Historical on-time performance
New York to Salt Lake City
1,990 miData through Dec 2025Source: US DOT · BTS
Flights on JFK–SLC arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 1,951 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time80%Medianon timep9030 minCancel0.5%Flights1,535
- JetBlue AirwaysOn-time68%Medianon timep9060 minCancel1.7%Flights416
Why flights run late
Delay causes
- Airline36%
- Weather4%
- Air traffic (NAS)38%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly JFK → SLC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 1,325 flights
- Afternoons83% on time · p90 25 min · 880 flights
- Middays81% on time · p90 35 min · 1,534 flights
- Evenings71% on time · p90 60 min · 1,798 flights
- Overnights65% on time · p90 85 min · 460 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Tuesdays82% on time · p90 30 min · 857 flights
- Wednesdays81% on time · p90 30 min · 856 flights
- Mondays81% on time · p90 35 min · 862 flights
- Fridays80% on time · p90 35 min · 853 flights
- Thursdays79% on time · p90 45 min · 849 flights
- Saturdays75% on time · p90 55 min · 859 flights
- Sundays74% on time · p90 45 min · 861 flights
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