Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Dulles via San Diego: arrives on time 60%
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19:00 SFO → 20:53 SANUA 1343 · United · 1h 53m · 65% on time, 0.0% cancelled
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1h 06m layover in San Diego (SAN) · 45 min minimum on one ticket
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21:59 SAN → 05:59 IAD +1 dayUA 2129 · United · 5h 00m · 89% on time, 1.2% cancelled
Total trip 7h 59m, scheduled departure to arrival (Dulles is 3 h ahead of San Francisco). Times are local. Both flew on 55 of the last 56 days.
Makes the connection68%The first flight arrived more than 21 minutes late on 32% of the days it flew: too late for the 45-minute minimum connection on a 1h 06m layover.
Arrives on time60%First flight not cancelled (0.0% are) × connection made (68%) × second flight not cancelled (1.2% are) and within 15 minutes (89%).
Total trip7h 59mSFO 19:00 to IAD 05:59, 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.