Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Boston → Portland via San Francisco: arrives on time 52%
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13:52 BOS → 17:37 SFOUA 1367 · United · 6h 44m · 84% on time, 1.2% cancelled
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3h 13m layover in San Francisco (SFO) · 45 min minimum on one ticket
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20:50 SFO → 22:48 PDXUA 2413 · United · 1h 58m · 56% on time, 0.0% cancelled
Total trip 11h 56m, scheduled departure to arrival (Portland is 3 h behind Boston). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection95%The first flight arrived more than 148 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 3h 13m layover.
Arrives on time52%First flight not cancelled (1.2% are) × connection made (95%) × second flight not cancelled (0.0% are) and within 15 minutes (56%).
Total trip11h 56mBOS 13:52 to PDX 22:48, 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.