Best Time to Fly PIT to SLC: On-Time Stats by Hour & Airline
Pittsburgh International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.9% of Pittsburgh (PIT) to Salt Lake City (SLC) flights arrived on time (363 scheduled flights). That is 2.8 points below the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (82% on time) and December the worst month (47%).
The cancellation rate was 1.1% (US average 1.8%).
PIT 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 |
|---|---|---|---|---|
| Delta Air Lines | 74.9% | 40 min | 1.1% | 363 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PIT to SLC
On-time arrival % by scheduled departure hour (local time), 614 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | Limited data | 1 | |
| 5pm–6pm | 73.4% | 0.8% | 612 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PIT 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) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 29 | ||
| Summer peak (Jun 15 - Aug 15) | 72.9% | -2.9 pts | 0.9% | 109 |
| All other days | 75.8% | — | 0.7% | 462 |
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).