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

UNITED · FLIGHT UA 639 LANDED 10:44 PM PT, ~57 MIN LATE

Friday, October 2

UA 639 · BOS → LAX

took off 8:04 PM ET · landed 10:44 PM PT (scheduled 6:26 PM ET → 9:51 PM PT)

Forecast issued Fri 10:00 PM ET · 4h after departure

Arrive at LAX more than 15 minutes late?

Late chance · ±0 pts −8 pts · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

How late did it get to LAX?

RESOLVED

On time or early
–
15–30 min late
–
30 min–1 hour late
✓
1–2 hours late
–
Over 2 hours late
–

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

What’s moving the odds

↑ Gusts to 28 kt forecast at BOS that day

↑ Later flights pick up delays from earlier in the day

↑ Arrivals into LAX at that hour are often late

↓ Mostly benign weather forecast at LAX

↓ Other factors

Weather at each end

BOS (origin) Gusts28 kt Ceiling5,000 ft Visibility7 mi Precipnone

LAX (destination) Gusts12 kt Ceilingnone (clear) Visibility3 mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

UA 639 · BOS → LAX

Odds over time

How late did it get to LAX?