Which airline is most reliable for BWI (Baltimore) to CHS (Charleston)?

The most reliable airline on the BWI to CHS route is Southwest Airlines, with an on-time arrival rate of 77%.

How often are flights delayed from BWI to CHS?

About 23% of flights from BWI to CHS experience delays. 77% arrive on time.

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

When flights from BWI to CHS are delayed, the average delay is approximately 51 minutes.

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

With 77% of BWI to CHS flights arriving on time and an average delay of 51 minutes when late, a connection under 60 minutes at CHS is risky. We recommend at least 75-90 minutes for domestic connections after this route.

Is BWI (Baltimore) to CHS (Charleston) usually delayed?

BWI to CHS flights are moderately reliable at 77% on time. About 23% of flights experience delays averaging 51 minutes. Delays on this route are most often caused by late incoming aircraft.

What airline is most reliable on BWI (Baltimore) to CHS (Charleston)?

Southwest Airlines is the most reliable airline flying BWI to CHS, with 77% of flights arriving on time.

What's the best month to fly BWI (Baltimore) to CHS (Charleston)?

The best month to fly BWI to CHS is February, when 88% of flights arrive on time. The worst month is July at 63% on time. If your schedule is flexible, flying in February gives you the best odds of an on-time arrival.

BWI → CHS

BWI (Baltimore) to CHS (Charleston)

BWI (Baltimore) to CHS (Charleston) flights arrive on time 77% of the time. The most reliable airline on this route is Southwest Airlines at 77%. The average delay is 51 minutes. Delays on this route are most often caused by late incoming aircraft.

Source: Bureau of Transportation Statistics. Updated November 2026.

BWI → CHS on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 77% of flights arrive on schedule.

Delays on this route are most often caused by late incoming aircraft.

Accurate?

Best & worst months to fly BWI → CHS

Best month

February

88% on time

Worst month

July

63% on time

Feb

88%

Nov

84%

Sep

82%

Mar

80%

Oct

79%

Apr

78%

Jan

78%

Dec

77%

Aug

76%

May

76%

Jun

73%

Jul

63%

Good to know

Departing from BWI

79% on time

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

More about BWI →

Arriving at CHS

80% on time

When flights into CHS are late, the average delay is 75 minutes. Build buffer if you have ground plans.

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

More about CHS →Connection times at CHS →

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