Salt Lake City (SLC) to Raleigh/Durham (RDU): On-Time Performance
Data through July 2026
When you fly SLC to RDU matters as much as anything else about the booking: the route swung from 100% on-time in January 2026 to just 65% in July 2024. Across the full period the route averages 84% on-time against a national 78%.
- On-time
- 84%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.5%
- Flights/day
- 1.0
- last 12 months
- Duration
- 4h 3m
- scheduled
- Distance
- 1,824 mi
Monthly on-time trend
Best time to fly from SLC to RDU
Aim for departures around 10 a.m. (90% on-time); avoid 11 p.m. departures (78%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 7 min |
| Tuesdaybest | 89% | 7 min |
| Wednesday | 83% | 12 min |
| Thursday | 86% | 16 min |
| Friday | 84% | 11 min |
| Saturday | 81% | 11 min |
| Sunday | 82% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft26%
- Airline operations54%
- National airspace system15%
- Weather5%
Frequently asked questions
- How often are flights from SLC to RDU delayed?
- 16% of SLC–RDU 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 11 minutes.
- What is the best time of day to fly from SLC to RDU?
- Departures around 10 a.m. have the best record (90% on-time), while departures around 11 p.m. have the worst (78%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to RDU?
- The scheduled SLC–RDU flight time averages 4h 3m over 1,824 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
- How often are SLC to RDU flights cancelled?
- 1.5% 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 SLC to RDU?
- July 2024 was the roughest month in this dataset, with only 65% of arrivals on time. The best was January 2026 at 100%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 866 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.