Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Ontario → Washington via San Francisco: arrives on time 77%
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06:00 ONT → 07:25 SFOUA 2363 · United · 1h 25m · 91% on time, 1.0% cancelled
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55m layover in San Francisco (SFO) · 45 min minimum on one ticket
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08:20 SFO → 16:47 DCAUA 1678 · United · 5h 27m · 90% on time, 0.6% cancelled
Total trip 7h 47m, scheduled departure to arrival (Washington is 3 h ahead of Ontario). Times are local. Both flew on 55 of the last 56 days.
Makes the connection87%The first flight arrived more than 10 minutes late on 13% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time77%First flight not cancelled (1.0% are) × connection made (87%) × second flight not cancelled (0.6% are) and within 15 minutes (90%).
Total trip7h 47mONT 06:00 to DCA 16:47, 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.