The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Chicago O'Hare International ⇄ Hilton Head ORD–HHH

Airlines flew 417 flights between Chicago O'Hare International ORD in Chicago, IL and Hilton Head HHH in Hilton Head, SC in the twelve months to July 2026, both directions together: 20,863 passengers in 31,329 seats, 67% of them filled, and 375 pounds of freight. 781 miles, about 104 minutes in the air, on 2 airlines: Republic Airline (261), Envoy Air (156).

417
flights, twelve months
ORD-HHH: 211 · HHH-ORD: 206
20,863
passengers
67% of seats filled
781
miles
about 104 minutes airborne
2
airlines
2 aircraft types

Flights by month both directions

03060911214/257/2510/254/261217/26
By month, as a table
flights
4/258
5/2510
6/2516
7/2515
8/258
9/258
10/258
11/252
3/2613
4/2660
5/2680
6/26117
7/26121

Passengers by month

01,4452,8904,3355,7804/257/2510/254/265,6917/26
By month, as a table
passengers
4/25507
5/25657
6/25910
7/25843
8/25441
9/25417
10/25416
11/2582
3/26717
4/263,185
5/264,134
6/265,780
7/265,691

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Republic Airline YX26113,46168%scheduled passenger service
Envoy Air MQ1567,40264%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1753847619,264
Embraer-Emb-17033651,599

ORD → HHH this direction alone · flown April 2025 to July 2026

211 flights of 213 scheduled, 11,079 passengers in 15,849 seats, 350 pounds of freight. Republic Airline 132; Envoy Air 79.

HHH → ORD this direction alone · flown April 2025 to July 2026

206 flights of 211 scheduled, 9,784 passengers in 15,480 seats, 25 pounds of freight. Republic Airline 129; Envoy Air 77.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Chicago O'Hare International ORD and Hilton Head HHH; all routes.