RDU to LAS flight delays
Raleigh/Durham, NC (RDU) Las Vegas, NV (LAS) · 2,026 miles
683 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
82.72%
Arrived on time
Within 15 minutes of schedule
0.88%
Cancelled
Share of scheduled flights
47 min
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Delta Air Lines arrived on time 14.4 points more often than Southwest Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
Flights from Raleigh/Durham to Las Vegas keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over January 2025 – August 2026, Delta Air Lines arrived on time most often on RDU to LAS. Southwest Airlines was late most often. Flights ran closest to schedule in April and worst in June.
Every airline on RDU to LAS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 333 | 90.3% | 0.9% | 48 min | A |
| Southwest Airlines | 322 | 75.94% | 0.62% | 44 min | C |
| Frontier Airlines | 28 | 70.37% | 3.57% | 71 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LAS to RDU Las Vegas back to Raleigh/Durham 80.36% on time COther routes from Raleigh/Durham
Common questions
Are flights from Raleigh/Durham to Las Vegas usually delayed?
82.72% of flights on the RDU to LAS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Raleigh/Durham to Las Vegas?
Delta Air Lines, at 90.3% on time across 333 flights. The least punctual on the route was Southwest Airlines at 75.94%.
How often are RDU to LAS flights cancelled?
0.88% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Raleigh/Durham to Las Vegas?
April, when 90% of flights arrived on time. The worst was October at 73.3%.
When RDU to LAS flights are late, how late are they?
About 47 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on RDU to LAS during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →