Southwest Airlines
WN1438Boston to St. Louis
Southwest Airlines flight WN1438 flies from Boston (BOS) to St. Louis (STL), 1,681 km. Over August 2025 to July 2026 it usually arrives about 3 minutes late: 82% of 350 flights arrived within 15 minutes of schedule and 0.3% were cancelled (US Department of Transportation data).
On-time record, last 12 months
82%
on time (within 15 min)
10%
more than 30 min late
0.3%
cancelled
+3 min
average arrival vs schedule
Every operation of WN1438, August 2025 to July 2026: 350 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN1438
- Boston (BOS) to St. Louis (STL)64 flights
- Colorado Springs (COS) to Denver (DEN)58 flights
- San Diego (SAN) to San Francisco (SFO)47 flights
- Washington (DCA) to Houston (HOU)34 flights
- Portland (PDX) to Denver (DEN)33 flights
- Jacksonville (JAX) to Nashville (BNA)31 flights
- Birmingham-Shuttlesworth (BHM) to Phoenix Sky Harbor (PHX)24 flights
- Denver (DEN) to Colorado Springs (COS)11 flights
- Houston (HOU) to Long Beach (LGB)8 flights
- Austin Bergstrom (AUS) to Jacksonville (JAX)8 flights
Other flights from Boston to St. Louis
More about Boston (BOS) and St. Louis (STL).
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