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

Houston, TX (IAH) to Nashville, TN (BNA) flight delay odds

Historically, 71.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,405 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
71.5%arrived on time
17.4%30+ min late
0.7%cancelled
1,405scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.9%all scheduled flights
120+ minutes late3.8%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+13.6 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning26685.3%6.8%0.4%
Late morning10475.0%13.5%1.9%
Afternoon45868.8%18.8%0.4%
Evening55666.4%22.5%0.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday22871.5%16.7%0.9%
Tuesday16773.1%13.8%0.0%
Wednesday19477.8%14.4%0.0%
Thursday21668.5%21.3%0.0%
Friday21567.4%20.5%0.0%
Saturday16773.1%15.0%1.2%
Sunday21870.2%18.8%2.8%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines99873.1%16.1%0.5%
SkyWest Airlines39468.3%20.6%1.0%
Spirit Airlines1338.5%23.1%7.7%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202511859.3%29.7%1.7%
August 202511670.7%19.0%0.0%
September 202510981.7%8.3%0.0%
October 202510875.0%17.6%0.0%
November 202510268.6%14.7%0.0%
December 202511774.4%17.1%0.0%
January 202610182.2%6.9%5.9%
February 202611587.0%9.6%0.0%
March 202614269.0%15.5%1.4%
April 202613564.4%23.7%0.0%
May 202611167.6%18.9%0.0%
June 202613162.6%24.4%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline30.6%
Late aircraft34.5%
National airspace25.0%
Weather9.8%
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.