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Cheapest cached fares Boston → San Diego; direct flights available (e.g. AS). · Based on 4 fares found by travellers in the last 48h
Best value: Sep — fares from €115 and ~25°C daytime.
Flights from Boston to San Diego start around €115 (direct flights available). Range seen recently: €115–117, based on 4 fares found by travellers.
Fares found by travellers in the last 48 hours — refreshed daily.
In Jan, San Diego typically sees ~20°C daytime highs and 8 rainy days.
3★+ hotels from €128/night (39 hotels sampled, ~3 weeks out).
Top-rated tours and tickets from €57 — book ahead for the popular ones.
Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.
From balmy beaches with a laid-back attitude to a gleaming modern image, San Diego offers much for the tourist to enjoy. Situated on the Southern California seacoast, San Diego is the second largest city in the state, with 1.4 million residents (2020), and has long attracted travelers for its ideal climate, miles of beaches, and location on the Mexican border right across from Tijuana. But there's much more here than surfer culture and a quick hop across the border.
Guide content from Wikivoyage contributors (CC BY-SA).
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Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-07-23. Some links earn Stayonomy a commission at no cost to you.