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

Greenville Spartanburg International ⇄ Washington Dulles International GSP–IAD

Airlines flew 1,706 flights between Greenville Spartanburg International GSP in Greer, SC and Washington Dulles International IAD in Washington, DC in the twelve months to July 2026, both directions together: 76,221 passengers in 85,985 seats, 89% of them filled, and 3,039 pounds of freight. 384 miles, about 65 minutes in the air, on 8 airlines: CommuteAir LLC dba CommuteAir (1,573), GoJet Airlines LLC d/b/a United Express (112), Mesa Airlines Inc. (12), Republic Airline (3) and 4 more. Planning to fly it yourself? The weather and winds along this route right now.

1,706
flights, twelve months
GSP-IAD: 852 · IAD-GSP: 854
76,221
passengers
89% of seats filled
384
miles
about 65 minutes airborne
8
airlines
8 aircraft types

Flights by month both directions

0581161732311/254/257/2510/251/264/261787/26
By month, as a table
flights
1/25120
2/25104
3/25172
4/25172
5/25195
6/25231
7/25206
8/25183
9/25140
10/25124
11/25107
12/25113
1/26101
2/26103
3/26130
4/26180
5/26177
6/26170
7/26178

Passengers by month

02,5565,1127,66810,2241/254/257/2510/251/264/268,1467/26
By month, as a table
passengers
1/254,623
2/254,338
3/257,166
4/257,461
5/258,831
6/2510,224
7/259,048
8/257,995
9/256,577
10/255,804
11/254,913
12/255,114
1/264,381
2/264,751
3/265,843
4/267,586
5/267,593
6/267,518
7/268,146

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
CommuteAir LLC dba CommuteAir C51,57370,30389%scheduled passenger service
GoJet Airlines LLC d/b/a United Express G71124,47980%scheduled passenger service
Mesa Airlines Inc. YV1278189%scheduled passenger service
Republic Airline YX313361%scheduled passenger service
Delta Air Lines Inc. DL226893%scheduled passenger service
United Air Lines Inc. UA219678%scheduled passenger service
PSA Airlines Inc. OH16194%scheduled passenger service
CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF100%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer-1451,5735070,303
Bombardier CRJ550112504,479
Embraer ERJ-1751573914
Airbus Industrie A3192129211
Canadair RJ-70016561
Boeing 737-700/700LR/Max 71126101
Bombardier Challenger 604/6051300
Airbus Industrie A320-100/2001157152

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

852 flights of 869 scheduled, 37,937 passengers in 42,794 seats. CommuteAir LLC dba CommuteAir 787; GoJet Airlines LLC d/b/a United Express 56; Mesa Airlines Inc. 6; Republic Airline 2; PSA Airlines Inc. 1.

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

854 flights of 866 scheduled, 38,284 passengers in 43,191 seats, 3,039 pounds of freight. CommuteAir LLC dba CommuteAir 786; GoJet Airlines LLC d/b/a United Express 56; Mesa Airlines Inc. 6; Delta Air Lines Inc. 2; United Air Lines Inc. 2; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 1; Republic Airline 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: Greenville Spartanburg International GSP and Washington Dulles International IAD; all routes.