Tracked live by the FAA. The scheduled times shown are from a typical Wednesday because the FAA's flight plan was first seen after takeoff.

DELTA · FLIGHT DL 1503 PROBABLY LANDED (THE FAA HASN'T CONFIRMED THE LANDING TIME)
Yesterday

DL 1503 · GEG → SLC

took off 5:22 PM PT · probably landed (not confirmed) (scheduled 5:10 PM PT → 7:55 PM MT)
Forecast issued Wed 10:00 PM ET · 2h after departure

Odds over time

Arrive at SLC more than 15 minutes late?
10% chance · ±0 pts +1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 2.9d 2d 1d 12h 6h Departs Lands

How late will it get to SLC?

  1. On time or early
    89%
  2. 15–30 min late
    5%
  3. 30 min–1 hour late
    3%
  4. 1–2 hours late
    2%
  5. Over 2 hours late
    <1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.