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Route Reliability

St. Louis → Nashville

STL–BNA · 272 miles · St. Louis Lambert International Airport to Nashville International Airport

88
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
Cancelled
1,269
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 84% of the time across 1,269 flights. No comparison to make.

What the data says

Morning-you made the right choice.

STL–BNA flights departing between 6–9 AM arrived on time 96% of the time, versus 49% between 9 PM–12 AM.

Skip Monday if you can.

STL–BNA flights arrived on time 88% of the time on Wednesdays. On Mondays: 79%.

Slipping a little lately.

STL–BNA flights arrived on time 82% of the time over the last three months in the data, compared with 86% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(199 flights)
  • Tue88%(186 flights)
  • Wed88%(180 flights)
  • Thu83%(198 flights)
  • Fri84%(199 flights)
  • Sat84%(120 flights)
  • Sun81%(176 flights)
On-time by departure window
  • 3–6 AM90%(19 flights)
  • 6–9 AM96%(351 flights)
  • 9 AM–12 PM91%(203 flights)
  • 12–3 PM83%(267 flights)
  • 3–6 PM77%(178 flights)
  • 6–9 PM70%(201 flights)
  • 9 PM–12 AM49%(39 flights)
On-time trend by month
81%
May

Jun 78% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%101
July 202572%100
August 202590%109
September 202594%107
October 202585%119
November 202586%102
December 202579%102
January 202689%91
February 202689%96
March 202677%107
April 202687%111
May 202681%113

Keep nerding

Based on 1,269 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.