Best Time to Fly SAV to IAD: On-Time Stats by Hour & Airline
Savannah/Hilton Head International → Washington Dulles International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 91.1% of Savannah (SAV) to Washington (IAD) flights arrived on time (205 scheduled flights). That is 13.5 points above the national average of 77.6%.
Among 3 airlines, Republic Airways led with 96.1% on time and Allegiant Air was last with 77.5%.
Over 24 months, Monday was the most reliable day (97% on time) and July the worst month (83%).
The cancellation rate was 1.0% (US average 1.8%).
SAV 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 |
|---|---|---|---|---|
| Republic Airways | 96.1% | 60 min | 0.0% | 51 |
| United Airlines | 95.2% | 56 min | 1.0% | 104 |
| Allegiant Air | 77.5% | 220 min | 2.0% | 50 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAV to IAD
On-time arrival % by scheduled departure hour (local time), 286 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 100.0% | 0.0% | 32 |
| 6am–7am | Limited data | 2 | |
| 7am–8am | Limited data | 5 | |
| 9am–10am | Limited data | 11 | |
| 12pm–1pm | 93.0% | 1.4% | 72 |
| 1pm–2pm | 97.0% | 2.9% | 69 |
| 2pm–3pm | 92.0% | 0.0% | 50 |
| 3pm–4pm | Limited data | 1 | |
| 5pm–6pm | Limited data | 17 | |
| 6pm–7pm | Limited data | 22 | |
| 7pm–8pm | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAV 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) | Limited data | 2 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 5 | ||
| Summer peak (Jun 15 - Aug 15) | 83.3% | -10.7 pts | 1.8% | 110 |
| All other days | 94.0% | — | 0.6% | 169 |
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).