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Route · MCI → IAD · 2020–2025 BTS data

Kansas City to Washington

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MCI to IAD (Kansas City to Washington) ranks #4361 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

88.4%
On-time
+9.4 pts
vs US avg
88 min
Delay when late
1,191
Flights
#4361 of 4927
Corpus placement

Cancelled

1.8%

Best Month

Nov 2021 91%

Worst Month

Dec 2021 82%

Distance

926 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2022 31 6 0 0 YV
Nov 2022 30 6 0 0 YV
Oct 2022 31 2 0 0 UA,YX,YV
Sep 2022 30 3 0 0 YV
Aug 2022 31 1 0 0 YV
Jul 2022 31 2 0 0 YV
Jun 2022 31 2 0 0 YV
May 2022 30 3 0 0 YV
Apr 2022 30 2 0 0 YV
Mar 2022 36 4 1 0 YV,YX
Jan 2022 32 5 8 0 YV
Dec 2021 55 10 1 0 YV
Nov 2021 57 5 1 0 YV,UA
Oct 2021 62 9 1 0 YV
Sep 2021 60 8 1 0 YV
Aug 2021 62 11 0 0 YV
Jul 2021 62 10 0 2 YV
Jun 2021 60 8 0 0 YV
May 2021 55 5 0 0 YV
Apr 2021 30 2 0 0 YV
Mar 2021 31 1 0 0 YV
Jan 2021 35 4 2 0 YV,YX
Dec 2020 45 3 3 0 YV,YX
Sep 2020 30 2 0 0 YV

MCI–IAD seasonal on-time pattern

Best: April (93.3%) · weakest: January (83.6%)

80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 85.5%

Strongest calendar month

April

93.3% on-time · ~30 flights/mo

Busiest calendar month

February

~54 flights/mo avg

Weakest calendar month

January

83.6% on-time · ~41 flights/mo

Cancellation Rate

1.8%

18 of 987 flights

Diversion Rate

0.2%

2 of 987 flights

Explore origin & destination

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

MCI - Kansas City

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

MCI on-time profile

IAD - Washington

Full on-time, delay-cause, and seasonal performance for Washington, DC.

IAD on-time profile

Compare the two airports

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

Compare MCI vs IAD

Origin-hub reliability standing

Among MCI's stronger departures

MCI → IAD posts a 88.4% on-time rate, landing in the ≥85% band with 14 of 39 BTS-tracked routes leaving Kansas City. The same hub also shows 25 mid-band and 0 challenged departures · fleet-wide on-time rank #349 of 4927 (highest on-time = #1).

What the Data Says About MCI to IAD

Kansas City to Washington (MCI to IAD) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.4% on-time rate across 1,191 flights, with delays that do happen averaging 88.4 minutes. The corridor runs roughly 926 miles and is served by 6 carriers. Over the most recent 24 months, 18 of 987 flights were cancelled (1.8%) and 2 diverted (0.2%).

Monthly performance varies moderately here: Nov 2021 was the strongest month at 91% on-time versus Dec 2021 at 82%, a 9-point difference.

On the multi-year calendar, MCI–IAD peaks in April at 93.3% on-time while February carries the heaviest traffic (~54 flights per month) ; the softest month is January at 83.6%, a 9.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does MCI to IAD rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, MCI to IAD ranks #4361 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 MCI to IAD? ▼
Flights from Kansas City to Washington have a 88.4% on-time rate based on 1,191 flights. The average delay is 88.4 minutes. The best recent month was Nov 2021 with 91% on-time.
What is the cancellation rate for MCI to IAD? ▼
Over the last 24 months, 1.8% of flights on this route were cancelled (18 of 987 flights) and 0.2% were diverted.
How far is the flight from MCI to IAD? ▼
The flight distance from Kansas City (MCI) to Washington (IAD) is approximately 926 miles. This route is served by 6 carriers.
When is the best time to fly from MCI to IAD? ▼
The best recent month for on-time performance was Nov 2021 (91% on-time). The worst was Dec 2021 (82% on-time). Consider booking during months with historically better performance.

Airports on this route

MCI Airport

Kansas City
IAD Airport

Washington
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 MCI–IAD data

MCI–IAD runs 9.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare MCI and IAD airport profiles: delay causes and top routes differ even on the same corridor. MCI airport
  • If your dates flex, April (93.3% on-time) beats January (83.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 88.4% 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.