DCA (Washington) to DEN (Denver) flights arrive on time 79% of the time. The most reliable airline on this route is Frontier Airlines at 79%. The average delay is 88 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated July 2026.DCA → DEN
DCA (Washington) to DEN (Denver)
DCA → DEN on-time performance by month
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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?
Airlines are roughly equal on this route — Frontier Airlines leads slightly at 79% vs United Airlines at 77%.
Airline Comparison
Frontier Airlines leads at 79% on time; United Airlines trails at 77%.
Accurate?
Good to know
Departing from DCA
75% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. DCA has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
DCA cancels 3.2% of flights — higher than average. Have a backup plan.
Arriving at DEN
79% on timeWhen flights into DEN are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at DEN: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Frontier Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of DCA? 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 July 2026. Source: Bureau of Transportation Statistics.