Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Dulles via Dallas-Fort Worth: arrives on time 54%
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10:25 SFO → 16:08 DFWUA 2842 · United · 3h 43m · 61% on time, 0.0% cancelled
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1h 07m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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17:15 DFW → 21:24 IADUA 1240 · United · 3h 09m · 79% 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 56 of the last 56 days.
Makes the connection69%The first flight arrived more than 22 minutes late on 31% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time54%First flight not cancelled (0.0% are) × connection made (69%) × second flight not cancelled (1.2% are) and within 15 minutes (79%).
Total trip7h 59mSFO 10:25 to IAD 21:24, 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.