Cheap flights from Boston, MA to San Diego, CA
Flights starting at $100. Choose between JetBlue Airways, Spirit Airlines, or Alaska Airlines to find the best price.
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Tips to know when travelling to San Diego
Cheapest one-way trip | $100 |
|---|---|
Cheapest nonstop round-trip | $171 |
Cheapest round-trip | $237 |
Average round-trip | $416 |
Nonstop flights in June | $171 – $407 |
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Book your trip to arrive at San Diego International, or McClellan–Palomar. The distance between Boston and San Diego is 4160 km. The most popular airlines for this route are JetBlue Airways, Spirit Airlines, Alaska Airlines, and United Airlines. Boston and San Diego have 51 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from Boston to San Diego in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 26.05 - Sat 01.06
| Airline | Sun 26.05 | Mon 27.05 | Tue 28.05 | Wed 29.05 | Thu 30.05 | Fri 31.05 | Sat 01.06 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 1 | |
| 1 | 1 | 2 | 1 | 2 | 1 | 2 |
Weekly direct flights for Sun 02.06 - Sat 08.06
| Airline | Sun 02.06 | Mon 03.06 | Tue 04.06 | Wed 05.06 | Thu 06.06 | Fri 07.06 | Sat 08.06 |
|---|---|---|---|---|---|---|---|
| --- | 1 | 3 | 3 | 3 | 1 | 1 | |
| 1 | 1 | 2 | 1 | 2 | 1 | 2 |
Weekly direct flights for Sun 09.06 - Sat 15.06
| Airline | Sun 09.06 | Mon 10.06 | Tue 11.06 | Wed 12.06 | Thu 13.06 | Fri 14.06 | Sat 15.06 |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 3 | 3 | 2 | 2 | 2 | |
| 1 | 1 | 2 | 1 | --- | 2 | 1 |
Weekly direct flights for Sun 16.06 - Sat 22.06
| Airline | Sun 16.06 | Mon 17.06 | Tue 18.06 | Wed 19.06 | Thu 20.06 | Fri 21.06 | Sat 22.06 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| 2 | 1 | 2 | 2 | 2 | 2 | 2 |
Check-in for a flight from Boston to San Diego
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
| Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
| Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
| United Airlines | UAL | UA | Yes | No |
Weather in San Diego
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 18°C | 10°C |
| February | 17°C | 10°C |
| March | 18°C | 11°C |
| April | 19°C | 12°C |
| May | 20°C | 14°C |
| June | 22°C | 16°C |
| July | 24°C | 18°C |
| August | 25°C | 19°C |
| September | 25°C | 19°C |
| October | 23°C | 16°C |
| November | 21°C | 13°C |
| December | 17°C | 11°C |
14 day forecast
Frequently asked questions
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