Delta Air Lines has an overall on-time arrival rate of 80%. The most common passenger complaint is flight_problems. Delta Air Lines ranks #1 out of 6 U.S. airlines for reliability.
Source: Bureau of Transportation Statistics. Updated March 2026.DL
Delta Air Lines
Lands on time
80%
When late
~41 min
Cancelled
2.0%
Flights tracked
92,108
Delta Air Lines is pretty reliable as airlines go. About 80% of their flights land on time. When they don't, you're usually waiting around 41 minutes. The biggest reason? carrier.
About 4.1 out of every 100k passengers file a formal complaint. The thing people complain about most: flight_problems.
Busiest Delta Air Lines routes
JFK → SFONew York – San Francisco
76%on time
ATL → MCOAtlanta – Orlando
80%on time
DFW → MCODallas – Orlando
80%on time
LAX → DFWLos Angeles – Dallas
79%on time
SEA → SFOSeattle – San Francisco
80%on time
SEA → LAXSeattle – Los Angeles
81%on time
SFO → ORDSan Francisco – Chicago
78%on time
JFK → LAXNew York – Los Angeles
78%on time
JFK → ATLNew York – Atlanta
77%on time
DFW → SFODallas – San Francisco
78%on time
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Data last updated March 2026. Source: Bureau of Transportation Statistics.