Carrier route record

B6JFK→BNA

JetBlue Airways · New York to Nashville

Flights: 539
Period: July 2025 to June 2026
Share of route: 37%
Carriers: 2

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

JetBlue on JFK to BNA sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 539 flights, with a median arrival 5 minutes early.

The national on-time rate over the same period is 77.6%, so JetBlue on JFK to BNA runs 6 points behind the country as a whole. Across a thousand flights that is about 63 extra late arrivals.

On time

71.3%

Arrivals under 15 minutes late, of 512 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

4.64%

National rate is 1.81%

Whole route

73.5%

Every carrier on JFK to BNA, 1,466 flights

These figures cover 539 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% 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.

Carrier by carrier

JetBlue against every carrier on JFK to BNA

JetBlue flew 539 of the 1,466 flights on JFK to BNA, about 37% of it. Its 71.3% on time is 2 points worse than the route as a whole, which runs 73.5%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Republic at 74.8% to JetBlue at 71.3%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on JFK to BNA
Airline	Flights	On time	Avg delay	Cancelled	Grade
Republic Airways	927	74.8%	64 min	4.10%	C−
JetBlue Airways (this page)	539	71.3%	58 min	4.64%	C−

Flight by flight

JetBlue flight numbers on JFK to BNA

B6 117313:3075.5% · 326 flights

Departure window

When JetBlue runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am82 flights87.5%
8am–11am144 flights71.9%
11am–2pm118 flights79.1%
2pm–5pm47 flights63.8%
5pm–8pm31 flights—
8pm–5am117 flights55.6%

Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.

The 8pm–5am window is where this operation falls apart: 55.6% on time, against 87.5% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 144 flights scheduled in it.

Across the year

JetBlue on JFK to BNA through the year

Darker means more delays. Figures are on-time percentages.March best, July worst

July is the worst month at 49.0% on time, 41 points below March, the best at 90.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 62 flights.

Across the week, Tuesday is the strongest day at 80.6% on time and Thursday the weakest at 59.5%. 21 points is a smaller lever than departure hour, but it is free.

Delay causes

Why JetBlue runs late on this route

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 8,549 reported delay minutes.

Carrier
36%
Late-arriving aircraft
34%
National Airspace System
28%
Extreme weather
1%
Security
0%

34% 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 8,549 reported delay minutes here, that single category outweighs weather by 34 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 8,549 reported delay minutes.

The largest share of delay minutes, 36%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,105 of the 8,549 delay minutes reported here.

Cancellations run at 4.64%, against 1.81% nationally. That is about one flight in twenty 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 stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% 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.

The 765 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg is a different operation and performs like one: it runs 76.7% on time across 541 flights, 5 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.

One caution: this is a thin sample. 539 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 JetBlue on JFK to BNA

Put together: the delay figures matter less here than the 4.64% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 512 completed flights over 12 months sit behind that.

Where to go next

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