$52 Cheap flight deals from Chicago (CHI) to SeaTac (SEA)
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This Weekend's Flight Deals from Chicago to SeaTac
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $52 One Way, $103 Round Trip from Chicago to SeaTac
Prices starting at $103 for return flights and $52 for one-way flights to SeaTac were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
SeaTac economy flight packages
Sleep Inn - SeaTac Airport
Jan 21 - Jan 27
Chicago (CHI) to Seattle (SEA)
Reviewed on Oct 11, 2025
Comfort Inn & Suites Sea-Tac Airport
Jan 21 - Jan 27
Chicago (CHI) to Seattle (SEA)
Reviewed on Nov 9, 2025
Kimpton Hotel Vintage Seattle by IHG
Jan 21 - Jan 27
Chicago (CHI) to Seattle (SEA)
Reviewed on Oct 1, 2024
More About Flying To SeaTac from Chicago
Route Information for Flights from Chicago to SeaTac
Origin Airport IATA Code | CHI |
|---|---|
Destination Airport IATA Code | SEA |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Chicago to SeaTac
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You can always find affordable flights from Chicago to SeaTac on Orbitz. Use different airlines to book arrival and departure flights, take advantage of vacation package deals, and secure exclusive rewards.
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SeaTac Airports
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.