Alaska Airlines flight AS 6540: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 05:13 Buffalo (BUF) 06:05 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Airbus A319 (319) 1:52 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 1195)
Daily 05:16 Buffalo (BUF) 06:05 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Airbus A319 (319) 1:49 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1195)
Thu 06:00 Buffalo (BUF) 07:27 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:27 Operates only on 2026-02-12
Codeshare flight, operated by American Airlines.(AA 4645)
Sat 06:00 Buffalo (BUF) 07:15 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-14 through 2026-04-04
Codeshare flight, operated by American Airlines.(AA 4340)
Thu 06:02 Buffalo (BUF) 07:20 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:18 Operates only on 2026-01-01
Codeshare flight, operated by American Airlines.(AA 4511)
Mon-Fri 06:05 Buffalo (BUF) 07:20 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:15 Effective 2026-03-09 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 4340)
Sun 06:09 Buffalo (BUF) 07:11 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Airbus A319 (319) 2:02 Effective 2026-03-08 through 2026-04-05
Codeshare flight, operated by American Airlines.(AA 2156)
Daily 06:26 Buffalo (BUF) 07:25 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Boeing 737-800 (738) 1:59 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 1195)
Daily 06:30 Buffalo (BUF) 07:25 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Boeing 737-800 (738) 1:55 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 1195)
Sat 06:42 Buffalo (BUF) 08:05 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Operates only on 2026-01-10
Codeshare flight, operated by American Airlines.(AA 4595)
Mon-Fri,Sun 07:30 Buffalo (BUF) 08:53 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-07 through 2026-01-16
Codeshare flight, operated by American Airlines.(AA 4595)
Daily 07:30 Buffalo (BUF) 08:53 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Embraer EMB 175 (E75) 2:23 Effective 2026-01-17 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 4595)
Tue 08:00 Buffalo (BUF) 09:05 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Airbus A319 (319) 2:05 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 2155)
Daily 08:11 Buffalo (BUF) 09:05 Chicago O'Hare (ORD) 3
AS 6540 Non-stop Boeing 737-800 (738) 1:54 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 1195)
Mon-Fri 11:16 Knoxville (TYS) 12:59 Ronald Reagan Washington (DCA) 2
AS 6540 Non-stop Canadair CRJ 700 (CR7) 1:43 Effective 2026-02-16 through 2026-03-06
Codeshare flight, operated by American Airlines.(AA 5122)
Daily 16:35 Phoenix Sky Harbor (PHX) 4 18:31 Monterey/Carmel (MRY)
AS 6540 Non-stop Embraer EMB 175 (E75) 1:56 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 3771)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 6540: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS6540
05:13
Buffalo (BUF)

06:05
Chicago O'Hare (ORD) 3
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1195)
Duration: 1:52, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6540
05:16
Buffalo (BUF)

06:05
Chicago O'Hare (ORD) 3
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1195)
Duration: 1:49, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:00
Buffalo (BUF)

07:27
Chicago O'Hare (ORD) 3
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4645)
Duration: 2:27, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:00
Buffalo (BUF)

07:15
Chicago O'Hare (ORD) 3
Effective 2026-03-14 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4340)
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:02
Buffalo (BUF)

07:20
Chicago O'Hare (ORD) 3
Operates only on 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4511)
Duration: 2:18, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:05
Buffalo (BUF)

07:20
Chicago O'Hare (ORD) 3
Effective 2026-03-09 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4340)
Duration: 2:15, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:09
Buffalo (BUF)

07:11
Chicago O'Hare (ORD) 3
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 2156)
Duration: 2:02, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:26
Buffalo (BUF)

07:25
Chicago O'Hare (ORD) 3
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1195)
Duration: 1:59, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:30
Buffalo (BUF)

07:25
Chicago O'Hare (ORD) 3
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1195)
Duration: 1:55, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6540
06:42
Buffalo (BUF)

08:05
Chicago O'Hare (ORD) 3
Operates only on 2026-01-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4595)
Duration: 2:23, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
07:30
Buffalo (BUF)

08:53
Chicago O'Hare (ORD) 3
Effective 2026-01-07 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4595)
Duration: 2:23, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
07:30
Buffalo (BUF)

08:53
Chicago O'Hare (ORD) 3
Effective 2026-01-17 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4595)
Duration: 2:23, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS6540
08:00
Buffalo (BUF)

09:05
Chicago O'Hare (ORD) 3
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 2155)
Duration: 2:05, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS6540
08:11
Buffalo (BUF)

09:05
Chicago O'Hare (ORD) 3
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1195)
Duration: 1:54, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS6540
11:16
Knoxville (TYS)

12:59
Ronald Reagan Washington (DCA) 2
Effective 2026-02-16 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 5122)
Duration: 1:43, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS6540
16:35
Phoenix Sky Harbor (PHX) 4

18:31
Monterey/Carmel (MRY)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3771)
Duration: 1:56, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Chicago O'Hare (ORD)
  • Knoxville (TYS) - Ronald Reagan Washington (DCA)
  • Phoenix Sky Harbor (PHX) - Monterey/Carmel (MRY)
All Alaska Airlines flights
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