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

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

Historically, 75.9% 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
75.9%arrived on time
15.1%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 late8.6%all scheduled flights
120+ minutes late3.3%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+6.6 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 morning73987.4%6.9%1.5%
Late morning24980.7%13.3%1.2%
Afternoon67273.5%17.7%1.8%
Evening52164.3%21.9%2.3%
Night16764.1%22.8%4.8%

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
Monday36477.5%14.3%2.5%
Tuesday30083.0%9.7%1.0%
Wednesday29280.5%12.0%0.0%
Thursday35976.9%14.2%1.4%
Friday36371.3%17.9%1.1%
Saturday30073.3%18.0%3.0%
Sunday37070.8%18.6%4.3%

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 Airlines1,62374.7%16.4%1.6%
United Airlines39484.3%8.4%1.8%
Frontier Airlines21671.8%16.7%5.1%
SkyWest Airlines11573.0%17.4%1.7%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202522257.7%29.3%2.7%
August 202518361.2%25.7%1.1%
September 202517489.1%5.7%0.6%
October 202518681.7%12.9%0.5%
November 202517483.9%9.2%0.6%
December 202516783.2%12.0%0.0%
January 202619178.5%8.4%9.9%
February 202619086.3%8.4%2.1%
March 202622779.7%12.8%3.1%
April 202621774.2%17.1%0.9%
May 202621671.8%17.1%0.0%
June 202620169.7%18.9%1.5%

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.

Airline29.5%
Late aircraft42.5%
National airspace21.1%
Weather6.6%
Security0.3%
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.