UA2647United Airlines · SFO → BOS
live · 13m ago
Route confirmed United Airlines

UA2647 San FranciscoSFO · 08:10 BostonBOS · 16:49

UA2647 by United Airlines flies from San Francisco (SFO) to Boston (BOS) for the Sun, Nov 1 departure.

Right nowOn Time · gate F21
08:10

departs SFO · on schedule

Wins back in air~15 minmedian gate push vs arrival · how planes make up time →

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
BOSBostonOn-time likelyBOS delay board →
SFO→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
46%Chance of 15+ min delay
2.6%Chance of cancellation
+11 minTypical airport delay in this weather

Conditions at SFO and BOS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

San Francisco to Boston with United Airlines · Mon 2 Nov, local date

Outlook: below usual
Chance a departure is cancelled
0.8%0.7× usual
Chance a departure leaves 60+ min late
8.2%0.7× usual

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 6 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to Boston flights today

same route · United Airlines
UA371departs 07:00
UA2356departs 10:40
UA8156departs 10:50
UA1372departs 12:10
UA8172departs 12:45
UA2634departs 14:05

If UA2647 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Boston on the same day, with scheduled departure times in SFO local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA2647 actually runs

Pro Flight Search has tracked every published board update for UA2647 across the SFO and BOS boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: left right on schedule but landed about 18 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA2647 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-31SFO 08:10 08:07 (−3)BOS 16:49 16:31 (−18)
10-30SFO 08:10 08:04 (−6)BOS 16:49 16:29 (−20)

Board clocks recorded as SFO and BOS published them.

Planning around UA2647? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA2647 San Francisco to Boston on-time performance, measured from the SFO and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/UA2647
How we measure this →