Cheap flights from Boston Logan to San Diego International from $249
Updated 2026-07-25
2582 miles great-circle distance, typically flown in 5h 36m with 7 airlines operating direct service from Boston Logan (BOS) to San Diego International (SAN). Fares on this corridor stay relatively stable across the year — booking 4–8 weeks ahead and choosing a midweek departure typically secures the best price.
Flying from Boston Logan
Boston Logan International sits across the harbour from downtown — one of the most central airport locations in the country, just 3 miles from the Financial District. The Silver Line SL1 bus runs free for arriving passengers from each terminal directly to South Station in around 15 minutes; the MBTA Blue Line via the airport shuttle reaches downtown Boston in 25 minutes. JetBlue has its largest base here; Delta and AA add significant capacity, and transatlantic service from Aer Lingus, BA, Virgin and Lufthansa is dense.
Arriving in San Diego
San Diego International is 3 miles from downtown San Diego — the second most central US airport after BOS. MTS Route 992 runs from the terminals directly to downtown San Diego in 15 minutes for $2.50. Fares from US East Coast cities peak around Comic-Con (mid-July) and the San Diego Padres' major series; September–November is consistently the cheapest window with the best weather.
Who flies BOS to SAN?
| Airline | IATA | Flight time | Cabin |
| JetBlue Airways | B6 | 5h 36m | Economy |
| Delta Air Lines | DL | 5h 36m | Economy |
| American Airlines | AA | 5h 36m | Economy |
| United Airlines | UA | 5h 36m | Economy |
| Southwest Airlines | WN | 5h 36m | Economy |
| Spirit Airlines | NK | 5h 36m | Economy |
| Alaska Airlines | AS | 5h 36m | Economy |
7 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Boston to San Diego FAQs
Direct flights from Boston Logan (BOS) to San Diego International (SAN) take approximately 5h 36m for the 2582-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
7 carriers operate direct service from Boston Logan (BOS) to San Diego International (SAN): JetBlue Airways, Delta Air Lines, American Airlines, United Airlines, Southwest Airlines and 2 more. Frequencies vary by season and carrier — JetBlue Airways typically operates the highest weekly count on this corridor.
No — United States is domestic travel for US citizens. A US passport is not required for the 50 states, DC or US territories (Puerto Rico, US Virgin Islands, Guam, American Samoa, Northern Mariana Islands), though Real ID-compliant ID is required at TSA from May 2025.
San Diego International (SAN) is the primary international airport for San Diego. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.