Route Reliability
Washington → Bozeman
IAD–BZN · 1,773 miles · Washington Dulles International Airport to Bozeman Yellowstone International Airport
97
Nerd Approved
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 0%
- Cancelled
- 52
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 89% of the time across 52 flights. No comparison to make.
What the data says
Mornings have a slight edge.
Departures between 9 AM–12 PM arrived on time 91% of the time, against 88% between 6–9 AM.
Saturdays have been rough.
IAD–BZN flights arrived on time 100% of the time on Sundays and just 82% on Saturdays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon—(0 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu—(0 flights)
- Fri—(0 flights)
- Sat82%(33 flights)
- Sun100%(19 flights)
- 6–9 AM88%(41 flights)
- 9 AM–12 PM91%(11 flights)
Keep nerding
Based on 52 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.