BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
IAD→JAX

Washington, DC (IAD) to Jacksonville, FL (JAX) flight delay odds

82.0% of 772 official scheduled IAD-to-JAX flights arrived on time; 11.3% arrived at least 30 minutes late and 1.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
82.0%arrived on time
11.3%30+ min late
1.3%cancelled
772scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.5%all scheduled flights
120+ minutes late3.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+1.6 mincompleted flights

Which departure time was most reliable for IAD to JAX?

Among qualifying IAD-to-JAX departure window results, Early morning had the highest on-time rate: 88.7% of 212 flights. Evening was lowest at 77.5% across 405 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning21288.7%7.5%0.5%
Late morning9384.9%7.5%2.2%
Afternoon6283.9%11.3%0.0%
Evening40577.5%14.1%1.7%

Which weekday was most reliable for IAD to JAX?

Among qualifying IAD-to-JAX weekday results, Wednesday had the highest on-time rate: 91.0% of 100 flights. Friday was lowest at 74.3% across 136 flights.

DayFlightsOn time30+ minCancelled
Monday13680.9%11.8%1.5%
Tuesday9981.8%9.1%1.0%
Wednesday10091.0%6.0%1.0%
Thursday10786.0%8.4%0.9%
Friday13674.3%17.6%0.7%
Saturday9183.5%9.9%1.1%
Sunday10379.6%13.6%2.9%

Which airline was most reliable for IAD to JAX?

Among qualifying IAD-to-JAX airline results, United Airlines had the highest on-time rate: 85.6% of 592 flights. Allegiant Air was lowest at 51.7% across 60 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines59285.6%10.0%0.7%
Republic Airways12079.2%7.5%5.0%
Allegiant Air6051.7%31.7%0.0%

Which month was most reliable for IAD to JAX?

Among qualifying IAD-to-JAX month results, October 2025 had the highest on-time rate: 90.3% of 62 flights. July 2025 was lowest at 61.5% across 65 flights.

MonthFlightsOn time30+ minCancelled
July 20256561.5%24.6%7.7%
August 20256382.5%7.9%1.6%
September 20255789.5%5.3%1.8%
October 20256290.3%6.5%0.0%
November 20255984.7%11.9%0.0%
December 20255180.4%13.7%0.0%
January 20265184.3%5.9%5.9%
February 20264989.8%8.2%0.0%
March 20269483.0%14.9%0.0%
April 20266886.8%4.4%0.0%
May 20268484.5%9.5%0.0%
June 20266969.6%18.8%0.0%

What drove IAD to JAX delay minutes?

Late aircraft was the largest recorded IAD-to-JAX delay category, accounting for 43.6% of 10,563 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.8%
Late aircraft43.6%
National airspace19.8%
Weather10.8%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.