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

Dulles → Boston via Newark: arrives on time 82%

  1. 06:33 IAD → 07:52 EWR
    UA 2147 · United · 1h 19m · 97% on time, 2.7% cancelled
  2. 1h 38m layover in Newark (EWR) · 90 min minimum on separate tickets
  3. 09:30 EWR → 10:55 BOS
    DL 5764 · Delta, flown by Republic · 1h 25m · 95% on time, 2.5% cancelled

Total trip 4h 22m, scheduled departure to arrival. Times are local. Both flew on 32 of the last 56 days.

Makes the connection91%The first flight arrived more than 8 minutes late on 9% of the days it flew: too late for the 90-minute minimum connection on a 1h 38m layover.
Arrives on time82%First flight not cancelled (2.7% are) × connection made (91%) × second flight not cancelled (2.5% are) and within 15 minutes (95%).
Total trip4h 22mIAD 06:33 to BOS 10:55, 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.