MDW → SFOChicago to San Francisco

live

Direct flights from Chicago (MDW) to San Francisco (SFO): 7 nonstop departures observed each week across 1 airline. The median arrival is 7 minutes late. No cancellations were recorded across the 3 tracked flights. The nonstop covers 2,977 km, an estimated 4 hours 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Chicago and San Francisco. Updated 9 September 2026 at 22:38 UTC.

MDW Chicago smooth · +14
SFO San Francisco smooth · +0
2,977 km · ~4h 19m est.
dep bank 10:15–21:107x weekly
Running clean · 1 airline · 7x weekly · nonstop
91 / 100

route health from live MDW and SFO delay boards

Median arrival delay is +7 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+7 minacross the last 3 operated legs
Flight time~4h 19mestimated from route distance
Weekly departures7x1 direct airline on the leg

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 AirlinesWN

Flights WN3881 10:15 Mo Th Fr Sa · WN4843 10:25 Tu We Sa · WN4984 varies Tu We Su · WN454 21:10 Mo Th Fr

History

operated legs · board outcomes
09-09WN4843dep +14 → arr+38
09-08WN4843dep +6 → arr+7
09-08WN4984dep +15 → arr+2

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 +14 min smooth Full MDW delay board →
SFOSan Francisco +0 min smooth Full SFO delay board →

Weather lens

Current conditions put the pressure at SFO: 58% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Chicago to San Francisco route actually runs

Pro Flight Search records official board updates for nonstop MDW to SFO 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 San Francisco (SFO) route reliability, measured from operated flights on official airport boards.

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

MDW to SFO questions

Is MDW–SFO running on time right now?

Smooth skies ahead. The departure side at MDW is the weaker end, route health score 91/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on MDW–SFO?

Operators schedule morning departures around 10:15 and evening departures around 21:10 from MDW. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SFO delay card to confirm conditions when you'd arrive.

How long is the flight from MDW to SFO?

Great-circle distance is 2,977 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 240–285 min gate-to-gate on this route.

How often does MDW–SFO fly?

Southwest Airlines runs the route with about 13 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.