starting at $128
starting at $168
starting at $106
starting at $154
starting at $208
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Boston to San Diego. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Boston to San Diego, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route Boston — San Diego is served by many carriers — 5 in total, including JetBlue Airways, Alaska Airlines, American Airlines, Frontier Airlines, and United Airlines. This gives passengers wide opportunities: from finding the lowest fare (from $106) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
starting at $128
starting at $168
starting at $106
starting at $154
starting at $208
Boston — San Diego
05/01/2026
Departure
Direct flight
B6619
starting at $375
Boston — San Diego
05/14/2026
Departure
Direct flight
B6919
starting at $400
Boston — San Diego
05/09/2026
Departure
Direct flight
AS389
starting at $168
Boston — San Diego
06/09/2026
Departure
Direct flight
B6619
starting at $128
Boston — San Diego
09/14/2026
Departure
Direct flight
B6319
starting at $210
Boston — San Diego
09/15/2026
Departure
Direct flight
B6319
starting at $241
Boston — San Diego
09/20/2026
Departure
Direct flight
AS389
starting at $276
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The cheapest one-way flight from Boston to San Diego departs on 06/09/2026, is operated by American Airlines and costs $106
There is no information about the cheapest roundtrip flight from Boston to San Diego
Fastest flight from Boston to San Diego takes 6h 14m
There are direct flights on this route 6 days a week: Su, Mo, Tu, Th, Fr, and Sa
The distance between Boston and San Diego is 4149km (2572 miles). The time difference between Boston and San Diego is 3h
The cheapest flight ticket from Boston to San Diego according to data for the last 48 hours costs $106
Often the best time to buy tickets from Boston to San Diego is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Boston to San Diego can be found flying in these months: June, September, May.
The fastest flights from Boston to San Diego start from 6 hours 14 minutes in the air.
The following airlines operate direct flights on the route Boston — San Diego: JetBlue Airways, Alaska Airlines
In different months, ticket prices from Boston to San Diego vary: minimum — $106 (June 2026), maximum — $129 (May 2026). Typically, the flight costs $116–$241.
On the Boston — San Diego route, ticket prices are stable. Whichever month you choose, the difference will be minimal.
There is a slight difference: it's a bit cheaper in June 2026–September 2026 (averaging $109) and slightly more in May 2026–June 2026 ($118). But overall, the difference is small.
On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 7%. Book whenever it's convenient.
Monthly price variation is just 8.4%. Ticket costs on this route are among the most predictable.
We couldn't find any special offers for flights from Boston to San Diego