BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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DLH→ORD

Duluth, MN (DLH) to Chicago, IL (ORD) flight delay odds

65.5% of 1,216 official scheduled DLH-to-ORD flights arrived on time; 21.4% arrived at least 30 minutes late and 3.9% 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 SIGNALVariable
65.5%arrived on time
21.4%30+ min late
3.9%cancelled
1,216scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.1%all scheduled flights
120+ minutes late7.4%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+27.6 mincompleted flights

Which departure time was most reliable for DLH to ORD?

Among qualifying DLH-to-ORD departure window results, Early morning had the highest on-time rate: 75.5% of 412 flights. Evening was lowest at 45.2% across 84 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning41275.5%14.8%2.9%
Late morning36167.3%20.5%3.0%
Afternoon35957.1%26.7%4.7%
Evening8445.2%34.5%9.5%

Which weekday was most reliable for DLH to ORD?

Among qualifying DLH-to-ORD weekday results, Tuesday had the highest on-time rate: 73.4% of 173 flights. Friday was lowest at 61.8% across 178 flights.

DayFlightsOn time30+ minCancelled
Monday17766.7%24.3%3.4%
Tuesday17373.4%16.8%3.5%
Wednesday17162.6%22.8%2.9%
Thursday17563.4%19.4%3.4%
Friday17861.8%24.7%2.8%
Saturday16767.1%21.6%6.0%
Sunday17564.0%20.0%5.7%

Which airline was most reliable for DLH to ORD?

Among qualifying DLH-to-ORD airline results, Republic Airways had the highest on-time rate: 71.1% of 83 flights. SkyWest Airlines was lowest at 65.1% across 1,133 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,13365.1%21.4%4.0%
Republic Airways8371.1%20.5%3.6%

Which month was most reliable for DLH to ORD?

Among qualifying DLH-to-ORD month results, October 2025 had the highest on-time rate: 82.6% of 115 flights. January 2026 was lowest at 51.6% across 62 flights.

MonthFlightsOn time30+ minCancelled
July 202511361.1%27.4%2.7%
August 202510664.2%20.8%2.8%
September 202511975.6%15.1%1.7%
October 202511582.6%7.8%0.0%
November 20258966.3%22.5%6.7%
December 20256352.4%36.5%7.9%
January 20266251.6%30.6%1.6%
February 20267372.6%12.3%2.7%
March 202611054.5%30.0%10.9%
April 202613660.3%25.0%7.4%
May 202613573.3%17.0%0.7%
June 20269560.0%20.0%3.2%

What drove DLH to ORD delay minutes?

Late aircraft was the largest recorded DLH-to-ORD delay category, accounting for 31.0% of 38,307 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.7%
Late aircraft31.0%
National airspace23.5%
Weather16.8%
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.