Which airline is most reliable for CHS (Charleston) to DCA (Washington)?

The most reliable airline on the CHS to DCA route is null, with an on-time arrival rate of 90%.

How often are flights delayed from CHS to DCA?

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

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

When flights from CHS to DCA are delayed, the average delay is approximately 95 minutes.

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

With 78% of CHS to DCA flights arriving on time and an average delay of 95 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.

Is CHS (Charleston) to DCA (Washington) usually delayed?

CHS to DCA flights are moderately reliable at 78% on time. About 22% of flights experience delays averaging 95 minutes. Delays on this route are most often caused by late incoming aircraft.

What airline is most reliable on CHS (Charleston) to DCA (Washington)?

null is the most reliable airline flying CHS to DCA, with 90% of flights arriving on time. The least reliable is PSA Airlines at 76%.

What's the best month to fly CHS (Charleston) to DCA (Washington)?

The best month to fly CHS to DCA is October, when 86% of flights arrive on time. The worst month is July at 65% on time. If your schedule is flexible, flying in October gives you the best odds of an on-time arrival.

CHS → DCA

CHS (Charleston) to DCA (Washington)

CHS (Charleston) to DCA (Washington) flights arrive on time 78% of the time. The most reliable airline on this route is null at 90%. The average delay is 95 minutes. Delays on this route are most often caused by late incoming aircraft.

Source: Bureau of Transportation Statistics. Updated November 2026.

CHS → 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 late incoming aircraft.

Accurate?

null edges out PSA Airlines on this route — 90% vs 76% on time.

Airline Comparison

leads at 90% on time; PSA Airlines trails at 76%.

Accurate?

Best & worst months to fly CHS → DCA

Best month

October

86% on time

Worst month

July

65% on time

Oct

86%

Sep

86%

Nov

85%

Apr

80%

Aug

78%

Jan

78%

Dec

78%

Mar

77%

Jun

76%

May

76%

Feb

76%

Jul

65%

Good to know

Departing from CHS

80% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. CHS has long runway queues.

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

More about CHS →

Arriving at DCA

77% on time

When flights into DCA are late, the average delay is 78 minutes. Build buffer if you have ground plans.

If connecting at DCA: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

DCA has a 2.7% cancellation rate — keep the airline app handy for rebooking.

More about DCA →Connection times at DCA →

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