Flight number record

B6 115

JetBlue Airways · New York to San Francisco

Route: JFK → SFO
Departs: 06:15
Flights: 338
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 115, check with JetBlue Airways.

B6 115 lands a B, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 338 flights, with a median arrival 14 minutes early.

Set against the rest of the country, B6 115's record is 6 points better than the US average of 77.6%. That gap is worth roughly 59 fewer late arrivals for every thousand flights.

On time

83.5%

Arrivals under 15 minutes late, of 334 completed flights

Avg delay

62 min

Across delayed arrivals only, not all flights

Cancelled

1.18%

National rate is 1.81%

1 hour+ late

5.4%

National rate is 8.1%

These figures cover 338 flights between July 2025 and June 2026. The median arrival is 14 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When B6 115 flies

B6 115 flies JFK to SFO without a single fixed slot. Its most common scheduled departure was 06:15, used on 93 of 338 flights, with 10:30 (69 flights) and 06:00 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:1593 flights27.5%
Departs 10:3069 flights20.4%
Departs 06:0037 flights10.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 06:15 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and B6 115 runs 6 points worse at 83.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

B6 115 next to JFK to SFO

Every carrier on JFK to SFO combined arrived on time 74.1% of the time across 6,730 flights, so B6 115 is 9 points ahead of it. JetBlue flew 1,945 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 11 points.

B6 115 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 115thin sample	338	83.5%	62 min	1.18%	B
All JetBlue Airways on JFK–SFO	1,945	76.7%	75 min	2.01%	B
All carriers on JFK–SFO	6,730	74.1%	71 min	1.92%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 115 quarter by quarter

B6 115 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.2% on time and its weakest Jan–Mar 2026 at 77.9%, a swing of 18 points on roughly 85 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202579 flights96.2%
Oct–Dec 202588 flights78.4%
Jan–Mar 202690 flights77.9%
Apr–Jun 202681 flights82.7%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, B6 115 did best on Tuesday at 92.3% on time and worst on Thursday at 75.0%. Each day rests on about 48 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 115 runs late

One category carries most of the weight here. National Airspace System accounts for 46% of the 3,426 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

National Airspace System
46%
Carrier
30%
Late-arriving aircraft
14%
Extreme weather
9%
Security
0%

46% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,591 minutes out of 3,426, against a national NAS share of 21%. The split is drawn from 3,426 delay minutes reported on B6 115.

Cancellations sit at 1.18% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

5.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

At 2,586 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 338 flights under B6 115 in the data flew JFK to SFO. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 338 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking B6 115

For a booking, read B6 115 as 83.5% on time with 1.18% cancelled over 338 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means JetBlue Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures