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

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed,Thu,Sat,Sun 19:55 Chicago O'Hare (ORD) 2 22:15 San Diego (SAN) 2
Finnair AY 2553 Non-stop Boeing 737 (73J) 4:20 Effective 2026-03-29 through 2026-04-30
Codeshare flight, operated by Alaska Airlines.(AS 1466)
Daily 19:55 Chicago O'Hare (ORD) 2 22:15 San Diego (SAN) 2
Finnair AY 2553 Non-stop Boeing 737 (73J) 4:20 Effective 2026-05-01 through 2026-08-14
Codeshare flight, operated by Alaska Airlines.(AS 1466)
Tue-Fri,Sun 19:55 Chicago O'Hare (ORD) 2 22:15 San Diego (SAN) 2
Finnair AY 2553 Non-stop Boeing 737 (73J) 4:20 Effective 2026-08-16 through 2026-09-04
Codeshare flight, operated by Alaska Airlines.(AS 1466)
Tue-Sun 19:55 Chicago O'Hare (ORD) 2 22:15 San Diego (SAN) 2
Finnair AY 2553 Non-stop Boeing 737 (73J) 4:20 Effective 2026-09-05 through 2026-09-27
Codeshare flight, operated by Alaska Airlines.(AS 1466)
Daily 19:55 Chicago O'Hare (ORD) 2 22:15 San Diego (SAN) 2
Finnair AY 2553 Non-stop Boeing 737 (73J) 4:20 Effective 2026-09-28 through 2026-10-24
Codeshare flight, operated by Alaska Airlines.(AS 1466)
Tue,Sat,Sun 20:25 Chicago O'Hare (ORD) 3 22:50 San Diego (SAN) 2
Finnair AY 4024 Non-stop Airbus A321 (321) 4:25 Effective 2026-07-04 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 2458)
Tue,Sat,Sun 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Finnair AY 4025 Non-stop Airbus A321 (321) 4:22 Effective 2026-05-23 through 2026-06-07
Codeshare flight, operated by American Airlines.(AA 2457)
Mon,Tue,Sat,Sun 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Finnair AY 4025 Non-stop Airbus A321 (321) 4:22 Effective 2026-06-08 through 2026-06-14
Codeshare flight, operated by American Airlines.(AA 2457)
Tue,Sat,Sun 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Finnair AY 4025 Non-stop Airbus A321 (321) 4:22 Effective 2026-06-16 through 2026-06-30
Codeshare flight, operated by American Airlines.(AA 2457)
Tue 21:00 Chicago O'Hare (ORD) 3 23:23 San Diego (SAN) 2
Finnair AY 4025 Non-stop Airbus A321 (321) 4:23 Operates only on 2026-09-08
Codeshare flight, operated by American Airlines.(AA 1861)
Mon,Wed-Fri 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Finnair AY 4028 Non-stop Airbus A321 (321) 4:22 Effective 2026-06-10 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 2457)
Mon,Wed-Fri 20:25 Chicago O'Hare (ORD) 3 22:47 San Diego (SAN) 2
Finnair AY 4031 Non-stop Airbus A321 (321) 4:22 Effective 2026-05-21 through 2026-06-05
Codeshare flight, operated by American Airlines.(AA 2457)
Mon,Wed-Fri 20:25 Chicago O'Hare (ORD) 3 22:50 San Diego (SAN) 2
Finnair AY 4042 Non-stop Airbus A321 (321) 4:25 Effective 2026-07-02 through 2026-08-03
Codeshare flight, operated by American Airlines.(AA 2458)
Daily 21:00 Chicago O'Hare (ORD) 3 23:23 San Diego (SAN) 2
Finnair AY 4048 Non-stop Airbus A321 (321) 4:23 Effective 2026-08-05 through 2026-08-14
Codeshare flight, operated by American Airlines.(AA 1861)
Tue-Fri,Sun 21:00 Chicago O'Hare (ORD) 3 23:23 San Diego (SAN) 2
Finnair AY 4048 Non-stop Airbus A321 (321) 4:23 Effective 2026-08-16 through 2026-09-04
Codeshare flight, operated by American Airlines.(AA 1861)
Sat,Sun 21:00 Chicago O'Hare (ORD) 3 23:23 San Diego (SAN) 2
Finnair AY 4048 Non-stop Airbus A321 (321) 4:23 Effective 2026-09-05 through 2026-09-06
Codeshare flight, operated by American Airlines.(AA 1861)
Mon,Wed,Thu,Sat,Sun 20:40 Chicago O'Hare (ORD) 3 23:09 San Diego (SAN) 2
Finnair AY 4053 Non-stop Boeing 737-800 (738) 4:29 Effective 2026-04-08 through 2026-04-25
Codeshare flight, operated by American Airlines.(AA 2285)
Mon,Wed-Sun 20:40 Chicago O'Hare (ORD) 3 23:09 San Diego (SAN) 2
Finnair AY 4134 Non-stop Boeing 737-800 (738) 4:29 Effective 2026-04-26 through 2026-05-04
Codeshare flight, operated by American Airlines.(AA 2285)
Daily 20:40 Chicago O'Hare (ORD) 3 23:09 San Diego (SAN) 2
Finnair AY 4134 Non-stop Boeing 737-800 (738) 4:29 Effective 2026-05-05 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2285)
Tue 06:45 Chicago O'Hare (ORD) 3 09:12 San Diego (SAN) 2
Finnair AY 4143 Non-stop Boeing 737-800 (738) 4:27 Operates only on 2026-04-07
Codeshare flight, operated by American Airlines.(AA 2732)
Mon,Wed-Sun 06:45 Chicago O'Hare (ORD) 3 09:06 San Diego (SAN) 2
Finnair AY 4143 Non-stop Boeing 737-800 (738) 4:21 Effective 2026-09-10 through 2026-09-28
Codeshare flight, operated by American Airlines.(AA 2343)
Tue-Sun 06:45 Chicago O'Hare (ORD) 3 09:06 San Diego (SAN) 2
Finnair AY 4143 Non-stop Boeing 737-800 (738) 4:21 Effective 2026-09-29 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
Finnair AY 4143 Non-stop Boeing 737-800 (738) 4:26 Effective 2026-10-05 through 2026-10-25
Codeshare flight, operated by American Airlines.(AA 2343)
Wed,Sat 06:45 Chicago O'Hare (ORD) 3 09:11 San Diego (SAN) 2
Finnair AY 4143 Non-stop Boeing 737-800 (738) 4:26 Effective from 2026-10-28
Codeshare flight, operated by American Airlines.(AA 2343)




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Finnair flights from Chicago O'Hare (ORD) to San Diego (SAN).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY2553
19:55
Chicago O'Hare (ORD) 2

22:15
San Diego (SAN) 2
Effective 2026-03-29 through 2026-04-30
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1466)
Duration: 4:20, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Finnair AY2553
19:55
Chicago O'Hare (ORD) 2

22:15
San Diego (SAN) 2
Effective 2026-05-01 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1466)
Duration: 4:20, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Finnair AY2553
19:55
Chicago O'Hare (ORD) 2

22:15
San Diego (SAN) 2
Effective 2026-08-16 through 2026-09-04
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1466)
Duration: 4:20, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Finnair AY2553
19:55
Chicago O'Hare (ORD) 2

22:15
San Diego (SAN) 2
Effective 2026-09-05 through 2026-09-27
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1466)
Duration: 4:20, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Finnair AY2553
19:55
Chicago O'Hare (ORD) 2

22:15
San Diego (SAN) 2
Effective 2026-09-28 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1466)
Duration: 4:20, non-stop
Boeing 737 (73J)
Direct Codeshare Flights:
Finnair AY4024
20:25
Chicago O'Hare (ORD) 3

22:50
San Diego (SAN) 2
Effective 2026-07-04 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:
Finnair AY4025
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-05-23 through 2026-06-07
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:
Finnair AY4025
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-06-08 through 2026-06-14
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:
Finnair AY4025
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-06-16 through 2026-06-30
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:
Finnair AY4025
21:00
Chicago O'Hare (ORD) 3

23:23
San Diego (SAN) 2
Operates only on 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:
Finnair AY4028
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-06-10 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:
Finnair AY4031
20:25
Chicago O'Hare (ORD) 3

22:47
San Diego (SAN) 2
Effective 2026-05-21 through 2026-06-05
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:
Finnair AY4042
20:25
Chicago O'Hare (ORD) 3

22:50
San Diego (SAN) 2
Effective 2026-07-02 through 2026-08-03
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:
Finnair AY4048
21:00
Chicago O'Hare (ORD) 3

23:23
San Diego (SAN) 2
Effective 2026-08-05 through 2026-08-14
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:
Finnair AY4048
21:00
Chicago O'Hare (ORD) 3

23:23
San Diego (SAN) 2
Effective 2026-08-16 through 2026-09-04
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:
Finnair AY4048
21:00
Chicago O'Hare (ORD) 3

23:23
San Diego (SAN) 2
Effective 2026-09-05 through 2026-09-06
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:
Finnair AY4053
20:40
Chicago O'Hare (ORD) 3

23:09
San Diego (SAN) 2
Effective 2026-04-08 through 2026-04-25
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:
Finnair AY4134
20:40
Chicago O'Hare (ORD) 3

23:09
San Diego (SAN) 2
Effective 2026-04-26 through 2026-05-04
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:
Finnair AY4134
20:40
Chicago O'Hare (ORD) 3

23:09
San Diego (SAN) 2
Effective 2026-05-05 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:
Finnair AY4143
06:45
Chicago O'Hare (ORD) 3

09:12
San Diego (SAN) 2
Operates only on 2026-04-07
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:
Finnair AY4143
06:45
Chicago O'Hare (ORD) 3

09:06
San Diego (SAN) 2
Effective 2026-09-10 through 2026-09-28
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:
Finnair AY4143
06:45
Chicago O'Hare (ORD) 3

09:06
San Diego (SAN) 2
Effective 2026-09-29 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:
Finnair AY4143
06:45
Chicago O'Hare (ORD) 3

09:11
San Diego (SAN) 2
Effective 2026-10-05 through 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2343)
Duration: 4:26, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Finnair AY4143
06:45
Chicago O'Hare (ORD) 3

09:11
San Diego (SAN) 2
Effective from 2026-10-28
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 4:20 and 4:29.
All ORD-SAN flights
All Finnair flights
Return (SAN-ORD) flights
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