MDW → SDFChicago to Louisville

live

Direct flights from Chicago (MDW) to Louisville (SDF): 20 nonstop departures observed each week across 1 airline. 86% of the last 22 tracked flights arrived within 15 minutes of schedule. The median arrival is 13 minutes early. 1 of the 23 tracked flights was cancelled. 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 15 November 2026 at 15:25 UTC.

Today, MDW → SDF

Sun 15 Nov · local times
  1. 07:45 WN2439Southwest Left 07:55 +10 Landed 09:51 −14
  2. 12:50 WN726Southwest Airlines On scheduleGate B1 ·
  3. 18:40 WN3028Southwest Airlines On scheduleGate B23 ·

Checked MDW board 09:25 · SDF board 10:03

MDW Chicago smooth · +8
SDF Louisville smooth · +0
437 km · ~1h 04m est.
dep bank 07:45–18:4020x weekly
Runs reliable · 1 airline · 20x weekly · nonstop
86% on time

of the last 22 tracked MDW → SDF flights arrived within 15 minutes

Median arrival delay is −13 min. 1 of 23 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−13 minacross the last 21 arrivals
Flight time~1h 04mestimated from route distance
Weekly departures20x1 direct airline on the leg
Cancelled4.3%recent route rate · 1 of 23

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 AirlinesWN85% on time

Flights WN2439 07:45 Mo Th Fr Su · WN389 07:55 Sa · WN3854 08:15 Tu We · WN726 12:50 Mo Th Fr Sa Su

History

operated legs · board outcomes
11-15WN2439dep +10 → arr−14
11-14WN389dep +14 → arr+164
11-14WN726dep +119 → arr+97
11-131I855dep +5 → arr+10
11-13WN2439dep −6 → arr−24
11-13WN3028cancelledCNX
11-13WN726dep +8 → arr−5
11-12WN2439dep +7 → arr−11
11-12WN3028dep +10 → arr−11
11-12WN726dep +4 → arr−13
11-12WUP690arrived+0
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

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 +8 min smooth 🌤 mostly cloudy · NW 3 kt Full MDW delay board →
SDFLouisville +0 min smooth 🌤 mostly cloudy · N 0 kt Full SDF delay board →

Weather lens

Conditions are tightest at MDW and SDF: a 38% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +6 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 94/100. 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 20 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.