Flight Check

Best Airline: ATL to RDU

Atlanta to Raleigh — airline reliability comparison

Delta Air Lines is the most reliable airline on the ATL to RDU route with a 83% on-time rate, compared to Frontier Airlines at 66%. Based on 12,680 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 Lines83%
Southwest Airlines81%
Frontier Airlines66%

ATL to RDU Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest83%0.8%55m12,680
Southwest AirlinesWN81%0.5%52m2,120
Frontier AirlinesF9Worst66%2.3%69m1,638

Route Overview

80%
Overall On-Time
58m
Avg Delay
0.9%
Cancel Rate
16,455
Total Flights
ATL to RDU Route DetailsReturn: RDU to ATL
ATL AirportRDU Airport

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