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

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

78.3% of 1,399 official scheduled IAH-to-OKC flights arrived on time; 15.5% arrived at least 30 minutes late and 1.1% 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 SIGNALGenerally reliable
78.3%arrived on time
15.5%30+ min late
1.1%cancelled
1,399scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.0%all scheduled flights
120+ minutes late3.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+9.5 mincompleted flights

Which departure time was most reliable for IAH to OKC?

Among qualifying IAH-to-OKC departure window results, Late morning had the highest on-time rate: 86.1% of 72 flights. Evening was lowest at 71.8% across 579 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning23686.0%9.7%0.4%
Late morning7286.1%8.3%0.0%
Afternoon28083.2%10.7%0.7%
Evening57971.8%21.2%1.7%
Night23278.0%15.1%1.3%

Which weekday was most reliable for IAH to OKC?

Among qualifying IAH-to-OKC weekday results, Thursday had the highest on-time rate: 84.7% of 202 flights. Saturday was lowest at 71.1% across 180 flights.

DayFlightsOn time30+ minCancelled
Monday20577.1%17.1%1.0%
Tuesday20181.6%14.9%0.0%
Wednesday20381.3%12.3%0.5%
Thursday20284.7%11.9%0.0%
Friday20374.9%16.3%3.0%
Saturday18071.1%20.6%2.2%
Sunday20576.6%16.1%1.5%

Which airline was most reliable for IAH to OKC?

Among qualifying IAH-to-OKC airline results, United Airlines had the highest on-time rate: 81.1% of 307 flights. SkyWest Airlines was lowest at 77.5% across 1,092 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines1,09277.5%16.1%1.1%
United Airlines30781.1%13.4%1.3%

Which month was most reliable for IAH to OKC?

Among qualifying IAH-to-OKC month results, October 2025 had the highest on-time rate: 87.6% of 97 flights. June 2026 was lowest at 70.0% across 90 flights.

MonthFlightsOn time30+ minCancelled
July 202520671.8%21.4%1.0%
August 202513678.7%16.2%0.0%
September 20258086.2%11.2%0.0%
October 20259787.6%7.2%0.0%
November 20258278.0%12.2%0.0%
December 202510980.7%15.6%0.0%
January 202611176.6%12.6%6.3%
February 202612679.4%12.7%0.0%
March 202612777.2%18.1%3.1%
April 202611978.2%16.8%1.7%
May 202611681.9%10.3%0.9%
June 20269070.0%25.6%0.0%

What drove IAH to OKC delay minutes?

Late aircraft was the largest recorded IAH-to-OKC delay category, accounting for 47.6% of 23,773 BTS-attributed delay minutes during July 2025–June 2026.

Airline32.0%
Late aircraft47.6%
National airspace9.3%
Weather11.1%
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.