OnTimeRoutes
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Republic Airways BOS to IAD on-time performance

Republic Airways nonstop flights from Boston to Washington · Aug 2025 – Jul 2026Regional airline operating flights for American Eagle, Delta Connection and United Express.

On-time arrivals
78%
arrived < 15 min late
Cancelled
14.0%
8 flights
Avg arrival delay
38 min
166 min when late
Rank on route
#2 of 2
route average 84% on time

Key facts

  • Republic Airways flights on BOS to IAD arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 14% were cancelled, and 14% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 84% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (66%).

On-time trend by month

0%50%100%December 2025: 0.0% on time, 0.0% cancelledDec ’25January 2026: 100.0% on time, 0.0% cancelledJan ’26July 2026: 80.4% on time, 14.8% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion66%
  • Late-arriving aircraft26%
  • Airline (crew, maintenance, cleaning, fueling)9%
  • Extreme weather0%
  • Security0%

Other airlines on BOS to IAD

57 Republic Airways flights tracked on this route; 8 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.