A mountainous landscape with dense forests and rocky cliffs.

Cheap Flights to Castle Rock , WA from CA $201

View CA $201 flight on Sun, Oct 4, 2026Opens in a new window

Popular airlines to Castle Rock

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How much is the cheapest flight to Castle Rock?

Prices were available within the past 7 days and start at CA $201 for one-way flights and CA $331 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
WestJet
United
Delta
Alaska Airlines

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

From CA $308 - CA $517 per traveller.

Frequently asked questions

What is the name of Castle Rock's airport?
The majority of travellers like to fly into Seattle - Tacoma Intl. Airport (SEA) when visiting the happening city of Castle Rock.
What airport is best to fly into Castle Rock?
With one major airport servicing Castle Rock, it won't take very long to discover the best flight. You'll be taking off to Portland Intl. Airport (PDX), which is located around 80 kilometres from the downtown area.
How many airlines fly to Castle Rock?
There are 40 air carriers that service Castle Rock from 127 airports around the world.
Which airlines fly to Castle Rock?
Alaska Airlines, Delta and American Airlines fly the most frequently to Castle Rock. The majority of flights come from Los Angeles, with Alaska Airlines having the most services on this route.
How many nonstop flights are there to Castle Rock?
With approximately 4,658 nonstop flights every week, you'll be hitting the runway in Castle Rock before you can say, "Are we there yet?"
Where are the most popular flights to Castle Rock departing from?
Flights to Castle Rock departing from Los Angeles, Phoenix and San Francisco airports are very popular.
How long is the flight to Castle Rock Airport?
If you're flying to Castle Rock from Los Angeles, you'll have a flight time of 2 hours and 45 minutes. Those setting off from Phoenix can expect to be travelling for 3 hours and 5 minutes. From San Francisco it's roughly 2 hours and 7 minutes away.
How to book the cheapest flight to Castle Rock?
We've all come across those lucky jet-setters who manage to pick up extremely cheap plane tickets wherever they go. Want to know how to do it for your Castle Rock vacation? Don't wait until the last moment to lock in your flight. Don't stop there, however. Do some research and check if there are a couple of airports at your destination. Fares often differ depending on which airport you fly into. Make sure you compare fares across air carriers as well. Lastly, be ready to book quickly if you stumble on a great price. It might not stick around for long! With a bit of know-how and a little good fortune, the ideal fare will be yours.
Do you have any tips for my flight to Castle Rock?
Wherever you're jetting in from, flying can be a pleasurable experience if you've prepared well enough. We've put together a list of top travel tips that will help get your Castle Rock vacation started on the right foot. What to pack in your hand luggage:
  • First of all, put in your passport, official ID, credit cards and vital medications. Next, you'll want some extra in-flight entertainment to while away the hours. A juicy novel and a laptop crammed with your favourite movies are some wonderful options. If you plan to catch a few z's, a quality neck pillow and some earplugs will also be useful. Finally, leave some space for a toothbrush and some facial wipes to ensure you step off the plane looking and feeling fresh.
Do not pack the following items in your hand luggage:
  • Leave all your full-sized bottles of shampoo and hair gel in your checked luggage. Any liquids or gels in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated. Sharp or pointed objects, like your beloved Swiss Army knife, and dangerous products which are explosive or flammable, such as aerosol cans, spray paint and matches, are also restricted.
What to wear on a flight:
  • Go for comfort over style. Prepare for changes in temperature by layering up, and pick flat, easy-to-remove footwear like sneakers.
  • Deep vein thrombosis (DVT) is a risk on long-distance flights. It's the result of blood clots forming due to inactivity and poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression socks.
How to get through airport security fast when flying to Castle Rock?
A little pre-planning before you arrive at the airport will help make your trip to Castle Rock easy and painless. We've rounded up some useful tips for a swift journey through security:
  • First things first. Your passport and boarding pass will need to be shown to airport security. Have them close by so you don't hold up the line.
  • Next up, both you and your carry-on bag must be X-rayed. To make the process quick and painless, remove anything that might trigger the alarms. Items such as your belt, jacket and earphones will be required to go through the machine.
  • For just a few minutes, you'll need to unplug from technology. Your phone, tablet and any other electronic gadgets also need to be sent through the scanner.
  • Don't forget to remove gels and liquids from your hand luggage. They usually need to be sent through the X-ray separately. Each product should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit inside a single quart-size (one litre), clear zip-lock bag.
  • Choosing your footwear wisely can save you several precious minutes. Boots are often required to be removed and separately scanned. Slip-on sneakers usually aren't.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, put them in your checked suitcase. They won't be allowed on board and will be confiscated.

Book with confidence

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Cheap flights to Castle Rock (null)

Get started finding a cheap flight to Castle Rock on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Castle Rock.

Roundtrip prices range from CA $331 - CA $347, and one-ways Castle Rock start as low as CA $201.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Castle Rock (null)

You have several options for which airline you choose to travel with to Castle Rock. There are 10 airlines flying into null: WestJet, Air Canada, Alaska Airlines, United, Delta. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Castle Rock (null) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to null in October and in October for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

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Travel information

Destination airport
Portland Intl.
Destination airport IATA code
PDX
Destination city name
Portland
Roundtrip price
CA $331

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