Fare of the Day: Boston to San Diego $233 RT including all taxes

Fly from Boston to San Diego for $233 round-trip, including all taxes, on United, and American.

Travel any day of the week. We found seats available for travel in spring and fall, from April, May, October, and September. Fares may vary by a few dollars depending on dates.

See our San Diego fare page for a complete list of current finds.