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

Ontario International ⇄ Boeing Fld/King County International ONT–BFI

Airlines flew 799 flights between Ontario International ONT in Ontario, CA and Boeing Fld/King County International BFI in Seattle, WA in the twelve months to July 2026, both directions together: 0 passengers, and 30,602,361 pounds of freight. 961 miles, about 129 minutes in the air, on 1 airline: United Parcel Service (799). Planning to fly it yourself? The weather and winds along this route right now.

799
flights, twelve months
ONT-BFI: 279 · BFI-ONT: 520
0
passengers
no seats reported (cargo)
961
miles
about 129 minutes airborne
1
airline
4 aircraft types

Flights by month both directions

0234670931/254/257/2510/251/264/26707/26
By month, as a table
flights
1/2558
2/2574
3/2574
4/2583
5/2573
6/2561
7/2563
8/2558
9/2556
10/2563
11/2559
12/2593
1/2654
2/2656
3/2664
4/2682
5/2667
6/2677
7/2670

Passengers by month

000111/254/257/2510/251/264/2607/26
By month, as a table
passengers
1/250
2/250
3/250
4/250
5/250
6/250
7/250
8/250
9/250
10/250
11/250
12/250
1/260
2/260
3/260
4/260
5/260
6/260
7/260

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Parcel Service 5X7990scheduled cargo service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 767-300/300ER53500
Boeing 757-20022700
McDonnell Douglas MD-112700
Airbus Industrie A300-600/R/CF/RCF1000

ONT → BFI this direction alone · flown January 2025 to July 2026

279 flights of 279 scheduled, 0 passengers, 15,499,161 pounds of freight, 1,450,099 pounds of mail. United Parcel Service 279.

BFI → ONT this direction alone · flown January 2025 to July 2026

520 flights of 520 scheduled, 0 passengers, 15,103,200 pounds of freight, 2,424,058 pounds of mail. United Parcel Service 520.

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: Ontario International ONT and Boeing Fld/King County International BFI; all routes.