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

Nashville, TN (BNA) to Chicago, IL (ORD) flight delay odds

68.2% of 5,024 official scheduled BNA-to-ORD flights arrived on time; 20.0% arrived at least 30 minutes late and 2.8% 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
68.2%arrived on time
20.0%30+ min late
2.8%cancelled
5,024scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.7%all scheduled flights
120+ minutes late6.0%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+21.3 mincompleted flights

Which departure time was most reliable for BNA to ORD?

Among qualifying BNA-to-ORD departure window results, Late morning had the highest on-time rate: 79.7% of 1,214 flights. Evening was lowest at 50.5% across 763 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,37874.7%16.5%2.2%
Late morning1,21479.7%11.8%2.1%
Afternoon1,64362.4%23.5%2.6%
Evening76350.5%31.6%5.2%

Which weekday was most reliable for BNA to ORD?

Among qualifying BNA-to-ORD weekday results, Saturday had the highest on-time rate: 74.6% of 615 flights. Monday was lowest at 62.1% across 771 flights.

DayFlightsOn time30+ minCancelled
Monday77162.1%24.6%4.2%
Tuesday69972.2%18.3%1.7%
Wednesday68674.1%16.8%1.7%
Thursday74964.8%20.3%1.9%
Friday74969.2%19.0%2.4%
Saturday61574.6%15.8%2.9%
Sunday75562.6%23.7%4.5%

Which airline was most reliable for BNA to ORD?

Among qualifying BNA-to-ORD airline results, Southwest Airlines had the highest on-time rate: 75.1% of 338 flights. SkyWest Airlines was lowest at 63.4% across 1,467 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,46763.4%24.3%3.7%
United Airlines1,38070.7%17.5%2.1%
Envoy Air78269.8%17.4%3.8%
Republic Airways56271.5%15.8%2.1%
American Airlines38464.3%28.1%1.8%
Southwest Airlines33875.1%13.6%1.5%
Frontier Airlines8165.4%25.9%3.7%
Spirit Airlines2766.7%11.1%0.0%
PSA Airlines366.7%33.3%0.0%

Which month was most reliable for BNA to ORD?

Among qualifying BNA-to-ORD month results, September 2025 had the highest on-time rate: 81.1% of 397 flights. July 2025 was lowest at 55.6% across 419 flights.

MonthFlightsOn time30+ minCancelled
July 202541955.6%31.3%2.6%
August 202541371.4%18.6%2.7%
September 202539781.1%11.3%0.3%
October 202547872.6%17.6%0.2%
November 202542765.3%20.6%5.4%
December 202536765.4%23.2%0.8%
January 202632668.1%18.4%6.1%
February 202632971.1%18.5%0.0%
March 202644659.6%24.4%6.7%
April 202651268.8%17.0%3.5%
May 202649772.2%15.9%2.0%
June 202641367.3%23.5%2.9%

What drove BNA to ORD delay minutes?

Airline was the largest recorded BNA-to-ORD delay category, accounting for 35.3% of 133,501 BTS-attributed delay minutes during July 2025–June 2026.

Airline35.3%
Late aircraft28.2%
National airspace29.5%
Weather7.0%
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.