Flight number record

B6 616

JetBlue Airways · San Francisco to New York

Route: SFO → JFK
Departs: 21:00
Flights: 275
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 616, check with JetBlue Airways.

B6 616 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 close to two hours on average. That is a workable record, not a spotless one. That rests on 275 flights, with a median arrival 8 minutes early.

Set against the rest of the country, B6 616's record is 6 points better than the US average of 77.6%. That gap is worth roughly 56 fewer late arrivals for every thousand flights.

On time

83.2%

Arrivals under 15 minutes late, of 268 completed flights

Avg delay

101 min

Across delayed arrivals only, not all flights

Cancelled

2.55%

National rate is 1.81%

1 hour+ late

6.7%

National rate is 8.1%

These figures cover 275 flights between July 2025 and June 2026. The median arrival is 8 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 616 flies

B6 616 flies SFO to JFK without a single fixed slot. Its most common scheduled departure was 21:00, used on 49 of 275 flights, with 16:30 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:0049 flights17.8%
Departs 16:3045 flights16.4%

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 21:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and B6 616 runs 13 points better at 83.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

B6 616 next to SFO to JFK

Every carrier on SFO to JFK combined arrived on time 80.1% of the time across 6,729 flights, so B6 616 is 3 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 81.4% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 11 points.

B6 616 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 616thin sample	275	83.2%	101 min	2.55%	B
All JetBlue Airways on SFO–JFK	1,945	81.4%	76 min	1.95%	B
All carriers on SFO–JFK	6,729	80.1%	78 min	1.98%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 616 quarter by quarter

B6 616 did not run the same all year. Its best quarter was Apr–Jun 2026 at 93.0% on time and its weakest Jan–Mar 2026 at 78.4%, a swing of 15 points on roughly 69 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 202573 flights85.7%
Oct–Dec 202581 flights80.2%
Jan–Mar 202678 flights78.4%
Apr–Jun 202643 flights93.0%

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

By weekday, B6 616 did best on Monday at 90.9% on time and worst on Thursday at 71.1%. Each day rests on about 39 flights, so a gap of 20 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 616 runs late

One category carries most of the weight here. Carrier accounts for 48% of the 4,529 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.

Carrier
48%
Late-arriving aircraft
39%
National Airspace System
13%

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,529 reported delay minutes here, that single category outweighs weather by 39 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,529 delay minutes reported on B6 616.

Cancellations run at 2.55%, against 1.81% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

6.7% 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 close to two hours, 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 275 flights under B6 616 in the data flew SFO to JFK. 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. 275 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 616

For a booking, the cancellation rate is the figure to plan around on B6 616: 2.55% of its 275 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.

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