Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Chicago → Boston via Washington: arrives on time 80%
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06:00 ORD → 08:54 DCAUA 1077 · United · 1h 54m · 92% on time, 1.6% cancelled
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2h 53m layover in Washington (DCA) · 90 min minimum on separate tickets
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11:47 DCA → 13:28 BOSDL 5693 · Delta, flown by Republic · 1h 43m · 84% on time, 2.8% cancelled
Total trip 6h 30m, scheduled departure to arrival (Boston is 1 h ahead of Chicago). Times are local. Both flew on 51 of the last 56 days.
Makes the connection99%The first flight arrived more than 83 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 2h 53m layover.
Arrives on time80%First flight not cancelled (1.6% are) × connection made (99%) × second flight not cancelled (2.8% are) and within 15 minutes (84%).
Total trip6h 30mORD 06:00 to BOS 13:28, 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.