Ontario International ⇄ San Diego International ONT–SAN
Airlines flew 213 flights between Ontario International ONT in Ontario, CA and San Diego International SAN in San Diego, CA in the twelve months to July 2026, both directions together: 8,012 passengers in 12,259 seats, 65% of them filled, and 3,700,182 pounds of freight. 94 miles, about 26 minutes in the air, on 10 airlines: Federal Express Corporation (121), Southwest Airlines Co. (21), Alaska Airlines Inc. (18), Delta Air Lines Inc. (17) and 6 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 | 15 |
| 2/25 | 10 |
| 3/25 | 19 |
| 4/25 | 16 |
| 5/25 | 11 |
| 6/25 | 8 |
| 7/25 | 12 |
| 8/25 | 10 |
| 9/25 | 14 |
| 10/25 | 23 |
| 11/25 | 18 |
| 12/25 | 43 |
| 1/26 | 29 |
| 2/26 | 17 |
| 3/26 | 15 |
| 4/26 | 12 |
| 5/26 | 11 |
| 6/26 | 9 |
| 7/26 | 12 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 29 |
| 2/25 | 261 |
| 3/25 | 1,011 |
| 4/25 | 451 |
| 5/25 | 0 |
| 6/25 | 0 |
| 7/25 | 269 |
| 8/25 | 0 |
| 9/25 | 711 |
| 10/25 | 1,018 |
| 11/25 | 121 |
| 12/25 | 1,256 |
| 1/26 | 2,004 |
| 2/26 | 841 |
| 3/26 | 1,069 |
| 4/26 | 154 |
| 5/26 | 125 |
| 6/26 | 0 |
| 7/26 | 713 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Federal Express Corporation FX | 121 | 0 | scheduled cargo service | |
| Southwest Airlines Co. WN | 21 | 2,091 | 63% | scheduled passenger service |
| Alaska Airlines Inc. AS | 18 | 2,297 | 74% | scheduled passenger service |
| Delta Air Lines Inc. DL | 17 | 2,007 | 67% | scheduled passenger service |
| United Parcel Service 5X | 15 | 0 | scheduled cargo service | |
| American Airlines Inc. AA | 8 | 982 | 64% | scheduled passenger service |
| SkyWest Airlines Inc. OO | 7 | 238 | 45% | scheduled passenger service |
| Horizon Air QX | 3 | 184 | 81% | scheduled passenger service |
| United Air Lines Inc. UA | 2 | 213 | 62% | scheduled passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 1 | 0 | 0% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 767-300/300ER | 111 | 0 | 0 |
| Airbus Industrie A300-600/R/CF/RCF | 17 | 0 | 0 |
| Boeing 737-800 | 13 | 166 | 1,086 |
| Airbus Industrie A321Neoxlr | 12 | 190 | 1,614 |
| Boeing 737-700/700LR/Max 7 | 10 | 140 | 713 |
| Embraer ERJ-175 | 10 | 76 | 422 |
| Boeing B737 Max 800 | 8 | 174 | 1,084 |
| Boeing B737 Max 900 | 8 | 178 | 933 |
| Airbus Industrie A321-200n | 7 | 194 | 838 |
| Boeing 737-900ER | 7 | 178 | 1,109 |
| Boeing 757-200 | 5 | 0 | 0 |
| Cessna 208 Caravan | 3 | 0 | 0 |
| A200-100 BD-500-1A10 | 1 | 109 | 103 |
| A220-300 BD-500-1A11 | 1 | 130 | 110 |
ONT → SAN this direction alone · flown January 2025 to July 2026
123 flights of 76 scheduled, 6,137 passengers in 9,723 seats, 1,691,001 pounds of freight, 35,488 pounds of mail. Federal Express Corporation 54; Southwest Airlines Co. 20; Delta Air Lines Inc. 16; American Airlines Inc. 8; United Parcel Service 7; Alaska Airlines Inc. 7; SkyWest Airlines Inc. 7; Horizon Air 2; United Air Lines Inc. 2.
SAN → ONT this direction alone · flown January 2025 to July 2026
90 flights of 75 scheduled, 1,875 passengers in 2,536 seats, 2,009,181 pounds of freight. Federal Express Corporation 67; Alaska Airlines Inc. 11; United Parcel Service 8; Delta Air Lines Inc. 1; Horizon Air 1; Sun Country Airlines d/b/a MN Airlines 1; Southwest Airlines Co. 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: Ontario International ONT and San Diego International SAN; all routes.