Alaska Airlines
flight
AS 6378:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-03-05 through 2026-03-06
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Codeshare flight, operated by American Airlines.
(AA 5666)
Duration: 1:14, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6378
Operates only on 2026-03-07
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Codeshare flight, operated by American Airlines.
(AA 4915)
Duration: 1:08, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3866)
Duration: 1:01, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3866)
Duration: 1:02, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3866)
Duration: 1:01, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-03-05 through 2026-03-06
Mon
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Codeshare flight, operated by American Airlines.
(AA 5666)
Duration: 1:37, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2397)
Duration: 1:48, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-05-21 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
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Sun
Codeshare flight, operated by American Airlines.
(AA 3724)
Duration: 1:44, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3461)
Duration: 1:04, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-02-12 through 2026-03-02
Mon
Tue
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Sun
Codeshare flight, operated by American Airlines.
(AA 4190)
Duration: 1:05, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Effective 2026-03-08 through 2026-04-06
Mon
Tue
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Wed
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Fri
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Sun
Codeshare flight, operated by American Airlines.
(AA 4190)
Duration: 1:04, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6378
Valid until 2026-01-05
Mon
Tue
Wed
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Codeshare flight, operated by American Airlines.
(AA 3459)
Duration: 1:02, non-stop Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS6378
Valid until 2026-01-03
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Codeshare flight, operated by American Airlines.
(AA 3873)
Duration: 1:18, non-stop Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
- Killeen/Fort Hood (GRK) - Dallas Fort Worth (DFW)
- New Orleans (MSY) - Dallas Fort Worth (DFW)
- Traverse City (TVC) - Chicago O'Hare (ORD)