Carrier route record
B6SLC→JFK
JetBlue Airways · Salt Lake City to New York
- 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 SLC to JFK sits in the middle of the pack with a B−. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 393 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate JetBlue on SLC to JFK from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.9%
Arrivals under 15 minutes late, of 381 completed flights
Avg delay
99 min
Across delayed arrivals only, not all flights
Cancelled
3.05%
National rate is 1.81%
Whole route
82.0%
Every carrier on SLC to JFK, 1,931 flights
These figures cover 393 flights between July 2025 and June 2026. Beyond the headline rate, 11.5% 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 SLC to JFK
JetBlue flew 393 of the 1,931 flights on SLC to JFK, about 20% of it. Its 75.9% on time is 6 points worse than the route as a whole, which runs 82.0%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 83.5% to JetBlue at 75.9%.
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 | 1,538 | 83.5% | 68 min | 1.63% | B |
| JetBlue Airways (this page) | 393 | 75.9% | 99 min | 3.05% | B− |
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 11 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–11am—
- 11am–2pm35 flights67.6%
- 2pm–5pm28 flights—
- 5pm–8pm3 flights—
- 8pm–5am327 flights78.1%
Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 67.6% on time against 78.1% for 8pm–5am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8pm–5am window is the busiest, with 327 flights scheduled in it.
Across the year
JetBlue on SLC to JFK through the year
April is the best month on the calendar at 86.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. February was the busiest month here, with 45 flights.
Across the week, Monday is the strongest day at 83.3% on time and Thursday the weakest at 66.1%. 17 points is a smaller lever than departure hour, but it is free.
Delay causes
Why JetBlue runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 9,120 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 55%Late-arriving aircraft
- 38%Carrier
- 7%National Airspace System
55% 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 9,120 reported delay minutes here, that single category outweighs weather by 55 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 9,120 reported delay minutes.
The largest share of delay minutes, 38%, 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 3,420 of the 9,120 delay minutes reported here.
Cancellations run at 3.05%, against 1.81% nationally. That is roughly one flight in 30 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. 11.5% 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 68.7% on time across 393 flights, 7 points below 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 SLC to JFK
Put together: the delay figures matter less here than the 3.05% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 8pm–5am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 381 completed flights over 12 months sit behind that.
Related
Where to go next
- SLC to JFK, every carrier
- JetBlue on JFK to SLC, the return leg
- Delta Air Lines on SLC to JFK83.5%
- JetBlue Airways network-wide record
- Salt Lake City International (SLC) delay statistics
- John F. Kennedy International (JFK) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.