There are most likely no direct flights on the Boston — San Diego route
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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There are most likely no direct flights on the Boston — San Diego route
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Boston to San Diego
Boston — San Diego
11/10/2026
Departure
Direct flight
WN802
starting at $118
Boston — San Diego
12/23/2026
Departure
Direct flight
AS389
starting at $295
The Boston — San Diego route is served by multiple airlines, including Southwest Airlines, Alaska Airlines, and JetBlue Airways. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $118, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.
The cheapest flight ticket from Boston to San Diego according to data for the last 48 hours costs $118
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: November.
The fastest flights from Boston to San Diego start from 6 hours 20 minutes in the air.
The following airlines operate direct flights on the route Boston — San Diego: Southwest Airlines, Alaska Airlines
The cheapest one-way flight from Boston to San Diego departs on 11/10/2026, is operated by Southwest Airlines and costs $118
The cheapest roundtrip flight from Boston to San Diego departs on 12/04/2026, is operated by Southwest Airlines and costs $130
Fastest flight from Boston to San Diego takes 6h 20m
There are direct flights on this route 2 days a week: Tu and We
The distance between Boston and San Diego is 4149km (2572 miles). There are 56 direct flights from Boston to San Diego. The time difference between Boston and San Diego is 3h. Flights from Boston begin at 6:00 AM. The latest flight from Boston departs at 6:17 PM
We couldn't find any special offers for flights from Boston to San Diego
