DCA (Washington) to LAS (Las Vegas) flights arrive on time 78% of the time. The most reliable airline on this route is American Airlines at 90%. The average delay is 56 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.DCA → LAS
DCA (Washington) to LAS (Las Vegas)
DCA → LAS 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 the incoming plane arriving late.
Accurate?
American Airlines is significantly more reliable on this route at 90% on time vs Southwest Airlines at 48%.
Airline Comparison
American Airlines leads at 90% on time; Southwest Airlines trails at 48%.
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 ~5 min. Best time: 4 AM (about 5 min).
DCA cancels 2.6% of flights — higher than average. Have a backup plan.
Arriving at LAS
77% on timeWhen flights into LAS are late, the average delay is 62 minutes. Build buffer if you have ground plans.
If connecting at LAS: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what American Airlines owes you — refund rights, action plan, complaint email. Free.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.