Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Portland via Chicago: arrives on time 58%
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15:13 BOS → 17:05 ORDUA 1475 · United · 2h 52m · 65% on time, 0.0% cancelled
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2h 50m layover in Chicago (ORD) · 45 min minimum on one ticket
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19:55 ORD → 22:30 PDXUA 2738 · United · 4h 35m · 69% on time, 0.0% cancelled
Total trip 10h 17m, scheduled departure to arrival (Portland is 3 h behind Boston). Times are local. Both flew on 36 of the last 56 days.
Makes the connection84%The first flight arrived more than 125 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 2h 50m layover.
Arrives on time58%First flight not cancelled (0.0% are) × connection made (84%) × second flight not cancelled (0.0% are) and within 15 minutes (69%).
Total trip10h 17mBOS 15:13 to PDX 22:30, 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.