Carrier route record
B6JFK→SLC
JetBlue Airways · New York to Salt Lake City
- Flights
- 393
- Period
- July 2025 to June 2026
- Share of route
- 20%
- 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 SLC sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 393 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so JetBlue on JFK to SLC runs 9 points behind the country as a whole. Across a thousand flights that is about 89 extra late arrivals.
Key figures
On time
68.7%
Arrivals under 15 minutes late, of 383 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
2.54%
National rate is 1.81%
Whole route
78.4%
Every carrier on JFK to SLC, 1,928 flights
These figures cover 393 flights between July 2025 and June 2026. Beyond the headline rate, 12.5% 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 SLC
JetBlue flew 393 of the 1,928 flights on JFK to SLC, about 20% of it. Its 68.7% on time is 10 points worse than the route as a whole, which runs 78.4%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 80.8% to JetBlue at 68.7%.
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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,535 | 80.8% | 64 min | 1.63% | B |
| JetBlue Airways (this page) | 393 | 68.7% | 68 min | 2.54% | C |
Flight by flight
JetBlue flight numbers on JFK to SLC
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 15 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–8am—
- 8am–11am63 flights55.7%
- 11am–2pm3 flights—
- 2pm–5pm—
- 5pm–8pm327 flights70.9%
- 8pm–5am—
Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 70.9% on time. The full set of windows spans 15 points.
Across the year
JetBlue on JFK to SLC through the year
December is the weak month at 60.0% on time, against 83.9% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. February was the busiest month here, with 45 flights.
Across the week, Monday is the strongest day at 75.5% on time and Thursday the weakest at 60.7%. 15 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 8,121 reported delay minutes.
- 34%National Airspace System
- 26%Late-arriving aircraft
- 26%Carrier
- 13%Extreme weather
- 1%Security
Extreme weather accounts for 13% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.0 times the usual weather exposure. The split is drawn from 8,121 reported delay minutes.
34% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,761 minutes out of 8,121, against a national NAS share of 21%.
Cancellations run at 2.54%, 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 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. 12.5% 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.
The return leg is a different operation and performs like one: it runs 75.9% on time across 393 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 393 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 SLC
Put together: treat all of this as provisional. 393 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 68.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 383 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to SLC, every carrier
- JetBlue on SLC to JFK, the return leg
- Delta Air Lines on JFK to SLC80.8%
- JetBlue Airways network-wide record
- John F. Kennedy International (JFK) delay statistics
- Salt Lake City International (SLC) delay statistics
- The US routes with the most cancellations
- The best time of day to fly, according to 7.04 million flight records
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.