Flight Check

Best Airline: PIT to ATL

Pittsburgh to Atlanta — airline reliability comparison

Delta Air Lines is the most reliable airline on the PIT to ATL route with a 89% on-time rate, compared to Frontier Airlines at 48%. Based on 8,391 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 Lines89%
Southwest Airlines87%
Frontier Airlines48%

PIT to ATL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest89%1.3%81m8,391
Southwest AirlinesWN87%0.3%47m1,537
Frontier AirlinesF9Worst48%4.6%77m47

Route Overview

89%
Overall On-Time
70m
Avg Delay
1.2%
Cancel Rate
9,985
Total Flights
PIT to ATL Route DetailsReturn: ATL to PIT
PIT AirportATL Airport

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