Flight number record

B6 1202

JetBlue Airways · New York to Buffalo

Route: JFK → BUF
Departs: 17:30
Flights: 304
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1202, check with JetBlue Airways.

B6 1202 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 304 flights, with a median arrival 1 minute late.

The national on-time rate over the same period is 77.6%, so B6 1202 runs 15 points behind the country as a whole. Across a thousand flights that is about 146 extra late arrivals.

On time

63.0%

Arrivals under 15 minutes late, of 292 completed flights

Avg delay

100 min

Across delayed arrivals only, not all flights

Cancelled

3.95%

National rate is 1.81%

1 hour+ late

20.2%

National rate is 8.1%

These figures cover 304 flights between July 2025 and June 2026. Beyond the headline rate, 20.2% 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 1202 flies

B6 1202 flies JFK to BUF without a single fixed slot. Its most common scheduled departure was 17:30, used on 72 of 304 flights, with 17:15 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:3072 flights23.7%
Departs 17:1536 flights11.8%

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 17:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and B6 1202 runs 5 points worse at 63.0%. 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 1202 next to JFK to BUF

Every carrier on JFK to BUF combined arrived on time 75.0% of the time across 1,218 flights, so B6 1202 is 12 points behind it. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 10 points.

B6 1202 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1202thin sample	304	63.0%	100 min	3.95%	D−
All JetBlue Airways on JFK–BUF	1,218	75.0%	88 min	4.52%	B−
All carriers on JFK–BUF	1,218	75.0%	88 min	4.52%	B−
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1202 quarter by quarter

Quarter by quarter B6 1202 held fairly steady: 65.5% in Jul–Sep 2025, 61.9% in Oct–Dec 2025, 56.5% in Jan–Mar 2026 and 65.3% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights65.5%
Oct–Dec 202588 flights61.9%
Jan–Mar 202648 flights56.5%
Apr–Jun 202676 flights65.3%

Scale runs 50% to 70%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1202 did best on Tuesday at 81.4% on time and worst on Sunday at 43.9%. Each day rests on about 43 flights, so a gap of 38 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1202 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 11,000 reported delay minutes.

Carrier
41%
Late-arriving aircraft
36%
National Airspace System
16%
Extreme weather
8%

36% 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 11,000 reported delay minutes here, that single category outweighs weather by 5 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 10,780 delay minutes reported on B6 1202.

Cancellations run at 3.95%, against 1.81% nationally. That is about one flight in 25 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. 20.2% 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 304 flights under B6 1202 in the data flew JFK to BUF. 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. 304 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 1202

For a booking, the cancellation rate is the figure to plan around on B6 1202: 3.95% of its 304 scheduled flights did not operate. A late arrival costs an hour and a half, 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