Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Seattle → Columbus via Chicago: arrives on time 23%

  1. 11:45 SEA → 18:00 MDW
    WN 3081 · Southwest · 4h 15m · 57% on time, 2.0% cancelled
  2. 52m layover in Chicago (MDW) · 45 min minimum on one ticket
  3. 18:52 MDW → 21:02 CMH
    WN 4043 · Southwest · 1h 15m · 60% on time, 4.0% cancelled

Total trip 6h 22m, scheduled departure to arrival (Columbus is 3 h ahead of Seattle). Times are local. Both flew on 40 of the last 56 days.

Makes the connection41%The first flight arrived more than 7 minutes late on 59% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time23%First flight not cancelled (2.0% are) × connection made (41%) × second flight not cancelled (4.0% are) and within 15 minutes (60%).
Total trip6h 22mSEA 11:45 to CMH 21:02, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.