Lowest Priced Flights to Chicago on Alaska Airlines starting at $139*

Most popular flights to Chicago on Alaska Airlines.*

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Seattle (SEA)to

Chicago (ORD)
Sep 14, 2026 - Sep 21, 2026
From
$317
Seen: 14 hours ago
Round-trip
Saver

Seattle (SEA)to

Chicago (ORD)
Sep 14, 2026 - Sep 28, 2026
From
$317
Seen: 14 hours ago
Round-trip
Saver

Seattle (SEA)to

Chicago (ORD)
Sep 15, 2026 - Sep 16, 2026
From
$317
Seen: 14 hours ago
Round-trip
Saver

Seattle (SEA)to

Chicago (ORD)
Sep 16, 2026 - Sep 23, 2026
From
$317
Seen: 14 hours ago
Round-trip
Saver

Seattle (SEA)to

Chicago (ORD)
Sep 16, 2026 - Sep 30, 2026
From
$317
Seen: 14 hours ago
Round-trip
Saver

Portland (PDX)to

Chicago (ORD)
Sep 12, 2026 - Sep 15, 2026
From
$357
Seen: 14 hours ago
Round-trip
Saver

Portland (PDX)to

Chicago (ORD)
Sep 12, 2026 - Sep 26, 2026
From
$357
Seen: 14 hours ago
Round-trip
Saver

Portland (PDX)to

Chicago (ORD)
Sep 12, 2026 - Sep 19, 2026
From
$357
Seen: 14 hours ago
Round-trip
Saver

Portland (PDX)to

Chicago (ORD)
Sep 8, 2026 - Sep 22, 2026
From
$367
Seen: 14 hours ago
Round-trip
Saver

Portland (PDX)to

Chicago (ORD)
Sep 9, 2026 - Sep 10, 2026
From
$367
Seen: 14 hours ago
Round-trip
Saver

San Diego (SAN)to

Chicago (ORD)
Sep 9, 2026 - Sep 12, 2026
From
$277
Seen: 3 hours ago
Round-trip
Saver

San Diego (SAN)to

Chicago (ORD)
Sep 14, 2026 - Sep 16, 2026
From
$277
Seen: 4 hours ago
Round-trip
Saver

San Diego (SAN)to

Chicago (ORD)
Sep 12, 2026 - Sep 17, 2026
From
$277
Seen: 4 hours ago
Round-trip
Saver

San Diego (SAN)to

Chicago (ORD)
Sep 16, 2026 - Sep 18, 2026
From
$289
Seen: 24 minutes ago
Round-trip
Saver

San Diego (SAN)to

Chicago (ORD)
Sep 15, 2026 - Sep 18, 2026
From
$289
Seen: 18 minutes ago
Round-trip
Saver

Anchorage (ANC)to

Chicago (ORD)
Sep 3, 2026 - Sep 17, 2026
From
$471
Seen: 14 hours ago
Round-trip
Saver

Anchorage (ANC)to

Chicago (ORD)
Sep 1, 2026 - Sep 15, 2026
From
$471
Seen: 14 hours ago
Round-trip
Saver

Anchorage (ANC)to

Chicago (ORD)
Sep 2, 2026 - Sep 16, 2026
From
$471
Seen: 14 hours ago
Round-trip
Saver

Anchorage (ANC)to

Chicago (ORD)
Aug 31, 2026 - Sep 7, 2026
From
$479
Seen: 14 hours ago
Round-trip
Saver

Anchorage (ANC)to

Chicago (ORD)
Aug 24, 2026 - Sep 7, 2026
From
$479
Seen: 14 hours ago
Round-trip
Saver
*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.

Top offers for Chicago one-way flights.*

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Top offers for Chicago one-way flights.*
From
To
Fare Type
Dates
Price
Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Sep 21, 2026

From

$139

Seen: 14 hours ago

Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Sep 28, 2026

From

$139

Seen: 14 hours ago

Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Oct 5, 2026

From

$139

Seen: 14 hours ago

Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Oct 15, 2026

From

$139

Seen: 14 hours ago

Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Oct 20, 2026

From

$139

Seen: 14 hours ago

Oakland (OAK)Chicago (ORD)One-way
|
Saver
Depart: Oct 27, 2026

From

$139

Seen: 14 hours ago

San Diego (SAN)Chicago (ORD)One-way
|
Saver
Depart: Sep 23, 2026

From

$139

Seen: 10 hours ago

San Diego (SAN)Chicago (ORD)One-way
|
Saver
Depart: Dec 10, 2026

From

$139

Seen: 4 hours ago

San Diego (SAN)Chicago (ORD)One-way
|
Saver
Depart: Nov 9, 2026

From

$139

Seen: 46 minutes ago

San Diego (SAN)Chicago (ORD)One-way
|
Saver
Depart: Oct 21, 2026

From

$139

Seen: 5 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.

Plan a trip to Chicago

Along the shores of Lake Michigan sits Chicago, a city famous for deep dish pizzas, Oprah, and a huge round metal sculpture called "The Bean" that reflects the Chicago skyline. Chicago was incorporated in 1837 and grew to become the third largest US city. In 1871, the Great Fire destroyed a large section of town; in gutsy Chicago fashion, the city responded by building the first skyscraper in 1884. Glide along the Chicago River on an architecture boat cruise and discover which city buildings are topped with gold. Watch an aardvark nose around for food or see a white cheeked gibbon swing through the trees at the admission-free Lincoln Park Zoo. Come face to face with larger-than-life images of Chicago residents at the interactive Crown Fountain in Millennium Park.

View airport information for Chicago (ORD)