Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Portland → Nashville via Chicago: arrives on time 88%

  1. 22:59 PDX → 05:00 ORD
    AS 376 · Alaska · 4h 01m · 87% on time, 2.7% cancelled
  2. 3h 40m layover in Chicago (ORD) · 90 min minimum on separate tickets
  3. 08:40 ORD → 10:34 BNA +1 day
    UA 5304 · United, flown by SkyWest · 1h 54m · 94% on time, 3.1% cancelled

Total trip 9h 35m, scheduled departure to arrival (Nashville is 2 h ahead of Portland). Times are local. Both flew on 31 of the last 56 days.

Makes the connection99%The first flight arrived more than 130 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 40m layover.
Arrives on time88%First flight not cancelled (2.7% are) × connection made (99%) × second flight not cancelled (3.1% are) and within 15 minutes (94%).
Total trip9h 35mPDX 22:59 to BNA 10:34, 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.