Cheap flights from San Diego to Boston
From 257 USD — compare hundreds of airlines
Direct flightsCheapest: 2026-07 · 143 US$
Prices by date
211 US$
05/07
204 US$
06/07
173 US$
07/07
173 US$
08/07
173 US$
09/07
173 US$
10/07
173 US$
11/07
173 US$
12/07
143 US$
13/07
Airlines on this route
FAQ
What's the cheapest month to fly San Diego to Boston?
Usually 2026-07, from 143 USD.
Are there direct flights from San Diego to Boston?
We show both direct and connecting options — filter to compare.