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

Washington, DC (IAD) to Dallas/Fort Worth, TX (DFW) flight delay odds

74.7% of 1,928 official scheduled IAD-to-DFW flights arrived on time; 15.3% arrived at least 30 minutes late and 2.2% 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 SIGNALGenerally reliable
74.7%arrived on time
15.3%30+ min late
2.2%cancelled
1,928scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.2%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+12.5 mincompleted flights

Which departure time was most reliable for IAD to DFW?

Among qualifying IAD-to-DFW departure window results, Afternoon had the highest on-time rate: 82.2% of 433 flights. Evening was lowest at 63.1% across 715 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning59080.8%9.8%2.7%
Late morning18482.1%10.9%2.7%
Afternoon43382.2%12.7%0.9%
Evening71563.1%22.5%2.5%

Which weekday was most reliable for IAD to DFW?

Among qualifying IAD-to-DFW weekday results, Tuesday had the highest on-time rate: 77.5% of 249 flights. Sunday was lowest at 69.6% across 286 flights.

DayFlightsOn time30+ minCancelled
Monday31075.8%15.8%1.6%
Tuesday24977.5%10.0%2.4%
Wednesday23376.4%15.0%0.4%
Thursday29777.4%12.5%1.7%
Friday30576.1%14.8%2.3%
Saturday24869.8%22.2%1.6%
Sunday28669.6%17.1%5.2%

Which airline was most reliable for IAD to DFW?

Among qualifying IAD-to-DFW airline results, United Airlines had the highest on-time rate: 78.4% of 914 flights. American Airlines was lowest at 70.0% across 844 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines91478.4%13.3%0.8%
American Airlines84470.0%17.7%3.7%
Frontier Airlines16178.3%13.7%3.1%
Republic Airways966.7%22.2%0.0%

Which month was most reliable for IAD to DFW?

Among qualifying IAD-to-DFW month results, February 2026 had the highest on-time rate: 85.7% of 140 flights. July 2025 was lowest at 63.0% across 173 flights.

MonthFlightsOn time30+ minCancelled
July 202517363.0%23.1%3.5%
August 202516674.7%12.7%3.6%
September 202518582.2%10.3%1.1%
October 202517382.7%10.4%0.6%
November 202514376.2%14.7%0.7%
December 202513869.6%19.6%0.0%
January 202613876.8%10.1%10.9%
February 202614085.7%10.7%0.0%
March 202614977.2%14.8%2.0%
April 202615275.0%12.5%0.7%
May 202617572.0%17.1%1.7%
June 202619664.3%25.0%2.6%

What drove IAD to DFW delay minutes?

Airline was the largest recorded IAD-to-DFW delay category, accounting for 39.1% of 44,358 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.1%
Late aircraft38.1%
National airspace16.6%
Weather6.1%
Security0.1%
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.