€103 Cheap Flights Boise to San Diego (BOI-SAN)

View €103 flight on Sun, 11 Oct 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to San Diego Intl. Airport (SAN)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Boise to San Diego (BOI-SAN)

Prices were available within the past 7 days and start at €103 for one-way flights and €228 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€228 Return, found 2 days ago
€228
Return
found 2 days ago
Select Delta flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €228 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€236 Return, found 2 days ago
€236
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €236 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€259 Return, found 2 days ago
€259
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €259 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€280 Return, found 2 days ago
€280
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €280 found 2 days ago
Delta
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€287 Return, found 2 days ago
€287
Return
found 2 days ago
Select Delta flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €287 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€292 Return, found 2 days ago
€292
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €292 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€314 Return, found 2 days ago
€314
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €314 found 2 days ago
United
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€335 Return, found 2 days ago
€335
Return
found 2 days ago
Select United flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €335 found 2 days ago
American Airlines
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€385 Return, found 2 days ago
€385
Return
found 2 days ago
Select American Airlines flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €385 found 2 days ago
Delta
Sat, 30 May - Mon, 1 Jun
BOI
Boise
SAN
San Diego
€399 Return, found 2 days ago
€399
Return
found 2 days ago
Select Delta flight, departing Sat, 30 May from Boise to San Diego, returning Mon, 1 Jun, priced at €399 found 2 days ago

Find the cheapest month to fly from Boise (BOI) to San Diego (SAN)

April is typically the cheapest month to fly

From €114 - €176 per traveller.

Frequently asked questions

How much is a flight from BOI to San Diego Intl. Airport (SAN)?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Boise Airport to San Diego Intl. Airport (SAN) start from €228. Book now to get the best price for your adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BOI to San Diego Intl. Airport (SAN)?
Most flights can be cancelled online, but whether or not you incur a fee depends on your airline. If you do have to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Boise Airport (BOI) to SAN that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Boise Airport (BOI) to San Diego Intl. Airport (SAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Boise Airport to SAN?
It's just 1,200 kilometres from BOI to San Diego Intl. Airport (SAN). Chances are you'll spend more time travelling to and from the airport than you will actually flying!
Which airlines fly direct from BOI to San Diego Airport?
Southwest Airlines (WN) is one of the preferred choices for many travellers flying between Boise Airport (BOI) and San Diego Intl. Airport (SAN). Choose from the 30 flights it offers on this route each month. Another airline servicing this route is Alaska Airlines (AS). You'll have 30 flights every month to select from.
Are Boise Airport (BOI) to San Diego Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Boise Airport (BOI) to SAN can be hit-or-miss. You may be able to score a great bargain, but you could also miss out completely! If you'd prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines publish their prices so far in advance. Our top tip? Check back often as prices are updated regularly.

Travel information

Origin airport
Boise
Destination airport
San Diego Intl.
Return price
€228
Distance
1200 km
Average flight time
1 hour 53 mins

Explore a world of travel with Expedia

*Available to Expedia members.