Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Seattle via Chicago: arrives on time 86%
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08:15 BOS → 10:12 ORDUA 1834 · United · 2h 57m · 92% on time, 0.0% cancelled
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3h 18m layover in Chicago (ORD) · 45 min minimum on one ticket
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13:30 ORD → 16:09 SEAUA 1660 · United · 4h 39m · 87% on time, 1.1% cancelled
Total trip 10h 54m, scheduled departure to arrival (Seattle is 3 h behind Boston). Times are local. Both flew on 53 of the last 56 days.
Makes the connection100%The first flight arrived more than 153 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 18m layover.
Arrives on time86%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (1.1% are) and within 15 minutes (87%).
Total trip10h 54mBOS 08:15 to SEA 16:09, 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.