Cheap flights from Sun Valley to Carlsbad

View AU$158 flight on Sat, 9 Aug. 2025Opens in a new window

Popular airlines from Sun Valley to Carlsbad

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Cheap Flights from Sun Valley (BOI) to Carlsbad (SAN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$339 Return, found 2 days ago
AU$339
Return
found 2 days ago
Select Delta flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$339 found 2 days ago
Alaska Airlines
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$346 Return, found 2 days ago
AU$346
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$346 found 2 days ago
Delta
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$359 Return, found 2 days ago
AU$359
Return
found 2 days ago
Select Delta flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$359 found 2 days ago
Delta
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$361 Return, found 2 days ago
AU$361
Return
found 2 days ago
Select Delta flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$361 found 2 days ago
American Airlines
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$515 Return, found 2 days ago
AU$515
Return
found 2 days ago
Select American Airlines flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$515 found 2 days ago
United
Mon, 4 Aug. - Mon, 11 Aug.
BOI
Boise
SAN
San Diego
AU$529 Return, found 2 days ago
AU$529
Return
found 2 days ago
Select United flight, departing Mon, 4 Aug. from Boise to San Diego, returning Mon, 11 Aug., priced at AU$529 found 2 days ago

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

September is typically the cheapest month to fly

From AU$129 - AU$276 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.