Finnair flight AY 4037: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 14:13 Louisville (SDF) 15:54 Dallas Fort Worth (DFW)
AY 4037 Non-stop Canadair CRJ 900 (CR9) 2:41 Effective 2026-01-06 through 2026-01-20
Codeshare flight, operated by American Airlines.(AA 5610)
Mon,Wed-Sun 14:13 Louisville (SDF) 15:54 Dallas Fort Worth (DFW)
AY 4037 Non-stop Canadair CRJ 900 (CR9) 2:41 Effective 2026-01-22 through 2026-02-02
Codeshare flight, operated by American Airlines.(AA 5610)
Mon,Tue,Thu-Sun 14:13 Louisville (SDF) 15:54 Dallas Fort Worth (DFW)
AY 4037 Non-stop Canadair CRJ 900 (CR9) 2:41 Effective 2026-02-03 through 2026-02-10
Codeshare flight, operated by American Airlines.(AA 5610)
Wed 14:13 Louisville (SDF) 15:54 Dallas Fort Worth (DFW)
AY 4037 Non-stop Canadair CRJ 900 (CR9) 2:41 Operates only on 2026-02-11
Codeshare flight, operated by American Airlines.(AA 5610)
Daily 14:18 Austin (AUS) 15:32 Dallas Fort Worth (DFW)
AY 4037 Non-stop Boeing 737 MAX 8 (7M8) 1:14 Effective 2026-10-05 through 2026-10-24
Codeshare flight, operated by American Airlines.(AA 1138)
Mon,Wed,Fri 16:35 Dallas Fort Worth (DFW) 20:14 Fort Lauderdale (FLL) 3
AY 4037 Non-stop Boeing 737-800 (738) 2:39 Effective 2026-05-01 through 2026-05-15
Codeshare flight, operated by American Airlines.(AA 2626)
Daily 18:50 Dallas Fort Worth (DFW) 20:14 Reno (RNO)
AY 4037 Non-stop Boeing 737-800 (738) 3:24 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1636)
Daily 18:50 Dallas Fort Worth (DFW) 20:09 Reno (RNO)
AY 4037 Non-stop Boeing 737-800 (738) 3:19 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 1636)
Wed-Sat 20:25 Chicago O'Hare (ORD) 3 23:17 Houston George Bush (IAH) A
AY 4037 Non-stop Airbus A319 (319) 2:52 Effective 2026-09-09 through 2026-10-03
Codeshare flight, operated by American Airlines.(AA 3144)
Wed-Sat 20:33 Chicago O'Hare (ORD) 3 23:31 Houston George Bush (IAH) A
AY 4037 Non-stop Airbus A319 (319) 2:58 Effective 2026-08-05 through 2026-08-08
Codeshare flight, operated by American Airlines.(AA 3144)
Wed-Fri 20:33 Chicago O'Hare (ORD) 3 23:31 Houston George Bush (IAH) A
AY 4037 Non-stop Airbus A319 (319) 2:58 Effective 2026-08-19 through 2026-09-04
Codeshare flight, operated by American Airlines.(AA 3144)
Sat 20:33 Chicago O'Hare (ORD) 3 23:31 Houston George Bush (IAH) A
AY 4037 Non-stop Airbus A319 (319) 2:58 Operates only on 2026-09-05
Codeshare flight, operated by American Airlines.(AA 3144)
Mon,Wed,Thu,Sat,Sun 20:59 Chicago O'Hare (ORD) 3 23:53 Houston George Bush (IAH) A
AY 4037 Non-stop Airbus A319 (319) 2:54 Effective 2026-03-29 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 3144)
Tue,Thu,Sun 23:57 Los Angeles (LAX) 06:05 Chicago O'Hare (ORD) 3
AY 4037 Non-stop Boeing 737-800 (738) 4:08 Valid until 2026-01-01
Codeshare flight, operated by American Airlines.(AA 753)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:


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Finnair flight AY 4037: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY4037
14:13
Louisville (SDF)

15:54
Dallas Fort Worth (DFW)
Effective 2026-01-06 through 2026-01-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5610)
Duration: 2:41, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Finnair AY4037
14:13
Louisville (SDF)

15:54
Dallas Fort Worth (DFW)
Effective 2026-01-22 through 2026-02-02
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5610)
Duration: 2:41, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Finnair AY4037
14:13
Louisville (SDF)

15:54
Dallas Fort Worth (DFW)
Effective 2026-02-03 through 2026-02-10
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5610)
Duration: 2:41, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Finnair AY4037
14:13
Louisville (SDF)

15:54
Dallas Fort Worth (DFW)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 5610)
Duration: 2:41, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Finnair AY4037
14:18
Austin (AUS)

15:32
Dallas Fort Worth (DFW)
Effective 2026-10-05 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1138)
Duration: 1:14, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Finnair AY4037
16:35
Dallas Fort Worth (DFW)

20:14
Fort Lauderdale (FLL) 3
Effective 2026-05-01 through 2026-05-15
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 2626)
Duration: 2:39, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Finnair AY4037
18:50
Dallas Fort Worth (DFW)

20:14
Reno (RNO)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1636)
Duration: 3:24, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Finnair AY4037
18:50
Dallas Fort Worth (DFW)

20:09
Reno (RNO)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1636)
Duration: 3:19, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Finnair AY4037
20:25
Chicago O'Hare (ORD) 3

23:17
Houston George Bush (IAH) A
Effective 2026-09-09 through 2026-10-03
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3144)
Duration: 2:52, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4037
20:33
Chicago O'Hare (ORD) 3

23:31
Houston George Bush (IAH) A
Effective 2026-08-05 through 2026-08-08
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3144)
Duration: 2:58, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4037
20:33
Chicago O'Hare (ORD) 3

23:31
Houston George Bush (IAH) A
Effective 2026-08-19 through 2026-09-04
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3144)
Duration: 2:58, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4037
20:33
Chicago O'Hare (ORD) 3

23:31
Houston George Bush (IAH) A
Operates only on 2026-09-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3144)
Duration: 2:58, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4037
20:59
Chicago O'Hare (ORD) 3

23:53
Houston George Bush (IAH) A
Effective 2026-03-29 through 2026-04-06
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3144)
Duration: 2:54, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Finnair AY4037
23:57
Los Angeles (LAX)

06:05(+1)
Chicago O'Hare (ORD) 3
Valid until 2026-01-01
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 753)
Duration: 4:08, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
This flight number is listed as serving the following routes:
  • Austin (AUS) - Dallas Fort Worth (DFW)
  • Chicago O'Hare (ORD) - Houston George Bush (IAH)
  • Dallas Fort Worth (DFW) - Fort Lauderdale (FLL)
  • Dallas Fort Worth (DFW) - Reno (RNO)
  • Los Angeles (LAX) - Chicago O'Hare (ORD)
  • Louisville (SDF) - Dallas Fort Worth (DFW)
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