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Route Reliability

Washington → Fort Lauderdale

IAD–FLL · 901 miles · Washington Dulles International Airport to Fort Lauderdale–Hollywood International Airport

88
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min
Average arrival delay
0.5%
Cancelled
742
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines84% on time · 731 flights
  • Frontier Airlines46% on time · 11 flights

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

What the data says

Morning-you made the right choice.

IAD–FLL flights departing between 6–9 AM arrived on time 90% of the time, versus 77% between 3–6 PM.

Friday is doing you no favors.

IAD–FLL flights arrived on time 90% of the time on Tuesdays. On Fridays: 78%.

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
  • Mon86%(108 flights)
  • Tue90%(90 flights)
  • Wed87%(90 flights)
  • Thu83%(110 flights)
  • Fri78%(111 flights)
  • Sat82%(113 flights)
  • Sun81%(114 flights)
On-time by departure window
  • 6–9 AM90%(258 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM82%(140 flights)
  • 3–6 PM77%(196 flights)
  • 6–9 PM82%(141 flights)
On-time trend by month
84%
May

Jun 77% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%60
July 202575%60
August 202588%49
September 202590%30
October 202587%37
November 202587%60
December 202576%76
January 202684%57
February 202691%64
March 202682%83
April 202689%80
May 202684%80

Same trip, other airports

Keep nerding

Based on 742 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.