4 airlines fly nonstop from Boston to San Diego.
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| Alaska Airlines | BOS Boston Logan International Airport | SAN San Diego International Airport |
| Delta Air Lines | BOS Boston Logan International Airport | SAN San Diego International Airport |
| JetBlue | BOS Boston Logan International Airport | SAN San Diego International Airport |
| Southwest Airlines | BOS Boston Logan International Airport | SAN San Diego International Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
3 miles (4.8 km) from the city centre. 25.3 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Bus | MTS Route 992 to the Santa Fe Depot downtown, every 15 minutes | about 15m | $3.00 one way (adult) |
| Shuttle | Free San Diego Flyer shuttle to Old Town Transit Center for trolley and train connections | – | free |
Domestic travel: a REAL ID-compliant license or other acceptable ID, such as a US passport, is required to board flights within the US.
San Diego is 3 hours behind Boston. San Diego uses the US dollar (USD).
Read the San Diego guide: when to go, weather, airports and tips
Nonstop flight times vary by airline and season; flights with a connection take longer.
As of October 2026, Alaska Airlines, Delta Air Lines, JetBlue and Southwest Airlines fly this route nonstop.
About 2,579 miles (4,150 km), measured between the city centres.
San Diego is 3 hours behind Boston.
Domestic travel: a REAL ID-compliant license or other acceptable ID, such as a US passport, is required to board flights within the US.
MTS Route 992 to the Santa Fe Depot downtown, every 15 minutes, about 15 minutes, $3.00 one way (adult).
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.