Route
HHH → DCA
Hilton Head Airport Ronald Reagan Washington National Airport
501 miles
Return route DCA → HHH →
How punctual is this route?
- On-time arrivals
- 79.7%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 330
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 49%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 15%
- Extreme weather 12%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.9% | 34 |
| October 2025 | 93.8% | 32 |
| November 2025 | 82.8% | 30 |
| December 2025 | 58.8% | 17 |
| February 2026 | 86.7% | 17 |
| March 2026 | 64.3% | 31 |
| April 2026 | 75.8% | 33 |
| May 2026 | 80.0% | 36 |
| June 2026 | 76.5% | 34 |
| July 2026 | 81.2% | 34 |
| August 2026 | 75.0% | 32 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 226 | 78.7% | 3.1% | 93 min |
| Envoy Air | 104 | 81.7% | 0.0% | 73 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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