WN3277Southwest Airlines · ONT → DEN
live · 55m ago
Route confirmed Southwest Airlines

WN3277 OntarioONT · 16:40 DenverDEN · 18:00

WN3277 by Southwest Airlines flies from Ontario (ONT) to Denver (DEN) for the Sat, Oct 17 departure.

Same number through ONT → PHX → DEN

Right nowExpected · today · as of 16:07
16:40

departs ONT · on schedule

Typical gate push+104 minmedian posted departure

The route today

live boards
ONTOntarioOn-time likelyONT delay board →
DENDenverOn-time likelyDEN delay board →
ONT→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Early read, sample still building
40%Chance of 15+ min delay
0.9%Chance of cancellation
+2 minAvg hub delay right now

Conditions at ONT and DEN 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.

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 Ontario to Denver flights today

same route · Southwest Airlines
WN3274departs 05:20
WN3585departs 06:10
WN3879departs 06:10
WN3275departs 08:20
WN2475departs 09:15
WN1915departs 09:25

If WN3277 is cancelled, these are the other Southwest Airlines nonstop flights from Ontario to Denver on the same day, with scheduled departure times in ONT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3277 actually runs

Pro Flight Search has tracked every published board update for WN3277 across the ONT and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +81 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN3277 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
10-16ONT 16:15 17:59 (+104)DEN
10-15ONT 16:15 17:44 (+89)DEN

Aircraft

Recent tails: N7844A, N7874B.

Board clocks recorded as ONT and DEN published them.

Planning around WN3277? 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 — WN3277 Ontario to Denver on-time performance, measured from the ONT and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3277
How we measure this →