WN3140Southwest Airlines · DEN → MDW
live · 2m ago
Route confirmed Southwest Airlines

WN3140 DenverDEN · 07:10 ChicagoMDW · 10:10

WN3140 by Southwest Airlines flies from Denver (DEN) to Chicago (MDW).

Same number through DEN → STL → BWI → MDW

Right nowNext departure today Operates daily
12:20

scheduled from DEN

Typical gate push+17 minmedian posted departure

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
11-06
+17 gate
10-30
+17 gate
10-29
−6 gate
10-26
+17 gate
10-23
−2 gate

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

0 cancelled · 5 operations tracked

The route today

live boards
DENDenverOn-time likelyDEN delay board →
MDWChicagoOn-time likelyMDW delay board →
DEN→MDWevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
42%Chance of 15+ min delay
1.1%Chance of cancellation
+10 minTypical airport delay in this weather

Driven mainly by MDW (Chicago), currently flying MVFR (marginal visual). 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 →

Tomorrow at Denver

Forecast

Sat 7 Nov, local date

High17°Clikely 14°C to 19°C
Low2°Clikely 0°C to 4°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at St Louis

Forecast

Sat 7 Nov, local date

High10°Clikely 8°C to 12°C
Low2°Clikely 0°C to 5°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 Denver to Chicago flights today

same route · Southwest Airlines
WN1796departs 05:50
WN1159departs 06:20
WN4346departs 06:20
WN1839departs 06:30
WN301departs 06:35
WN3008departs 07:45

If WN3140 is cancelled, these are the other Southwest Airlines nonstop flights from Denver to Chicago on the same day, with scheduled departure times in DEN 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 WN3140 actually runs

Pro Flight Search has tracked every published board update for WN3140 across the DEN and MDW boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min late. Based on 5 confirmed landings · 4/5 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 WN3140 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
11-06DEN 07:10 07:27 (+17)MDW
10-30DEN 07:10 07:27 (+17)MDW
10-29DEN 07:10 07:04 (−6)MDW
10-26DEN 07:10 07:27 (+17)MDW
10-23DEN 07:10 07:08 (−2)MDW

Aircraft

Recent tails: N470WN, N936WN, N908WN, N957WN.

Board clocks recorded as DEN and MDW published them.

Planning around WN3140? 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: WN3140 Denver to Chicago on-time performance, measured from the DEN and MDW airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3140
How we measure this →