Best Time to Fly CID to ATL: On-Time Stats by Hour & Airline
The Eastern Iowa → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
367 flights were scheduled from Cedar Rapids/Iowa City (CID) to Atlanta (ATL) in the last 12 months, and 87.2% of those that flew arrived on time, 9.5 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (94% on time) and December the worst month (70%).
The cancellation rate was 2.2% (US average 1.8%).
CID 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 | 87.2% | 97 min | 2.2% | 367 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CID to ATL
On-time arrival % by scheduled departure hour (local time), 733 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 86.8% | 2.0% | 557 |
| 6am–7am | 93.6% | 0.0% | 171 |
| 10am–11am | Limited data | 1 | |
| 11am–12pm | Limited data | 1 | |
| 12pm–1pm | Limited data | 2 | |
| 6pm–7pm | 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 CID 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) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 89.3% | +0.2 pts | 2.4% | 124 |
| All other days | 89.1% | — | 1.1% | 567 |
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).