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

St. Louis, MO (STL) to Nashville, TN (BNA) flight delay odds

82.1% of 1,275 official scheduled STL-to-BNA flights arrived on time; 10.4% arrived at least 30 minutes late and 0.6% 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 SIGNALLower disruption
82.1%arrived on time
10.4%30+ min late
0.6%cancelled
1,275scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.9%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+2.7 mincompleted flights

Which departure time was most reliable for STL to BNA?

Among qualifying STL-to-BNA departure window results, Early morning had the highest on-time rate: 93.7% of 350 flights. Evening was lowest at 71.8% across 316 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35093.7%2.6%1.1%
Late morning22789.4%4.8%0.0%
Afternoon35577.7%13.2%0.8%
Evening31671.8%17.7%0.3%

Which weekday was most reliable for STL to BNA?

Among qualifying STL-to-BNA weekday results, Tuesday had the highest on-time rate: 86.5% of 193 flights. Monday was lowest at 74.0% across 200 flights.

DayFlightsOn time30+ minCancelled
Monday20074.0%16.0%1.0%
Tuesday19386.5%5.7%0.0%
Wednesday18486.4%6.5%0.0%
Thursday19981.9%11.6%0.5%
Friday20183.6%8.5%0.5%
Saturday12282.8%11.5%1.6%
Sunday17680.1%13.1%1.1%

Which airline was most reliable for STL to BNA?

Only Southwest Airlines met the STL-to-BNA airline threshold: 82.1% of 1,275 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,27582.1%10.4%0.6%

Which month was most reliable for STL to BNA?

Among qualifying STL-to-BNA month results, September 2025 had the highest on-time rate: 92.6% of 108 flights. July 2025 was lowest at 72.0% across 100 flights.

MonthFlightsOn time30+ minCancelled
July 202510072.0%20.0%0.0%
August 202510989.9%5.5%0.0%
September 202510892.6%1.9%0.0%
October 202511984.0%10.1%0.0%
November 202510286.3%10.8%0.0%
December 202510278.4%14.7%0.0%
January 20269684.4%7.3%4.2%
February 20269686.5%8.3%0.0%
March 202611074.5%13.6%2.7%
April 202611186.5%6.3%0.0%
May 202611478.1%10.5%0.9%
June 202610872.2%15.7%0.0%

What drove STL to BNA delay minutes?

Late aircraft was the largest recorded STL-to-BNA delay category, accounting for 62.3% of 11,847 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.9%
Late aircraft62.3%
National airspace11.5%
Weather2.3%
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.