Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → St Louis via Dulles: arrives on time 51%
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14:51 LGA → 16:35 IADUA 3688 · United, flown by Republic · 1h 44m · 63% on time, 5.1% cancelled
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1h 20m layover in Dulles (IAD) · 45 min minimum on one ticket
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17:55 IAD → 19:26 STLUA 4527 · United, flown by GoJet · 2h 31m · 73% on time, 1.1% cancelled
Total trip 5h 35m, scheduled departure to arrival (St Louis is 1 h behind New York). Times are local. Both flew on 55 of the last 56 days.
Makes the connection74%The first flight arrived more than 35 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time51%First flight not cancelled (5.1% are) × connection made (74%) × second flight not cancelled (1.1% are) and within 15 minutes (73%).
Total trip5h 35mLGA 14:51 to STL 19:26, 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.