WN3520Southwest Airlines · PIT → MDW
live · 29m ago
Route confirmed Southwest Airlines

WN3520 PittsburghPIT · 13:40 ChicagoMDW · 14:10

WN3520 by Southwest Airlines flies from Pittsburgh (PIT) to Chicago (MDW).

Right nowNext departure tomorrow Operates daily
18:15

scheduled from PIT

Typical gate push+27 minmedian posted departure
Typical arrival+4 minmedian over 6 operations
Wins back in air~23 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 6 operations · gate push → arrival
0+30+60+90 min
10-19
+31 gate · +10 arrival
10-17
+56 gate · +34 arrival
10-16
+13 gate · −7 arrival
10-15
+22 gate · +4 arrival
10-12
+27 gate · +0 arrival
10-10
−3 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 +4 min · 0 cancelled · 6 operations tracked

The route today

live boards
PITPittsburghOn-time likelyPIT delay board →
MDWChicagoOn-time likelyMDW delay board →
PIT→MDWevery 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
1.3%Chance of cancellation
+9 minAvg hub delay right now

Conditions at PIT and MDW 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 Pittsburgh to Chicago flights today

same route · Southwest Airlines
WN3519departs 08:10
WN2376departs 13:50
WN4221departs 15:35
WN1742departs 18:50
WN3521departs 19:45

If WN3520 is cancelled, these are the other Southwest Airlines nonstop flights from Pittsburgh to Chicago on the same day, with scheduled departure times in PIT 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 PIT and MDW boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 6 confirmed landings · 5/6 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
10-19PIT 13:40 14:11 (+31)MDW 14:10 14:20 (+10)
10-17PIT 17:20 18:16 (+56)MDW 17:50 18:24 (+34)
10-16PIT 13:40 13:53 (+13)MDW 14:10 14:03 (−7)
10-15PIT 13:40 14:02 (+22)MDW 14:10 14:14 (+4)
10-12PIT 13:40 14:07 (+27)MDW 14:10 (+0)
10-10PIT MDW 17:50 17:47 (−3)

Aircraft

Recent tails: N8980Q, N8871Q, N8519R, N9012J.

Board clocks recorded as PIT and MDW 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 Pittsburgh to Chicago on-time performance, measured from the PIT and MDW airport boards.

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