Cheap flights from Boston to Encinitas from CA $96

View CA $96 flight on Sat, Sep. 6, 2025Opens in a new window

Popular airlines from Boston to Encinitas

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Cheap flights from Boston (BOS) to Encinitas (SAN)

Prices were available within the past 7 days and start at CA $96 for one-way flights and CA $293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Aug. 20 - Tue, Aug. 26
BOS
Boston
SAN
San Diego
CA $293 Roundtrip, found 3 days ago
CA $293
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Wed, Aug. 20 from Boston to San Diego, returning Tue, Aug. 26, priced at CA $293 found 3 days ago
Spirit Airlines
Wed, Aug. 20 - Tue, Aug. 26
BOS
Boston
SAN
San Diego
CA $304 Roundtrip, found 3 days ago
CA $304
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Wed, Aug. 20 from Boston to San Diego, returning Tue, Aug. 26, priced at CA $304 found 3 days ago
Alaska Airlines
Wed, Sep. 3 - Tue, Sep. 16
BOS
Boston
SAN
San Diego
CA $320 Roundtrip, found 17 hours ago
CA $320
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Wed, Sep. 3 from Boston to San Diego, returning Tue, Sep. 16, priced at CA $320 found 17 hours ago
Delta
Tue, Aug. 19 - Tue, Aug. 26
BOS
Boston
SAN
San Diego
CA $324 Roundtrip, found 10 hours ago
CA $324
Roundtrip
found 10 hours ago
Select Delta flight, departing Tue, Aug. 19 from Boston to San Diego, returning Tue, Aug. 26, priced at CA $324 found 10 hours ago
Hawaiian Airlines
Sat, Sep. 6 - Tue, Sep. 23
BOS
Boston
SAN
San Diego
CA $324 Roundtrip, found 17 hours ago
CA $324
Roundtrip
found 17 hours ago
Select Hawaiian Airlines flight, departing Sat, Sep. 6 from Boston to San Diego, returning Tue, Sep. 23, priced at CA $324 found 17 hours ago
JetBlue Airways
Wed, Aug. 13 - Tue, Aug. 26
BOS
Boston
SAN
San Diego
CA $325 Roundtrip, found 2 days ago
CA $325
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Wed, Aug. 13 from Boston to San Diego, returning Tue, Aug. 26, priced at CA $325 found 2 days ago

Find the cheapest month to fly from Boston (BOS) to San Diego (SAN)

September is typically the cheapest month to fly

From CA $189 - CA $362 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.