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Boston to San Diego

US market · USD · Guide August 2026

Cheap flights from Boston to San Diego

Logan International (BOS) → San Diego International (SAN)

Guide from
$239
Typical ~$390 · one way economy
Time in air
~5.5h
Nonstop often available
Distance
2,582 mi
BOSSAN
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The BostonSan Diego route

Boston to San Diego is a coast-to-coast domestic pairing: about 2,582 miles between BOS and SAN. Nonstop BOS–SAN is often on the schedule, about 5.5 hours airborne over 2,582 miles. Red-eyes and Saturday-night stays change the total more than the map distance.

For BOS–SAN we show about $239 on the low end and around $390 as a more typical one-way economy total, USD, last reviewed August 2026. A $239 one-way is a sale-shaped guide, not a fare you can screenshot and demand. Taxes, bags, and seats change what you pay on the seller site.

Search BOS to SAN on Azurovia, compare airline-direct and travel-site totals on the same flights, then finish with the seller. We do not ticket. Keep their confirmation for changes.

Distance and time BOSSAN

Great-circle distance BOS–SAN is about 2,582 miles. Block time on a nonstop is typically near 5.5 hours; wind, routing, and which runway you use still move the clock. Connections on the same city pair add layover time on top of that flying.

San Diego is about 3 hours behind Boston on standard time (America/New_York vs America/Los_Angeles). Arrival clocks on SAN are local. That matters more on this pair than on a same-zone hop.

When BOS–SAN has a nonstop, that is usually the cleanest product. One-stop options still appear — they are worth opening only if the USD total is materially lower after you count the extra ground time.

Airports for Boston to San Diego

Both ends are in the United States: Logan International (BOS) to San Diego International (SAN). This is not an international itinerary, so the usual domestic bag and ID rules apply at the seller. Alternate metro airports can still beat this pair on price.

BOS is the only origin code we list in this metro. SAN is the arrival code we treat as primary for San Diego. A cheaper nearby airport only wins if the transfer still fits your plan. Search with “include nearby airports” when you want those codes in one results list.

Airport pages: BOS Logan International · SAN San Diego International

City hubs: Flights from Boston · Flights to San Diego

Bags on BOSSAN

US domestic Boston–San Diego inventory often includes basic economy. Cabin and checked bags may be extra — the result cards say so when we have that fact. A cheaper headline fare can lose once you add a carry-on.

Airlines often shown

American Airlines is among the names that commonly appear on BOS–SAN, alongside Delta, United, JetBlue. That is who often operates or sells this city pair in our catalog, not a daily guarantee. Live search is the inventory that exists for your dates.

American Airlines
Delta
United
JetBlue

When people fly

On Boston–San Diego, demand is often softer in Jan and Feb, with Sep and Oct also worth checking. US holidays still reprice this pair. Move a day on the results strip before you assume the first date you typed is the cheapest.

Jan
Feb
Sep
Oct

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We’ll email you if live fares on this city pair drop. Search with dates for a specific trip.

Questions about this city pair

How long is the flight from Boston to San Diego?

Nonstop BOS–SAN is typically about 5.5 hours over roughly 2,582 miles. Connections take longer; compare total trip time on the results page.

When are Boston to San Diego fares often lower?

Demand is usually softer in Jan and Feb on this route, but live prices move daily. Search a few nearby dates rather than assuming a season is always cheapest.

Which airlines fly Boston to San Diego?

Sellers commonly show American Airlines, Delta, United, JetBlue on this city pair. The set on any given day depends on schedule and which travel sites return a fare.

What do Boston–San Diego tickets usually cost?

Guide one-way economy totals cluster around $390, with sales near $239, in USD. Those are not a quote — live search is the price that matters.

Is BOS–SAN the only airport pair for this trip?

This guide uses BOS and SAN as the primary codes. If a seller offers another airport, it will show on live results when you include nearby airports.

Do I book Boston–San Diego with Azurovia?

No. Azurovia is a US metasearch. You compare airline and travel-site totals here, then complete the ticket with the seller you choose.

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