Southwest Airlines flight WN 3399: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 07:20 Boston Logan (BOS) B 09:30 Saint Louis (STL) 2
WN 3399 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-04 through 2025-11-12
Mon-Thu 07:20 Boston Logan (BOS) B 09:30 Saint Louis (STL) 2
WN 3399 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-17 through 2025-11-20
Mon-Fri 07:20 Boston Logan (BOS) B 09:30 Saint Louis (STL) 2
WN 3399 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-02 through 2025-12-11
Mon-Wed 07:20 Boston Logan (BOS) B 09:30 Saint Louis (STL) 2
WN 3399 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-15 through 2025-12-17
Wed,Thu 07:20 Boston Logan (BOS) B 09:30 Saint Louis (STL) 2
WN 3399 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-24 through 2026-01-01
Fri 08:40 San Diego (SAN) 1 13:55 Houston Hobby (HOU)
WN 3399 Non-stop Boeing 737-800 (73H) 3:15 Operates only on 2025-07-04
Sat 17:30 Savannah (SAV) 18:05 Nashville (BNA)
WN 3399 Non-stop Boeing 737-800 (73H) 1:35 Valid until 2025-05-31
Sun 20:05 Phoenix Sky Harbor (PHX) 4 01:25 Midway, Chicago (MDW)
WN 3399 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-06-08 through 2025-08-03
The flight arrives 1 day after departure.
Sun 20:40 Islip (ISP) 23:35 West Palm Beach (PBI)
WN 3399 Non-stop Boeing 737-800 (73H) 2:55 Operates only on 2025-11-30
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3399: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3399
07:20
Boston Logan (BOS) B

09:30
Saint Louis (STL) 2
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
07:20
Boston Logan (BOS) B

09:30
Saint Louis (STL) 2
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
07:20
Boston Logan (BOS) B

09:30
Saint Louis (STL) 2
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
07:20
Boston Logan (BOS) B

09:30
Saint Louis (STL) 2
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
07:20
Boston Logan (BOS) B

09:30
Saint Louis (STL) 2
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
08:40
San Diego (SAN) 1

13:55
Houston Hobby (HOU)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
17:30
Savannah (SAV)

18:05
Nashville (BNA)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3399
20:05
Phoenix Sky Harbor (PHX) 4

01:25(+1)
Midway, Chicago (MDW)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Southwest Airlines WN3399
20:40
Islip (ISP)

23:35
West Palm Beach (PBI)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Boston Logan (BOS) - Saint Louis (STL)
  • Islip (ISP) - West Palm Beach (PBI)
  • Phoenix Sky Harbor (PHX) - Midway, Chicago (MDW)
  • San Diego (SAN) - Houston Hobby (HOU)
  • Savannah (SAV) - Nashville (BNA)
All Southwest Airlines flights
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