Best Time to Fly CLE to IAD: On-Time Stats by Hour & Airline
Cleveland-Hopkins International → Washington Dulles International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 87.2% of Cleveland (CLE) to Washington (IAD) flights arrived on time (1,046 scheduled flights). That is 9.6 points above the national average of 77.6%.
Among 2 airlines, United Airlines led with 88.0% on time and Republic Airways was last with 85.2%.
Over 24 months, Tuesday was the most reliable day (90% on time) and July the worst month (77%).
The cancellation rate was 1.1% (US average 1.8%).
CLE to IAD 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 |
|---|---|---|---|---|
| United Airlines | 88.0% | 105 min | 0.4% | 754 |
| Republic Airways | 85.2% | 97 min | 2.7% | 292 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLE to IAD
On-time arrival % by scheduled departure hour (local time), 1,810 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 95.2% | 0.5% | 589 |
| 10am–11am | 93.4% | 0.3% | 304 |
| 12pm–1pm | 87.8% | 0.0% | 82 |
| 1pm–2pm | Limited data | 2 | |
| 2pm–3pm | 75.0% | 0.8% | 133 |
| 3pm–4pm | 80.3% | 0.9% | 215 |
| 7pm–8pm | 81.5% | 3.1% | 324 |
| 8pm–9pm | 77.4% | 1.2% | 161 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CLE to IAD
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) | 90.3% | +1.6 pts | 0.0% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 84.2% | -4.6 pts | 3.5% | 85 |
| Summer peak (Jun 15 - Aug 15) | 82.4% | -6.4 pts | 3.0% | 363 |
| All other days | 88.8% | — | 0.4% | 1,331 |
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).