San Diego International ⇄ Baltimore/Washington International Thurgood Marshall SAN–BWI
Airlines flew 2,286 flights between San Diego International SAN in San Diego, CA and Baltimore/Washington International Thurgood Marshall BWI in Baltimore, MD in the twelve months to July 2026, both directions together: 313,286 passengers in 390,748 seats, 80% of them filled, and 795,128 pounds of freight. 2,295 miles, about 262 minutes in the air, on 3 airlines: Southwest Airlines Co. (2,276), Alaska Airlines Inc. (7), Delta Air Lines Inc. (3). 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 | 111 |
| 2/25 | 109 |
| 3/25 | 168 |
| 4/25 | 162 |
| 5/25 | 160 |
| 6/25 | 166 |
| 7/25 | 171 |
| 8/25 | 168 |
| 9/25 | 165 |
| 10/25 | 201 |
| 11/25 | 193 |
| 12/25 | 197 |
| 1/26 | 173 |
| 2/26 | 157 |
| 3/26 | 202 |
| 4/26 | 206 |
| 5/26 | 214 |
| 6/26 | 204 |
| 7/26 | 206 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 13,874 |
| 2/25 | 12,299 |
| 3/25 | 20,698 |
| 4/25 | 21,803 |
| 5/25 | 21,894 |
| 6/25 | 23,531 |
| 7/25 | 23,343 |
| 8/25 | 23,723 |
| 9/25 | 21,630 |
| 10/25 | 26,395 |
| 11/25 | 23,694 |
| 12/25 | 26,165 |
| 1/26 | 21,171 |
| 2/26 | 19,595 |
| 3/26 | 27,535 |
| 4/26 | 29,525 |
| 5/26 | 30,416 |
| 6/26 | 32,099 |
| 7/26 | 31,338 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 2,276 | 312,500 | 80% | scheduled passenger service |
| Alaska Airlines Inc. AS | 7 | 479 | 38% | charter passenger service |
| Delta Air Lines Inc. DL | 3 | 307 | 91% | charter passenger service, scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing B737 Max 800 | 1,333 | 175 | 185,892 |
| Boeing 737-800 | 686 | 175 | 96,957 |
| Boeing 737-700/700LR/Max 7 | 257 | 139 | 29,651 |
| Boeing 737-900ER | 5 | 178 | 352 |
| Boeing 757-200 | 2 | 72 | 140 |
| Boeing B737 Max 900 | 2 | 178 | 127 |
| Airbus Industrie A321-200n | 1 | 194 | 167 |
SAN → BWI this direction alone · flown January 2025 to July 2026
1,143 flights of 1,160 scheduled, 161,573 passengers in 196,265 seats, 515,463 pounds of freight. Southwest Airlines Co. 1,137; Alaska Airlines Inc. 3; Delta Air Lines Inc. 3.
BWI → SAN this direction alone · flown January 2025 to July 2026
1,143 flights of 1,159 scheduled, 151,713 passengers in 194,483 seats, 279,665 pounds of freight. Southwest Airlines Co. 1,139; Alaska Airlines Inc. 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: San Diego International SAN and Baltimore/Washington International Thurgood Marshall BWI; all routes.