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

The most reliable airline on the DCA to LAS route is American Airlines, with an on-time arrival rate of 89%.

How often are flights delayed from DCA to LAS?

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

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

When flights from DCA to LAS are delayed, the average delay is approximately 57 minutes.

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

With 78% of DCA to LAS flights arriving on time and an average delay of 57 minutes when late, a connection under 60 minutes at LAS is risky. We recommend at least 75-90 minutes for domestic connections after this route.

DCA → LAS

DCA (Washington) to LAS (Las Vegas)

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 89%. The average delay is 57 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated October 2026.

DCA → LAS 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 is significantly more reliable on this route at 89% on time vs Southwest Airlines at 50%.

Airline Comparison

American Airlines leads at 89% on time; Southwest Airlines trails at 50%.

Accurate?

Good to know

Departing from DCA

77% on time

Expect ~21 min sitting on the taxiway after your gate pushes back. DCA has long runway queues.

TSA is currently ~20 min. Best time: 4 AM (about 5 min).

DCA cancels 2.7% of flights — higher than average. Have a backup plan.

More about DCA →

Arriving at LAS

78% on time

When flights into LAS are late, the average delay is 64 minutes. Build buffer if you have ground plans.

If connecting at LAS: TSA is ~25 min right now. Allow at least 60 minutes for a domestic connection.

More about LAS →Connection times at LAS →

Flight cancelled or delayed?

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Flying out of DCA? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

DCA Airport LAS Airport

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