Flight Check

Best Airline: ATL to SFO

Atlanta to San Francisco — airline reliability comparison

Delta Air Lines is the most reliable airline on the ATL to SFO route with a 75% on-time rate, compared to Frontier Airlines at 58%. Based on 8,422 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 Lines75%
United Airlines73%
Frontier Airlines58%

ATL to SFO Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest75%0.7%54m8,422
United AirlinesUA73%1.0%72m2,120
Frontier AirlinesF9Worst58%2.1%78m1,059

Route Overview

73%
Overall On-Time
62m
Avg Delay
0.9%
Cancel Rate
11,621
Total Flights
ATL to SFO Route DetailsReturn: SFO to ATL
ATL AirportSFO Airport

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