Finnair flight AY 4237: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 12:18 Charleston (CHS) 14:37 Dallas Fort Worth (DFW)
AY 4237 Non-stop Embraer EMB 175 (E75) 3:19 Effective 2026-02-12 through 2026-03-03
Codeshare flight, operated by American Airlines.(AA 4125)
Thu-Sat 12:18 Charleston (CHS) 14:37 Dallas Fort Worth (DFW)
AY 4237 Non-stop Embraer EMB 175 (E75) 3:19 Effective 2026-03-05 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 4125)
Mon-Wed,Sun 12:26 Charleston (CHS) 14:41 Dallas Fort Worth (DFW)
AY 4237 Non-stop Embraer EMB 175 (E75) 3:15 Effective 2026-03-08 through 2026-03-11
Codeshare flight, operated by American Airlines.(AA 4125)
Daily 12:36 Charleston (CHS) 14:47 Dallas Fort Worth (DFW)
AY 4237 Non-stop Embraer EMB 175 (E75) 3:11 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 3542)
Daily 14:00 Charleston (CHS) 15:55 Dallas Fort Worth (DFW)
AY 4237 Non-stop Boeing 737-800 (738) 2:55 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1656)
Daily 14:01 Charleston (CHS) 15:55 Dallas Fort Worth (DFW)
AY 4237 Non-stop Boeing 737-800 (738) 2:54 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 1645)
Daily 18:18 Rochester (ROC) 19:27 Chicago O'Hare (ORD) 3
AY 4237 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2026-08-05 through 2026-08-14
Codeshare flight, operated by American Airlines.(AA 4721)
Tue-Fri,Sun 18:18 Rochester (ROC) 19:27 Chicago O'Hare (ORD) 3
AY 4237 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2026-08-16 through 2026-09-04
Codeshare flight, operated by American Airlines.(AA 4721)
Tue,Sat,Sun 18:18 Rochester (ROC) 19:27 Chicago O'Hare (ORD) 3
AY 4237 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2026-09-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 4721)
This flight number is listed as serving the following routes:
Finnair flight AY 4237: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Finnair AY4237
Effective 2026-02-12 through 2026-03-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4125)
Duration: 3:19, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4125)
Duration: 3:19, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-03-08 through 2026-03-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4125)
Duration: 3:15, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3542)
Duration: 3:11, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1656)
Duration: 2:55, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1645)
Duration: 2:54, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-08-05 through 2026-08-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4721)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-08-16 through 2026-09-04
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4721)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)

Direct Codeshare Flights:

Finnair AY4237
Effective 2026-09-05 through 2026-09-08
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4721)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
  • Charleston (CHS) - Dallas Fort Worth (DFW)
  • Rochester (ROC) - Chicago O'Hare (ORD)