Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Boston via Columbus: arrives on time 81%
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07:00 ORD → 09:33 CMHAA 4953 · American, flown by SkyWest · 1h 34m · 90% on time, 1.4% cancelled
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1h 27m layover in Columbus (CMH) · 45 min minimum on one ticket
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11:00 CMH → 13:05 BOSAA 4399 · American, flown by Republic · 2h 05m · 90% on time, 1.6% cancelled
Total trip 5h 05m, scheduled departure to arrival (Boston is 1 h ahead of Chicago). Times are local. Both flew on 48 of the last 56 days.
Makes the connection93%The first flight arrived more than 42 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 27m layover.
Arrives on time81%First flight not cancelled (1.4% are) × connection made (93%) × second flight not cancelled (1.6% are) and within 15 minutes (90%).
Total trip5h 05mORD 07:00 to BOS 13:05, 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.