Best Time to Fly SLC to JFK: On-Time Stats by Hour & Airline
Salt Lake City International → John F. Kennedy International
Data through July 2026 · Last updated October 18, 2026
1,931 flights were scheduled from Salt Lake City (SLC) to New York (JFK) in the last 12 months, and 82.6% of those that flew arrived on time, 5.0 points above the US average of 77.6%.
Among 2 airlines, Delta Air Lines led with 84.3% on time and JetBlue was last with 75.9%.
Over 24 months, Friday was the most reliable day (84% on time) and July the worst month (69%).
The cancellation rate was 2.3% (US average 1.8%).
SLC to JFK on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 84.3% | 67 min | 1.9% | 1,538 |
| JetBlue | 75.9% | 81 min | 3.8% | 393 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to JFK
On-time arrival % by scheduled departure hour (local time), 3,894 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 24 | |
| 7am–8am | 91.6% | 0.0% | 131 |
| 9am–10am | 84.8% | 1.1% | 714 |
| 10am–11am | Limited data | 16 | |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | 63.6% | 0.0% | 44 |
| 1pm–2pm | 80.9% | 2.9% | 205 |
| 2pm–3pm | 73.8% | 1.5% | 533 |
| 3pm–4pm | 65.0% | 0.0% | 60 |
| 5pm–6pm | 78.6% | 0.9% | 745 |
| 10pm–11pm | 75.1% | 3.5% | 226 |
| 11pm–12am | 82.7% | 1.6% | 1,195 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to JFK
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 82.5% | -0.0 pts | 1.6% | 64 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.1% | -2.5 pts | 2.6% | 191 |
| Summer peak (Jun 15 - Aug 15) | 70.1% | -12.4 pts | 3.2% | 620 |
| All other days | 82.6% | — | 1.0% | 3,019 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).