WN1231Southwest Airlines · SFO → BZN
live · 3m ago
Route confirmed Southwest Airlines

WN1231 San FranciscoSFO · 16:40 BozemanBZN · 18:25

WN1231 by Southwest Airlines flies from San Francisco (SFO) to Bozeman (BZN) for the Tue, Sep 8 departure.

Same number through SFO → LAS → BZN

Right nowOn Time · gate D4
16:40

departs SFO · on schedule

Typical gate push+11 minmedian posted departure

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
BZNBozemanOn-time likelyBZN delay board →
SFO→BZNevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
58%Chance of 15+ min delay
1.3%Chance of cancellation
+23 minAvg hub delay right now

Conditions at SFO and BZN 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 San Francisco to Bozeman flights today

same route · Southwest Airlines
WN4524departs 05:00
WN1138departs 05:10
WN8510departs 09:00
WN252departs 10:05
WN128departs 11:05
WN144departs 11:05

If WN1231 is cancelled, these are the other Southwest Airlines nonstop flights from San Francisco to Bozeman on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN1231 actually runs

Pro Flight Search has tracked every published board update for WN1231 across the SFO and BZN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: departed +11 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN1231 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
09-06SFO 14:50 15:01 (+11)BZN

Board clocks recorded as SFO and BZN published them.

Planning around WN1231? 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 — WN1231 San Francisco to Bozeman on-time performance, measured from the SFO and BZN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1231
How we measure this →