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Route Reliability

Columbus → Nashville

CMH–BNA · 338 miles · John Glenn Columbus International Airport to Nashville International Airport

88
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
0 min
Average arrival delay
0.8%
Cancelled
1,005
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 83% of the time across 1,005 flights. No comparison to make.

What the data says

Morning flights do better here.

CMH–BNA flights departing between 6–9 AM arrived on time 97% of the time, versus 62% between 9 PM–12 AM.

Monday is the weak spot.

CMH–BNA flights arrived on time 89% of the time on Tuesdays. On Mondays: 78%.

Slipping a little lately.

CMH–BNA flights arrived on time 81% of the time over the last three months in the data, compared with 87% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon78%(147 flights)
  • Tue89%(147 flights)
  • Wed88%(145 flights)
  • Thu84%(149 flights)
  • Fri80%(149 flights)
  • Sat81%(134 flights)
  • Sun82%(126 flights)
On-time by departure window
  • 3–6 AM77%(13 flights)
  • 6–9 AM97%(348 flights)
  • 9 AM–12 PM93%(53 flights)
  • 12–3 PM77%(125 flights)
  • 3–6 PM76%(122 flights)
  • 6–9 PM75%(275 flights)
  • 9 PM–12 AM62%(61 flights)
On-time trend by month
77%
May

Jun 79% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%85
July 202574%87
August 202592%87
September 202588%88
October 202581%87
November 202585%85
December 202581%91
January 202693%60
February 202686%66
March 202683%81
April 202683%88
May 202677%92

Keep nerding

Based on 1,005 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.