Alaska Airlines Flights from Seattle to Chicago
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1 Passenger
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Lowest fares from Seattle to Chicago
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One-way low-fare flights Seattle to Chicago.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Dec 24, 2025 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Dec 25, 2025 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Feb 20, 2026 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Jan 20, 2026 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Feb 18, 2026 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Feb 19, 2026 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Feb 21, 2026 | From $90 Seen: 3 hours ago | |
| Seattle (SEA) | Chicago (ORD) | One-way | Saver | Depart: Nov 24, 2025 | From $90 Seen: 3 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.