How long is the WN1221 flight?

The timetable allows 1 h 30 min. Baltimore to Boston is 594 km (369 mi).

Which terminal does WN1221 use?

It usually arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.

What other flight numbers does WN1221 have?

Also listed as SWA1221 (Southwest Airlines' ICAO code) and WN 1221.

WN1221 Flight Status Southwest Airlines: Baltimore to Boston (SWA1221)

WN 1221 Baltimore to Boston Flight Status

Not scheduled today. Latest flight: August 2nd, 2026 ; recent history is in the table below.

This flight continues to Denver (DEN): WN1221 Boston to Denver departs at 12:35 local time on Aug 2.

WN 1221 Flight Status & Schedule Southwest Airlines Baltimore to Boston

Date	From	To	Departure	Arrival	Status	Details
Aug 02	BWI	BOS	11:13	12:16	Landed Late	Track >
Jul 26	BWI	BOS	10:54	11:51	Landed	Track >
Jul 19	BWI	BOS	11:19	12:19	Landed Late	Track >
Jul 12	BWI	BOS	10:44	11:43	Landed	Track >
Jul 05	BWI	BOS	11:00	11:54	Landed	Track >
Jun 28	BWI	BOS	11:32	12:41	Delayed	Track >
Jun 21	BWI	BOS	10:45	11:45	Landed	Track >
Jun 14	BWI	BOS	10:35	11:43	Landed	Track >
Jun 07	BWI	BOS	10:46	11:44	Landed	Track >

Southwest Airlines operates WN 1221 from Baltimore to Boston, a 594 km (369 mi) trip. Its timetable allows 1 h 30 min; in practice it usually takes about 1 h, so it often makes up time. It is not flying today; the last flight, on 2 August 2026, landed 21 minutes late.

< All Baltimore BWI Departures All Boston BOS Arrivals >

About WN 1221

Route: Baltimore Washington International Airport BWI to Boston Logan International Airport BOS
Distance: 594 km (369 mi)
Typical flight time: 1 h
On time: 6 of the last 8
Average delay when late: 23 min

WN 1221 FAQ

How long is the WN1221 flight?: The timetable allows 1 h 30 min. Baltimore to Boston is 594 km (369 mi).
How often is WN1221 late?: 2 of the last 8 flights arrived 15 or more minutes late; when late, by 23 minutes on average.
Which terminal does WN1221 use?: It usually arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does WN1221 have?: Also listed as SWA1221 (Southwest Airlines' ICAO code) and WN 1221.

Southwest Airlines WN1221 News

Incident WN1221 - Southwest B38M at Raleigh/Durham on Nov 29th 2022, Wile wasn't quick enough

WN1221 and Baltimore BWI to Boston BOS Flights

Other flights departing from Baltimore BWI: WN287, WN893, WN1052, WN1469

Other flights arriving at Boston BOS: AA1583, DL5611, AA1582, 9K3341

All flights connecting Baltimore BWI to Boston BOS.