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

Houston → Dulles via Huntsville: arrives on time 60%

  1. 15:05 IAH → 17:08 HSV
    UA 4946 · United, flown by CommuteAir · 2h 03m · 77% on time, 0.6% cancelled
  2. 52m layover in Huntsville (HSV) · 45 min minimum on one ticket
  3. 18:00 HSV → 21:06 IAD
    UA 4351 · United, flown by CommuteAir · 2h 06m · 85% on time, 1.4% cancelled

Total trip 5h 01m, scheduled departure to arrival (Dulles is 1 h ahead of Houston). Times are local. Both flew on 54 of the last 56 days.

Makes the connection72%The first flight arrived more than 7 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time60%First flight not cancelled (0.6% are) × connection made (72%) × second flight not cancelled (1.4% are) and within 15 minutes (85%).
Total trip5h 01mIAH 15:05 to IAD 21:06, 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.