Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 50 SCHEDULED · TYPICAL SCHEDULE

Wednesday, October 14

DL 50 · SLC → LHR

departs 5:33 PM MT · arrives 9:55 AM BST

Forecast issued Mon 3:00 PM ET · 52h before departure

Arrive at LHR more than 15 minutes late?

11% chance · ±1 pts −2 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to LHR?

On time or early
88%
15–30 min late
4%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
<1%
Cancelled
<1%

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

What’s moving the odds

↑ Later flights pick up delays from earlier in the day

↑ This route's recent record

↓ Wednesdays in October are usually quieter than average

↓ Mostly benign weather forecast at LHR

Weather at each end

SLC (origin) Gusts19 kt Ceiling4,300 ft Visibility10+ mi Precip0.03 in

LHR (destination) Gusts8 kt Ceilingnone (clear) Visibility10+ 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.

DL 50 · SLC → LHR

Odds over time

How late will it get to LHR?