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

Washington Dulles International ⇄ Harrisburg International IAD–MDT

Airlines flew 2,192 flights between Washington Dulles International IAD in Washington, DC and Harrisburg International MDT in Harrisburg, PA in the twelve months to July 2026, both directions together: 91,292 passengers in 110,056 seats, 83% of them filled, and 33,307 pounds of freight. 93 miles, about 27 minutes in the air, on 7 airlines: CommuteAir LLC dba CommuteAir (2,034), GoJet Airlines LLC d/b/a United Express (150), Delta Air Lines Inc. (2), Tradewind Aviation (2) and 3 more. Planning to fly it yourself? The weather and winds along this route right now.

2,192
flights, twelve months
IAD-MDT: 1,092 · MDT-IAD: 1,100
91,292
passengers
83% of seats filled
93
miles
about 27 minutes airborne
7
airlines
8 aircraft types

Flights by month both directions

0581151722301/254/257/2510/251/264/262247/26
By month, as a table
flights
1/25117
2/2599
3/25128
4/25175
5/25200
6/25230
7/25200
8/25187
9/25159
10/25184
11/25159
12/25174
1/26163
2/26158
3/26191
4/26180
5/26191
6/26222
7/26224

Passengers by month

02,4564,9127,3689,8241/254/257/2510/251/264/269,3817/26
By month, as a table
passengers
1/254,934
2/254,233
3/255,565
4/256,963
5/258,640
6/259,824
7/258,829
8/258,147
9/257,022
10/257,606
11/256,222
12/256,990
1/266,206
2/266,572
3/267,952
4/267,654
5/268,009
6/269,531
7/269,381

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
CommuteAir LLC dba CommuteAir C52,03485,43884%scheduled passenger service
GoJet Airlines LLC d/b/a United Express G71505,34171%scheduled passenger service
Delta Air Lines Inc. DL29767%charter passenger service
Tradewind Aviation TJ21275%charter passenger service
United Air Lines Inc. UA232974%scheduled passenger service
Alaska Airlines Inc. AS100%charter passenger service
Republic Airline YX17599%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer-1452,0345085,438
Bombardier CRJ550150505,341
Pilatus PC-122812
Boeing 757-20027297
Embraer ERJ-17517675
Boeing B737 Max 90011780
Boeing 777-200ER/200LR/233LR1276192
Boeing B737 Max 8001166137

IAD → MDT this direction alone · flown January 2025 to July 2026

1,092 flights of 1,108 scheduled, 43,979 passengers in 54,734 seats. CommuteAir LLC dba CommuteAir 1,013; GoJet Airlines LLC d/b/a United Express 75; Alaska Airlines Inc. 1; Delta Air Lines Inc. 1; Tradewind Aviation 1; Republic Airline 1.

MDT → IAD this direction alone · flown January 2025 to July 2026

1,100 flights of 1,119 scheduled, 47,313 passengers in 55,322 seats, 33,307 pounds of freight, 774 pounds of mail. CommuteAir LLC dba CommuteAir 1,021; GoJet Airlines LLC d/b/a United Express 75; United Air Lines Inc. 2; Delta Air Lines Inc. 1; Tradewind Aviation 1.

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: Washington Dulles International IAD and Harrisburg International MDT; all routes.