Schedule: the flights that flew on Friday, Oct 23, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

DELTA · FLIGHT DL 931 SCHEDULED · TYPICAL SCHEDULE

Friday, October 30

DL 931 · LAS → BOS

departs 10:05 PM PT · arrives 6:15 AM ET

Forecast issued Fri 11:00 PM ET · 2h before departure

Arrive at BOS more than 15 minutes late?

45% chance · ±0 pts +19 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

How late will it get to BOS?

On time or early
55%
15–30 min late
16%
30 min–1 hour late
17%
1–2 hours late
9%
Over 2 hours late
3%
Cancelled
<1%

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

What’s moving the odds

↑ 10pm departures from LAS are often late

↑ LAS is prone to delays

↑ This flight has been late 24% of the time recently

↓ BOS usually runs smoothly

↓ Gusts to 32 kt forecast at BOS that day

Weather at each end

LAS (origin) Gusts22 kt Ceiling4,100 ft Visibility10+ mi Precip0.01 in

BOS (destination) Gusts32 kt Ceiling9,000 ft 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 931 · LAS → BOS

Odds over time

How late will it get to BOS?