HHH to DCA flight delays
Hilton Head, SC (HHH) Washington, VA (DCA) · 501 miles
331 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
80.69%
Arrived on time
Within 15 minutes of schedule
2.42%
Cancelled
Share of scheduled flights
84 min
When late, late by
Average across delayed arrivals
17 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Envoy Air arrived on time 9.5 points more often than Republic Airways over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The season swings this route hard. In September it ran 29.6 points more punctual than in March — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 84 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The route has been getting worse. The later months run 13.8 points less punctual than the earlier ones. A drift of that size is rarely weather; it is more often an airline adding frequencies faster than the airports can absorb them.
Which airline should you fly on this route?
Over January 2025 – August 2026, Envoy Air arrived on time most often on HHH to DCA. Republic Airways was late most often. Flights ran closest to schedule in September and worst in December.
Every airline on HHH to DCA
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Republic Airways | 193 | 76.63% | 3.63% | 89 min | D |
| Envoy Air | 138 | 86.13% | 0.72% | 75 min | B |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
DCA to HHH Washington back to Hilton Head 85.76% on time BOther routes from Hilton Head
Common questions
Are flights from Hilton Head to Washington usually delayed?
80.69% of flights on the HHH to DCA route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Hilton Head to Washington?
Envoy Air, at 86.13% on time across 138 flights. The least punctual on the route was Republic Airways at 76.63%.
How often are HHH to DCA flights cancelled?
2.42% of scheduled flights did not operate — about 24 in every thousand. That is in the normal range.
What is the best month to fly Hilton Head to Washington?
September, when 93.9% of flights arrived on time. The worst was March at 64.3%.
When HHH to DCA flights are late, how late are they?
About 84 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on HHH to DCA during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →