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

Washington → Des Moines via Chicago: arrives on time 33%

  1. 19:00 DCA → 20:10 MDW
    WN 1447 · Southwest · 2h 10m · 38% on time, 7.7% cancelled
  2. 1h 55m layover in Chicago (MDW) · 45 min minimum on one ticket
  3. 22:05 MDW → 23:35 DSM
    WN 4279 · Southwest · 1h 30m · 50% on time, 0.0% cancelled

Total trip 5h 35m, scheduled departure to arrival (Des Moines is 1 h behind Washington). Times are local. Both flew on 12 of the last 56 days, too few to list among the best connections.

Makes the connection71%The first flight arrived more than 70 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 55m layover.
Arrives on time33%First flight not cancelled (7.7% are) × connection made (71%) × second flight not cancelled (0.0% are) and within 15 minutes (50%).
Total trip5h 35mDCA 19:00 to DSM 23:35, 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.