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

Washington, DC (IAD) to New York, NY (LGA) flight delay odds

68.9% of 980 official scheduled IAD-to-LGA flights arrived on time; 18.1% arrived at least 30 minutes late and 6.5% 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 SIGNALHigher disruption
68.9%arrived on time
18.1%30+ min late
6.5%cancelled
980scheduled 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 late3.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+10.1 mincompleted flights

Which departure time was most reliable for IAD to LGA?

Among qualifying IAD-to-LGA departure window results, Early morning had the highest on-time rate: 81.1% of 122 flights. Afternoon was lowest at 63.5% across 334 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning12281.1%6.6%4.9%
Afternoon33463.5%26.0%5.1%
Evening24265.7%18.2%9.5%
Night28272.7%13.5%6.4%

Which weekday was most reliable for IAD to LGA?

Among qualifying IAD-to-LGA weekday results, Saturday had the highest on-time rate: 83.2% of 143 flights. Thursday was lowest at 64.3% across 143 flights.

DayFlightsOn time30+ minCancelled
Monday13864.5%21.7%8.7%
Tuesday13371.4%18.0%4.5%
Wednesday13267.4%15.9%8.3%
Thursday14364.3%23.8%6.3%
Friday14865.5%21.6%5.4%
Saturday14383.2%7.0%4.2%
Sunday14365.7%18.2%8.4%

Which airline was most reliable for IAD to LGA?

Only Republic Airways met the IAD-to-LGA airline threshold: 68.9% of 980 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Republic Airways98068.9%18.1%6.5%

Which month was most reliable for IAD to LGA?

Among qualifying IAD-to-LGA month results, January 2026 had the highest on-time rate: 81.2% of 80 flights. July 2025 was lowest at 48.8% across 43 flights.

MonthFlightsOn time30+ minCancelled
July 20254348.8%25.6%16.3%
August 202510776.6%12.1%3.7%
September 202511179.3%11.7%3.6%
October 20259976.8%16.2%1.0%
November 20258853.4%25.0%14.8%
December 202510765.4%25.2%4.7%
January 20268081.2%11.2%6.2%
February 20267369.9%12.3%8.2%
March 20269556.8%24.2%13.7%
April 20262181.0%9.5%0.0%
May 20269672.9%14.6%3.1%
June 20266056.7%30.0%5.0%

What drove IAD to LGA delay minutes?

National airspace was the largest recorded IAD-to-LGA delay category, accounting for 57.0% of 16,964 BTS-attributed delay minutes during July 2025–June 2026.

Airline18.4%
Late aircraft23.9%
National airspace57.0%
Weather0.6%
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.