New York (JFK) to Salt Lake City (SLC): On-Time Performance
Data through July 2026
When you fly JFK to SLC matters as much as anything else about the booking: the route swung from 94% on-time in October 2024 to just 67% in August 2024. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 71%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 5.3
- last 12 months
- Duration
- 5h 25m
- scheduled
- Distance
- 1,990 mi
Best airline from JFK to SLC
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 81% | 13 min | 1.2% | 3,193 |
| JetBlue Airways | 70% | 20 min | 2.2% | 851 |
Monthly on-time trend
Best time to fly from JFK to SLC
Aim for departures around 12 p.m. (91% on-time); avoid 8 a.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 12 min |
| Tuesdaybest | 84% | 13 min |
| Wednesday | 80% | 11 min |
| Thursday | 77% | 17 min |
| Friday | 79% | 13 min |
| Saturday | 75% | 17 min |
| Sunday | 75% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft20%
- Airline operations38%
- National airspace system37%
- Weather5%
Frequently asked questions
- How often are flights from JFK to SLC delayed?
- 21% of JFK–SLC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from JFK to SLC?
- Delta Air Lines has the best on-time record on this route at 81%, based on 3,193 flights. 2 airlines flew JFK–SLC frequently enough to compare in this period.
- What is the best time of day to fly from JFK to SLC?
- Departures around 12 p.m. have the best record (91% on-time), while departures around 8 a.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from JFK to SLC?
- The scheduled JFK–SLC flight time averages 5h 25m over 1,990 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are JFK to SLC flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from JFK to SLC?
- August 2024 was the roughest month in this dataset, with only 67% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 4,044 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.