Southwest Airlines
WN3143Ontario to Baltimore
Southwest Airlines flight WN3143 flies from Ontario (ONT) to Baltimore (BWI), 3,666 km. Over August 2025 to July 2026 it usually arrives about 3 minutes late: 79% of 226 flights arrived within 15 minutes of schedule and 0.4% were cancelled (US Department of Transportation data).
On-time record, last 12 months
79%
on time (within 15 min)
10%
more than 30 min late
0.4%
cancelled
+3 min
average arrival vs schedule
Every operation of WN3143, August 2025 to July 2026: 226 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as WN3143
- Ontario (ONT) to Baltimore (BWI)58 flights
- Las Vegas (LAS) to Colorado Springs (COS)54 flights
- Washington (DCA) to St. Louis (STL)47 flights
- Tampa (TPA) to Denver (DEN)31 flights
- Houston (HOU) to Sacramento (SMF)18 flights
- Ontario (ONT) to Oakland (OAK)8 flights
- Las Vegas (LAS) to Long Beach (LGB)4 flights
- Fort Myers (RSW) to Buffalo Niagara (BUF)3 flights
- Raleigh-durham (RDU) to Las Vegas (LAS)1 flights
- Las Vegas (LAS) to Ontario (ONT)1 flights
Other flights from Ontario to Baltimore
More about Ontario (ONT) and Baltimore (BWI).
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