Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

JETBLUE · FLIGHT B6 1734 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2

B6 1734 · SFO → BOS

departs 10:25 AM PT · arrives 7:12 PM ET

Forecast issued Thu 12:00 AM ET · 37h before departure

Arrive at BOS more than 15 minutes late?

48% chance · ±1 pts +21 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
52%
15–30 min late
7%
30 min–1 hour late
20%
1–2 hours late
11%
Over 2 hours late
9%
Cancelled
1%

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

What’s moving the odds

↑ Mostly benign weather forecast at BOS

↑ Arrivals into BOS at that hour are often late

↑ 10am departures from SFO are often late

↓ Cloud base down to 900 ft forecast at SFO that day

↓ Other factors

Weather at each end

SFO (origin) Gusts8 kt Ceiling900 ft Visibility8 mi Precipnone

BOS (destination) Gusts20 kt Ceiling8,000 ft Visibility7 mi Precip0.09 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.

B6 1734 · SFO → BOS

Odds over time

How late will it get to BOS?