Routes and flights · the DOT's airline reports, August 2025 to July 2026

Washington Dulles International ⇄ Ontario International IAD–ONT

Airlines flew 3 flights between Washington Dulles International IAD in Washington, DC and Ontario International ONT in Ontario, CA in the twelve months to July 2026, both directions together: 405 passengers in 534 seats, 76% of them filled. 2,242 miles, about 319 minutes in the air, on 1 airline: Alaska Airlines Inc. (3). Planning to fly it yourself? The weather and winds along this route right now.

flights, twelve months

IAD-ONT: 3

405

passengers

76% of seats filled

2,242

miles

about 319 minutes airborne

airline

1 aircraft type

Flights by month both directions

By month, as a table

	flights
9/25	1
10/25	1
12/25	1

Passengers by month

By month, as a table

	passengers
9/25	133
10/25	102
12/25	170

The airlines twelve months, both directions

Airline	Flights	Passengers	Seats filled	Service
Alaska Airlines Inc. AS	3	405	76%	scheduled passenger service

The aircraft as the airlines report their types

Aircraft	Flights	Seats a flight	Passengers
Boeing B737 Max 900	3	178	405

IAD → ONT this direction alone · flown September 2025 to December 2025

3 flights, 405 passengers in 534 seats. Alaska Airlines Inc. 3.

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 Ontario International ONT; all routes.