Kansas City (MCI) to Atlanta (ATL): On-Time Performance
Data through July 2026
The calendar drives reliability on MCI–ATL. October 2024 flights landed on schedule 94% of the time, but July 2024 dropped to 72% — a gap of 22 points. Across the full period the route averages 86% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 79%), which matters most in the rough months.
- On-time
- 86%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 9.0
- last 12 months
- Duration
- 2h 2m
- scheduled
- Distance
- 692 mi
Best airline from MCI to ATL
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 88% | 10 min | 1.5% | 5,508 |
| Southwest Airlines | 81% | 12 min | 0.6% | 1,081 |
| Frontier Airlines | 57% | 37 min | 1.6% | 188 |
Monthly on-time trend
Best time to fly from MCI to ATL
Aim for departures around 9 a.m. (93% on-time); avoid 7 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 12 min |
| Tuesdaybest | 90% | 8 min |
| Wednesday | 88% | 8 min |
| Thursday | 90% | 7 min |
| Friday | 86% | 12 min |
| Saturday | 85% | 13 min |
| Sunday | 82% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations33%
- National airspace system21%
- Weather5%
Frequently asked questions
- How often are flights from MCI to ATL delayed?
- 14% of MCI–ATL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 minutes.
- Which airline is most reliable from MCI to ATL?
- Delta Air Lines has the best on-time record on this route at 88%, based on 5,508 flights. 3 airlines flew MCI–ATL frequently enough to compare in this period.
- What is the best time of day to fly from MCI to ATL?
- Departures around 9 a.m. have the best record (93% on-time), while departures around 7 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MCI to ATL?
- The scheduled MCI–ATL flight time averages 2h 2m over 692 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are MCI to ATL flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from MCI to ATL?
- July 2024 was the roughest month in this dataset, with only 72% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 6,779 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.