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WN4123 Flight Status Southwest Airlines: Baltimore to Boston (SWA4123)

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WN 4123 Baltimore to Boston Flight Status

Southwest Airlines Flight WN4123 from Baltimore Washington International Airport BWI to Boston Logan International Airport BOS is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on December 3rd, 2025.
Check the table below for WN4123's most recent flight history:

WN 4123 Flight Status & Schedule

Date Departure Arrival Status
Dec 03 17:55 19:04
Landed
 Track >
Dec 02 18:16 19:25
Landed
 Track >
< All BWI Departures All BOS Arrivals >

Southwest Airlines WN 4123 Baltimore to Boston Flight Information

Southwest Airlines Flight WN4123 connects Baltimore, United States to Boston, United States, taking off from Baltimore Washington International Airport BWI and landing at Boston Logan International Airport BOS.

How long is the WN4123 flight from Baltimore to Boston?

The average flight time from Baltimore to Boston is 1 hour and 9 minutes. The flight distance is 594 km / 369 miles and the average flight speed is 516 km/h / 321 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4123 Baltimore to Boston?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4123 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4123 arriving at?

Flight WN4123 arrives at Boston Logan International Airport (BOS) Terminal B.

When was the latest WN4123 flight?

The latest flight took off on Thursday, December 4th, 2025 with the flight status being Landed on 19:04.

How else can the flight WN4123 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4123, WN 4123, SWA 4123.

How often is flight WN4123 delayed?

On average, 50% of all WN4123 flights are delayed. The average delay is 5 minutes.

Can I get compensation for my delayed or cancelled WN4123 flight or baggage issues?

If your WN4123 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN4123 Flight Tracker above for more details.

WN4123 and Baltimore BWI to Boston BOS Flights

Other flights departing from Baltimore BWI: NK2952, WN1690, NK2561, NK2409

Other flights arriving at Boston BOS: NK2201, 9K5381, NK2564, NK2328

All flights connecting Baltimore BWI to Boston BOS.

WN4123 Southwest Airlines Flight: Baltimore to Boston Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: MS6108 W63207 OO3465 RV1989 BI4225 YV4030 KJ5487 WR8997 BY6397 JA1150
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.