-12 through 2026-02-19
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:17, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:30
Boston Logan (BOS) B

08:47
Saint Louis (STL) 1
Effective from 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4500)
Duration: 3:17, non-stop
Embraer EMB 175 (E75)
Iberia IB4381
06:35
Luis Munoz Marin, San Juan (SJU) C

09:20
Miami (MIA)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2817)
Duration: 2:45, non-stop
Boeing 737-800 (738)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Saint Louis (STL)
  • Luis Munoz Marin, San Juan (SJU) - Miami (MIA)
All Iberia flights
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