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

Boston → Dulles via Chicago: arrives on time 36%

  1. 15:13 BOS → 17:05 ORD
    UA 1475 · United · 2h 52m · 65% on time, 0.0% cancelled
  2. 1h 07m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 18:12 ORD → 21:22 IAD
    UA 2202 · United · 2h 10m · 57% on time, 3.2% cancelled

Total trip 6h 09m, scheduled departure to arrival. Times are local. Both flew on 37 of the last 56 days.

Makes the connection65%The first flight arrived more than 22 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time36%First flight not cancelled (0.0% are) × connection made (65%) × second flight not cancelled (3.2% are) and within 15 minutes (57%).
Total trip6h 09mBOS 15:13 to IAD 21:22, 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.