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

Washington → Seattle via Atlanta: arrives on time 76%

  1. 09:00 DCA → 10:52 ATL
    DL 455 · Delta · 1h 52m · 86% on time, 2.3% cancelled
  2. 1h 43m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 12:35 ATL → 14:55 SEA
    DL 629 · Delta · 5h 20m · 82% on time, 0.5% cancelled

Total trip 8h 55m, scheduled departure to arrival (Seattle is 3 h behind Washington). Times are local. Both flew on 55 of the last 56 days.

Makes the connection95%The first flight arrived more than 58 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 43m layover.
Arrives on time76%First flight not cancelled (2.3% are) × connection made (95%) × second flight not cancelled (0.5% are) and within 15 minutes (82%).
Total trip8h 55mDCA 09:00 to SEA 14:55, 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.