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Route Reliability

Nashville → Houston

BNA–IAH · 657 miles · Nashville International Airport to George Bush Intercontinental Airport

85
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
5 min
Average arrival delay
1.1%
Cancelled
1,848
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines83% on time · 1,817 flights
  • Spirit Airlines32% on time · 31 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Morning flights do better here.

BNA–IAH flights departing between 9 AM–12 PM arrived on time 89% of the time, versus 58% between 3–6 PM.

Friday is doing you no favors.

BNA–IAH flights arrived on time 87% of the time on Tuesdays. On Fridays: 80%.

Recent months have been rougher.

BNA–IAH flights arrived on time 79% of the time over the last three months in the data, compared with 90% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon81%(275 flights)
  • Tue87%(239 flights)
  • Wed81%(264 flights)
  • Thu81%(267 flights)
  • Fri80%(271 flights)
  • Sat86%(237 flights)
  • Sun81%(273 flights)
On-time by departure window
  • 3–6 AM—(6 flights)
  • 6–9 AM88%(615 flights)
  • 9 AM–12 PM89%(356 flights)
  • 12–3 PM84%(376 flights)
  • 3–6 PM58%(206 flights)
  • 6–9 PM75%(267 flights)
On-time trend by month
71%
May

Jun 63% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%144
July 202571%161
August 202585%158
September 202591%153
October 202585%178
November 202587%174
December 202583%165
January 202693%114
February 202694%119
March 202684%150
April 202681%164
May 202671%146

Same trip, other airports

Keep nerding

Based on 1,848 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.