Carrier route record
B6JFK→SLC
JetBlue Airways · New York to Salt Lake City
- Flights
- 393
- Period
- September 2025 to August 2026
- Share of route
- 20%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on JFK to SLC draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 393 flights, with a median arrival 3 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on JFK to SLC runs 10 points behind the country as a whole. Across a thousand flights that is about 97 extra late arrivals.
Key figures
On time
67.6%
Arrivals under 15 minutes late, of 376 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
4.33%
National rate is 1.89%
Whole route
76.4%
Every carrier on JFK to SLC, 1,929 flights
These figures cover 393 flights between September 2025 and August 2026. Beyond the headline rate, 12.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
JetBlue against every carrier on JFK to SLC
JetBlue flew 393 of the 1,929 flights on JFK to SLC, about 20% of it. Its 67.6% on time is 9 points worse than the route as a whole, which runs 76.4%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 78.6% to JetBlue at 67.6%.
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 | 1,536 | 78.6% | 66 min | 1.95% | B |
| JetBlue Airways (this page) | 393 | 67.6% | 64 min | 4.33% | C− |
Flight by flight
JetBlue flight numbers on JFK to SLC
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 14 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am63 flights55.7%
- 11am–2pm3 flights—
- 2pm–5pm—
- 5pm–8pm327 flights69.6%
- 8pm–5am—
Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is the strongest at 69.6% on time. The full set of windows spans 14 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 74.5% on time and Thursday the weakest at 58.2%, a spread of 16 points.
Arrival by arrival
How late JetBlue on JFK to SLC runs when it is late
JetBlue on JFK to SLC often beats the schedule: 123 of 376 completed flights, 33%, arrived 15 minutes or more early. The 122 late arrivals split 37 under half an hour, 40 between 30 and 60 minutes, and 45 an hour or more.
- 15+ min early123 flights32.7%
- Within 15 min131 flights34.8%
- 15–29 min late37 flights9.8%
- 30–59 min late40 flights10.6%
- 1–2 hours late25 flights6.6%
- 2+ hours late20 flights5.3%
Scale runs 0% to 100%.
Share of 376 completed flights by arrival against schedule.
20 of 100 late departures made up the time and arrived on time, 20% of them. In the other direction, 42 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SLC.
The worst days
Worst days for JetBlue on JFK to SLC
The latest arrival of the period was on 20 May 2026, 5 hours 36 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 May 2026 | 5 hours 36 minutes | Extreme weather |
| 14 February 2026 | 4 hours 25 minutes | Carrier |
| 19 July 2026 | 3 hours 29 minutes | Carrier |
| 24 February 2026 | 2 hours 52 minutes | Late-arriving aircraft |
| 19 March 2026 | 2 hours 51 minutes | Carrier |
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 7,764 reported delay minutes.
- 34%National Airspace System
- 30%Carrier
- 23%Late-arriving aircraft
- 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 2.2 times the usual weather exposure. The split is drawn from 7,764 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 2,612 minutes out of 7,764, against a national NAS share of 21%.
Cancellations run at 4.33%, against 1.89% 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 stage length
What a delay here costs
12.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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 73.9% on time across 393 flights, 6 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 6 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: the delay figures matter less here than the 4.33% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 376 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 SLC78.6%
- 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 7.05 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.