Cheap flights from Boston, MA to San Diego, CA
Flights starting at £66. Choose between Spirit Airlines, Frontier Airlines, or JetBlue Airways to find the best price.
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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 Spirit Airlines, Frontier Airlines, JetBlue Airways, United Airlines, and Alaska Airlines. Boston and San Diego have 327 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 Mon 08.04 - Sun 14.04
| Airline | Mon 08.04 | Tue 09.04 | Wed 10.04 | Thu 11.04 | Fri 12.04 | Sat 13.04 | Sun 14.04 |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 2 | 2 | 2 | 1 | 1 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 15.04 - Sun 21.04
| Airline | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 | Sun 21.04 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 2 | 2 | 2 | 1 | 2 | |
| 1 | 1 | 1 | 1 | 1 | --- | 1 |
Weekly direct flights for Mon 22.04 - Sun 28.04
| Airline | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 | Sun 28.04 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 2 | 2 | --- | 1 | 2 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 29.04 - Sun 05.05
| Airline | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 | Sun 05.05 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 3 | 3 | 3 | 1 | 3 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Check-in for a flight from Boston to San Diego
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
| United Airlines | UAL | UA | Yes | No |
| Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
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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