Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Portland → Tucson via Chicago: arrives on time 26%
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13:45 PDX → 19:50 ORDAA 3303 · American · 4h 05m · 53% on time, 2.9% cancelled
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1h 10m layover in Chicago (ORD) · 45 min minimum on one ticket
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21:00 ORD → 22:43 TUSAA 2661 · American · 3h 43m · 43% on time, 2.6% cancelled
Total trip 8h 58m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.
Makes the connection64%The first flight arrived more than 25 minutes late on 36% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time26%First flight not cancelled (2.9% are) × connection made (64%) × second flight not cancelled (2.6% are) and within 15 minutes (43%).
Total trip8h 58mPDX 13:45 to TUS 22:43, 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.