Cheap Delta Flights from Boise to San Diego (BOI→SAN)

Landing cheap one-way Delta Air Lines flights from BOI to SAN from AU$128 on Expedia is a breeze — just filter by "Price (lowest to highest)." Or check out our affordable return fares AU$256 for your next break.*

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to San Diego are usually cheaper in the off-peak months of January and November. Whether you need a round-trip or one-way ticket, you could land a better deal then.

Click on our "Nonstop" filter when browsing for direct Delta Air Lines flights from BOI to SAN. It's also a great way to compare other airlines servicing the same nonstop route.

Take a Delta Air Lines flight from Boise Airport (BOI) to San Diego, and you're most likely to come in to San Diego Intl. Airport (SAN). This is the airline's primary hub here.

It's usually possible to cancel or reschedule your flight, although there may be additional charges if your booking was made more than 24 hours ago. Want to keep your options open? Use Expedia's "No cancel fee" and "Changes included" filters to find flights that won't charge you extra if you have to revise your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for more information.