Best Time to Fly MCI to BWI: On-Time Stats by Hour & Airline
Kansas City International → Baltimore/Washington International Thurgood Marshall
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.0% of Kansas City (MCI) to Baltimore (BWI) flights arrived on time (882 scheduled flights). That is 5.3 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (88% on time) and March the worst month (73%).
The cancellation rate was 1.8% (US average 1.8%).
MCI to BWI 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 |
|---|---|---|---|---|
| Southwest Airlines | 83.0% | 47 min | 1.8% | 882 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCI to BWI
On-time arrival % by scheduled departure hour (local time), 1,701 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 89.5% | 1.4% | 222 |
| 6am–7am | 95.0% | 1.4% | 427 |
| 7am–8am | 93.3% | 3.2% | 31 |
| 8am–9am | Limited data | 18 | |
| 9am–10am | 90.5% | 0.0% | 42 |
| 10am–11am | 86.7% | 0.9% | 106 |
| 11am–12pm | 92.8% | 3.5% | 86 |
| 12pm–1pm | 86.0% | 0.0% | 86 |
| 1pm–2pm | 66.7% | 0.0% | 34 |
| 2pm–3pm | 82.6% | 1.1% | 95 |
| 3pm–4pm | Limited data | 20 | |
| 4pm–5pm | 74.1% | 2.9% | 204 |
| 5pm–6pm | 56.6% | 1.4% | 146 |
| 6pm–7pm | 59.0% | 4.4% | 183 |
| 8pm–9pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCI to BWI
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) | 80.0% | -3.5 pts | 0.0% | 35 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.2% | -1.3 pts | 1.4% | 74 |
| Summer peak (Jun 15 - Aug 15) | 77.8% | -5.7 pts | 3.2% | 377 |
| All other days | 83.5% | — | 1.5% | 1,215 |
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).