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

Seattle → Boston via Chicago: arrives on time 50%

  1. 05:30 SEA → 11:25 MDW
    WN 2810 · Southwest · 3h 55m · 100% on time, 0.0% cancelled
  2. 1h 05m layover in Chicago (MDW) · 45 min minimum on one ticket
  3. 12:30 MDW → 15:50 BOS
    WN 4716 · Southwest · 2h 20m · 50% on time, 0.0% cancelled

Total trip 7h 20m, scheduled departure to arrival (Boston is 3 h ahead of Seattle). Times are local. Both flew on 24 of the last 56 days.

Makes the connection100%The first flight arrived more than 20 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time50%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (0.0% are) and within 15 minutes (50%).
Total trip7h 20mSEA 05:30 to BOS 15:50, layover included

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