DCA (Washington) to DEN (Denver) flights arrive on time 79% of the time. The most reliable airline on this route is Frontier Airlines at 80%. The average delay is 98 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated April 2026.DCA → DEN
DCA (Washington) to DEN (Denver)
DCA → DEN on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Frontier Airlines edges out United Airlines on this route — 80% vs 75% on time.
Airline Comparison
Frontier Airlines leads at 80% on time; United Airlines trails at 75%.
Accurate?
Good to know
Departing from DCA
79% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. DCA has long runway queues.
TSA is currently ~21 min. Best time: 4 AM (about 5 min).
DCA cancels 2.6% of flights — higher than average. Have a backup plan.
Arriving at DEN
78% on timeWhen flights into DEN are late, the average delay is 67 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~25 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Data last updated April 2026. Source: Bureau of Transportation Statistics.