Finnair flight AY 4143: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 06:45 Chicago O'Hare (ORD) 3 09:12 San Diego (SAN) 2
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
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
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
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
AY 4143 Non-stop Boeing 737-800 (738) 4:26 Effective from 2026-10-28
Codeshare flight, operated by American Airlines.(AA 2343)
Daily 15:51 Memphis (MEM) 18:00 Chicago O'Hare (ORD) 3
AY 4143 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 4383)
Thu 16:06 Memphis (MEM) 18:00 Chicago O'Hare (ORD) 3
AY 4143 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:54 Effective 2026-04-09 through 2026-05-14
Codeshare flight, operated by American Airlines.(AA 3747)
Daily 16:49 Memphis (MEM) 18:35 Chicago O'Hare (ORD) 3
AY 4143 Non-stop Airbus A319 (319) 1:46 Effective 2026-08-05 through 2026-08-14
Codeshare flight, operated by American Airlines.(AA 1649)
Tue-Fri,Sun 16:49 Memphis (MEM) 18:35 Chicago O'Hare (ORD) 3
AY 4143 Non-stop Airbus A319 (319) 1:46 Effective 2026-08-16 through 2026-09-01
Codeshare flight, operated by American Airlines.(AA 1649)
Tue 16:49 Memphis (MEM) 18:35 Chicago O'Hare (ORD) 3
AY 4143 Non-stop Airbus A319 (319) 1:46 Operates only on 2026-09-08
Codeshare flight, operated by American Airlines.(AA 1649)
Mon,Wed-Fri 20:20 Chicago O'Hare (ORD) 3 22:59 Los Angeles (LAX)
AY 4143 Non-stop Airbus A321 (321) 4:39 Effective 2026-05-21 through 2026-06-05
Codeshare flight, operated by American Airlines.(AA 613)
Mon,Wed-Fri 20:20 Chicago O'Hare (ORD) 3 22:59 Los Angeles (LAX)
AY 4143 Non-stop Airbus A321 (321) 4:39 Effective 2026-06-10 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 613)
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This flight number is listed as serving the following routes:


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Finnair flight AY 4143: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
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)
Direct Codeshare Flights:
Finnair AY4143
15:51
Memphis (MEM)

18:00
Chicago O'Hare (ORD) 3
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4383)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Finnair AY4143
16:06
Memphis (MEM)

18:00
Chicago O'Hare (ORD) 3
Effective 2026-04-09 through 2026-05-14
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3747)
Duration: 1:54, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Finnair AY4143
16:49
Memphis (MEM)

18:35
Chicago O'Hare (ORD) 3
Effective 2026-08-05 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1649)
Duration: 1:46, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4143
16:49
Memphis (MEM)

18:35
Chicago O'Hare (ORD) 3
Effective 2026-08-16 through 2026-09-01
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1649)
Duration: 1:46, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4143
16:49
Memphis (MEM)

18:35
Chicago O'Hare (ORD) 3
Operates only on 2026-09-08
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1649)
Duration: 1:46, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4143
20:20
Chicago O'Hare (ORD) 3

22:59
Los Angeles (LAX)
Effective 2026-05-21 through 2026-06-05
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 613)
Duration: 4:39, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Finnair AY4143
20:20
Chicago O'Hare (ORD) 3

22:59
Los Angeles (LAX)
Effective 2026-06-10 through 2026-07-01
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 613)
Duration: 4:39, non-stop
Airbus A321 (321)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Los Angeles (LAX)
  • Chicago O'Hare (ORD) - San Diego (SAN)
  • Memphis (MEM) - Chicago O'Hare (ORD)
All Finnair flights
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