Ontario International ⇄ Oakland San Francisco Bay ONT–OAK
Airlines flew 4,186 flights between Ontario International ONT in Ontario, CA and Oakland San Francisco Bay OAK in Oakland, CA in the twelve months to July 2026, both directions together: 270,811 passengers in 458,757 seats, 59% of them filled, and 76,167,671 pounds of freight. 362 miles, about 55 minutes in the air, on 6 airlines: Southwest Airlines Co. (2,940), United Parcel Service (706), Federal Express Corporation (530), Kalitta Air LLC (8) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 342 |
| 2/25 | 328 |
| 3/25 | 369 |
| 4/25 | 363 |
| 5/25 | 394 |
| 6/25 | 363 |
| 7/25 | 371 |
| 8/25 | 373 |
| 9/25 | 360 |
| 10/25 | 381 |
| 11/25 | 350 |
| 12/25 | 398 |
| 1/26 | 335 |
| 2/26 | 322 |
| 3/26 | 339 |
| 4/26 | 334 |
| 5/26 | 334 |
| 6/26 | 320 |
| 7/26 | 340 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 19,313 |
| 2/25 | 19,830 |
| 3/25 | 26,199 |
| 4/25 | 24,245 |
| 5/25 | 26,792 |
| 6/25 | 24,535 |
| 7/25 | 22,751 |
| 8/25 | 26,462 |
| 9/25 | 27,255 |
| 10/25 | 26,462 |
| 11/25 | 25,638 |
| 12/25 | 25,225 |
| 1/26 | 19,225 |
| 2/26 | 19,365 |
| 3/26 | 22,442 |
| 4/26 | 19,880 |
| 5/26 | 20,794 |
| 6/26 | 19,976 |
| 7/26 | 18,087 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 2,940 | 270,665 | 59% | scheduled passenger service |
| United Parcel Service 5X | 706 | 0 | scheduled cargo service | |
| Federal Express Corporation FX | 530 | 0 | scheduled cargo service | |
| Kalitta Air LLC KAQ | 8 | 0 | charter cargo service | |
| ADVANCED AIR, LLC AN | 1 | 6 | 86% | charter passenger service |
| Delta Air Lines Inc. DL | 1 | 140 | 78% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-700/700LR/Max 7 | 1,592 | 140 | 137,377 |
| Boeing 767-300/300ER | 989 | 0 | 0 |
| Boeing B737 Max 800 | 877 | 175 | 88,919 |
| Boeing 737-800 | 471 | 175 | 44,369 |
| McDonnell Douglas MD-11 | 167 | 0 | 0 |
| Airbus Industrie A300-600/R/CF/RCF | 72 | 0 | 0 |
| Boeing 747-400 | 8 | 0 | 0 |
| Boeing 757-200 | 6 | 0 | 0 |
| Cessna Citationjet/CJ1/CJ2/CJ3 | 1 | 7 | 6 |
| Boeing B777-F | 1 | 0 | 0 |
| Boeing 737-900ER | 1 | 180 | 140 |
| Cessna 208 Caravan | 1 | 0 | 0 |
ONT → OAK this direction alone · flown January 2025 to July 2026
1,969 flights of 1,968 scheduled, 135,307 passengers in 229,463 seats, 38,400,015 pounds of freight, 20,340 pounds of mail. Southwest Airlines Co. 1,466; Federal Express Corporation 272; United Parcel Service 225; Kalitta Air LLC 4; ADVANCED AIR, LLC 1; Delta Air Lines Inc. 1.
OAK → ONT this direction alone · flown January 2025 to July 2026
2,217 flights of 2,210 scheduled, 135,504 passengers in 229,294 seats, 37,767,656 pounds of freight, 6,488,647 pounds of mail. Southwest Airlines Co. 1,474; United Parcel Service 481; Federal Express Corporation 258; Kalitta Air LLC 4.
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 Oakland San Francisco Bay OAK; all routes.