Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Portland → Kailua/Kona via San Francisco: arrives on time 35%
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07:00 PDX → 08:56 SFOUA 2818 · United · 1h 56m · 35% on time, 0.0% cancelled
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1h 14m layover in San Francisco (SFO) · 45 min minimum on one ticket
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10:10 SFO → 12:37 KOAUA 694 · United · 5h 27m · 88% on time, 0.9% cancelled
Total trip 8h 37m, scheduled departure to arrival (Kailua/Kona is 3 h behind Portland). Times are local. Both flew on 56 of the last 56 days.
Makes the connection40%The first flight arrived more than 29 minutes late on 60% of the days it flew: too late for the 45-minute minimum connection on a 1h 14m layover.
Arrives on time35%First flight not cancelled (0.0% are) × connection made (40%) × second flight not cancelled (0.9% are) and within 15 minutes (88%).
Total trip8h 37mPDX 07:00 to KOA 12:37, 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.