IAD (Washington) to JAX (Jacksonville) flights arrive on time 78% of the time. The most reliable airline on this route is Republic Airways at 83%. The average delay is 74 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated May 2026.IAD → JAX
IAD (Washington) to JAX (Jacksonville)
IAD → JAX on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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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 incoming plane arriving late.
Accurate?
Republic Airways is significantly more reliable on this route at 83% on time vs Allegiant Air at 22%.
Airline Comparison
Republic Airways leads at 83% on time; Allegiant Air trails at 22%.
Accurate?
Good to know
Departing from IAD
83% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. IAD has long runway queues.
TSA is currently ~8 min. Best time: 4 AM (about 5 min).
Arriving at JAX
79% on timeWhen flights into JAX are late, the average delay is 72 minutes. Build buffer if you have ground plans.
If connecting at JAX: TSA is ~16 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.