WN3129Southwest Airlines · BWI → SAN
live · 3m ago
Route confirmed Southwest Airlines

WN3129 BaltimoreBWI · 21:35 San DiegoSAN · 00:15

WN3129 by Southwest Airlines flies from Baltimore (BWI) to San Diego (SAN).

Right nowNext departure tomorrow Operates daily
06:25

scheduled from BWI

Typical gate push+40 minmedian posted departure
Typical arrival+5 minmedian over 4 operations
Wins back in air~35 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
10-31
+52 gate · +16 arrival
10-30
+52 gate · +16 arrival
10-29
+17 gate · −7 arrival
10-26
+28 gate · −6 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
BWIBaltimoreOn-time likelyBWI delay board →
SANSan DiegoOn-time likelySAN delay board →
BWI→SANevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
52%Chance of 15+ min delay
1.1%Chance of cancellation
+18 minTypical airport delay in this weather

Conditions at BWI and SAN 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 on this route

Forecast

Baltimore to San Diego with Southwest Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure leaves 60+ min late
13%1.0× usual

Forecast weather: 94% chance of rain at San Diego

No cancellation outlook here: this airport's board does not publish cancellations reliably.

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 3 departures a day on this route with this airline. · 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 Baltimore to San Diego flights today

same route · Southwest Airlines
WN287departs 06:10
WN1772departs 06:20
WN2794departs 07:15
WN702departs 08:15
WN2407departs 09:45
WN1784departs 10:10

If WN3129 is cancelled, these are the other Southwest Airlines nonstop flights from Baltimore to San Diego on the same day, with scheduled departure times in BWI 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 WN3129 actually runs

Pro Flight Search has tracked every published board update for WN3129 across the BWI and SAN boards: schedule changes, gate pushes and actual clocks. Usually lands ~6 min early. Based on 2 confirmed landings · 2/2 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 WN3129 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
10-31BWI 21:35 22:27 (+52)SAN 00:15 00:31 (+16)
10-30BWI 21:35 22:27 (+52)SAN 00:15 00:31 (+16)
10-29BWI 21:35 21:52 (+17)SAN 00:15 00:08 (−7)
10-26BWI 21:35 22:03 (+28)SAN 00:15 00:09 (−6)

Aircraft

Recent tails: N8574Z, N8738K, N8306H.

Board clocks recorded as BWI and SAN 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: WN3129 Baltimore to San Diego on-time performance, measured from the BWI and SAN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3129
How we measure this →