DEN (Denver) to LGA (New York) flights arrive on time 74% of the time. The most reliable airline on this route is Delta Air Lines at 80%. The average delay is 68 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated October 2026.DEN → LGA
DEN (Denver) to LGA (New York)
DEN → LGA on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines is significantly more reliable on this route at 80% on time vs Frontier Airlines at 62%.
Airline Comparison
Delta Air Lines leads at 80% on time; Frontier Airlines trails at 62%.
Accurate?
Good to know
Departing from DEN
78% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. DEN has long runway queues.
TSA is currently ~21 min. Best time: 4 AM (about 5 min).
Arriving at LGA
79% on timeWhen flights into LGA are late, the average delay is 77 minutes. Build buffer if you have ground plans.
If connecting at LGA: TSA is ~39 min right now. Allow at least 60 minutes for a domestic connection.
LGA has a 3.1% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of DEN? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.