In the last 3 days, the lowest price for a flight from Boston to San Diego was $102 for a one-way ticket and $237 for a round-trip. Do I need a passport to fly between Boston and San Diego? No, a passport isn't needed to fly from Boston to San Diego., Fly one-way from Boston Logan to San Diego starting at $129. Bundle your Southwest Airlines® flight with a hotel or rental car booking and find even more savings., Are you searching for American Airlines flights from Boston to San Diego? Find the best selections and fly in style., Don’t just settle for cheap flights from Boston to San Diego. JetBlue raises the bars with free wi-fi for all, and live TV & movies at every seat. Book a low fare from BOS to SAN now., Find the best deals on flights from Boston Logan International (BOS) to San Diego (SANA). Compare prices from hundreds of major travel agents and airlines, all in one search., Boston (BOS) to San Diego (SAN) flight schedule. The monthly calendar shows every direct flight departure from Boston Logan International Airport (BOS) with all airlines. Click on a date to see a list of flights or search for the best prices..