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

Roanoke, VA (ROA) to Chicago, IL (ORD) flight delay odds

72.7% of 847 official scheduled ROA-to-ORD flights arrived on time; 17.1% arrived at least 30 minutes late and 2.6% 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
72.7%arrived on time
17.1%30+ min late
2.6%cancelled
847scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late11.1%all scheduled flights
120+ minutes late6.1%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+17.7 mincompleted flights

Which departure time was most reliable for ROA to ORD?

Among qualifying ROA-to-ORD departure window results, Early morning had the highest on-time rate: 79.2% of 466 flights. Evening was lowest at 57.1% across 203 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning46679.2%13.1%1.5%
Late morning14274.6%16.2%4.2%
Evening20357.1%26.1%3.0%

Which weekday was most reliable for ROA to ORD?

Among qualifying ROA-to-ORD weekday results, Monday had the highest on-time rate: 77.4% of 124 flights. Tuesday was lowest at 64.8% across 125 flights.

DayFlightsOn time30+ minCancelled
Monday12477.4%14.5%4.0%
Tuesday12564.8%17.6%5.6%
Wednesday11676.7%14.7%1.7%
Thursday12172.7%13.2%0.8%
Friday12569.6%24.8%0.8%
Saturday11473.7%19.3%1.8%
Sunday12274.6%15.6%3.3%

Which airline was most reliable for ROA to ORD?

Among qualifying ROA-to-ORD airline results, Republic Airways had the highest on-time rate: 76.9% of 290 flights. SkyWest Airlines was lowest at 70.6% across 557 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines55770.6%19.2%2.9%
Republic Airways29076.9%13.1%2.1%

Which month was most reliable for ROA to ORD?

Among qualifying ROA-to-ORD month results, May 2026 had the highest on-time rate: 86.9% of 61 flights. December 2025 was lowest at 60.0% across 70 flights.

MonthFlightsOn time30+ minCancelled
July 20255865.5%25.9%0.0%
August 20259470.2%13.8%4.3%
September 202511777.8%12.0%0.9%
October 202511377.0%13.3%0.0%
November 20255969.5%15.3%5.1%
December 20257060.0%30.0%4.3%
January 20264575.6%17.8%6.7%
February 20264369.8%23.3%0.0%
March 20265865.5%19.0%8.6%
April 20263979.5%17.9%0.0%
May 20266186.9%9.8%1.6%
June 20269072.2%17.8%2.2%

What drove ROA to ORD delay minutes?

Airline was the largest recorded ROA-to-ORD delay category, accounting for 44.4% of 21,045 BTS-attributed delay minutes during July 2025–June 2026.

Airline44.4%
Late aircraft31.0%
National airspace18.2%
Weather6.3%
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.