The cheapest times to fly from IAD to HHH are

  • January 1st to February 25th
  • April 23rd to July 22nd (except the weeks of May 7th, May 21st, and June 25th)
  • October 8th to November 18th
  • December 3rd to December 16th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAD to HHH is early to mid July. Prices can be as high as $788 for Sunday flights during early April, or as low as $291 for Tuesday flights around early to mid July.


When to Fly to Hilton Head Island

Flying from Washington, DC (IAD) to Hilton Head, SC (HHH) will usually cost between $294 to $474 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid July with an average ticket price of $304. Due to high demand the most expensive time to fly is early April, with an average price of $483. Planning your trip to low-cost times can easily save you $179 on economy flights and even more on first-class flights. Generally, any price below $338 can be considered a good price for a round-trip IAD to HHH flight.

See below for a graph of average weekly prices for the IAD to HHH route. All prices are for round-trip tickets in USD.

IAD to HHH Flight Prices

Compared to other flights, the IAD to HHH flight is much cheaper than the average and costs much less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.42, which is a bit above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $54 (14%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $332. Return trip prices are from the HHH to IAD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAD to HHH can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 53 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from IAD to HHH while comparing.

Destination alternative #1: Charleston AFB/International Airport (CHS) in Charleston, SC

  • 60 miles (97 km) away from HHH
  • Usually 44.59% less expensive than HHH
  • Nonstop flights available

See IAD to CHS flights

Destination alternative #2: Jacksonville International Airport (JAX) in Jacksonville, FL

  • 133 miles (214 km) away from HHH
  • Usually 41.63% less expensive than HHH
  • Nonstop flights available

See IAD to JAX flights

Destination alternative #3: Myrtle Beach International Airport (MYR) in Myrtle Beach, SC

  • 144 miles (232 km) away from HHH
  • Usually 26.22% less expensive than HHH
  • 1-layover flights available

See IAD to MYR flights

Destination alternative #4: Florence Regional Airport (FLO) in Florence, SC

  • 147 miles (237 km) away from HHH
  • Usually 24.89% less expensive than HHH
  • 1-layover flights available

See IAD to FLO flights

Destination alternative #5: Columbia Metropolitan Airport (CAE) in Columbia, SC

  • 121 miles (195 km) away from HHH
  • Usually 15.85% less expensive than HHH
  • Nonstop flights available

See IAD to CAE flights

Destination alternative #6: Augusta Regional at Bush Field Airport (AGS) in Augusta, GA

  • 108 miles (174 km) away from HHH
  • Usually 13.33% less expensive than HHH
  • 1-layover flights available

See IAD to AGS flights


Flight Questions Answered

Still have questions about flying from IAD to HHH? We’ve got answers.

Which airlines fly this route?

You can find 3 major airlines flying this route most often: American, Delta, United, and potentially more during busy seasons.

How far away is it from Hilton Head Airport to Washington Dulles International Airport?

The distance between the two airports is roughly 499 miles or 803 kilometers.

How long does it take to fly from IAD to HHH?

The real-world flight time for a nonstop IAD to HHH flight is about 1 hour 53 minutes.

How many flights go between Washington, DC and Hilton Head, SC?

It depends on the day of the week and the date, but a typical day might have around 44 available flights from IAD to HHH.


Airport Location Info


Departing Airport

Origination code IAD
Origination airport name Washington Dulles International Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77.5

Return Airport

Destination code HHH
Destination airport name Hilton Head Airport
City Hilton Head, SC
Country the United States
Latitude 32.2
Longitude -80.7


Late and Early Flight Data

Flights from IAD to HHH tend to depart later than the average flight. According to our recently updated data, 31% of flights departed 5 or more minutes late, and 18% of flights left 5 or more minutes early. On average you can expect to leave HHH heading for IAD about 35 minutes late. This does significantly impact arrival time, as the average landing time in Hilton Head, SC is about 33 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Mesa: 35 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.