Alaska Airlines flight AS 4389: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 10:35 Louisville (SDF) 12:19 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:44 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 5602)
Sat 10:38 Greenville/Spartanburg (GSP) 12:06 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 900 (CR9) 1:28 Valid until 2026-01-03
Codeshare flight, operated by American Airlines.(AA 5110)
Mon-Fri,Sun 10:43 Greenville/Spartanburg (GSP) 12:14 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:31 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 5110)
Daily 10:48 Louisville (SDF) 12:32 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:44 Effective 2026-04-07 through 2026-04-29
Codeshare flight, operated by American Airlines.(AA 5440)
Thu,Fri 10:48 Louisville (SDF) 12:32 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Airbus A319 (319) 1:44 Effective 2026-04-30 through 2026-05-01
Codeshare flight, operated by American Airlines.(AA 3028)
Mon-Sat 10:48 Louisville (SDF) 12:32 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:44 Effective 2026-05-02 through 2026-05-09
Codeshare flight, operated by American Airlines.(AA 5440)
Sun 10:48 Louisville (SDF) 12:32 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Boeing 737-800 (738) 1:44 Operates only on 2026-05-03
Codeshare flight, operated by American Airlines.(AA 3028)
Daily 10:48 Louisville (SDF) 12:32 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:44 Effective 2026-05-10 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 5440)
Daily 10:50 Louisville (SDF) 12:40 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:50 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 5389)
Daily 10:52 Louisville (SDF) 12:35 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:43 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 5400)
Mon-Fri 10:56 Louisville (SDF) 12:44 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Embraer EMB 175 (E75) 1:48 Effective 2026-02-13 through 2026-03-06
Codeshare flight, operated by American Airlines.(AA 4633)
Thu 11:04 Louisville (SDF) 12:53 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Embraer EMB 175 (E75) 1:49 Operates only on 2026-02-12
Codeshare flight, operated by American Airlines.(AA 4633)
Daily 11:08 Louisville (SDF) 12:52 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:44 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 5602)
Sun 11:10 Louisville (SDF) 12:54 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 900 (CR9) 1:44 Effective 2026-02-15 through 2026-03-01
Codeshare flight, operated by American Airlines.(AA 5602)
Mon-Fri,Sun 11:11 Louisville (SDF) 12:53 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-03-08 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 4768)
Daily 11:13 Louisville (SDF) 12:53 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:40 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 5602)
Daily 11:16 Louisville (SDF) 12:59 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 700 (CR7) 1:43 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 5203)
Sat 11:18 Louisville (SDF) 13:00 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Embraer EMB 175 (E75) 1:42 Effective 2026-03-14 through 2026-04-04
Codeshare flight, operated by American Airlines.(AA 4768)
Sat 11:30 Louisville (SDF) 13:14 Ronald Reagan Washington (DCA) 2
AS 4389 Non-stop Canadair CRJ 900 (CR9) 1:44 Effective 2026-02-14 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 5602)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4389: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4389
10:35
Louisville (SDF)

12:19
Ronald Reagan Washington (DCA) 2
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5602)
Duration: 1:44, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:38
Greenville/Spartanburg (GSP)

12:06
Ronald Reagan Washington (DCA) 2
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 5110)
Duration: 1:28, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:43
Greenville/Spartanburg (GSP)

12:14
Ronald Reagan Washington (DCA) 2
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5110)
Duration: 1:31, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:48
Louisville (SDF)

12:32
Ronald Reagan Washington (DCA) 2
Effective 2026-04-07 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5440)
Duration: 1:44, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:48
Louisville (SDF)

12:32
Ronald Reagan Washington (DCA) 2
Effective 2026-04-30 through 2026-05-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3028)
Duration: 1:44, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:48
Louisville (SDF)

12:32
Ronald Reagan Washington (DCA) 2
Effective 2026-05-02 through 2026-05-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 5440)
Duration: 1:44, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:48
Louisville (SDF)

12:32
Ronald Reagan Washington (DCA) 2
Operates only on 2026-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3028)
Duration: 1:44, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:48
Louisville (SDF)

12:32
Ronald Reagan Washington (DCA) 2
Effective 2026-05-10 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5440)
Duration: 1:44, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:50
Louisville (SDF)

12:40
Ronald Reagan Washington (DCA) 2
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5389)
Duration: 1:50, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:52
Louisville (SDF)

12:35
Ronald Reagan Washington (DCA) 2
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5400)
Duration: 1:43, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
10:56
Louisville (SDF)

12:44
Ronald Reagan Washington (DCA) 2
Effective 2026-02-13 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4633)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:04
Louisville (SDF)

12:53
Ronald Reagan Washington (DCA) 2
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4633)
Duration: 1:49, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:08
Louisville (SDF)

12:52
Ronald Reagan Washington (DCA) 2
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5602)
Duration: 1:44, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:10
Louisville (SDF)

12:54
Ronald Reagan Washington (DCA) 2
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5602)
Duration: 1:44, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:11
Louisville (SDF)

12:53
Ronald Reagan Washington (DCA) 2
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4768)
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:13
Louisville (SDF)

12:53
Ronald Reagan Washington (DCA) 2
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5602)
Duration: 1:40, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:16
Louisville (SDF)

12:59
Ronald Reagan Washington (DCA) 2
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5203)
Duration: 1:43, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:18
Louisville (SDF)

13:00
Ronald Reagan Washington (DCA) 2
Effective 2026-03-14 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4768)
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4389
11:30
Louisville (SDF)

13:14
Ronald Reagan Washington (DCA) 2
Effective 2026-02-14 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 5602)
Duration: 1:44, non-stop
Canadair CRJ 900 (CR9)
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This flight number is listed as serving the following routes:
  • Greenville/Spartanburg (GSP) - Ronald Reagan Washington (DCA)
  • Louisville (SDF) - Ronald Reagan Washington (DCA)
All Alaska Airlines flights
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