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

Portland → Billings via Seattle: arrives on time 82%

  1. 11:20 PDX → 12:36 SEA
    DL 3818 · Delta, flown by SkyWest · 1h 16m · 91% on time, 0.3% cancelled
  2. 3h 13m layover in Seattle (SEA) · 90 min minimum on separate tickets
  3. 15:49 SEA → 18:42 BIL
    AS 2353 · Alaska, flown by Horizon · 1h 53m · 83% on time, 0.9% cancelled

Total trip 6h 22m, scheduled departure to arrival (Billings is 1 h ahead of Portland). Times are local. Both flew on 52 of the last 56 days.

Makes the connection99%The first flight arrived more than 103 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 13m layover.
Arrives on time82%First flight not cancelled (0.3% are) × connection made (99%) × second flight not cancelled (0.9% are) and within 15 minutes (83%).
Total trip6h 22mPDX 11:20 to BIL 18:42, 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.