Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Washington → Portland via Houston: arrives on time 45%
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16:59 DCA → 19:27 IAHUA 1785 · United · 3h 28m · 66% on time, 0.7% cancelled
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50m layover in Houston (IAH) · 45 min minimum on one ticket
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20:17 IAH → 22:48 PDXUA 1420 · United · 4h 31m · 79% on time, 0.6% cancelled
Total trip 8h 49m, scheduled departure to arrival (Portland is 3 h behind Washington). Times are local. Both flew on 39 of the last 56 days.
Makes the connection58%The first flight arrived more than 5 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time45%First flight not cancelled (0.7% are) × connection made (58%) × second flight not cancelled (0.6% are) and within 15 minutes (79%).
Total trip8h 49mDCA 16:59 to PDX 22:48, 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.