Alaska Airlines flight AS 4204: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 16:23 Raleigh/Durham (RDU) 2 17:55 Philadelphia (PHL)
AS 4204 Non-stop Boeing 737-800 (738) 1:32 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 1753)
Sat 18:49 Ronald Reagan Washington (DCA) 2 20:55 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:06 Effective 2026-02-14 through 2026-02-28
Codeshare flight, operated by American Airlines.(AA 4672)
Sat 18:49 Ronald Reagan Washington (DCA) 2 20:51 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2026-03-14 through 2026-04-04
Codeshare flight, operated by American Airlines.(AA 4672)
Wed 19:31 Ronald Reagan Washington (DCA) 2 21:30 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 1:59 Operates only on 2026-02-11
Codeshare flight, operated by American Airlines.(AA 4672)
Mon-Fri,Sun 19:37 Ronald Reagan Washington (DCA) 2 21:39 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2026-03-15 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 4672)
Mon,Tue,Thu-Sun 19:45 Ronald Reagan Washington (DCA) 2 21:33 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 1:48 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 4672)
Daily 19:45 Ronald Reagan Washington (DCA) 2 21:45 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:00 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 4672)
Mon-Fri,Sun 19:56 Ronald Reagan Washington (DCA) 2 22:02 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:06 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by American Airlines.(AA 4672)
Daily 19:59 Ronald Reagan Washington (DCA) 2 22:05 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 2:06 Effective 2026-01-06 through 2026-02-10
Codeshare flight, operated by American Airlines.(AA 4672)
Mon,Tue,Sun 20:50 Phoenix Sky Harbor (PHX) 4 22:55 Sacramento (SMF) A
AS 4204 Non-stop Airbus A321 (321) 2:05 Effective 2026-03-08 through 2026-03-10
Codeshare flight, operated by American Airlines.(AA 1898)
Daily 22:00 Ronald Reagan Washington (DCA) 2 23:53 Louisville (SDF)
AS 4204 Non-stop Embraer EMB 175 (E75) 1:53 Effective 2026-04-07 through 2026-05-12
Codeshare flight, operated by American Airlines.(AA 4672)
This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4204: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4204
16:23
Raleigh/Durham (RDU) 2

17:55
Philadelphia (PHL)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1753)
Duration: 1:32, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4204
18:49
Ronald Reagan Washington (DCA) 2

20:55
Louisville (SDF)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
18:49
Ronald Reagan Washington (DCA) 2

20:51
Louisville (SDF)
Effective 2026-03-14 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:31
Ronald Reagan Washington (DCA) 2

21:30
Louisville (SDF)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:37
Ronald Reagan Washington (DCA) 2

21:39
Louisville (SDF)
Effective 2026-03-15 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:45
Ronald Reagan Washington (DCA) 2

21:33
Louisville (SDF)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 1:48, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:45
Ronald Reagan Washington (DCA) 2

21:45
Louisville (SDF)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:00, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:56
Ronald Reagan Washington (DCA) 2

22:02
Louisville (SDF)
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
19:59
Ronald Reagan Washington (DCA) 2

22:05
Louisville (SDF)
Effective 2026-01-06 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 2:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4204
20:50
Phoenix Sky Harbor (PHX) 4

22:55
Sacramento (SMF) A
Effective 2026-03-08 through 2026-03-10
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1898)
Duration: 2:05, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4204
22:00
Ronald Reagan Washington (DCA) 2

23:53
Louisville (SDF)
Effective 2026-04-07 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4672)
Duration: 1:53, non-stop
Embraer EMB 175 (E75)
This flight number is listed as serving the following routes:
  • Phoenix Sky Harbor (PHX) - Sacramento (SMF)
  • Raleigh/Durham (RDU) - Philadelphia (PHL)
  • Ronald Reagan Washington (DCA) - Louisville (SDF)
All Alaska Airlines flights
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