MDW → BUFChicago to Buffalo

live

Direct flights from Chicago (MDW) to Buffalo (BUF): 7 nonstop departures observed each week across 1 airline. 82% of the last 22 operated flights arrived within 15 minutes of schedule. The median arrival is 3 minutes early. No cancellations were recorded across the 22 tracked flights. The nonstop covers 752 km, an estimated 1 hour 28 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and Buffalo. Updated 18 August 2026 at 15:03 UTC.

MDW Chicago busy · +23
BUF Buffalo smooth · +0
752 km · ~1h 28m est.
dep bank 08:05–18:207x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
82% on time

of the last 22 operated MDW → BUF flights arrived within 15 minutes

Median arrival delay is −3 min. 0 of 22 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Search live fares for this route →
Median arrival−3 minacross the last 22 operated legs
Flight time~1h 28mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 22

Current nonstop fares

MDW → BUF · one way · economy · 1 adult

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TodayChecking…Direct airline fares
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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 WN1156 varies daily · WN4217 12:45 Mo Tu We Th Fr · WN758 13:55 Su · WN4241 15:15 Sa

History

operated legs · board outcomes
08-18NTW862dep +0 → arr+0
08-18WN1156dep +41 → arr−39
08-17WN1156dep +23 → arr−17
08-17WN1502dep +17 → arr−16
08-17WN4217dep +68 → arr+40
08-16WN1156dep +20 → arr−10
08-16WN3688dep +21 → arr−11
08-16WN758dep +16 → arr−2
08-15WN252dep +10 → arr−19
08-15WN4241dep +35 → arr+11
08-14WN1156dep +69 → arr+35
08-14WN1502dep +154 → arr+126
08-14WN4217dep +19 → arr−8
08-13WN1156dep +17 → arr−16
08-13WN1502dep +19 → arr−7
08-13WN4217dep +7 → arr−16
08-12WN1156dep +18 → arr−13
08-12WN3641dep +29 → arr−3
08-12WN4217dep +34 → arr+10
08-111I743dep +37 → arr+41
08-11WN1156dep +41 → arr+3
08-11WN3641dep +42 → arr+9

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 +23 min busy 🌤 mostly cloudy · WSW 10 kt Full MDW delay board →
BUFBuffalo +0 min smooth 🌤 few clouds · WSW 10 kt Full BUF delay board →

Weather lens

Current conditions put the pressure at MDW and BUF: 52% odds of a 15+ minute delay and around +16 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Chicago to Buffalo route actually runs

Pro Flight Search tracks every published board update for nonstop MDW to BUF flights: 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. Fares link straight to the operating airline with no markups.

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 Buffalo (BUF) route reliability, measured from operated flights on official airport boards.

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

MDW to BUF questions

Is MDW–BUF running on time right now?

Smooth skies ahead. The departure side at MDW is the weaker end, route health score 85/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on MDW–BUF?

Operators schedule evening departures around 18:00 from MDW. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BUF delay card to confirm conditions when you'd arrive.

How long is the flight from MDW to BUF?

Great-circle distance is 752 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 83–94 min gate-to-gate on this route.

How often does MDW–BUF 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.