Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
St Louis → Dulles via Chicago: arrives on time 46%
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19:05 STL → 20:39 ORDUA 4165 · United, flown by GoJet · 1h 34m · 70% on time, 5.7% cancelled
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1h 01m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:40 ORD → 00:45 IAD +1 dayUA 2766 · United · 2h 05m · 69% on time, 0.0% cancelled
Total trip 4h 40m, scheduled departure to arrival (Dulles is 1 h ahead of St Louis). Times are local. Both flew on 34 of the last 56 days.
Makes the connection70%The first flight arrived more than 16 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time46%First flight not cancelled (5.7% are) × connection made (70%) × second flight not cancelled (0.0% are) and within 15 minutes (69%).
Total trip4h 40mSTL 19:05 to IAD 00:45, 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.