Historical on-time performance
Salt Lake City to Newark
1,968 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–EWR arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 1,247 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Delta Air LinesOn-time68%Medianon timep9050 minCancel1.3%Flights717
- United AirlinesOn-time72%Medianon timep9070 minCancel0.4%Flights530
Why flights run late
Delay causes
- Airline20%
- Weather5%
- Air traffic (NAS)56%
- Late aircraft20%
- 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 SLC → EWR
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 63% to 77% on time.
- Evenings77% on time · p90 40 min · 93 flights · limited
- Early mornings77% on time · p90 50 min · 369 flights
- Overnights74% on time · p90 35 min · 1,173 flights
- Mornings71% on time · p90 65 min · 97 flights · limited
- Middays70% on time · p90 65 min · 1,551 flights
- Afternoons63% on time · p90 85 min · 230 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.
- Tuesdays78% on time · p90 35 min · 493 flights
- Mondays75% on time · p90 45 min · 510 flights
- Wednesdays75% on time · p90 45 min · 492 flights
- Fridays71% on time · p90 60 min · 504 flights
- Thursdays69% on time · p90 65 min · 504 flights
- Saturdays68% on time · p90 60 min · 496 flights
- Sundays68% on time · p90 65 min · 514 flights
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