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

St Louis → Dulles via Chicago: arrives on time 72%

  1. 10:20 STL → 11:52 ORD
    UA 4517 · United, flown by GoJet · 1h 32m · 90% on time, 1.4% cancelled
  2. 2h 40m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 14:32 ORD → 17:30 IAD
    UA 587 · United · 2h 00m · 73% on time, 0.4% cancelled

Total trip 6h 12m, scheduled departure to arrival (Dulles is 1 h ahead of St Louis). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.

Makes the connection100%The first flight arrived more than 115 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 2h 40m layover.
Arrives on time72%First flight not cancelled (1.4% are) × connection made (100%) × second flight not cancelled (0.4% are) and within 15 minutes (73%).
Total trip6h 12mSTL 10:20 to IAD 17:30, 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.