$40 Cheap flight deals from Seattle (SEA) to Castle Rock (DEN)
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This Weekend's Flight Deals from Seattle to Castle Rock
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 $40 One Way, $80 Round Trip from Seattle to Castle Rock
Prices starting at $80 for return flights and $40 for one-way flights to Castle Rock were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Castle Rock economy flight packages
Holiday Inn Express Denver Downtown by IHG
Apr 30 - May 2
Seattle (SEA) to Denver (DEN)
Reviewed on Dec 22, 2025
Hilton Denver City Center
May 23 - May 25
Seattle (SEA) to Denver (DEN)
Denver (DEN) to Seattle (SEA)
Reviewed on Jan 9, 2026
Table Mountain Inn
May 23 - May 25
Seattle (SEA) to Denver (DEN)
Denver (DEN) to Seattle (SEA)
Reviewed on Aug 8, 2025
More About Flying To Castle Rock from Seattle
Route Information for Flights from Seattle to Castle Rock
Origin Airport IATA Code | SEA |
|---|---|
Destination Airport IATA Code | DEN |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Seattle to Castle Rock
Whether you want to book cheap flights from Seattle to Castle Rock or are looking for the perfect package holiday, Orbitz is your one-stop source. Taking the stress and expense out of travel, Orbitz helps you find the best fares for Seattle to Castle Rock flights.
Make the Most of Your Vacation
Not only does Orbitz have cheap deals for Seattle to Castle Rock flights, we can also help you plan your vacation in advance. Why wait in lengthy lines for tickets to shows, amusement parks, and other attractions when you could be making the most of your holiday? Add activities to your flight booking for fewer hassles once you arrive in Castle Rock.
Planning on the Go
Book your flights from Seattle to Castle Rock wherever you are with the Orbitz app for Android and iPhone. Or simply use m.orbitz.com on your mobile browser to search and book the Seattle to Castle Rock flights that you want. And if you’re running late, you check your flight status and baggage claim information on your mobile device too too.
Craft Your Perfect Vacation
Orbitz takes the stress out of vacation planning with great deals on flights from Seattle to Castle Rock, hotels, car rentals, cruises, and more. Mix and match results for your perfect trip, or book a complete vacation package.
Keep Informed With Orbitz
With Orbitz’s free alerts service, you will stay informed of flight or services disruptions to your Seattle to Castle Rock flights. The alerts can be sent straight to your mobile phone or email.
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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.