Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Antonio → Washington via Boston: arrives on time 38%
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13:20 SAT → 18:48 BOSDL 816 · Delta · 4h 28m · 60% on time, 1.9% cancelled
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1h 17m layover in Boston (BOS) · 45 min minimum on one ticket
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20:05 BOS → 22:03 DCADL 5666 · Delta, flown by Republic · 1h 53m · 59% on time, 7.6% cancelled
Total trip 7h 38m, scheduled departure to arrival (Washington is 1 h ahead of San Antonio). Times are local. Both flew on 54 of the last 56 days.
Makes the connection71%The first flight arrived more than 32 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 17m layover.
Arrives on time38%First flight not cancelled (1.9% are) × connection made (71%) × second flight not cancelled (7.6% are) and within 15 minutes (59%).
Total trip7h 38mSAT 13:20 to DCA 22:03, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.