DCA to HHH flight delays
Washington, VA (DCA) Hilton Head, SC (HHH) · 501 miles
331 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
85.76%
Arrived on time
Within 15 minutes of schedule
0.91%
Cancelled
Share of scheduled flights
59 min
When late, late by
Average across delayed arrivals
9 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 10.8 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 August it ran 19.6 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.
This route does better than its own airport. Departures from DCA overall run 11.9 points less punctual than this particular one — so whatever congestion DCA has, this route is largely escaping it.
The two directions do not behave alike. HHH to DCA arrives on time 5.1 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Which airline should you fly on this route?
Over January 2025 – August 2026, Envoy Air arrived on time most often on DCA to HHH. Republic Airways was late most often. Flights ran closest to schedule in August and worst in December.
Every airline on DCA to HHH
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 | 81.18% | 1.55% | 63 min | C |
| Envoy Air | 138 | 91.97% | 0% | 45 min | A |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
HHH to DCA Hilton Head back to Washington 80.69% on time COther routes from Washington
Common questions
Are flights from Washington to Hilton Head usually delayed?
85.76% of flights on the DCA to HHH route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Washington to Hilton Head?
Envoy Air, at 91.97% on time across 138 flights. The least punctual on the route was Republic Airways at 81.18%.
How often are DCA to HHH flights cancelled?
0.91% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
What is the best month to fly Washington to Hilton Head?
August, when 93.8% of flights arrived on time. The worst was March at 74.2%.
When DCA to HHH flights are late, how late are they?
About 59 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 DCA to HHH 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 →