Flight number record

B6 717

JetBlue Airways · Boston to New York

Route: BOS → JFK
Departs: 12:20
Flights: 298
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 717, check with JetBlue Airways.

B6 717 draws a D−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 298 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so B6 717 runs 13 points behind the country as a whole. Across a thousand flights that is about 134 extra late arrivals.

On time

64.2%

Arrivals under 15 minutes late, of 288 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

3.36%

National rate is 1.81%

1 hour+ late

15.3%

National rate is 8.1%

These figures cover 298 flights between July 2025 and June 2026. Beyond the headline rate, 15.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When B6 717 flies

B6 717 flies BOS to JFK without a single fixed slot. Its most common scheduled departure was 12:20, used on 44 of 298 flights, with 17:07 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:2044 flights14.8%
Departs 17:0732 flights10.7%

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 12:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 717 runs 15 points worse at 64.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 717 next to BOS to JFK

Every carrier on BOS to JFK combined arrived on time 75.5% of the time across 5,738 flights, so B6 717 is 11 points behind it. JetBlue flew 2,455 flights on the same city pair under all its flight numbers, including this one, and those ran 73.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 9 points.

B6 717 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 717thin sample	298	64.2%	80 min	3.36%	D−
All JetBlue Airways on BOS–JFK	2,455	73.6%	81 min	4.24%	C−
All carriers on BOS–JFK	5,738	75.5%	73 min	4.55%	B−
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 717 quarter by quarter

B6 717 did not run the same all year. Its best quarter was Oct–Dec 2025 at 66.3% on time and its weakest Jan–Mar 2026 at 52.3%, a swing of 14 points on roughly 99 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 202528 flights—
Oct–Dec 202591 flights66.3%
Jan–Mar 202688 flights52.3%
Apr–Jun 202691 flights66.3%

Scale runs 45% to 70%. Rows with fewer than 30 flights show a dash.

By weekday, B6 717 did best on Tuesday at 74.4% on time and worst on Sunday at 50.0%. Each day rests on about 43 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 717 runs late

One category carries most of the weight here. National Airspace System accounts for 45% of the 8,210 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
45%
Late-arriving aircraft
35%
Carrier
15%
Extreme weather
5%
Security
0%

35% 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 8,210 reported delay minutes here, that single category outweighs weather by 7 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 8,210 delay minutes reported on B6 717.

Cancellations run at 3.36%, against 1.81% nationally. That is about one flight in 30 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

Every one of the 298 flights under B6 717 in the data flew BOS 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. 298 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 717

For a booking, the cancellation rate is the figure to plan around on B6 717: 3.36% of its 298 scheduled flights did not operate. A late arrival costs a little over an hour, 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