Southwest Airlines flight WN 4638: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 06:45 Santa Ana (SNA) 10:15 Denver (DEN)
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-08-04 through 2026-09-30
Sat 06:45 Santa Ana (SNA) 10:15 Denver (DEN)
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-08-08 through 2026-09-26
Sun 07:50 Santa Ana (SNA) 11:10 Denver (DEN)
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-08-09 through 2026-09-27
Tue,Wed 08:05 Fort Lauderdale (FLL) 1 09:20 Nashville (BNA)
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 09:35 Fort Lauderdale (FLL) 1 10:50 Nashville (BNA)
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-04 through 2026-08-03
Sun 09:40 Fort Lauderdale (FLL) 1 11:00 Nashville (BNA)
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-07 through 2026-08-02
Sat 14:15 Reno (RNO) 16:05 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-04-11 through 2026-05-30
Sat 14:45 Denver (DEN) 16:30 San Jose (SJC) B
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-01-10 through 2026-02-07
Sat 14:45 Denver (DEN) 16:30 San Jose (SJC) B
WN 4638 Non-stop Boeing 737-800 (73H) 2:45 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 15:40 Denver (DEN) 17:25 San Jose (SJC) B
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 15:40 Denver (DEN) 17:25 San Jose (SJC) B
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-02-20 through 2026-03-01
Sun 15:50 Reno (RNO) 17:35 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Operates only on 2026-05-24
Sat 16:35 San Antonio (SAT) A 17:35 Las Vegas Harry Reid (LAS) 1
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Valid until 2026-01-03
Sun 16:40 Reno (RNO) 18:30 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-04-12 through 2026-05-17
Sun 16:40 Reno (RNO) 18:30 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Operates only on 2026-05-31
Mon,Thu,Fri 17:00 Santa Ana (SNA) 20:15 Denver (DEN)
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-08-06 through 2026-09-28
Tue,Wed 17:05 Reno (RNO) 18:55 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 17:25 Reno (RNO) 19:10 Phoenix Sky Harbor (PHX) 4
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-04-09 through 2026-06-01
Sun 19:05 Phoenix Sky Harbor (PHX) 4 21:50 Denver (DEN)
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-04-12 through 2026-05-17
Sun 19:05 Phoenix Sky Harbor (PHX) 4 21:50 Denver (DEN)
WN 4638 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Operates only on 2026-05-31
Mon,Thu,Fri 19:50 Phoenix Sky Harbor (PHX) 4 01:05 Milwaukee (MKE)
WN 4638 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-04-09 through 2026-06-01
The flight arrives 1 day after departure.
Non-Direct Flights:
Sun 16:40 Reno (RNO) 21:50 Denver (DEN)
WN 4638 1-stop Boeing 737-700 (Scimitar Winglets) 4:10 Effective 2026-04-12 through 2026-05-17
Sun 16:40 Reno (RNO) 21:50 Denver (DEN)
WN 4638 1-stop Boeing 737-700 (Scimitar Winglets) 4:10 Operates only on 2026-05-31
Mon,Thu,Fri 17:25 Reno (RNO) 01:05 Milwaukee (MKE)
WN 4638 1-stop Boeing 737 MAX 8 (7M8) 5:40 Effective 2026-04-09 through 2026-06-01
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4638: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4638
06:45
Santa Ana (SNA)

10:15
Denver (DEN)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
06:45
Santa Ana (SNA)

10:15
Denver (DEN)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
07:50
Santa Ana (SNA)

11:10
Denver (DEN)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
08:05
Fort Lauderdale (FLL) 1

09:20
Nashville (BNA)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
09:35
Fort Lauderdale (FLL) 1

10:50
Nashville (BNA)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
09:40
Fort Lauderdale (FLL) 1

11:00
Nashville (BNA)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
14:15
Reno (RNO)

16:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
14:45
Denver (DEN)

16:30
San Jose (SJC) B
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
14:45
Denver (DEN)

16:30
San Jose (SJC) B
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4638
15:40
Denver (DEN)

17:25
San Jose (SJC) B
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
15:40
Denver (DEN)

17:25
San Jose (SJC) B
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
15:50
Reno (RNO)

17:35
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
16:35
San Antonio (SAT) A

17:35
Las Vegas Harry Reid (LAS) 1
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
16:40
Reno (RNO)

18:30
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
16:40
Reno (RNO)

18:30
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
17:00
Santa Ana (SNA)

20:15
Denver (DEN)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
17:05
Reno (RNO)

18:55
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
17:25
Reno (RNO)

19:10
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4638
19:05
Phoenix Sky Harbor (PHX) 4

21:50
Denver (DEN)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
19:05
Phoenix Sky Harbor (PHX) 4

21:50
Denver (DEN)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4638
19:50
Phoenix Sky Harbor (PHX) 4

01:05(+1)
Milwaukee (MKE)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN4638
16:40
Reno (RNO)

21:50
Denver (DEN)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4638
16:40
Reno (RNO)

21:50
Denver (DEN)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4638
17:25
Reno (RNO)

01:05(+1)
Milwaukee (MKE)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:40, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Denver (DEN) - San Jose (SJC)
  • Fort Lauderdale (FLL) - Nashville (BNA)
  • Phoenix Sky Harbor (PHX) - Denver (DEN)
  • Phoenix Sky Harbor (PHX) - Milwaukee (MKE)
  • Reno (RNO) - Denver (DEN)
  • Reno (RNO) - Milwaukee (MKE)
  • Reno (RNO) - Phoenix Sky Harbor (PHX)
  • San Antonio (SAT) - Las Vegas Harry Reid (LAS)
  • Santa Ana (SNA) - Denver (DEN)
All Southwest Airlines flights
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