DL 977 · SFO → BOS

departs 1:06 PM PT · arrives 9:57 PM ET

Forecast issued Thu 4:00 PM ET · 24h before departure

Arrive at BOS more than 15 minutes late?

78% chance · ±12 pts −13 pts · 24h

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

How late will it get to BOS?

On time or early
21%
15–30 min late
14%
30 min–1 hour late
16%
1–2 hours late
21%
Over 2 hours late
24%
Cancelled
4%

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

What’s moving the odds

↑ Gusts to 33 kt, 0.7 in of rain forecast at SFO that day

↑ 1pm departures from SFO are often late

↑ SFO is prone to delays

↓ Other factors

↓ Fridays in November are usually quieter than average

Weather at each end

SFO (origin) Gusts33 kt Ceiling2,700 ft Visibility4 mi Precip0.71 in

BOS (destination) Gusts25 kt Ceiling600 ft Visibility0.7 mi Precip0.18 in

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 977 · SFO → BOS

Odds over time

How late will it get to BOS?