Which airline is most reliable for LAS (Las Vegas) to DCA (Washington)?

The most reliable airline on the LAS to DCA route is American Airlines, with an on-time arrival rate of 81%.

How often are flights delayed from LAS to DCA?

About 22% of flights from LAS to DCA experience delays. 78% arrive on time.

What's the average delay on LAS to DCA flights?

When flights from LAS to DCA are delayed, the average delay is approximately 82 minutes.

Is a short connection safe after a LAS to DCA flight?

With 78% of LAS to DCA flights arriving on time and an average delay of 82 minutes when late, a connection under 60 minutes at DCA is risky. We recommend at least 75-90 minutes for domestic connections after this route.

LAS → DCA

LAS (Las Vegas) to DCA (Washington)

LAS (Las Vegas) to DCA (Washington) flights arrive on time 78% of the time. The most reliable airline on this route is American Airlines at 81%. The average delay is 82 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated May 2026.

LAS → DCA on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

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 airline (crew, maintenance, or boarding).

Accurate?

American Airlines edges out Southwest Airlines on this route — 81% vs 69% on time.

Airline Comparison

American Airlines leads at 81% on time; Southwest Airlines trails at 69%.

Accurate?

Good to know

Departing from LAS

77% on time

Expect ~17 min sitting on the taxiway after your gate pushes back. LAS has long runway queues.

TSA is currently ~12 min. Best time: 4 AM (about 5 min).

More about LAS →

Arriving at DCA

79% on time

When flights into DCA are late, the average delay is 74 minutes. Build buffer if you have ground plans.

If connecting at DCA: TSA is ~15 min right now. Allow at least 60 minutes for a domestic connection.

DCA has a 2.6% cancellation rate — keep the airline app handy for rebooking.

More about DCA →Connection times at DCA →

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LAS Airport DCA Airport

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Data last updated May 2026. Source: Bureau of Transportation Statistics.