Route Reliability
Washington → Syracuse
IAD–SYR · 295 miles · Washington Dulles International Airport to Syracuse Hancock International Airport
- 78%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 2.4%
- Cancelled
- 1,302
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,302 flights. No comparison to make.
What the data says
The late departure is the smart one here.
IAD–SYR flights departing between 6–9 PM arrived on time 90% of the time, versus 73% between 3–6 PM.
Friday has been the better bet.
A small edge: 82% on time on Fridays against 75% on Tuesdays.
Trending in the right direction.
IAD–SYR flights arrived on time 84% of the time over the last three months in the data, compared with 74% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon79%(190 flights)
- Tue75%(173 flights)
- Wed76%(177 flights)
- Thu76%(190 flights)
- Fri82%(193 flights)
- Sat78%(163 flights)
- Sun80%(183 flights)
- 6–9 AM83%(316 flights)
- 12–3 PM79%(339 flights)
- 3–6 PM73%(327 flights)
- 6–9 PM90%(20 flights)
- 9 PM–12 AM77%(267 flights)
Jun 60% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 106 |
| July 2025 | 74% | 112 |
| August 2025 | 80% | 120 |
| September 2025 | 84% | 116 |
| October 2025 | 84% | 117 |
| November 2025 | 79% | 105 |
| December 2025 | 62% | 99 |
| January 2026 | 72% | 76 |
| February 2026 | 87% | 71 |
| March 2026 | 77% | 112 |
| April 2026 | 94% | 115 |
| May 2026 | 83% | 120 |
Same trip, other airports
Keep nerding
Based on 1,302 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.