Alaska Airlines
flight
AS 6645:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-05-21 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2125)
Duration: 1:37, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3441)
Duration: 1:24, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2125)
Duration: 1:43, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2131)
Duration: 1:41, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-05-13 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3441)
Duration: 1:12, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-01-06 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 391)
Duration: 3:04, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-02-08 through 2026-02-11
Mon
Tue
Wed
Thu
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Fri
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Sat
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-
Sun
Codeshare flight, operated by American Airlines.
(AA 391)
Duration: 3:04, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-01-10 through 2026-02-07
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by American Airlines.
(AA 391)
Duration: 3:03, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-02-05 through 2026-02-06
Mon
-
-
Tue
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Wed
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Thu
Fri
Sat
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-
Sun
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Codeshare flight, operated by American Airlines.
(AA 391)
Duration: 3:03, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-09-09 through 2026-10-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3788)
Duration: 1:13, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-10-03 through 2026-10-04
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3441)
Duration: 1:11, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3607)
Duration: 1:14, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-03-10 through 2026-03-17
Mon
-
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Tue
Wed
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Thu
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Fri
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Sat
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Sun
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Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:32, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 648)
Duration: 3:08, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-03-08 through 2026-03-20
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:32, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-03-21 through 2026-04-06
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:32, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-02-18 through 2026-02-25
Mon
Tue
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-
Wed
Thu
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Fri
Sat
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Sun
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-
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:28, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-03-02 through 2026-03-04
Mon
Tue
-
-
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:28, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-02-12 through 2026-02-19
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:28, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-02-22 through 2026-03-06
Mon
-
-
Tue
Wed
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-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 6185)
Duration: 1:28, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3607)
Duration: 1:26, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-09-09 through 2026-10-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3788)
Duration: 1:16, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6645
Effective 2026-10-03 through 2026-10-04
Mon
-
-
Tue
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Wed
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Thu
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Fri
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Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3441)
Duration: 1:15, non-stop Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
- Chicago O'Hare (ORD) - Fort Myers (RSW)
- Dallas Fort Worth (DFW) - Amarillo (AMA)
- Dallas Fort Worth (DFW) - Houston Hobby (HOU)
- Dallas Fort Worth (DFW) - McAllen/Mission (MFE)