PlainFlights

Route · IAH → MCI · 2020–2025 BTS data

Houston to Kansas City

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to MCI (Houston to Kansas City) ranks #2353 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.3%
On-time
+3.3 pts
vs US avg
82 min
Delay when late
5,354
Flights
#2353 of 4927
Corpus placement

Cancelled

2.4%

Best Month

Oct 2023 84%

Worst Month

Jul 2024 65%

Distance

643 mi

Carriers

16

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 31 4 0 0 UA
Nov 2025 33 8 0 0 OO,UA
Oct 2025 31 8 0 0 UA
Sep 2025 30 4 0 0 UA
May 2025 72 18 1 0 UA
Apr 2025 31 9 0 0 UA
Mar 2025 34 11 0 0 OO,UA
Feb 2025 48 11 0 0 OO,UA
Jan 2025 32 7 5 0 OO,UA
Dec 2024 32 8 1 0 OO,UA
Oct 2024 32 5 0 0 UA,OO
Sep 2024 53 9 0 0 OO,UA
Aug 2024 36 13 1 0 OO,UA
Jul 2024 62 22 5 0 OO,UA
Jun 2024 34 13 1 0 OO,UA
May 2024 50 18 4 1 OO,UA
Apr 2024 30 13 0 0 UA
Mar 2024 90 19 0 0 UA
Feb 2024 37 4 0 0 UA
Jan 2024 42 11 6 0 UA
Dec 2023 47 9 0 0 UA,OO
Nov 2023 32 6 0 0 OO,UA
Oct 2023 56 9 0 0 OO,UA
Sep 2023 34 12 0 0 OO,UA

IAH–MCI seasonal on-time pattern

Best: February (86.2%) · weakest: July (73.4%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 82.8%

Strongest calendar month

February

86.2% on-time · ~85 flights/mo

Busiest calendar month

March

~97 flights/mo avg

Weakest calendar month

July

73.4% on-time · ~84 flights/mo

Cancellation Rate

2.4%

24 of 1,009 flights

Diversion Rate

0.1%

1 of 1,009 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

IAH - Houston

Full on-time, delay-cause, and seasonal performance for Houston, TX.

IAH on-time profile

MCI - Kansas City

Full on-time, delay-cause, and seasonal performance for Kansas City, MO.

MCI on-time profile

Compare the two airports

See IAH and MCI side by side on delays, cancellations, and reliability.

Compare IAH vs MCI

Origin-hub reliability standing

Mid-pack among IAH departures

From IAH, this corridor sits with 79 other 75–85% on-time routes out of 102 tracked departures, not the hub's reliability leaders (17 at ≥85%) and not the softest ( 6 below 75%). Destination: Kansas City · fleet on-time rank #2232 of 4927.

What the Data Says About IAH to MCI

Bureau of Transportation Statistics records show Houston to Kansas City (IAH to MCI) running a 82.3% on-time rate over 5,354 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 82.3 minutes. The 643-mile corridor is served by 16 carriers, and over the last 24 months 2.4% of 1,009 flights were cancelled, 0.1% diverted.

The monthly split is wide on this route: Oct 2023 posted the strongest performance at 84% on-time, while Jul 2024 came in at just 65% - a 19-point swing worth factoring into travel timing.

On the multi-year calendar, IAH–MCI peaks in February at 86.2% on-time while March carries the heaviest traffic (~97 flights per month) ; the softest month is July at 73.4%, a 12.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to MCI rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to MCI ranks #2353 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IAH to MCI? ▼
Flights from Houston to Kansas City have a 82.3% on-time rate based on 5,354 flights. The average delay is 82.3 minutes. The best recent month was Oct 2023 with 84% on-time.
What is the cancellation rate for IAH to MCI? ▼
Over the last 24 months, 2.4% of flights on this route were cancelled (24 of 1,009 flights) and 0.1% were diverted.
How far is the flight from IAH to MCI? ▼
The flight distance from Houston (IAH) to Kansas City (MCI) is approximately 643 miles. This route is served by 16 carriers.
When is the best time to fly from IAH to MCI? ▼
The best recent month for on-time performance was Oct 2023 (84% on-time). The worst was Jul 2024 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

IAH Airport

Houston
MCI Airport

Kansas City
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using IAH–MCI data

IAH–MCI runs 3.3 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IAH and MCI airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, February (86.2% on-time) beats July (73.4%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.3% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.