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

Washington → Seattle via Atlanta: arrives on time 55%

  1. 18:25 DCA → 20:30 ATL
    DL 850 · Delta · 2h 05m · 68% on time, 2.6% cancelled
  2. 1h 05m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 21:35 ATL → 23:59 SEA
    DL 903 · Delta · 5h 24m · 79% on time, 0.7% cancelled

Total trip 8h 34m, scheduled departure to arrival (Seattle is 3 h behind Washington). Times are local. Both flew on 55 of the last 56 days.

Makes the connection72%The first flight arrived more than 20 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time55%First flight not cancelled (2.6% are) × connection made (72%) × second flight not cancelled (0.7% are) and within 15 minutes (79%).
Total trip8h 34mDCA 18:25 to SEA 23:59, 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.