Which airline is most reliable for ATL (Atlanta) to BWI (Baltimore)?

The most reliable airline on the ATL to BWI route is Southwest Airlines, with an on-time arrival rate of 80%.

How often are flights delayed from ATL to BWI?

About 24% of flights from ATL to BWI experience delays. 76% arrive on time.

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

When flights from ATL to BWI are delayed, the average delay is approximately 64 minutes.

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

With 76% of ATL to BWI flights arriving on time and an average delay of 64 minutes when late, a connection under 60 minutes at BWI is risky. We recommend at least 75-90 minutes for domestic connections after this route.

ATL → BWI

ATL (Atlanta) to BWI (Baltimore)

ATL (Atlanta) to BWI (Baltimore) flights arrive on time 76% of the time. The most reliable airline on this route is Southwest Airlines at 80%. The average delay is 64 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated July 2026.

ATL → BWI on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

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This route is on time most of the time. About 76% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Southwest Airlines is significantly more reliable on this route at 80% on time vs Frontier Airlines at 63%.

Airline Comparison

Southwest Airlines leads at 80% on time; Frontier Airlines trails at 63%.

Accurate?

Good to know

Departing from ATL

80% on time

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

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

More about ATL →

Arriving at BWI

80% on time

When flights into BWI are late, the average delay is 61 minutes. Build buffer if you have ground plans.

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

More about BWI →Connection times at BWI →

Flight cancelled or delayed?

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ATL Airport BWI Airport

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