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Route Reliability

Washington → Orlando

IAD–MCO · 758 miles · Washington Dulles International Airport to Orlando International Airport

85
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
5 min
Average arrival delay
0.8%
Cancelled
2,204
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines83%1,932 flights
  2. 2.Frontier Airlines71%272 flights

What the data says

Morning flights do better here.

IAD–MCO flights departing between 9 AM–12 PM arrived on time 90% of the time, versus 72% between 3–6 PM.

Sunday scaries are real for this one.

IAD–MCO flights arrived on time 90% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.

United Airlines runs this route best.

United Airlines arrived on time 83% of the time on this route; Frontier Airlines managed 71%.

Ticking up lately.

IAD–MCO flights arrived on time 88% of the time over the last three months in the data, compared with 82% 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
  • Mon80%(325 flights)
  • Tue90%(267 flights)
  • Wed87%(276 flights)
  • Thu82%(323 flights)
  • Fri78%(335 flights)
  • Sat84%(322 flights)
  • Sun71%(332 flights)
On-time by departure window
  • 6–9 AM88%(359 flights)
  • 9 AM–12 PM90%(380 flights)
  • 12–3 PM82%(427 flights)
  • 3–6 PM72%(492 flights)
  • 6–9 PM76%(134 flights)
  • 9 PM–12 AM79%(388 flights)
On-time trend by month
87%
May

Jun 72% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%197
July 202570%173
August 202571%176
September 202591%170
October 202584%177
November 202578%169
December 202577%172
January 202683%178
February 202685%170
March 202685%191
April 202691%210
May 202687%197

Same trip, other airports

Keep nerding

Based on 2,204 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.