OnTimeRoutes
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Republic Airways IAD to CHS on-time performance

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

On-time arrivals
83%
arrived < 15 min late
Cancelled
1.3%
4 flights
Avg arrival delay
11 min
63 min when late
Rank on route
#2 of 2
route average 87% on time

Key facts

  • Republic Airways flights on IAD to CHS arrived on time 83% of the time in Aug 2025 – Jul 2026.
  • 1.3% were cancelled, and 4% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 87% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).

On-time trend by month

50%75%100%July 2025: 74.2% on time, 3.1% cancelledJul ’25August 2025: 78.8% on time, 0.0% cancelledAug ’25September 2025: 93.9% on time, 0.0% cancelledSep ’25October 2025: 96.0% on time, 0.0% cancelledOct ’25November 2025: 80.0% on time, 0.0% cancelledNov ’25December 2025: 74.4% on time, 0.0% cancelledDec ’25January 2026: 75.9% on time, 6.5% cancelledJan ’26February 2026: 92.3% on time, 0.0% cancelledFeb ’26March 2026: 65.6% on time, 3.0% cancelledMar ’26April 2026: 88.9% on time, 0.0% cancelledApr ’26May 2026: 93.3% on time, 0.0% cancelledMay ’26June 2026: 96.6% on time, 3.3% cancelledJun ’26July 2026: 80.0% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)41%
  • Late-arriving aircraft34%
  • Air traffic control & airport congestion21%
  • Extreme weather4%
  • Security0%

Other airlines on IAD to CHS

297 Republic Airways flights tracked on this route; 4 cancelled, 1 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.