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

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

78.2% of 331 official scheduled HHH-to-DCA flights arrived on time; 13.6% arrived at least 30 minutes late and 2.4% 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 SIGNALGenerally reliable
78.2%arrived on time
13.6%30+ min late
2.4%cancelled
331scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.4%all scheduled flights
120+ minutes late4.8%all scheduled flights
Diverted0.6%did not reach as scheduled
Average arrival+3.4 mincompleted flights

Which departure time was most reliable for HHH to DCA?

Among qualifying HHH-to-DCA departure window results, Late morning had the highest on-time rate: 85.4% of 206 flights. Afternoon was lowest at 65.8% across 120 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning20685.4%9.7%0.5%
Afternoon12065.8%20.8%5.0%

Which weekday was most reliable for HHH to DCA?

Among qualifying HHH-to-DCA weekday results, Tuesday had the highest on-time rate: 88.9% of 45 flights. Thursday was lowest at 70.5% across 44 flights.

DayFlightsOn time30+ minCancelled
Monday4475.0%15.9%6.8%
Tuesday4588.9%8.9%0.0%
Wednesday4479.5%18.2%0.0%
Thursday4470.5%11.4%2.3%
Friday4479.5%9.1%2.3%
Saturday6675.8%18.2%3.0%
Sunday4479.5%11.4%2.3%

Which airline was most reliable for HHH to DCA?

Among qualifying HHH-to-DCA airline results, Envoy Air had the highest on-time rate: 85.5% of 138 flights. Republic Airways was lowest at 73.1% across 193 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways19373.1%16.6%3.6%
Envoy Air13885.5%9.4%0.7%

Which month was most reliable for HHH to DCA?

Among qualifying HHH-to-DCA month results, August 2025 had the highest on-time rate: 93.8% of 32 flights. March 2026 was lowest at 58.1% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253568.6%17.1%5.7%
August 20253293.8%6.2%0.0%
September 20253491.2%5.9%2.9%
October 20253293.8%3.1%0.0%
November 20253080.0%13.3%0.0%
December 20251758.8%29.4%0.0%
February 20261776.5%0.0%11.8%
March 20263158.1%12.9%9.7%
April 20263375.8%24.2%0.0%
May 20263677.8%19.4%0.0%
June 20263476.5%17.6%0.0%

What drove HHH to DCA delay minutes?

Late aircraft was the largest recorded HHH-to-DCA delay category, accounting for 47.4% of 5,223 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.3%
Late aircraft47.4%
National airspace13.5%
Weather12.8%
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.