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

Houston, TX (IAH) to Charlotte, NC (CLT) flight delay odds

Historically, 77.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,348 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.8%arrived on time
14.1%30+ min late
2.0%cancelled
2,348scheduled 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
Diverted0.1%did not reach as scheduled
Average arrival+12.5 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 morning63385.9%7.7%3.2%
Late morning38185.6%10.8%1.3%
Afternoon62075.6%17.1%0.6%
Evening71468.2%18.9%2.7%

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
Monday36575.9%15.1%2.5%
Tuesday29981.3%12.4%0.7%
Wednesday29480.3%13.3%0.7%
Thursday35778.4%14.3%1.4%
Friday36376.9%16.0%0.8%
Saturday30076.3%14.7%3.3%
Sunday37076.2%12.7%4.6%

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
American Airlines1,62280.7%12.9%2.0%
United Airlines39473.6%14.7%1.5%
Frontier Airlines21765.0%20.7%3.7%
SkyWest Airlines11574.8%15.7%1.7%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202522262.2%25.7%3.2%
August 202518269.2%19.8%1.6%
September 202517586.9%8.6%0.6%
October 202518681.7%12.9%0.5%
November 202517482.8%12.1%0.6%
December 202516885.1%8.3%0.0%
January 202619081.1%5.3%11.1%
February 202619288.5%7.3%1.6%
March 202622773.6%16.7%2.6%
April 202621775.1%14.3%1.4%
May 202621578.6%14.4%0.0%
June 202620074.0%20.0%1.0%

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.

Airline35.9%
Late aircraft47.3%
National airspace9.9%
Weather6.7%
Security0.2%
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.