Best Time to Fly IAD to IND: On-Time Stats by Hour & Airline
Washington Dulles International → Indianapolis International
Data through July 2026 · Last updated October 18, 2026
989 flights were scheduled from Washington (IAD) to Indianapolis (IND) in the last 12 months, and 83.8% of those that flew arrived on time, 6.1 points above the US average of 77.6%.
Among 2 airlines, Republic Airways led with 84.3% on time and United Airlines was last with 73.5%.
Over 24 months, Monday was the most reliable day (87% on time) and July the worst month (74%).
The cancellation rate was 1.0% (US average 1.8%).
IAD to IND 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 |
|---|---|---|---|---|
| Republic Airways | 84.3% | 90 min | 1.1% | 940 |
| United Airlines | 73.5% | 32 min | 0.0% | 49 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAD to IND
On-time arrival % by scheduled departure hour (local time), 2,273 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 89.8% | 0.7% | 700 |
| 9am–10am | Limited data | 2 | |
| 12pm–1pm | 85.7% | 0.7% | 717 |
| 3pm–4pm | 79.8% | 0.0% | 84 |
| 5pm–6pm | 78.8% | 2.0% | 562 |
| 10pm–11pm | 78.6% | 3.4% | 208 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on IAD to IND
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) | 89.1% | +2.7 pts | 0.0% | 46 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.4% | -2.0 pts | 0.0% | 90 |
| Summer peak (Jun 15 - Aug 15) | 74.7% | -11.7 pts | 2.6% | 390 |
| All other days | 86.4% | — | 1.0% | 1,747 |
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).