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

Oklahoma City, OK (OKC) to Houston, TX (IAH) flight delay odds

83.1% of 1,399 official scheduled OKC-to-IAH flights arrived on time; 9.7% arrived at least 30 minutes late and 1.0% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
83.1%arrived on time
9.7%30+ min late
1.0%cancelled
1,399scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.9%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+3.1 mincompleted flights

Which departure time was most reliable for OKC to IAH?

Among qualifying OKC-to-IAH departure window results, Late morning had the highest on-time rate: 87.5% of 192 flights. Evening was lowest at 69.5% across 164 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning60084.8%8.7%1.5%
Late morning19287.5%7.8%1.6%
Afternoon44384.0%9.7%0.2%
Evening16469.5%15.9%0.6%

Which weekday was most reliable for OKC to IAH?

Among qualifying OKC-to-IAH weekday results, Wednesday had the highest on-time rate: 90.2% of 204 flights. Sunday was lowest at 76.7% across 215 flights.

DayFlightsOn time30+ minCancelled
Monday20482.8%11.8%1.0%
Tuesday19985.9%10.1%0.5%
Wednesday20490.2%4.9%0.5%
Thursday20283.7%7.9%0.5%
Friday20380.8%10.8%0.5%
Saturday17282.0%9.9%2.9%
Sunday21576.7%12.6%1.4%

Which airline was most reliable for OKC to IAH?

Among qualifying OKC-to-IAH airline results, SkyWest Airlines had the highest on-time rate: 84.2% of 1,091 flights. United Airlines was lowest at 79.2% across 308 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,09184.2%8.7%1.0%
United Airlines30879.2%13.3%1.0%

Which month was most reliable for OKC to IAH?

Among qualifying OKC-to-IAH month results, September 2025 had the highest on-time rate: 96.2% of 80 flights. June 2026 was lowest at 75.6% across 90 flights.

MonthFlightsOn time30+ minCancelled
July 202520680.6%11.2%1.0%
August 202513778.1%10.9%0.0%
September 20258096.2%1.2%0.0%
October 20259891.8%4.1%0.0%
November 20258278.0%13.4%0.0%
December 202510778.5%13.1%0.0%
January 202611082.7%8.2%5.5%
February 202612690.5%6.3%0.0%
March 202612882.8%9.4%3.1%
April 202612088.3%9.2%1.7%
May 202611578.3%13.9%0.0%
June 20269075.6%13.3%0.0%

What drove OKC to IAH delay minutes?

Airline was the largest recorded OKC-to-IAH delay category, accounting for 39.7% of 16,730 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.7%
Late aircraft27.3%
National airspace26.7%
Weather6.3%
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.