Southwest Airlines

WN3978Portland to Baltimore

Name: Southwest Airlines WN3978 Portland to Baltimore: on-time record
Creator: TripStow
License: https://tripstow.com/notices

Southwest Airlines flight WN3978 flies from Portland (PDX) to Baltimore (BWI), 3,786 km. Over August 2025 to July 2026 it usually arrives about 5 minutes late: 80% of 252 flights arrived within 15 minutes of schedule and 1.6% were cancelled (US Department of Transportation data).

On-time record, last 12 months

80%

on time (within 15 min)

10%

more than 30 min late

1.6%

cancelled

+5 min

average arrival vs schedule

Every operation of WN3978, August 2025 to July 2026: 252 flights. Source: US Bureau of Transportation Statistics, public domain.

Routes flown as WN3978

Portland (PDX) to Baltimore (BWI)58 flights
Raleigh-durham (RDU) to Austin Bergstrom (AUS)42 flights
Orlando (MCO) to San Juan (SJU)31 flights
Chicago Midway (MDW) to Philadelphia (PHL)28 flights
St. Louis (STL) to San Antonio (SAT)26 flights
New Orleans (MSY) to Chicago Midway (MDW)20 flights
Ontario (ONT) to Denver (DEN)17 flights
San Diego (SAN) to Sacramento (SMF)8 flights
Philadelphia (PHL) to Tampa (TPA)8 flights
Philadelphia (PHL) to Orlando (MCO)5 flights

Other flights from Portland to Baltimore

WN3194 WN4166 AS11 AS374

More about Portland (PDX) and Baltimore (BWI).

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