Boise to San Diego flights

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Airlines seen: Alaska Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
Reported fastest flight: 2h 15m
Non-stop: Yes

Lowest observed

€176

Cheapest month

October 2026

Last checked

10 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €69

Lowest observed

26 Oct 2026

One way

Cheapest observed day · Last checked: 20 Sep 2026

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Short answer

We have seen Alaska Airlines fares from Boise to San Diego. The lowest fare our own searches returned is €176, seen on 3 Oct 2026. October 2026 is the cheapest month in our observations, at €176. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

Explore the fares we observed from Boise to San Diego. Prices move often, so pick your dates to see the latest options.

Route distance: 1,215 km
Reported fastest flight: 2h 15m
Airlines seen: Alaska Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
Seen on fares with a connection: Southwest Airlines
Alternative airports: CLD

Route-level information; individual journeys vary.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Airport to city: straight-line distance

Boise Air Terminal/Gowen Field (BOI) → Boise, city gazetteer reference point (43.6150, -116.2023): ≈ 6 km.
San Diego International Airport (SAN) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 4 km.
McClellan-Palomar Airport (CLD) → San Diego, city gazetteer reference point (32.7153, -117.1573): ≈ 47 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.