Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Boston via Baltimore: arrives on time 84%
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21:10 SFO → 05:25 BWIWN 2683 · Southwest · 5h 15m · 43% on time, 0.0% cancelled
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2h 50m layover in Baltimore (BWI) · 45 min minimum on one ticket
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08:15 BWI → 09:50 BOS +1 dayWN 884 · Southwest · 1h 35m · 89% on time, 3.5% cancelled
Total trip 9h 40m, scheduled departure to arrival (Boston is 3 h ahead of San Francisco). Times are local. Both flew on 54 of the last 56 days.
Makes the connection98%The first flight arrived more than 125 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 50m layover.
Arrives on time84%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (3.5% are) and within 15 minutes (89%).
Total trip9h 40mSFO 21:10 to BOS 09:50, 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.