BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
DCA→HHH

Washington, DC (DCA) to Hilton Head, SC (HHH) flight delay odds

83.7% of 331 official scheduled DCA-to-HHH flights arrived on time; 7.9% arrived at least 30 minutes late and 0.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
83.7%arrived on time
7.9%30+ min late
0.9%cancelled
331scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.8%all scheduled flights
120+ minutes late1.8%all scheduled flights
Diverted1.5%did not reach as scheduled
Average arrival-6.5 mincompleted flights

Which departure time was most reliable for DCA to HHH?

Among qualifying DCA-to-HHH departure window results, Early morning had the highest on-time rate: 92.2% of 179 flights. Afternoon was lowest at 74.3% across 109 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning17992.2%2.8%0.0%
Afternoon10974.3%13.8%1.8%

Which weekday was most reliable for DCA to HHH?

Among qualifying DCA-to-HHH weekday results, Tuesday had the highest on-time rate: 91.1% of 45 flights. Sunday was lowest at 81.8% across 44 flights.

DayFlightsOn time30+ minCancelled
Monday4481.8%11.4%2.3%
Tuesday4591.1%4.4%0.0%
Wednesday4486.4%6.8%0.0%
Thursday4481.8%11.4%0.0%
Friday4481.8%9.1%0.0%
Saturday6681.8%9.1%1.5%
Sunday4481.8%2.3%2.3%

Which airline was most reliable for DCA to HHH?

Among qualifying DCA-to-HHH airline results, Envoy Air had the highest on-time rate: 91.3% of 138 flights. Republic Airways was lowest at 78.2% across 193 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways19378.2%10.9%1.6%
Envoy Air13891.3%3.6%0.0%

Which month was most reliable for DCA to HHH?

Among qualifying DCA-to-HHH month results, August 2025 had the highest on-time rate: 93.8% of 32 flights. February 2026 was lowest at 64.7% across 17 flights.

MonthFlightsOn time30+ minCancelled
July 20253580.0%5.7%0.0%
August 20253293.8%3.1%0.0%
September 20253488.2%5.9%2.9%
October 20253293.8%3.1%0.0%
November 20253086.7%6.7%0.0%
December 20251764.7%23.5%0.0%
February 20261764.7%5.9%11.8%
March 20263174.2%22.6%0.0%
April 20263381.8%9.1%0.0%
May 20263686.1%0.0%0.0%
June 20263488.2%8.8%0.0%

What drove DCA to HHH delay minutes?

Late aircraft was the largest recorded DCA-to-HHH delay category, accounting for 50.4% of 2,691 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.1%
Late aircraft50.4%
National airspace25.0%
Weather1.6%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.