$120 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 $120 One Way, $237 Round Trip from Seattle to St. Charles
Prices starting at $237 for return flights and $120 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
Hotel Riu Plaza Chicago
Aug 27 - Aug 29
Seattle (SEA) to Chicago (ORD)
Reviewed on Jul 9, 2026
Sable at Navy Pier Chicago, Curio Collection by Hilton
Aug 21 - Aug 24
Seattle (SEA) to Chicago (ORD)
Reviewed on Jul 9, 2026
St. Charles first class flight packages
Omni Chicago Hotel
Aug 13 - Aug 17
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Jul 9, 2026
Sable at Navy Pier Chicago, Curio Collection by Hilton
Aug 13 - Aug 17
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Jul 9, 2026
Trump International Hotel & Tower Chicago
Aug 13 - Aug 17
Seattle (SEA) to Chicago (ORD)
Chicago (ORD) to Seattle (SEA)
Reviewed on Jul 9, 2026
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
Looking for cheap Seattle to St. Charles flights? Orbitz has the cheapest air fares for flights from Seattle to St. Charles. Plus, with our cutting-edge mobile tools, travel planning has never been easier or more wallet-friendly.
Mobile Deals and Steals
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Book Hotels With Confidence
When you’re looking for hotel rooms to go with your bargain flights from Seattle to St. Charles, Orbitz provides you descriptions, photos, reviews, and location maps so you know exactly what you are booking. With easy-to-use Orbitz map tools, you can search for nearby hotels on your mobile device.
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Use the Orbitz app or the mobile Orbitz site, m.orbtiz.com, to see information about your Seattle to St. Charles flights anytime you need it. Your itinerary is also sent to your email address for reference. Access updates on your flights from Seattle to St. Charles on your mobile device too, including delays and baggage claim details.
Cheap Air Ticket Prices Guaranteed
Orbitz is your number one source for low fares for Seattle to St. Charles flights. Our low price guarantee on domestic and international air tickets give you great savings for a perfect trip to St. Charles. Need hotels too? You can book them last minute on your mobile phone.
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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.