WN3520Southwest Airlines · SDF → DAL
live · 3h ago
Route confirmed Southwest Airlines

WN3520 LouisvilleSDF · 07:55 DallasDAL · 08:55

WN3520 by Southwest Airlines flies from Louisville (SDF) to Dallas (DAL).

Right nowNext departure today Operates Mon Tue Wed Thu Fri Sun
07:55

scheduled from SDF

Typical gate push+11 minmedian posted departure
Typical arrival−14 minmedian over 7 operations
Wins back in air~25 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
09-15
+11 gate · −11 arrival
09-14
+11 gate · −11 arrival
09-11
+28 gate · +12 arrival
09-10
+2 gate · −20 arrival
09-07
+11 gate · −14 arrival
09-04
+10 gate · −15 arrival
09-03
+8 gate · −16 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −14 min · 0 cancelled · 7 operations tracked

The route today

live boards
SDFLouisvilleOn-time likelySDF delay board →
DALDallasOn-time likelyDAL delay board →
SDF→DALevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
40%Chance of 15+ min delay
2.6%Chance of cancellation
+8 minAvg hub delay right now

Conditions at SDF and DAL 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 Louisville to Dallas flights today

same route · Southwest Airlines
WN25departs 10:50
WN4625departs 11:05

If WN3520 is cancelled, these are the other Southwest Airlines nonstop flights from Louisville to Dallas on the same day, with scheduled departure times in SDF local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How WN3520 actually runs

Pro Flight Search has tracked every published board update for WN3520 across the SDF and DAL boards: schedule changes, gate pushes and actual clocks. Usually lands ~11 min early. Based on 7 confirmed landings · 7/7 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 WN3520 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
09-15SDF 07:55 08:06 (+11)DAL 08:55 08:44 (−11)
09-14SDF 07:55 08:06 (+11)DAL 08:55 08:44 (−11)
09-11SDF 07:55 08:23 (+28)DAL 08:55 09:07 (+12)
09-10SDF 07:55 07:57 (+2)DAL 08:55 08:35 (−20)
09-07SDF 07:55 08:06 (+11)DAL 08:55 08:41 (−14)
09-04SDF 07:55 08:05 (+10)DAL 08:55 08:40 (−15)
09-03SDF 07:55 08:03 (+8)DAL 08:55 08:39 (−16)

Aircraft

Recent tails: N8689C, N8705Q, N8607M, N8969S.

Board clocks recorded as SDF and DAL 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 — WN3520 Louisville to Dallas on-time performance, measured from the SDF and DAL airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3520
How we measure this →