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

Washington, DC (IAD) to Fort Lauderdale, FL (FLL) flight delay odds

82.2% of 760 official scheduled IAD-to-FLL flights arrived on time; 10.9% arrived at least 30 minutes late and 0.5% 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
82.2%arrived on time
10.9%30+ min late
0.5%cancelled
760scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late3.6%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+1.6 mincompleted flights

Which departure time was most reliable for IAD to FLL?

Among qualifying IAD-to-FLL departure window results, Early morning had the highest on-time rate: 88.4% of 249 flights. Afternoon was lowest at 78.8% across 146 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24988.4%4.8%0.4%
Afternoon14678.8%12.3%1.4%
Evening36479.4%14.6%0.3%

Which weekday was most reliable for IAD to FLL?

Among qualifying IAD-to-FLL weekday results, Tuesday had the highest on-time rate: 88.2% of 93 flights. Friday was lowest at 77.6% across 116 flights.

DayFlightsOn time30+ minCancelled
Monday11584.3%9.6%1.7%
Tuesday9388.2%5.4%0.0%
Wednesday9086.7%7.8%0.0%
Thursday11182.9%10.8%0.0%
Friday11677.6%11.2%0.0%
Saturday11779.5%13.7%0.0%
Sunday11878.8%16.1%1.7%

Which airline was most reliable for IAD to FLL?

Among qualifying IAD-to-FLL airline results, United Airlines had the highest on-time rate: 83.7% of 719 flights. Frontier Airlines was lowest at 56.1% across 41 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines71983.7%9.7%0.6%
Frontier Airlines4156.1%31.7%0.0%

Which month was most reliable for IAD to FLL?

Among qualifying IAD-to-FLL month results, September 2025 had the highest on-time rate: 90.0% of 30 flights. July 2025 was lowest at 72.1% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256172.1%18.0%1.6%
August 20254987.8%10.2%0.0%
September 20253090.0%6.7%0.0%
October 20253783.8%2.7%0.0%
November 20256086.7%6.7%0.0%
December 20257676.3%17.1%0.0%
January 20265979.7%8.5%3.4%
February 20266587.7%7.7%0.0%
March 20268481.0%11.9%1.2%
April 20268187.7%8.6%0.0%
May 20268083.8%12.5%0.0%
June 20267876.9%12.8%0.0%

What drove IAD to FLL delay minutes?

Late aircraft was the largest recorded IAD-to-FLL delay category, accounting for 38.2% of 8,957 BTS-attributed delay minutes during July 2025–June 2026.

Airline20.2%
Late aircraft38.2%
National airspace34.1%
Weather7.5%
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.