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

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

79.4% of 1,274 official scheduled BNA-to-STL flights arrived on time; 12.0% arrived at least 30 minutes late and 0.9% 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 SIGNALGenerally reliable
79.4%arrived on time
12.0%30+ min late
0.9%cancelled
1,274scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.7%all scheduled flights
120+ minutes late1.3%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+2.4 mincompleted flights

Which departure time was most reliable for BNA to STL?

Among qualifying BNA-to-STL departure window results, Early morning had the highest on-time rate: 95.6% of 340 flights. Evening was lowest at 69.5% across 387 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning34095.6%1.2%0.6%
Late morning10181.2%13.9%1.0%
Afternoon23277.6%11.2%0.9%
Evening38769.5%18.9%0.8%
Night21472.9%16.8%1.9%

Which weekday was most reliable for BNA to STL?

Among qualifying BNA-to-STL weekday results, Saturday had the highest on-time rate: 86.9% of 122 flights. Sunday was lowest at 70.9% across 175 flights.

DayFlightsOn time30+ minCancelled
Monday20171.6%16.4%1.0%
Tuesday19383.4%9.8%0.0%
Wednesday18483.7%7.6%0.5%
Thursday19879.3%15.7%0.5%
Friday20182.6%9.5%0.5%
Saturday12286.9%8.2%1.6%
Sunday17570.9%15.4%2.9%

Which airline was most reliable for BNA to STL?

Only Southwest Airlines met the BNA-to-STL airline threshold: 79.4% of 1,274 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,27479.4%12.0%0.9%

Which month was most reliable for BNA to STL?

Among qualifying BNA-to-STL month results, September 2025 had the highest on-time rate: 90.7% of 108 flights. May 2026 was lowest at 64.9% across 114 flights.

MonthFlightsOn time30+ minCancelled
July 202510075.0%16.0%1.0%
August 202510989.0%4.6%1.8%
September 202510890.7%4.6%0.0%
October 202511969.7%16.8%0.0%
November 202510280.4%11.8%0.0%
December 202510277.5%16.7%1.0%
January 20269788.7%4.1%4.1%
February 20269484.0%6.4%0.0%
March 202611083.6%10.9%1.8%
April 202611176.6%14.4%0.0%
May 202611464.9%20.2%0.9%
June 202610875.9%15.7%0.9%

What drove BNA to STL delay minutes?

Late aircraft was the largest recorded BNA-to-STL delay category, accounting for 67.8% of 12,851 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.4%
Late aircraft67.8%
National airspace4.9%
Weather2.6%
Security0.3%
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.