$49 Cheap flight deals from Seattle (SEA) to St. Charles (CHI)
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This Weekend's Flight Deals from Seattle to St. Charles
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 $49 One Way, $115 Round Trip from Seattle to St. Charles
Prices starting at $115 for return flights and $49 for one-way flights to St. Charles were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
St. Charles economy flight packages
Aloft Chicago Downtown River North
Apr 3 - Apr 6
Seattle (SEA) to Chicago (ORD)
Reviewed on Feb 12, 2026
Hotel Riu Plaza Chicago
Apr 3 - Apr 6
Seattle (SEA) to Chicago (ORD)
Reviewed on Jan 14, 2026
Level Chicago – Old Town
Apr 3 - Apr 6
Seattle (SEA) to Chicago (ORD)
Reviewed on Nov 20, 2025
St. Charles packages with premium economy flights
Fairmont Chicago at Millennium Park
Apr 13 - Apr 15
Seattle (SEA) to Chicago (ORD)
Reviewed on Feb 16, 2026
Hilton Chicago O'Hare Airport
Apr 13 - Apr 15
Seattle (SEA) to Chicago (ORD)
Reviewed on Feb 15, 2026
Swissotel - Chicago
Apr 13 - Apr 15
Seattle (SEA) to Chicago (ORD)
Reviewed on Dec 10, 2025
St. Charles first class flight packages
Hotel Riu Plaza Chicago
Mar 27 - Mar 31
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Jan 14, 2026
Fairmont Chicago at Millennium Park
Mar 27 - Mar 31
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Feb 16, 2026
Level Chicago – Old Town
Mar 27 - Mar 31
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Nov 20, 2025
More About Flying To St. Charles from Seattle
Route Information for Flights from Seattle to St. Charles
Origin Airport IATA Code | SEA |
|---|---|
Destination Airport IATA Code | CHI |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Seattle to St. Charles
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Flights from Seattle
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St. Charles 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.