WN1251Southwest Airlines · BWI → HOU
live · 13m ago
Route confirmed Southwest Airlines

WN1251 BaltimoreBWI · 10:10 HoustonHOU · 12:15

WN1251 by Southwest Airlines flies from Baltimore (BWI) to Houston (HOU).

Right nowNext departure today Operates daily
10:10

scheduled from BWI

Typical gate push+19 minmedian posted departure
Typical arrival+0 minmedian over 4 operations
Wins back in air~19 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
09-15
+17 gate · +0 arrival
09-14
+17 gate · +0 arrival
09-11
+57 gate · +46 arrival
09-10
+19 gate · +0 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
BWIBaltimoreModerate riskBWI delay board →
HOUHoustonOn-time likelyHOU delay board →
BWI→HOUevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
0.7%Chance of cancellation
+6 minAvg hub delay right now

Conditions at BWI and HOU are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Baltimore to Houston flights today

same route · Southwest Airlines
WN481departs 07:10
WN951departs 07:45
WN115departs 08:00
WN952departs 11:00
WN954departs 14:00
WN4640departs 16:55

If WN1251 is cancelled, these are the other Southwest Airlines nonstop flights from Baltimore to Houston on the same day, with scheduled departure times in BWI local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN1251 actually runs

Pro Flight Search has tracked every published board update for WN1251 across the BWI and HOU boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 3/4 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how WN1251 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
09-15BWI 10:10 10:27 (+17)HOU 12:15 (+0)
09-14BWI 10:10 10:27 (+17)HOU 12:15 (+0)
09-11BWI 10:10 11:07 (+57)HOU 12:15 13:01 (+46)
09-10BWI 10:10 10:29 (+19)HOU 12:15 (+0)

Aircraft

Recent tails: N8677A, N8321D, N8694E.

Board clocks recorded as BWI and HOU published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — WN1251 Baltimore to Houston on-time performance, measured from the BWI and HOU airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1251
How we measure this →