Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
New York → Miami via St Louis: arrives on time 85%
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06:30 LGA → 08:08 STLDL 4939 · Delta, flown by Endeavor · 2h 38m · 89% on time, 2.9% cancelled
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2h 52m layover in St Louis (STL) · 90 min minimum on separate tickets
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11:00 STL → 14:46 MIAAA 3954 · American, flown by Envoy · 2h 46m · 90% on time, 0.0% cancelled
Total trip 8h 16m, scheduled departure to arrival. Times are local. Both flew on 22 of the last 56 days.
Makes the connection97%The first flight arrived more than 82 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 52m layover.
Arrives on time85%First flight not cancelled (2.9% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip8h 16mLGA 06:30 to MIA 14:46, 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.