B6434JetBlue Airways · SFO → BOS
live · 21m ago
Route confirmed JetBlue Airways

B6434 San FranciscoSFO · 07:30 BostonBOS · 16:05

B6434 by JetBlue Airways flies from San Francisco (SFO) to Boston (BOS) for the Fri, Nov 6 departure.

Right nowOn Time · gate A15 · as of 01:32
07:30

departs SFO · on schedule

Typical arrival−13 minmedian over 4 operations
Wins back in air~10 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-06
−11 arrival
11-05
−3 gate · −11 arrival
11-04
−4 gate · −16 arrival
11-03
−18 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

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

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
50%Chance of 15+ min delay
4.1%Chance of cancellation
+13 minTypical airport delay in this weather

Driven mainly by BOS (Boston), currently flying MVFR (marginal visual). 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 at San Francisco

Forecast

Sat 7 Nov, local date

High21°Clikely 19°C to 23°C
Low12°Clikely 11°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Boston

Forecast

Sat 7 Nov, local date

High17°Clikely 15°C to 20°C
Low11°Clikely 8°C to 15°C
  • 97% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · 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 · JetBlue Airways
B61734departs 10:44
B61034departs 12:14
B61634departs 12:30
B61234departs 14:50
B6734departs 15:19
B6134departs 22:10

If B6434 is cancelled, these are the other JetBlue Airways 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 B6434 actually runs

Pro Flight Search has tracked every published board update for B6434 across the SFO and BOS boards: schedule changes, gate pushes and actual clocks. Usually lands ~13 min early. Based on 4 confirmed landings · 4/4 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how B6434 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
11-06SFO 07:30BOS 16:05 15:54 (−11)
11-05SFO 07:30 07:27 (−3)BOS 16:05 15:54 (−11)
11-04SFO 07:30 07:26 (−4)BOS 16:05 15:49 (−16)
11-03SFO BOS 16:05 15:47 (−18)

Board clocks recorded as SFO and BOS published them.

Planning around B6434? 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: B6434 San Francisco to Boston on-time performance, measured from the SFO and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/B6434
How we measure this →