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

Washington Dulles International ⇄ Spokane International IAD–GEG

Airlines flew 6 flights between Washington Dulles International IAD in Washington, DC and Spokane International GEG in Spokane, WA in the twelve months to July 2026, both directions together: 875 passengers in 1,007 seats, 87% of them filled. 2,082 miles, about 282 minutes in the air, on 3 airlines: Allegiant Air (4), Alaska Airlines Inc. (1), Delta Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.

6
flights, twelve months
IAD-GEG: 3 · GEG-IAD: 3
875
passengers
87% of seats filled
2,082
miles
about 282 minutes airborne
3
airlines
3 aircraft types

Flights by month both directions

0012224/252124/2617/26
By month, as a table
flights
4/252
10/252
11/251
4/262
7/261

Passengers by month

0781572363143114/25314783104/261737/26
By month, as a table
passengers
4/25311
10/25314
11/2578
4/26310
7/26173

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Allegiant Air G4462487%charter passenger service
Alaska Airlines Inc. AS117397%scheduled passenger service
Delta Air Lines Inc. DL17872%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A320-100/2004180624
Boeing B737 Max 9001178173
A200-100 BD-500-1A10110978

IAD → GEG this direction alone · flown April 2025 to July 2026

3 flights, 487 passengers in 538 seats. Allegiant Air 2; Alaska Airlines Inc. 1.

GEG → IAD this direction alone · flown April 2025 to April 2026

3 flights, 388 passengers in 469 seats. Allegiant Air 2; Delta Air Lines Inc. 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 Spokane International GEG; all routes.