tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Boston → Dulles via Detroit: arrives on time 89%

  1. 05:30 BOS → 07:39 DTW
    DL 1019 · Delta · 2h 09m · 95% on time, 2.5% cancelled
  2. 2h 34m layover in Detroit (DTW) · 90 min minimum on separate tickets
  3. 10:13 DTW → 11:50 IAD
    UA 3500 · United, flown by Republic · 1h 37m · 93% on time, 0.0% cancelled

Total trip 6h 20m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 64 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 2h 34m layover.
Arrives on time89%First flight not cancelled (2.5% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (93%).
Total trip6h 20mBOS 05:30 to IAD 11:50, 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.