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

Washington → Houston via Dallas: arrives on time 18%

  1. 17:20 DCA → 19:30 DAL
    WN 1403 · Southwest · 3h 10m · 27% on time, 4.0% cancelled
  2. 1h 00m layover in Dallas (DAL) · 45 min minimum on one ticket
  3. 20:30 DAL → 21:40 HOU
    WN 57 · Southwest · 1h 10m · 72% on time, 2.8% cancelled

Total trip 5h 20m, scheduled departure to arrival (Houston is 1 h behind Washington). Times are local. Both flew on 24 of the last 56 days.

Makes the connection27%The first flight arrived more than 15 minutes late on 73% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time18%First flight not cancelled (4.0% are) × connection made (27%) × second flight not cancelled (2.8% are) and within 15 minutes (72%).
Total trip5h 20mDCA 17:20 to HOU 21:40, 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.