Best Time to Fly ATL to MCI: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Kansas City International
Data through July 2026 · Last updated October 18, 2026
3,272 flights were scheduled from Atlanta (ATL) to Kansas City (MCI) in the last 12 months, and 82.8% of those that flew arrived on time, 5.2 points above the US average of 77.6%.
Among 3 airlines, Delta Air Lines led with 84.3% on time and Frontier Airlines was last with 65.5%.
Over 24 months, Tuesday was the most reliable day (87% on time) and March the worst month (75%).
The cancellation rate was 1.2% (US average 1.8%).
ATL to MCI on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 84.3% | 60 min | 1.4% | 2,738 |
| Southwest Airlines | 79.2% | 47 min | 0.0% | 365 |
| Frontier Airlines | 65.5% | 77 min | 0.6% | 166 |
| American Airlines | Limited data | 2 | ||
| SkyWest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to MCI
On-time arrival % by scheduled departure hour (local time), 6,464 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 9 | |
| 8am–9am | 90.2% | 1.2% | 809 |
| 9am–10am | 84.4% | 1.6% | 320 |
| 10am–11am | 89.0% | 0.4% | 458 |
| 11am–12pm | 88.0% | 2.7% | 376 |
| 12pm–1pm | 86.4% | 0.0% | 296 |
| 1pm–2pm | 82.9% | 0.6% | 467 |
| 2pm–3pm | 79.1% | 0.6% | 521 |
| 3pm–4pm | 79.8% | 0.6% | 479 |
| 4pm–5pm | 74.6% | 1.1% | 528 |
| 5pm–6pm | 76.3% | 0.5% | 199 |
| 6pm–7pm | 70.8% | 0.4% | 238 |
| 7pm–8pm | 72.6% | 1.5% | 399 |
| 8pm–9pm | 76.7% | 0.6% | 311 |
| 9pm–10pm | 76.7% | 1.1% | 273 |
| 10pm–11pm | 78.0% | 1.9% | 745 |
| 11pm–12am | 74.3% | 2.8% | 36 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL to MCI
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 71.5% | -10.7 pts | 0.8% | 118 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.1% | +1.8 pts | 0.9% | 229 |
| Summer peak (Jun 15 - Aug 15) | 76.9% | -5.3 pts | 1.0% | 1,197 |
| All other days | 82.2% | — | 1.1% | 4,920 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).