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

Washington, DC (IAD) to West Palm Beach/Palm Beach, FL (PBI) flight delay odds

79.9% of 334 official scheduled IAD-to-PBI flights arrived on time; 11.1% arrived at least 30 minutes late and 1.2% 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
79.9%arrived on time
11.1%30+ min late
1.2%cancelled
334scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.5%all scheduled flights
120+ minutes late3.6%all scheduled flights
Diverted0.6%did not reach as scheduled
Average arrival+5.4 mincompleted flights

Which departure time was most reliable for IAD to PBI?

Among qualifying IAD-to-PBI departure window results, Early morning had the highest on-time rate: 83.9% of 56 flights. Late morning was lowest at 74.2% across 93 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning5683.9%8.9%3.6%
Late morning9374.2%10.8%1.1%
Evening15481.8%12.3%0.6%

Which weekday was most reliable for IAD to PBI?

Among qualifying IAD-to-PBI weekday results, Wednesday had the highest on-time rate: 87.2% of 47 flights. Monday was lowest at 70.8% across 48 flights.

DayFlightsOn time30+ minCancelled
Monday4870.8%8.3%4.2%
Tuesday4785.1%8.5%2.1%
Wednesday4787.2%10.6%0.0%
Thursday4877.1%14.6%0.0%
Friday4877.1%16.7%0.0%
Saturday4883.3%6.2%0.0%
Sunday4879.2%12.5%2.1%

Which airline was most reliable for IAD to PBI?

Among qualifying IAD-to-PBI airline results, Republic Airways had the highest on-time rate: 80.6% of 31 flights. United Airlines was lowest at 79.9% across 303 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines30379.9%11.2%1.3%
Republic Airways3180.6%9.7%0.0%

Which month was most reliable for IAD to PBI?

Among qualifying IAD-to-PBI month results, May 2026 had the highest on-time rate: 90.0% of 20 flights. December 2025 was lowest at 71.1% across 45 flights.

MonthFlightsOn time30+ minCancelled
October 20253177.4%12.9%0.0%
November 20253076.7%6.7%3.3%
December 20254571.1%15.6%0.0%
January 20263686.1%11.1%2.8%
February 20264573.3%11.1%0.0%
March 20266280.6%14.5%3.2%
April 20265984.7%10.2%0.0%
May 20262090.0%0.0%0.0%

What drove IAD to PBI delay minutes?

Late aircraft was the largest recorded IAD-to-PBI delay category, accounting for 40.2% of 4,690 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.2%
Late aircraft40.2%
National airspace32.1%
Weather4.5%
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.