Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Denver → Columbus via Boston: arrives on time 84%
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23:59 DEN → 05:58 BOSUA 2656 · United · 3h 59m · 92% on time, 1.3% cancelled
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2h 11m layover in Boston (BOS) · 90 min minimum on separate tickets
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08:09 BOS → 10:30 CMH +1 dayAA 4399 · American, flown by Republic · 2h 21m · 88% on time, 1.6% cancelled
Total trip 8h 31m, scheduled departure to arrival (Columbus is 2 h ahead of Denver). Times are local. Both flew on 47 of the last 56 days.
Makes the connection98%The first flight arrived more than 41 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 2h 11m layover.
Arrives on time84%First flight not cancelled (1.3% are) × connection made (98%) × second flight not cancelled (1.6% are) and within 15 minutes (88%).
Total trip8h 31mDEN 23:59 to CMH 10:30, 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.