Flight Check

Best Airline: BUF to ATL

Buffalo to Atlanta — airline reliability comparison

Delta Air Lines is the most reliable airline on the BUF to ATL route with a 82% on-time rate, compared to Frontier Airlines at 64%. Based on 4,246 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 Lines82%
Frontier Airlines64%

BUF to ATL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest82%1.4%66m4,246
Frontier AirlinesF9Worst64%4.6%83m612

Route Overview

79%
Overall On-Time
69m
Avg Delay
1.7%
Cancel Rate
4,884
Total Flights
BUF to ATL Route DetailsReturn: ATL to BUF
BUF AirportATL Airport

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