MDW → SDFChicago to Louisville

live

Direct flights from Chicago (MDW) to Louisville (SDF): 19 nonstop departures observed each week across 1 airline. 95% of the last 19 tracked flights arrived within 15 minutes of schedule. The median arrival is 23 minutes early. No cancellations were recorded across the 20 tracked flights. The nonstop covers 437 km, an estimated 1 hour 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and Louisville. Updated 12 November 2026 at 11:03 UTC.

Today, MDW → SDF

Thu 12 Nov · local times
  1. 07:45 WN2439Southwest On scheduleGate B12 SDF est. 09:53sched 10:05
  2. 12:50 WN726Southwest Airlines On scheduleGate B25 ·
  3. 18:40 WN3028Southwest Airlines Sched 18:40Departure not confirmed by the board ·

Checked MDW board 04:54 · SDF board 06:03

MDW Chicago busy · +15
SDF Louisville smooth · +4
437 km · ~1h 04m est.
dep bank 07:45–18:4019x weekly
Runs reliable · 1 airline · 19x weekly · nonstop
95% on time

of the last 19 tracked MDW → SDF flights arrived within 15 minutes

Median arrival delay is −23 min. 0 of 20 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−23 minacross the last 19 arrivals
Flight time~1h 04mestimated from route distance
Weekly departures19x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 20

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Southwest AirlinesWN95% on time

Flights WN2439 07:45 Mo Th Fr Su · WN3854 08:15 Tu We · WN726 12:50 Mo Th Fr Sa Su · WN349 13:20 Tu We

History

operated legs · board outcomes
11-11WN3028dep −4 → arr−3
11-11WN349dep −1 → arr−4
11-11WN3854dep −4 → arr−23
11-10WN3028dep −8 → arr−29
11-10WN349dep −9 → arr−29
11-10WN3854departed−3
11-09WN2439dep −5 → arr−33
11-09WN3028dep −3 → arr−28
11-09WN726dep +0 → arr−18
11-08WN2439dep −6 → arr−31
11-08WN3028dep +12 → arr−9
11-08WN726dep −2 → arr−21
11-07WN389dep +18 → arr−9
11-07WN726dep −3 → arr−30
11-06WN2439dep −5 → arr−26
11-06WN3028dep +46 → arr+16
11-06WN726dep −1 → arr−13
11-05WN2439dep −5 → arr−30
11-05WN3028dep −3 → arr−32
11-05WN726dep −4 → arr−17

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
MDWChicago +15 min busy 🌤 overcast · N 13 kt Full MDW delay board →
SDFLouisville +4 min smooth 🌤 overcast · WNW 9 kt Full SDF delay board →

Weather lens

Conditions are tightest at MDW and SDF: a 37% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +5 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the Chicago to Louisville route actually runs

Pro Flight Search records official board updates for nonstop MDW to SDF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · 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: Chicago (MDW) to Louisville (SDF) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/MDW-SDF
How we measure this →

MDW to SDF questions

Is MDW–SDF running on time right now?

Smooth skies ahead. The departure side at MDW is the weaker end, route health score 86/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on MDW–SDF?

Operators schedule morning departures around 07:45 and evening departures around 18:40 from MDW. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SDF delay card to confirm conditions when you'd arrive.

How long is the flight from MDW to SDF?

Great-circle distance is 437 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 61–67 min gate-to-gate on this route.

How often does MDW–SDF fly?

Southwest Airlines runs the route with about 19 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.