Route Reliability
SBN → Washington
SBN–IAD · 504 miles · SBN Airport to Washington Dulles International Airport
77
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.9%
- Cancelled
- 365
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 79% of the time across 365 flights. No comparison to make.
What the data says
Thursday is the weak spot.
SBN–IAD flights arrived on time 86% of the time on Wednesdays. On Thursdays: 74%.
Trending in the right direction.
SBN–IAD flights arrived on time 89% of the time over the last three months in the data, compared with 49% in the three months before that.
Flights on this route
The breakdown
- Mon77%(51 flights)
- Tue77%(52 flights)
- Wed86%(51 flights)
- Thu74%(50 flights)
- Fri82%(51 flights)
- Sat77%(51 flights)
- Sun80%(51 flights)
97%
May
Jun 83% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 93% | 28 |
| August 2025 | 97% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 76% | 29 |
| December 2025 | 55% | 31 |
| January 2026 | 40% | 30 |
| February 2026 | 54% | 28 |
| March 2026 | 83% | 29 |
| April 2026 | 87% | 30 |
| May 2026 | 97% | 30 |
Same trip, other airports
Keep nerding
Based on 365 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.