Iberia flight IB 4278: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:19 Austin (AUS) 14:51 Philadelphia (PHL)
IB 4278 Non-stop Airbus A319 (319) 3:32 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1423)
Mon,Thu,Fri,Sun 12:35 Dallas Fort Worth (DFW) 14:13 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:38 Effective 2026-02-12 through 2026-02-19
Codeshare flight, operated by American Airlines.(AA 3718)
Thu,Fri,Sun 12:35 Dallas Fort Worth (DFW) 14:13 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:38 Effective 2026-02-22 through 2026-03-06
Codeshare flight, operated by American Airlines.(AA 3718)
Daily 12:36 Dallas Fort Worth (DFW) 14:14 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:38 Effective 2026-03-08 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 3718)
Daily 12:40 Austin (AUS) 17:16 Philadelphia (PHL)
IB 4278 Non-stop Airbus A319 (319) 3:36 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 1411)
Mon-Thu,Sun 13:06 Dallas Fort Worth (DFW) 14:46 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:40 Effective 2026-01-06 through 2026-01-18
Codeshare flight, operated by American Airlines.(AA 3718)
Tue-Thu,Sun 13:06 Dallas Fort Worth (DFW) 14:46 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:40 Effective 2026-01-20 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 3718)
Fri 13:09 Dallas Fort Worth (DFW) 14:49 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:40 Effective 2026-01-09 through 2026-01-16
Codeshare flight, operated by American Airlines.(AA 3718)
Mon,Fri 13:09 Dallas Fort Worth (DFW) 14:49 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:40 Effective 2026-01-19 through 2026-02-09
Codeshare flight, operated by American Airlines.(AA 3718)
Daily 14:25 Austin (AUS) 18:59 Philadelphia (PHL)
IB 4278 Non-stop Airbus A319 (319) 3:34 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 1162)
Daily 14:34 Austin (AUS) 19:01 Philadelphia (PHL)
IB 4278 Non-stop Airbus A319 (319) 3:27 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 1820)
Mon,Tue,Thu-Sun 14:45 Austin (AUS) 19:11 Philadelphia (PHL)
IB 4278 Non-stop Airbus A319 (319) 3:26 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 2404)
Tue,Wed,Fri,Sat 16:39 Dallas Fort Worth (DFW) 18:16 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2026-02-14 through 2026-02-21
Codeshare flight, operated by American Airlines.(AA 3718)
Mon-Wed,Sat 16:39 Dallas Fort Worth (DFW) 18:16 Harlingen (HRL)
IB 4278 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2026-02-23 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 3718)
This flight number is listed as serving the following routes:


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Iberia flight IB 4278: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Iberia IB4278
10:19
Austin (AUS)

14:51
Philadelphia (PHL)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1423)
Duration: 3:32, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Iberia IB4278
12:35
Dallas Fort Worth (DFW)

14:13
Harlingen (HRL)
Effective 2026-02-12 through 2026-02-19
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:38, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
12:35
Dallas Fort Worth (DFW)

14:13
Harlingen (HRL)
Effective 2026-02-22 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:38, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
12:36
Dallas Fort Worth (DFW)

14:14
Harlingen (HRL)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:38, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
12:40
Austin (AUS)

17:16
Philadelphia (PHL)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1411)
Duration: 3:36, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Iberia IB4278
13:06
Dallas Fort Worth (DFW)

14:46
Harlingen (HRL)
Effective 2026-01-06 through 2026-01-18
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:40, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
13:06
Dallas Fort Worth (DFW)

14:46
Harlingen (HRL)
Effective 2026-01-20 through 2026-02-11
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:40, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
13:09
Dallas Fort Worth (DFW)

14:49
Harlingen (HRL)
Effective 2026-01-09 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:40, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
13:09
Dallas Fort Worth (DFW)

14:49
Harlingen (HRL)
Effective 2026-01-19 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:40, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
14:25
Austin (AUS)

18:59
Philadelphia (PHL)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1162)
Duration: 3:34, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Iberia IB4278
14:34
Austin (AUS)

19:01
Philadelphia (PHL)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1820)
Duration: 3:27, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Iberia IB4278
14:45
Austin (AUS)

19:11
Philadelphia (PHL)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2404)
Duration: 3:26, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Iberia IB4278
16:39
Dallas Fort Worth (DFW)

18:16
Harlingen (HRL)
Effective 2026-02-14 through 2026-02-21
Mon
-
Tue
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Iberia IB4278
16:39
Dallas Fort Worth (DFW)

18:16
Harlingen (HRL)
Effective 2026-02-23 through 2026-03-07
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3718)
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
  • Austin (AUS) - Philadelphia (PHL)
  • Dallas Fort Worth (DFW) - Harlingen (HRL)
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