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Route Reliability

Jacksonville → Washington

JAX–IAD · 631 miles · Jacksonville International Airport to Washington Dulles International Airport

90
Nerd Approved
WanderNerd Reliability Score
87%
Arrive within 15 minutes
2 min
Average arrival delay
1.1%
Cancelled
1,010
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines89% on time · 950 flights
  • Allegiant Air53% on time · 60 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

JAX–IAD flights departing between 9 AM–12 PM arrived on time 92% of the time, versus 42% between 3–6 PM.

Monday is the weak spot.

JAX–IAD flights arrived on time 94% of the time on Saturdays. On Mondays: 79%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon79%(166 flights)
  • Tue92%(126 flights)
  • Wed89%(129 flights)
  • Thu90%(136 flights)
  • Fri82%(167 flights)
  • Sat94%(138 flights)
  • Sun88%(136 flights)
On-time by departure window
  • 9 AM–12 PM92%(356 flights)
  • 12–3 PM91%(347 flights)
  • 3–6 PM42%(36 flights)
  • 6–9 PM82%(259 flights)
On-time trend by month
89%
May

Jun 77% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%98
July 202566%95
August 202587%97
September 202596%89
October 202598%93
November 202591%92
December 202588%83
January 202692%52
February 202692%52
March 202684%94
April 202696%68
May 202689%85

Same trip, other airports

Keep nerding

Based on 1,010 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.