Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Grand Rapids → Baltimore via Chicago: arrives on time 39%
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19:54 GRR → 20:37 ORDAA 4729 · American, flown by Republic · 1h 43m · 67% on time, 11.1% cancelled
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48m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:25 ORD → 00:33 BWI +1 dayAA 4663 · American, flown by Republic · 2h 08m · 79% on time, 4.5% cancelled
Total trip 4h 39m, scheduled departure to arrival. Times are local. Both flew on 30 of the last 56 days.
Makes the connection58%The first flight arrived more than 3 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 48m layover.
Arrives on time39%First flight not cancelled (11.1% are) × connection made (58%) × second flight not cancelled (4.5% are) and within 15 minutes (79%).
Total trip4h 39mGRR 19:54 to BWI 00:33, 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.