Alaska Airlines
flight
AS 4431:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-01-06 through 2026-01-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4927)
Duration: 1:27, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-01-19 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4927)
Duration: 1:27, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 2:37, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 3:54, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Operates only on 2026-01-18
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 4927)
Duration: 1:27, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-02-12 through 2026-02-19
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 3:32, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-02-22 through 2026-03-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 3:32, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-02-17 through 2026-02-25
Mon
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 3:32, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-03-02 through 2026-03-04
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by American Airlines.
(AA 3138)
Duration: 3:32, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3707)
Duration: 0:58, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3485)
Duration: 0:56, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4990)
Duration: 1:02, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4431
Operates only on 2026-01-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1317)
Duration: 2:18, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
-
Codeshare flight, operated by American Airlines.
(AA 1317)
Duration: 2:18, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3485)
Duration: 1:09, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4990)
Duration: 1:12, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3707)
Duration: 1:13, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4219)
Duration: 2:05, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4431
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4219)
Duration: 2:09, non-stop Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
- Chicago O'Hare (ORD) - Rochester (ROC)
- College Station (CLL) - Dallas Fort Worth (DFW)
- Dallas Fort Worth (DFW) - Jacksonville (JAX)
- Dallas Fort Worth (DFW) - San Jose (SJC)
- Fort Wayne (FWA) - Chicago O'Hare (ORD)
- Louisville (SDF) - Dallas Fort Worth (DFW)