Aer Lingus flights from Chicago O'Hare (ORD) to San Diego (SAN).

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 16:45 Chicago O'Hare (ORD) 3 19:03 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:18 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2718)
Daily 16:45 Chicago O'Hare (ORD) 3 19:02 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Boeing 737-800 (738) 4:17 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1543)
Daily 16:45 Chicago O'Hare (ORD) 3 19:04 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Boeing 737-800 (738) 4:19 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 1543)
Daily 16:45 Chicago O'Hare (ORD) 3 19:01 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Boeing 737-800 (738) 4:16 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 1768)
Daily 16:45 Chicago O'Hare (ORD) 3 19:08 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Boeing 737-800 (738) 4:23 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 1543)
Daily 16:55 Chicago O'Hare (ORD) 3 19:16 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Boeing 737-800 (738) 4:21 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 1543)
Mon,Thu,Fri,Sun 17:32 Chicago O'Hare (ORD) 3 19:59 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:27 Valid until 2026-01-01
Codeshare flight, operated by American Airlines.(AA 1543)
Mon,Wed,Fri,Sun 17:49 Chicago O'Hare (ORD) 3 20:23 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:34 Effective 2026-03-01 through 2026-03-06
Codeshare flight, operated by American Airlines.(AA 1543)
Mon,Wed,Sat,Sun 17:49 Chicago O'Hare (ORD) 3 20:35 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:46 Effective 2026-03-08 through 2026-03-16
Codeshare flight, operated by American Airlines.(AA 1543)
Mon-Thu,Sat,Sun 17:49 Chicago O'Hare (ORD) 3 20:35 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:46 Effective 2026-03-17 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 1543)
Fri 19:05 Chicago O'Hare (ORD) 3 21:51 San Diego (SAN) 2
Aer Lingus EI 7278 Non-stop Airbus A321 (321) 4:46 Effective 2026-03-13 through 2026-04-03
Codeshare flight, operated by American Airlines.(AA 1543)
Daily 18:35 Chicago O'Hare (ORD) 3 20:53 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Boeing 737-800 (738) 4:18 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 1861)
Daily 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Airbus A321 (321) 4:22 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 2457)
Daily 20:25 Chicago O'Hare (ORD) 3 22:50 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Airbus A321 (321) 4:25 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 2458)
Sat 20:36 Chicago O'Hare (ORD) 3 23:13 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Airbus A321 (321) 4:37 Valid until 2026-01-03
Codeshare flight, operated by American Airlines.(AA 1861)
Daily 20:40 Chicago O'Hare (ORD) 3 23:09 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Boeing 737-800 (738) 4:29 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2285)
Daily 21:00 Chicago O'Hare (ORD) 3 23:23 San Diego (SAN) 2
Aer Lingus EI 7449 Non-stop Airbus A321 (321) 4:23 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 1861)
Daily 06:45 Chicago O'Hare (ORD) 3 09:12 San Diego (SAN) 2
Aer Lingus EI 7554 Non-stop Boeing 737-800 (738) 4:27 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2732)
Daily 06:45 Chicago O'Hare (ORD) 3 09:05 San Diego (SAN) 2
Aer Lingus EI 7554 Non-stop Boeing 737-800 (738) 4:20 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 2484)
Daily 06:45 Chicago O'Hare (ORD) 3 08:59 San Diego (SAN) 2
Aer Lingus EI 7554 Non-stop Boeing 737-800 (738) 4:14 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 2485)
Daily 06:45 Chicago O'Hare (ORD) 3 09:06 San Diego (SAN) 2
Aer Lingus EI 7554 Non-stop Boeing 737-800 (738) 4:21 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 2343)
Daily 06:45 Chicago O'Hare (ORD) 3 09:11 San Diego (SAN) 2
Aer Lingus EI 7554 Non-stop Boeing 737-800 (738) 4:26 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 2343)




Feedback - Disclaimer - Privacy
FlightMapper.net Flight Search Countries Airlines
LANGUAGES
Aer Lingus flights from Chicago O'Hare (ORD) to San Diego (SAN).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Aer Lingus EI7278
16:45
Chicago O'Hare (ORD) 3

19:03
San Diego (SAN) 2
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2718)
Duration: 4:18, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7278
16:45
Chicago O'Hare (ORD) 3

19:02
San Diego (SAN) 2
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:17, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7278
16:45
Chicago O'Hare (ORD) 3

19:04
San Diego (SAN) 2
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:19, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7278
16:45
Chicago O'Hare (ORD) 3

19:01
San Diego (SAN) 2
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1768)
Duration: 4:16, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7278
16:45
Chicago O'Hare (ORD) 3

19:08
San Diego (SAN) 2
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:23, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7278
16:55
Chicago O'Hare (ORD) 3

19:16
San Diego (SAN) 2
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:21, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7278
17:32
Chicago O'Hare (ORD) 3

19:59
San Diego (SAN) 2
Valid until 2026-01-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:27, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7278
17:49
Chicago O'Hare (ORD) 3

20:23
San Diego (SAN) 2
Effective 2026-03-01 through 2026-03-06
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:34, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7278
17:49
Chicago O'Hare (ORD) 3

20:35
San Diego (SAN) 2
Effective 2026-03-08 through 2026-03-16
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:46, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7278
17:49
Chicago O'Hare (ORD) 3

20:35
San Diego (SAN) 2
Effective 2026-03-17 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:46, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7278
19:05
Chicago O'Hare (ORD) 3

21:51
San Diego (SAN) 2
Effective 2026-03-13 through 2026-04-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1543)
Duration: 4:46, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7449
18:35
Chicago O'Hare (ORD) 3

20:53
San Diego (SAN) 2
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1861)
Duration: 4:18, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7449
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2457)
Duration: 4:22, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7449
20:25
Chicago O'Hare (ORD) 3

22:50
San Diego (SAN) 2
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2458)
Duration: 4:25, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7449
20:36
Chicago O'Hare (ORD) 3

23:13
San Diego (SAN) 2
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1861)
Duration: 4:37, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7449
20:40
Chicago O'Hare (ORD) 3

23:09
San Diego (SAN) 2
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2285)
Duration: 4:29, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7449
21:00
Chicago O'Hare (ORD) 3

23:23
San Diego (SAN) 2
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1861)
Duration: 4:23, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Aer Lingus EI7554
06:45
Chicago O'Hare (ORD) 3

09:12
San Diego (SAN) 2
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2732)
Duration: 4:27, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7554
06:45
Chicago O'Hare (ORD) 3

09:05
San Diego (SAN) 2
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2484)
Duration: 4:20, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7554
06:45
Chicago O'Hare (ORD) 3

08:59
San Diego (SAN) 2
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2485)
Duration: 4:14, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7554
06:45
Chicago O'Hare (ORD) 3

09:06
San Diego (SAN) 2
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2343)
Duration: 4:21, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Aer Lingus EI7554
06:45
Chicago O'Hare (ORD) 3

09:11
San Diego (SAN) 2
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2343)
Duration: 4:26, non-stop
Boeing 737-800 (738)
  • A domestic route departing from the Chicago O'Hare airport (ORD) and arriving at San Diego airport (SAN).
  • The flight distance is 1719 miles, or 2766 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 4:14 and 4:46.
All ORD-SAN flights
All Aer Lingus flights
Return (SAN-ORD) flights
Feedback     -     Disclaimer     -     Privacy