Alaska Airlines Flights from Chicago to San Diego

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Lowest fares from Chicago to San Diego

Jun 2025
From$312*
Seen: 1 day ago
Flight Type One Way|Saver
$137
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Range$137-$428

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

One-way low-fare flights Chicago to San Diego.*

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One-way low-fare flights Chicago to San Diego.*
From
To
Fare Type
Dates
Price
Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 21, 2025

From

$74

Seen: 12 hours ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 6, 2025

From

$74

Seen: 16 hours ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 18, 2025

From

$74

Seen: 1 day ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 7, 2025

From

$74

Seen: 9 hours ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 16, 2025

From

$111

Seen: 1 day ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Oct 26, 2025

From

$111

Seen: 2 hours ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Nov 9, 2025

From

$111

Seen: 1 day ago

Chicago (ORD)San Diego (SAN)One-way
|
Saver		Depart: Sep 10, 2025

From

$115

Seen: 23 hours ago

*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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