Best Time to Fly MSN to ATL: On-Time Stats by Hour & Airline
Dane County Regional-Truax Field → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 90.2% of Madison (MSN) to Atlanta (ATL) flights arrived on time (1,029 scheduled flights). That is 12.6 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Monday was the most reliable day (92% on time) and December the worst month (85%).
The cancellation rate was 2.1% (US average 1.8%).
MSN to ATL 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 | 90.2% | 102 min | 2.1% | 1,029 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MSN to ATL
On-time arrival % by scheduled departure hour (local time), 2,039 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.4% | 1.5% | 725 |
| 10am–11am | 91.1% | 0.0% | 91 |
| 11am–12pm | 90.3% | 1.0% | 508 |
| 12pm–1pm | Limited data | 3 | |
| 1pm–2pm | 86.0% | 1.1% | 95 |
| 2pm–3pm | Limited data | 22 | |
| 3pm–4pm | Limited data | 1 | |
| 4pm–5pm | Limited data | 27 | |
| 5pm–6pm | 86.8% | 1.9% | 564 |
| 6pm–7pm | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MSN to ATL
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) | 81.1% | -9.9 pts | 0.0% | 38 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.2% | -4.8 pts | 1.5% | 66 |
| Summer peak (Jun 15 - Aug 15) | 87.2% | -3.8 pts | 1.4% | 350 |
| All other days | 91.0% | — | 1.4% | 1,585 |
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).