Best Time to Fly IAD to ORF: On-Time Stats by Hour & Airline
Washington Dulles International → Norfolk International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.8% of Washington (IAD) to Norfolk (ORF) flights arrived on time (689 scheduled flights). That is 4.2 points above the national average of 77.6%.
Among 2 airlines, United Airlines led with 83.7% on time and Republic Airways was last with 79.5%.
Over 24 months, Tuesday was the most reliable day (89% on time) and December the worst month (72%).
The cancellation rate was 2.0% (US average 1.8%).
IAD to ORF 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 | 83.7% | 61 min | 0.5% | 375 |
| Republic Airways | 79.5% | 74 min | 3.8% | 314 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAD to ORF
On-time arrival % by scheduled departure hour (local time), 1,220 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 94.0% | 0.5% | 186 |
| 12pm–1pm | 88.6% | 0.0% | 149 |
| 3pm–4pm | Limited data | 29 | |
| 5pm–6pm | 79.8% | 4.6% | 280 |
| 10pm–11pm | 77.2% | 1.7% | 576 |
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 ORF
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) | 80.6% | -3.5 pts | 0.0% | 36 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.0% | -9.0 pts | 0.0% | 48 |
| Summer peak (Jun 15 - Aug 15) | 75.6% | -8.5 pts | 3.2% | 216 |
| All other days | 84.0% | — | 1.9% | 920 |
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).