CA $273 Cheap Alaska Airlines fights from Ontario (ONT) to San Diego (SAN)

View CA $273 flight on Sat, Oct. 18, 2025Opens in a new window

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Alaska Airlines flights from Ontario to San Diego (ONT→SAN)

Prices were available within the past 7 days and start at CA $273 for one-way flights and CA $511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $511 Roundtrip, found 18 hours ago
CA $511
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $511 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $518 Roundtrip, found 18 hours ago
CA $518
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $518 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $573 Roundtrip, found 18 hours ago
CA $573
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $573 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $582 Roundtrip, found 18 hours ago
CA $582
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $582 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $588 Roundtrip, found 18 hours ago
CA $588
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $588 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $600 Roundtrip, found 18 hours ago
CA $600
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $600 found 18 hours ago
Alaska Airlines
Sat, Oct. 18 - Mon, Oct. 20
ONT
Ontario
SAN
San Diego
CA $608 Roundtrip, found 18 hours ago
CA $608
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 18 from Ontario to San Diego, returning Mon, Oct. 20, priced at CA $608 found 18 hours ago
Flight from Ontario to San Diego (ONT - SAN) route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta
Popular airline
American Airlines
Distance
151 km
*Available to Expedia members.