Which airline is most reliable for ATL (Atlanta) to RDU (Raleigh)?

The most reliable airline on the ATL to RDU route is Southwest Airlines, with an on-time arrival rate of 84%.

How often are flights delayed from ATL to RDU?

About 19% of flights from ATL to RDU experience delays. 81% arrive on time.

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

When flights from ATL to RDU are delayed, the average delay is approximately 61 minutes.

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

With 81% of ATL to RDU flights arriving on time and an average delay of 61 minutes when late, a connection under 60 minutes at RDU is risky. We recommend at least 75-90 minutes for domestic connections after this route.

ATL → RDU

ATL (Atlanta) to RDU (Raleigh)

ATL (Atlanta) to RDU (Raleigh) flights arrive on time 81% of the time. The most reliable airline on this route is Southwest Airlines at 84%. The average delay is 61 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

ATL → RDU on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

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This route is on time most of the time. About 81% 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 84% on time vs Frontier Airlines at 65%.

Airline Comparison

Southwest Airlines leads at 84% on time; Frontier Airlines trails at 65%.

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 ~27 min. Best time: 4 AM (about 5 min).

More about ATL →

Arriving at RDU

79% on time

When flights into RDU are late, the average delay is 73 minutes. Build buffer if you have ground plans.

If connecting at RDU: TSA is ~13 min right now. Allow at least 60 minutes for a domestic connection.

More about RDU →Connection times at RDU →

Flight cancelled or delayed?

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ATL Airport RDU Airport

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