
$35 Cheap flight deals from Portland (PDX) to Castle Rock (DEN)
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
This Weekend's Flight Deals from Portland 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 $35 One Way, $68 Round Trip from Portland to Castle Rock
Prices starting at $68 for return flights and $35 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
Dec 26 - Jan 1
Portland (PDX) to Denver (DEN)
Reviewed on Nov 8, 2025

Hyatt Regency Denver at Colorado Convention Center
Dec 26 - Jan 1
Portland (PDX) to Denver (DEN)
Reviewed on Jul 25, 2025

The Brown Palace Hotel and Spa, Autograph Collection
Dec 26 - Jan 1
Portland (PDX) to Denver (DEN)
Reviewed on Nov 11, 2025
More About Flying To Castle Rock from Portland
Route Information for Flights from Portland to Castle Rock
Origin Airport IATA Code | PDX |
|---|---|
Destination Airport IATA Code | DEN |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Portland to Castle Rock
Trip-Planning Made Easy
Your search engine may give you thousands of pages of results when you search for cheap flights from Portland to Castle Rock, but you can save yourself a lot of hassle and money by going straight to Orbitz.com. Not only do we offer great deals on Portland to Castle Rock flights, but we make it easy to book hotels, car rentals, cruises, or a complete vacation package of your dreams.
Discount Portland to Castle Rock Flights
Orbitz’s low price guarantee means you get the best fares around. Find the lowest prices for international and domestic tickets and for flights from Portland to Castle Rock when you use Orbitz. It’s easy to add activities to your booking, so you can take advantage of all that Castle Rock has to offer.
Easily Book, Change, Cancel Flights From Portland to Castle Rock
Orbitz now offers free mobile device apps, so even the busiest multi-taskers can plan their vacations while away from their desktop computer. Plus, instant alerts to your email or mobile phone help you stay on top of any delays or travel updates, so you avoid unpleasant surprises before boarding your Portland to Castle Rock flights. Our Customer Service representatives are ready to assist you if you need to change your air travel plans.
Take Advantage of Frequent Flyer Options Through Orbitz
With Orbitz, you do not have to choose between a low fare and earning frequent flyer miles. Simply provide your frequent flyer information when you book your Portland to Castle Rock flights.
Flights from Portland
- Portland to Los Angeles
- Portland to Phoenix
- Portland to Dallas
- Portland to New York
- Portland to Chicago
- Portland to Houston
- Portland to Paris
- Portland to San Francisco
- Portland to Orlando
- Portland to Seattle
- Portland to London
- Portland to New Orleans
- Portland to Washington
- Portland to Bangkok
- Portland to Detroit
- Portland to Kansas City
- Portland to Toronto
- Portland to Edmonton
- Portland to Beijing
- Portland to Montreal
Portland Airports
More Destinations
- Flights from Chicago to Southwest
- Flights from Dallas to Southwest
- Flights from Detroit to Southwest
- Flights from Houston to Southwest
- Flights from Miami to Southwest
- Flights from Minneapolis - St. Paul to Southwest
- Flights from New York to Southwest
- Flights from Orlando to Southwest
- Flights from Phoenix to Southwest
- Flights from Salt Lake City to Southwest
- Flights from Washington to Southwest
- Flights from Atlanta to Englewood
- Flights from Boston to Englewood
- Flights from Houston to Englewood
- Flights from London to Englewood
- Flights from Minneapolis - St. Paul to Englewood
- Flights from Seattle to Englewood
- Flights from Washington to Englewood
- Flights from Durango to Englewood
- Flights from Sacramento to Englewood
- Flights from Fort Lauderdale to Englewood
- Flights from Burlington to Englewood
- Flights from Grand Rapids to Englewood
- Flights from Shenzhen to Englewood
- Flights from Chicago to Denver
- Flights from Dallas to Denver
- Flights from Kansas City to Denver
- Flights from Dallas to Larkspur
- Flights from Detroit to Larkspur
- Flights from Los Angeles to Larkspur
- Flights from Mexico City to Larkspur
- Flights from New York to Larkspur
- Flights from Phoenix to Larkspur
- Flights from Washington to Larkspur
- Flights from Accra to Larkspur
- Flights from Newark to Larkspur
- Flights from Huntsville to Larkspur
- Flights from Rock Springs to Larkspur
- Flights from Fargo to Larkspur
- Flights from Grand Junction to Parker
- Flights from Boston to Parker
- Flights from Dallas to Parker
- Flights from Kansas City to Parker
- Flights from Las Vegas to Parker
- Flights from Los Angeles to Parker
- Flights from Miami to Parker
- Flights from New York to Parker
- Flights from Orlando to Parker
- Flights from Seattle to Parker
- Flights from Washington to Parker
- Flights from Sacramento to Parker
- Flights from Omaha to Parker
- Flights from Tampa to Parker
- Flights from Albany to Parker
- Flights from Greenville - Spartanburg to Parker
- Flights from Atlanta to Littleton
- Flights from Boston to Littleton
- Flights from Charlotte to Littleton
- Flights from Chicago to Littleton
- Flights from Cleveland to Littleton
- Flights from Columbus to Littleton
- Flights from Dallas to Littleton
- Flights from Detroit to Littleton
- Flights from Houston to Littleton
- Flights from Los Angeles to Littleton
- Flights from Miami to Littleton
- Flights from Minneapolis - St. Paul to Littleton
- Flights from New York to Littleton
- Flights from Phoenix to Littleton
- Flights from Salt Lake City to Littleton
- Flights from San Francisco to Littleton
- Flights from Seattle to Littleton
- Flights from Washington to Littleton
- Flights from Durango to Littleton
- Flights from Sacramento to Littleton
- Flights from Fort Lauderdale to Littleton
- Flights from Newark to Littleton
- Flights from Tulsa to Littleton
- Flights from Madison to Littleton
- Flights from Norfolk - Virginia Beach to Littleton
- Flights from Allentown to Littleton
- Flights from Knoxville to Littleton
- Flights from Greenville - Spartanburg to Littleton
- Flights from Boston to Lone Tree
- Flights from Charlotte to Lone Tree
- Flights from Detroit to Lone Tree
- Flights from Los Angeles to Lone Tree
- Flights from Mexico City to Lone Tree
- Flights from Minneapolis - St. Paul to Lone Tree
- Flights from New York to Lone Tree
- Flights from Phoenix to Lone Tree
- Flights from Seattle to Lone Tree
- Flights from Des Moines to Lone Tree
- Flights from Fort Lauderdale to Lone Tree
- Flights from Burlington to Lone Tree
- Flights from Baltimore to Southeast Denver
- Flights from Charlotte to Southeast Denver
- Flights from New York to Southeast Denver
- Flights from Phoenix to Southeast Denver
- Flights from Seattle to Southeast Denver
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.


