Cheap Flights from Boise to San Diego

View €77 flight on Wed, 8 Oct 2025Opens in a new window

Popular airlines from Boise to San Diego

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

Prices were available within the past 7 days and start at €77 for one-way flights and €198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 8 Aug - Mon, 11 Aug
BOI
Boise
SAN
San Diego
€198 Return, found 2 days ago
€198
Return
found 2 days ago
Select Delta flight, departing Fri, 8 Aug from Boise to San Diego, returning Mon, 11 Aug, priced at €198 found 2 days ago
United
Sat, 22 Nov - Thu, 27 Nov
BOI
Boise
SAN
San Diego
€206 Return, found 1 hour ago
€206
Return
found 1 hour ago
Select United flight, departing Sat, 22 Nov from Boise to San Diego, returning Thu, 27 Nov, priced at €206 found 1 hour ago
Delta
Sat, 22 Nov - Thu, 27 Nov
BOI
Boise
SAN
San Diego
€212 Return, found 1 hour ago
€212
Return
found 1 hour ago
Select Delta flight, departing Sat, 22 Nov from Boise to San Diego, returning Thu, 27 Nov, priced at €212 found 1 hour ago
Delta
Fri, 8 Aug - Mon, 11 Aug
BOI
Boise
SAN
San Diego
€219 Return, found 2 days ago
€219
Return
found 2 days ago
Select Delta flight, departing Fri, 8 Aug from Boise to San Diego, returning Mon, 11 Aug, priced at €219 found 2 days ago
American Airlines
Fri, 8 Aug - Mon, 11 Aug
BOI
Boise
CLD
Carlsbad
€223 Return, found 2 days ago
€223
Return
found 2 days ago
Select American Airlines flight, departing Fri, 8 Aug from Boise to Carlsbad, returning Mon, 11 Aug, priced at €223 found 2 days ago
Delta
Sat, 22 Nov - Wed, 26 Nov
BOI
Boise
SAN
San Diego
€224 Return, found 1 hour ago
€224
Return
found 1 hour ago
Select Delta flight, departing Sat, 22 Nov from Boise to San Diego, returning Wed, 26 Nov, priced at €224 found 1 hour ago

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

September is typically the cheapest month to fly

From €73 - €179 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.