Carrier route record

B6SLC→JFK

JetBlue Airways · Salt Lake City to New York

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 SLC to JFK sits in the middle of the pack with a C−. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. 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 77.3%, 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.

On time

73.9%

Arrivals under 15 minutes late, of 372 completed flights

Avg delay

88 min

Across delayed arrivals only, not all flights

Cancelled

5.09%

National rate is 1.89%

Whole route

81.3%

Every carrier on SLC to JFK, 1,932 flights

These figures cover 393 flights between September 2025 and August 2026. Beyond the headline rate, 10.5% 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 SLC to JFK

JetBlue flew 393 of the 1,932 flights on SLC to JFK, about 20% of it. Its 73.9% on time is 7 points worse than the route as a whole, which runs 81.3%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 83.2% to JetBlue at 73.9%.

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.

On-time performance by carrier on SLC to JFK
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	1,539	83.2%	66 min	1.95%	B
JetBlue Airways (this page)	393	73.9%	88 min	5.09%	C−

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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 393 flights.

5am–8am—
8am–11am—
11am–2pm35 flights67.6%
2pm–5pm28 flights—
5pm–8pm3 flights—
8pm–5am327 flights75.8%

Scale runs 60% to 80%. 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 75.8% 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

Jul–Sep 202530 flights86.7%
Oct–Dec 202592 flights77.8%
Jan–Mar 2026118 flights69.4%
Apr–Jun 202691 flights82.2%
Jul–Sep 202662 flights54.9%

Scale runs 45% to 90%.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 73.9% on time across 393 flights.

JetBlue on SLC to JFK did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Jul–Sep 2026 at 54.9%, a swing of 32 points on roughly 79 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Monday is the strongest day at 80.8% on time and Thursday the weakest at 63.6%, a spread of 17 points.

Arrival by arrival

How late JetBlue on SLC to JFK runs when it is late

JetBlue on SLC to JFK often beats the schedule: 122 of 372 completed flights, 33%, arrived 15 minutes or more early. The 97 late arrivals split 24 under half an hour, 34 between 30 and 60 minutes, and 39 an hour or more.

15+ min early122 flights32.8%
Within 15 min153 flights41.1%
15–29 min late24 flights6.5%
30–59 min late34 flights9.1%
1–2 hours late18 flights4.8%
2+ hours late21 flights5.6%

Scale runs 0% to 100%.

Share of 372 completed flights by arrival against schedule.

26 of 120 late departures made up the time and arrived on time, 22% of them. Only 3 left on time and still arrived late.

The worst days

Worst days for JetBlue on SLC to JFK

The latest arrival of the period was on 3 August 2026, 19 hours 38 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of JetBlue on SLC to JFK in the period
Date	Arrived late by	Largest filed cause
3 August 2026	19 hours 38 minutes	Carrier
20 May 2026	16 hours 5 minutes	Carrier
14 February 2026	3 hours 59 minutes	Late-arriving aircraft
17 January 2026	3 hours 10 minutes	Carrier
24 February 2026	3 hours 7 minutes	National Airspace System

Delay causes

Why JetBlue runs late on this route

Late-arriving aircraft accounts for 51% of the 8,579 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
51%
Carrier
41%
National Airspace System
8%
Extreme weather
0%

51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,579 reported delay minutes here, that single category outweighs weather by 51 to one. The split is drawn from 8,579 reported delay minutes.

The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,491 of the 8,579 delay minutes reported here.

Cancellations run at 5.09%, against 1.89% 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

10.5% 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 67.6% on time across 393 flights, 6 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 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 SLC to JFK

Put together: the delay figures matter less here than the 5.09% 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. 372 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures