Southwest Airlines

WN3948St. Louis to Boston

Name: Southwest Airlines WN3948 St. Louis to Boston: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN3948 flies from St. Louis (STL) to Boston (BOS), 1,681 km. Over August 2025 to July 2026 it usually arrives about 11 minutes late: 75% of 204 flights arrived within 15 minutes of schedule and 1% were cancelled (US Department of Transportation data).

On-time record, last 12 months

75%

on time (within 15 min)

15%

more than 30 min late

cancelled

+11 min

average arrival vs schedule

Every operation of WN3948, August 2025 to July 2026: 204 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN3948

St. Louis (STL) to Boston (BOS)49 flights
Oklahoma City (OKC) to Denver (DEN)35 flights
St. Louis (STL) to Orlando (MCO)34 flights
San Jose (SJC) to Phoenix Sky Harbor (PHX)26 flights
Baltimore (BWI) to Cincinnati Northern Kentucky (CVG)15 flights
Cincinnati Northern Kentucky (CVG) to Orlando (MCO)15 flights
Phoenix Sky Harbor (PHX) to Dallas Love Field (DAL)9 flights
El Paso (ELP) to San Antonio (SAT)8 flights
Salt Lake City (SLC) to Los Angeles (LAX)7 flights
Raleigh-durham (RDU) to Baltimore (BWI)2 flights

Other flights from St. Louis to Boston

WN1163 WN1342 WN1840 WN2071 WN2114 WN2176 WN2378 WN2416 WN2443 WN2507 WN2567 WN2746

More about St. Louis (STL) and Boston (BOS).

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