Best Time to Fly EWR to SLC: On-Time Stats by Hour & Airline
Newark Liberty International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.8% of Newark (EWR) to Salt Lake City (SLC) flights arrived on time (1,337 scheduled flights). That is in line with the national average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 78.4%, while Delta Air Lines trailed at 77.3%.
September has been the best month (90% on time) and Saturday the weakest day of the week (71%).
2.1% of flights were cancelled, versus 1.8% nationally.
EWR to SLC 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 |
|---|---|---|---|---|
| United Airlines | 78.4% | 61 min | 1.9% | 615 |
| Delta Air Lines | 77.3% | 83 min | 2.2% | 722 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly EWR to SLC
On-time arrival % by scheduled departure hour (local time), 2,551 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 75.2% | 0.7% | 138 |
| 7am–8am | 81.7% | 0.7% | 950 |
| 8am–9am | 90.4% | 5.5% | 55 |
| 9am–10am | Limited data | 26 | |
| 10am–11am | 84.9% | 0.0% | 86 |
| 11am–12pm | 79.8% | 1.2% | 85 |
| 12pm–1pm | Limited data | 21 | |
| 3pm–4pm | 74.5% | 1.9% | 52 |
| 4pm–5pm | 60.5% | 4.4% | 45 |
| 5pm–6pm | 72.0% | 3.3% | 122 |
| 6pm–7pm | 70.9% | 2.5% | 563 |
| 7pm–8pm | 59.7% | 1.3% | 229 |
| 8pm–9pm | 68.4% | 2.8% | 179 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on EWR to SLC
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) | 78.4% | +2.4 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.7% | -6.3 pts | 4.4% | 114 |
| Summer peak (Jun 15 - Aug 15) | 72.0% | -4.0 pts | 3.7% | 378 |
| All other days | 76.0% | — | 1.2% | 2,022 |
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).