WN1921Southwest Airlines · SLC → PHX
live · 15m ago
Route confirmed Southwest Airlines

WN1921 Salt Lake CitySLC · 21:25 PhoenixPHX · 22:10

WN1921 by Southwest Airlines flies from Salt Lake City (SLC) to Phoenix (PHX).

Right nowNext departure today Operates daily
08:25

scheduled from SLC

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
PHXPhoenixOn-time likelyPHX delay board →
SLC→PHXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
31%Chance of 15+ min delay
0.7%Chance of cancellation
-1 minTypical airport delay in this weather

Conditions at SLC and PHX 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 →

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 Salt Lake City to Phoenix flights today

same route · Southwest Airlines
WN3978departs 05:05
WN2540departs 06:50
WN228departs 08:00
WN3309departs 08:00
WN528departs 08:55
WN2810departs 11:10

If WN1921 is cancelled, these are the other Southwest Airlines nonstop flights from Salt Lake City to Phoenix on the same day, with scheduled departure times in SLC 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 WN1921 actually runs

Pro Flight Search has tracked every published board update for WN1921 across the SLC and PHX boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: left a little late (~11 min) but landed about 5 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how WN1921 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
10-30SLC 21:25 21:52 (+27)PHX 22:10 22:06 (−4)
10-29SLC 21:25 21:47 (+22)PHX 22:10 22:03 (−7)

Aircraft

Recent tails: N932WN, N242WN.

Board clocks recorded as SLC and PHX 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: WN1921 Salt Lake City to Phoenix on-time performance, measured from the SLC and PHX airport boards.

Canonical URL
https://proflightsearch.com/flight/WN1921
How we measure this →