Southwest Airlines flight WN 4528: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 07:40 Houston Hobby (HOU) 08:35 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:40 Houston Hobby (HOU) 08:35 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-01-11 through 2026-01-16
Mon,Sun 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-02-01 through 2026-02-06
Mon,Sun 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-02-17 through 2026-02-23
Mon 07:50 Houston Hobby (HOU) 08:45 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Operates only on 2026-03-02
Sat 08:20 Houston Hobby (HOU) 09:20 Austin (AUS)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 08:30 Tampa (TPA) 10:05 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-04-09 through 2026-06-01
Sun 08:50 Tampa (TPA) 10:25 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-04-12 through 2026-05-17
Sun 08:50 Tampa (TPA) 10:25 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Operates only on 2026-05-31
Mon,Thu,Fri 09:10 Austin (AUS) 12:15 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 09:10 Austin (AUS) 12:15 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-01-11 through 2026-01-16
Mon,Sun 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-01 through 2026-02-06
Mon,Sun 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-17 through 2026-02-23
Mon 09:20 Austin (AUS) 10:35 Harlingen (HRL)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2026-03-02
Sat 09:30 Austin (AUS) 12:35 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2026-02-07
Sat 09:55 Austin (AUS) 12:00 Saint Louis (STL) 2
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-02-14 through 2026-02-28
Tue,Wed 10:10 Tampa (TPA) 11:45 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-04-07 through 2026-06-03
Sat 10:15 Tampa (TPA) 11:50 Atlanta (ATL) N
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-04-11 through 2026-05-30
Tue,Wed 10:30 Portland (PWM) 12:05 Baltimore (BWI)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 12:00 Sarasota/Bradenton (SRQ) 13:50 Dallas Love Field (DAL) 1
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-03-05 through 2026-04-06
Tue,Wed 12:40 Baltimore (BWI) 14:40 Albuquerque (ABQ)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 4:00 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 12:50 Atlanta (ATL) N 14:30 Pittsburgh (PIT)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 12:50 Atlanta (ATL) N 14:30 Pittsburgh (PIT)
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-02-20 through 2026-03-01
Sun 14:05 Baltimore (BWI) 16:05 Albuquerque (ABQ)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 15:30 Baltimore (BWI) 17:30 Albuquerque (ABQ)
WN 4528 Non-stop Boeing 737-800 (73H) 4:00 Effective 2026-06-04 through 2026-08-03
Sat 16:25 Las Vegas Harry Reid (LAS) 1 21:40 Saint Louis (STL) 2
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-08-08 through 2026-09-26
Tue,Wed 18:10 Sarasota/Bradenton (SRQ) 20:00 Dallas Love Field (DAL) 1
WN 4528 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 19:25 Las Vegas Harry Reid (LAS) 1 00:35 Saint Louis (STL) 2
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-08-06 through 2026-09-28
The flight arrives 1 day after departure.
Mon-Fri 19:40 Austin (AUS) 20:50 Harlingen (HRL)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 19:40 Austin (AUS) 20:50 Harlingen (HRL)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-01-18 through 2026-01-23
Mon-Fri 19:40 Austin (AUS) 20:50 Harlingen (HRL)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 19:40 Austin (AUS) 20:50 Harlingen (HRL)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-02-08 through 2026-02-11
Tue,Wed 19:40 Austin (AUS) 20:50 Harlingen (HRL)
WN 4528 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-02-18 through 2026-03-04
Non-Direct Flights:
Mon,Thu,Fri 07:40 Houston Hobby (HOU) 12:15 Atlanta (ATL) N
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:40 Houston Hobby (HOU) 12:15 Atlanta (ATL) N
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-01-11 through 2026-01-16
Mon,Sun 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-02-01 through 2026-02-06
Mon,Sun 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-02-17 through 2026-02-23
Mon 07:50 Houston Hobby (HOU) 10:35 Harlingen (HRL)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 2:45 Operates only on 2026-03-02
Sat 08:20 Houston Hobby (HOU) 12:00 Saint Louis (STL) 2
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 09:10 Austin (AUS) 14:30 Pittsburgh (PIT)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 4:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 09:10 Austin (AUS) 14:30 Pittsburgh (PIT)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 4:20 Effective 2026-02-20 through 2026-03-01
Tue,Wed 10:30 Portland (PWM) 14:40 Albuquerque (ABQ)
WN 4528 1-stop Boeing 737-700 (Scimitar Winglets) 6:10 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 07:40 Houston Hobby (HOU) 14:30 Pittsburgh (PIT)
WN 4528 2-stop Boeing 737-700 (Scimitar Winglets) 5:50 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:40 Houston Hobby (HOU) 14:30 Pittsburgh (PIT)
WN 4528 2-stop Boeing 737-700 (Scimitar Winglets) 5:50 Effective 2026-02-20 through 2026-03-01
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4528: Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

08:35
Austin (AUS)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

08:35
Austin (AUS)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

08:45
Austin (AUS)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
08:20
Houston Hobby (HOU)

09:20
Austin (AUS)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
08:30
Tampa (TPA)

10:05
Atlanta (ATL) N
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4528
08:50
Tampa (TPA)

10:25
Atlanta (ATL) N
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
08:50
Tampa (TPA)

10:25
Atlanta (ATL) N
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
09:10
Austin (AUS)

12:15
Atlanta (ATL) N
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:10
Austin (AUS)

12:15
Atlanta (ATL) N
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:20
Austin (AUS)

10:35
Harlingen (HRL)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
09:30
Austin (AUS)

12:35
Atlanta (ATL) N
Operates only on 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
09:55
Austin (AUS)

12:00
Saint Louis (STL) 2
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
10:10
Tampa (TPA)

11:45
Atlanta (ATL) N
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4528
10:15
Tampa (TPA)

11:50
Atlanta (ATL) N
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
10:30
Portland (PWM)

12:05
Baltimore (BWI)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
12:00
Sarasota/Bradenton (SRQ)

13:50
Dallas Love Field (DAL) 1
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
12:40
Baltimore (BWI)

14:40
Albuquerque (ABQ)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
12:50
Atlanta (ATL) N

14:30
Pittsburgh (PIT)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
12:50
Atlanta (ATL) N

14:30
Pittsburgh (PIT)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
14:05
Baltimore (BWI)

16:05
Albuquerque (ABQ)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
15:30
Baltimore (BWI)

17:30
Albuquerque (ABQ)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4528
16:25
Las Vegas Harry Reid (LAS) 1

21:40
Saint Louis (STL) 2
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
18:10
Sarasota/Bradenton (SRQ)

20:00
Dallas Love Field (DAL) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4528
19:25
Las Vegas Harry Reid (LAS) 1

00:35(+1)
Saint Louis (STL) 2
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4528
19:40
Austin (AUS)

20:50
Harlingen (HRL)
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
19:40
Austin (AUS)

20:50
Harlingen (HRL)
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
19:40
Austin (AUS)

20:50
Harlingen (HRL)
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
19:40
Austin (AUS)

20:50
Harlingen (HRL)
Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4528
19:40
Austin (AUS)

20:50
Harlingen (HRL)
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

12:15
Atlanta (ATL) N
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

12:15
Atlanta (ATL) N
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:50
Houston Hobby (HOU)

10:35
Harlingen (HRL)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
08:20
Houston Hobby (HOU)

12:00
Saint Louis (STL) 2
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
09:10
Austin (AUS)

14:30
Pittsburgh (PIT)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
09:10
Austin (AUS)

14:30
Pittsburgh (PIT)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
10:30
Portland (PWM)

14:40
Albuquerque (ABQ)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

14:30
Pittsburgh (PIT)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:50, 2-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4528
07:40
Houston Hobby (HOU)

14:30
Pittsburgh (PIT)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 5:50, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Pittsburgh (PIT)
  • Austin (AUS) - Atlanta (ATL)
  • Austin (AUS) - Harlingen (HRL)
  • Austin (AUS) - Pittsburgh (PIT)
  • Austin (AUS) - Saint Louis (STL)
  • Baltimore (BWI) - Albuquerque (ABQ)
  • Houston Hobby (HOU) - Atlanta (ATL)
  • Houston Hobby (HOU) - Austin (AUS)
  • Houston Hobby (HOU) - Harlingen (HRL)
  • Houston Hobby (HOU) - Pittsburgh (PIT)
  • Houston Hobby (HOU) - Saint Louis (STL)
  • Las Vegas Harry Reid (LAS) - Saint Louis (STL)
  • Portland (PWM) - Albuquerque (ABQ)
  • Portland (PWM) - Baltimore (BWI)
  • Sarasota/Bradenton (SRQ) - Dallas Love Field (DAL)
  • Tampa (TPA) - Atlanta (ATL)
All Southwest Airlines flights
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