ATL (Atlanta) to DEN (Denver) flights arrive on time 78% of the time. The most reliable airline on this route is Alaska Airlines at 80%. The average delay is 40 minutes. Delays on this route are most often caused by weather.
Source: Bureau of Transportation Statistics. Updated March 2026.ATL → DEN
ATL (Atlanta) to DEN (Denver)
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ATL → DEN on-time performance by month
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This route is on time most of the time. About 78% of flights arrive on schedule.
Delays on this route are most often caused by weather.
Airlines are roughly equal on this route — Alaska Airlines leads slightly at 80% vs United Airlines at 78%.
Airline Comparison
Alaska Airlines leads at 80% on time; United Airlines trails at 78%.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.