Flight Check

Best Airline: RDU to LAS

Raleigh to Las Vegas — airline reliability comparison

Delta Air Lines is the most reliable airline on the RDU to LAS route with a 88% on-time rate, compared to Frontier Airlines at 63%. Based on 1,173 flights tracked.

This route involves high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines88%
Southwest Airlines79%
Frontier Airlines63%

RDU to LAS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest88%0.9%49m1,173
Southwest AirlinesWN79%0.3%45m601
Frontier AirlinesF9Worst63%1.7%62m273

Route Overview

82%
Overall On-Time
52m
Avg Delay
0.8%
Cancel Rate
2,121
Total Flights
RDU to LAS Route DetailsReturn: LAS to RDU
RDU AirportLAS Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.