Airport month record
MCIJUN
Kansas City International in June 2026
- Departures
- 4,581
- Month
- June 2026
- National, same month
- 74.3%
- Carriers
- 11
Historical statistics for June 2026, not live status or a forecast for this year’s June. For today’s conditions at MCI, see live FAA status.
MCI in June lands a B, 2 points better than the national rate of 74.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 4,581 flights, of which Delta Air Lines flew 739 at 88.0% on time.
Delta Air Lines is the most reliable of the four carriers covered here at 88.0% on time across 739 flights.
Key figures
On time
76.7%
Arrivals under 15 minutes late, of 4,509 completed departures
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
1.24%
Nationally in June: 1.65%
Whole year
79.6%
MCI across all twelve months
These figures cover 4,581 departures from Kansas City International in June 2026. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
June next to MCI's other months
Against MCI's own year, June ran 3 points worse than the twelve-month rate of 79.6%, which makes it number ten of twelve months, best first.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 4,442 | 73.2% | 79 min | 1.96% | C |
| August 2025 | 4,113 | 79.7% | 64 min | 0.92% | B+ |
| September 2025 | 3,928 | 82.0% | 58 min | 0.33% | B+ |
| October 2025 | 4,214 | 80.3% | 58 min | 0.33% | B+ |
| November 2025 | 3,956 | 81.1% | 72 min | 1.82% | B |
| December 2025 | 3,969 | 74.5% | 83 min | 1.36% | C |
| January 2026 | 3,508 | 84.3% | 81 min | 3.39% | B− |
| February 2026 | 3,503 | 84.9% | 69 min | 1.48% | B |
| March 2026 | 4,227 | 79.3% | 75 min | 3.41% | B− |
| April 2026 | 4,184 | 81.9% | 70 min | 0.98% | B+ |
| May 2026 | 4,354 | 79.5% | 65 min | 1.10% | B |
| June 2026 (this page) | 4,581 | 76.7% | 73 min | 1.24% | B |
Departure window
The best time of day to leave MCI in June
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 41 points, against 18 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,088 flights91.6%
- 8am–11am734 flights85.6%
- 11am–2pm743 flights77.8%
- 2pm–5pm842 flights72.5%
- 5pm–8pm897 flights62.2%
- 8pm–5am277 flights50.7%
Scale runs 40% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 50.7% on time, against 91.6% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 1,088 flights scheduled in it.
Across the week, Tuesday is the strongest day at 86.7% on time and Sunday the weakest at 67.5%. 19 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at MCI in June
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 88.0% of the time; Southwest Airlines manages 70.2%. Sample sizes sit next to every figure, because a two-point gap across 2,169 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 2,169 | 70.2% | 54 min | 0.41% | C+ |
| Delta Air Lines | 739 | 88.0% | 64 min | 0.54% | A+ |
| United Airlines | 438 | 80.2% | 110 min | 2.74% | B |
| American Airlines | 425 | 82.5% | 120 min | 1.41% | B |
| SkyWest Airlinesthin sample | 308 | 78.5% | 102 min | 1.95% | B |
| PSA Airlinesthin sample | 139 | 75.0% | 159 min | 10.07% | B− |
| Alaska Airlinesthin sample | 119 | 89.9% | 73 min | 0.00% | A+ |
| Republic Airwaysthin sample | 112 | 78.8% | 126 min | 4.46% | B− |
| Frontier Airlinesthin sample | 47 | 72.3% | 92 min | 0.00% | C+ |
| Envoy Airthin sample | 43 | 88.1% | 148 min | 2.33% | A |
| Allegiant Airthin sample | 42 | 64.3% | 69 min | 0.00% | D+ |
The spread between Delta and Southwest is 18 points, wide enough that it should decide the booking. On a hundred trips that is 18 more arrivals inside the on-time window.
Route by route
Busiest routes out of MCI in June
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MCI to DEN · Denver | 420 | 76.1% | 72 min | 0.71% | B+ |
| MCI to ORD · Chicago | 375 | 76.6% | 139 min | 4.27% | B− |
| MCI to ATL · Atlantathin sample | 283 | 86.2% | 63 min | 0.35% | A+ |
| MCI to DFW · Dallas-Fort Worththin sample | 222 | 71.1% | 125 min | 6.76% | C− |
| MCI to MDW · Chicagothin sample | 195 | 73.1% | 50 min | 1.03% | C |
| MCI to PHX · Phoenixthin sample | 183 | 78.6% | 58 min | 0.55% | B+ |
| MCI to LGA · New Yorkthin sample | 172 | 76.2% | 58 min | 1.74% | B |
| MCI to DAL · Dallasthin sample | 167 | 64.8% | 54 min | 2.40% | D |
| MCI to DCA · Washingtonthin sample | 164 | 73.2% | 132 min | 3.05% | C− |
| MCI to LAS · Las Vegasthin sample | 158 | 73.4% | 42 min | 0.00% | C+ |
| MCI to LAX · Los Angelesthin sample | 150 | 82.0% | 66 min | 0.00% | B+ |
| MCI to AUS · Austinthin sample | 128 | 71.7% | 58 min | 0.78% | C+ |
| MCI to MCO · Orlandothin sample | 125 | 66.1% | 64 min | 0.00% | C+ |
| MCI to SEA · Seattlethin sample | 123 | 90.2% | 51 min | 0.00% | A+ |
| MCI to BNA · Nashvillethin sample | 116 | 69.0% | 39 min | 0.00% | C+ |
| MCI to MSP · Minneapolisthin sample | 114 | 88.6% | 75 min | 0.00% | A+ |
| MCI to DTW · Detroitthin sample | 113 | 83.2% | 67 min | 0.00% | B+ |
| MCI to MIA · Miamithin sample | 92 | 88.0% | 50 min | 0.00% | A+ |
| MCI to STL · St. Louisthin sample | 90 | 77.8% | 46 min | 0.00% | B+ |
| MCI to CLT · Charlottethin sample | 90 | 84.3% | 96 min | 1.11% | B |
| MCI to PHL · Philadelphiathin sample | 90 | 88.9% | 100 min | 0.00% | A+ |
| MCI to HOU · Houstonthin sample | 89 | 71.9% | 49 min | 0.00% | C+ |
| MCI to BWI · Baltimorethin sample | 87 | 82.8% | 40 min | 0.00% | B+ |
| MCI to SLC · Salt Lake Citythin sample | 86 | 89.5% | 59 min | 0.00% | A+ |
| MCI to BOS · Bostonthin sample | 76 | 71.1% | 86 min | 0.00% | C+ |
Delay causes
What held MCI up in June
One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 76,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 47%Late-arriving aircraft
- 25%Carrier
- 22%National Airspace System
- 5%Extreme weather
- 1%Security
47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 76,000 reported delay minutes here, that single category outweighs weather by 10 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 76,283 reported delay minutes.
Cancellations sit at 1.24% against a national 1.65%, which is ordinary. Diversions add another 0.33%.
8.1% of arrivals land an hour or more late, close to the national 9.7%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
What to do with this
Flying from MCI in June
For a June trip through MCI: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 91.6% on time, and with 8.1% of arrivals an hour or more late, a connection here deserves more slack than the same trip in February would.
Related
Where to go next
- Kansas City International (MCI), the whole year
- MCI in July73.2%
- MCI in August79.7%
- MCI in September82.0%
- MCI in October80.3%
- MCI in November81.1%
- MCI in December74.5%
- MCI in January84.3%
- MCI in February84.9%
- MCI in March79.3%
- MCI in April81.9%
- MCI in May79.5%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.