SEA → MDWSeattle to Chicago

live

Direct flights from Seattle (SEA) to Chicago (MDW): 7 nonstop departures observed each week across 1 airline. 56% of the last 9 operated flights arrived within 15 minutes of schedule. The median arrival is 6 minutes late. No cancellations were recorded across the 9 tracked flights. The nonstop covers 2,782 km, an estimated 4 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Chicago. Updated 16 October 2026 at 09:00 UTC.

Today, SEA → MDW

Fri 16 Oct · local times
  1. 00:10 WN3759Southwest Airlines Departed MDW 06:05In the air · scheduled landing

Checked SEA board 02:00 · MDW board 03:10

SEA Seattle smooth · +9
MDW Chicago heavy · +30
2,782 km · ~4h 04m est.
dep bank 00:10–09:107x weekly
Runs rough · 1 airline · 7x weekly · nonstop
56% on time

of the last 9 operated SEA → MDW flights arrived within 15 minutes

Median arrival delay is +6 min. 0 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+6 minacross the last 9 operated legs
Flight time~4h 04mestimated 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 AirlinesWN56% on time

Flights WN3759 00:10 daily · WN3796 05:30 Su · WN297 09:10 Sa

History

operated legs · board outcomes
10-15WN3759arrived+6
10-14WN3759arrived−13
10-13WN3759arrived+52
10-12WN3759arrived−3
10-11WN3759arrived−11
10-11WN3796arrived−3
10-10WN297arrived+44
10-10WN3759arrived+91
10-09WN3759arrived+20

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
SEASeattle +9 min smooth 🌤 clear · N 0 kt Full SEA delay board →
MDWChicago +30 min heavy ⛅ overcast · WNW 16 kt Full MDW delay board →

Weather lens

Current conditions put the pressure at MDW: 40% odds of a 15+ minute delay and around +12 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Chicago route actually runs

Pro Flight Search records official board updates for nonstop SEA to MDW 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 — Seattle (SEA) to Chicago (MDW) route reliability, measured from operated flights on official airport boards.

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

SEA to MDW questions

Is SEA–MDW running on time right now?

Mostly on schedule. The arrival side at MDW is the weaker end, route health score 73/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–MDW?

Operators schedule morning departures around 00:10 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the MDW delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to MDW?

Great-circle distance is 2,782 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 226–268 min gate-to-gate on this route.

How often does SEA–MDW fly?

Southwest Airlines runs the route with about 9 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.