Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Antonio → Boston via Denver: arrives on time 87%
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18:30 SAT → 20:00 DENWN 3568 · Southwest · 2h 30m · 53% on time, 0.0% cancelled
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3h 59m layover in Denver (DEN) · 90 min minimum on separate tickets
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23:59 DEN → 05:58 BOS +1 dayUA 2656 · United · 3h 59m · 92% on time, 1.3% cancelled
Total trip 10h 28m, scheduled departure to arrival (Boston is 1 h ahead of San Antonio). Times are local. Both flew on 55 of the last 56 days.
Makes the connection96%The first flight arrived more than 149 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 3h 59m layover.
Arrives on time87%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (1.3% are) and within 15 minutes (92%).
Total trip10h 28mSAT 18:30 to BOS 05:58, 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.