tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Portland → Billings via Salt Lake City: arrives on time 93%

  1. 05:45 PDX → 08:39 SLC
    DL 1270 · Delta · 1h 54m · 98% on time, 0.3% cancelled
  2. 1h 01m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
  3. 09:40 SLC → 11:09 BIL
    DL 4038 · Delta, flown by SkyWest · 1h 29m · 96% on time, 0.4% cancelled

Total trip 4h 24m, scheduled departure to arrival (Billings is 1 h ahead of Portland). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 16 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time93%First flight not cancelled (0.3% are) × connection made (99%) × second flight not cancelled (0.4% are) and within 15 minutes (96%).
Total trip4h 24mPDX 05:45 to BIL 11:09, 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.