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Route Reliability

Washington → Fort Myers

IAD–RSW · 891 miles · Washington Dulles International Airport to Southwest Florida International Airport

93
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
2 min
Average arrival delay
0.6%
Cancelled
468
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 89% of the time across 468 flights. No comparison to make.

What the data says

Morning-you made the right choice.

IAD–RSW flights departing between 6–9 AM arrived on time 94% of the time, versus 83% between 12–3 PM.

Mondays have been rough.

IAD–RSW flights arrived on time 98% of the time on Tuesdays and just 82% on Mondays. That gap is worth planning around.

Ticking up lately.

IAD–RSW flights arrived on time 91% of the time over the last three months in the data, compared with 86% in the three months before that.

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
  • Mon82%(66 flights)
  • Tue98%(59 flights)
  • Wed91%(66 flights)
  • Thu93%(69 flights)
  • Fri88%(68 flights)
  • Sat85%(68 flights)
  • Sun84%(68 flights)
On-time by departure window
  • 6–9 AM94%(109 flights)
  • 9 AM–12 PM93%(120 flights)
  • 12–3 PM83%(136 flights)
  • 3–6 PM85%(99 flights)
On-time trend by month
89%
May

Jun 90% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 2025100%31
August 202597%31
September 202587%30
October 202579%28
November 202577%30
December 202584%45
January 202689%35
February 202686%42
March 202690%57
April 202693%60
May 202689%45

Same trip, other airports

Keep nerding

Based on 468 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.