WN852Southwest Airlines · HOU → BWI
live · 9m ago
Route confirmed Southwest Airlines

WN852 HoustonHOU · 08:05 BaltimoreBWI · 12:05

WN852 by Southwest Airlines flies from Houston (HOU) to Baltimore (BWI).

Right nowNext departure tomorrow Operates daily
05:20

scheduled from HOU

Typical gate push−2 minmedian posted departure
Typical arrival−20 minmedian over 4 operations
Wins back in air~18 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
11-05
−5 gate · −23 arrival
10-30
+0 gate · −17 arrival
10-29
−5 gate · −23 arrival
10-26
+13 gate · +1 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
HOUHoustonOn-time likelyHOU delay board →
BWIBaltimoreOn-time likelyBWI delay board →
HOU→BWIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
0.4%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at HOU and BWI are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →

Tomorrow at Houston

Forecast

Fri 6 Nov, local date

High27°Clikely 25°C to 29°C
Low18°Clikely 15°C to 19°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Baltimore

Forecast

Sat 7 Nov, local date

High15°Clikely 13°C to 18°C
Low8°Clikely 5°C to 11°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 Houston to Baltimore flights today

same route · Southwest Airlines
WN4362departs 05:25
WN2966departs 05:50
WN1966departs 05:55
WN2871departs 08:45
WN5003departs 10:00
WN5012departs 10:05

If WN852 is cancelled, these are the other Southwest Airlines nonstop flights from Houston to Baltimore on the same day, with scheduled departure times in HOU local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN852 actually runs

Pro Flight Search has tracked every published board update for WN852 across the HOU and BWI boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 4 confirmed landings · 4/4 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 WN852 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
11-05HOU 08:05 08:00 (−5)BWI 12:05 11:42 (−23)
10-30HOU 08:05 (+0)BWI 12:05 11:48 (−17)
10-29HOU 08:05 08:00 (−5)BWI 12:05 11:42 (−23)
10-26HOU 08:05 08:18 (+13)BWI 12:05 12:06 (+1)

Aircraft

Recent tails: N8664J, N8508W, N8692F, N9018H.

Board clocks recorded as HOU and BWI published them.

Planning around WN852? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: WN852 Houston to Baltimore on-time performance, measured from the HOU and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/WN852
How we measure this →