Raleigh/Durham (RDU) to Las Vegas (LAS): On-Time Performance
Data through July 2026
Raleigh/Durham (RDU) to Las Vegas (LAS) effectively runs on two schedules. In October 2024, 96% of arrivals were on time; in October 2025 that fell to 73% — a 23-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 1.7
- last 12 months
- Duration
- 5h 3m
- scheduled
- Distance
- 2,026 mi
Best airline from RDU to LAS
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 89% | 6 min | 1.2% | 694 |
| Southwest Airlines | 78% | 11 min | 0.3% | 617 |
Monthly on-time trend
Best time to fly from RDU to LAS
Aim for departures around 9 a.m. (94% on-time); avoid 4 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 9 min |
| Tuesdaybest | 89% | 7 min |
| Wednesday | 85% | 7 min |
| Thursday | 84% | 8 min |
| Friday | 79% | 12 min |
| Saturday | 81% | 10 min |
| Sunday | 82% | 9 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations38%
- National airspace system23%
- Weather1%
- Security1%
Frequently asked questions
- How often are flights from RDU to LAS delayed?
- 17% of RDU–LAS 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 9 minutes.
- Which airline is most reliable from RDU to LAS?
- Delta Air Lines has the best on-time record on this route at 89%, based on 694 flights. 2 airlines flew RDU–LAS frequently enough to compare in this period.
- What is the best time of day to fly from RDU to LAS?
- Departures around 9 a.m. have the best record (94% on-time), while departures around 4 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from RDU to LAS?
- The scheduled RDU–LAS flight time averages 5h 3m over 2,026 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are RDU to LAS flights cancelled?
- 0.8% 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 RDU to LAS?
- October 2025 was the roughest month in this dataset, with only 73% of arrivals on time. The best was October 2024 at 96%. If your dates are flexible, that 23-point gap is worth planning around.
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Based on 1,366 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.