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

DELTA · FLIGHT DL 1421 LANDED 8:02 AM PT, ~11 MIN EARLY
Today

DL 1421 · LAX → SFO

took off 7:11 AM PT · landed 8:02 AM PT (scheduled 7:00 AM PT → 8:21 AM PT)
Forecast issued Sat 12:00 PM ET · 2h after departure

Odds over time

Arrive at SFO more than 15 minutes late?
Not late chance · ±1 pts +5 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 4.5d 2d 1d 12h 6h Departs Lands

How late did it get to SFO?

RESOLVED
  1. On time or early
    ✓
  2. 15–30 min late
    –
  3. 30 min–1 hour late
    –
  4. 1–2 hours late
    –
  5. Over 2 hours late
    –

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