Flight number record

B6 71

JetBlue Airways · New York to Salt Lake City

Route: JFK → SLC
Departs: 18:30
Flights: 327
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 71, check with JetBlue Airways.

B6 71 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 327 flights, with a median arrival 5 minutes early.

The national on-time rate over the same period is 77.6%, so B6 71 runs 7 points behind the country as a whole. Across a thousand flights that is about 67 extra late arrivals.

On time

70.9%

Arrivals under 15 minutes late, of 320 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

2.14%

National rate is 1.81%

1 hour+ late

11.6%

National rate is 8.1%

These figures cover 327 flights between July 2025 and June 2026. Beyond the headline rate, 11.6% 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 71 flies

B6 71 flies JFK to SLC without a single fixed slot. Its most common scheduled departure was 18:30, used on 48 of 327 flights, with 19:30 (48 flights) and 18:45 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 18:3048 flights14.7%
Departs 19:3048 flights14.7%
Departs 18:4537 flights11.3%

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 18:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and B6 71 runs 3 points better at 70.9%. 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 71 next to JFK to SLC

Every carrier on JFK to SLC combined arrived on time 78.4% of the time across 1,928 flights, so B6 71 is 8 points behind it. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 2 points.

B6 71 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 71thin sample	327	70.9%	68 min	2.14%	C
All JetBlue Airways on JFK–SLC	393	68.7%	68 min	2.54%	C
All carriers on JFK–SLC	1,928	78.4%	65 min	1.82%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 71 quarter by quarter

Quarter by quarter B6 71 held fairly steady: 67.8% in Jul–Sep 2025, 70.1% in Oct–Dec 2025, 74.2% in Jan–Mar 2026 and 72.5% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights67.8%
Oct–Dec 202578 flights70.1%
Jan–Mar 202666 flights74.2%
Apr–Jun 202691 flights72.5%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, B6 71 ranged from 63.6% on Sunday to 75.0% on Monday. With about 47 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why B6 71 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 6,296 reported delay minutes.

National Airspace System
31%
Late-arriving aircraft
31%
Carrier
22%
Extreme weather
16%
Security
0%

Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 6,296 delay minutes reported on B6 71.

Cancellations sit at 2.14% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

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. 11.6% 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.

At 1,990 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 327 flights under B6 71 in the data flew JFK to SLC. 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. 327 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 71

For a booking, B6 71 is one of the weaker ways to fly JFK to SLC: 8 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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