C$ 154 Find Cheap Flights to Castle Rock

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Castle Rock departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 257
Overall average: C$ 774
Multiple Airlines
Wed 28/1Sun 1/2
YVR - DEN • 1 stop
Cheapest direct flights
C$ 269
Typical prices: C$ 470-C$ 791
United Airlines
Sat 13/12Wed 7/1
YYC - DEN • Direct
Top routes
YYC-DEN
Cheapest
YVR-DEN
Most popular
Insights
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Flight Deals
Useful Info
Flight Deals

Cheap Flights to Castle Rock

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Castle Rock that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Castle Rock

Wed, 28 Jan - Sun, 1 Feb
Multiple Airlines Logo
9:10 a.m. - 7:10 p.m.YVR-DEN
9h 00m1 stop
Multiple Airlines Logo
6:00 a.m. - 4:27 p.m.DEN-YVR
11h 27m1 stop
C$ 257Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
12:30 p.m. - 8:55 a.m.YVR-DEN
19h 25m2 stops
Multiple Airlines Logo
9:15 p.m. - 12:40 p.m.DEN-YVR
16h 25m1 stop
C$ 262Multiple Airlines
Find Deal
Sat, 13 Dec - Wed, 7 Jan
United Airlines Logo
6:15 a.m. - 8:53 a.m.YYC-DEN
2h 38mdirect
United Airlines Logo
7:15 p.m. - 9:53 p.m.DEN-YYC
2h 38mdirect
C$ 269United Airlines
Find Deal
Tue, 20 Jan - Tue, 3 Feb
United Airlines Logo
6:15 a.m. - 8:55 a.m.YYC-DEN
2h 40mdirect
United Airlines Logo
7:15 p.m. - 9:53 p.m.DEN-YYC
2h 38mdirect
C$ 281United Airlines
Find Deal
Sat, 13 Dec - Wed, 7 Jan
Air Canada Logo
6:00 a.m. - 12:37 p.m.YYC-DEN
6h 37m1 stop
Air Canada Logo
8:05 a.m. - 7:35 p.m.DEN-YYC
11h 30m2 stops
C$ 292Air Canada
Find Deal
Tue, 20 Jan - Tue, 3 Feb
Air Canada Logo
6:00 a.m. - 12:37 p.m.YYC-DEN
6h 37m1 stop
Air Canada Logo
8:05 a.m. - 3:39 p.m.DEN-YYC
7h 34m1 stop
C$ 295Air Canada
Find Deal
Sun, 1 Feb - Sun, 8 Feb
Alaska Airlines Logo
4:45 p.m. - 12:38 p.m.YYZ-DEN
21h 53m1 stop
Alaska Airlines Logo
7:00 a.m. - 3:35 p.m.DEN-YYZ
30h 35m1 stop
C$ 519Alaska Airlines
Find Deal
Sun, 1 Feb - Sun, 8 Feb
Alaska Airlines Logo
4:45 p.m. - 12:38 p.m.YYZ-DEN
21h 53m1 stop
Alaska Airlines Logo
7:00 a.m. - 3:35 p.m.DEN-YYZ
30h 35m1 stop
C$ 521Alaska Airlines
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Thu, 27 Nov - Sun, 30 Nov
WestJet Logo
6:20 a.m. - 10:28 p.m.YKF-DEN
18h 08m2 stops
WestJet Logo
6:25 a.m. - 5:28 a.m.DEN-YKF
21h 03m2 stops
C$ 945WestJet
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Thu, 27 Nov - Sun, 30 Nov
WestJet Logo
6:20 a.m. - 10:28 p.m.YKF-DEN
18h 08m2 stops
WestJet Logo
6:25 a.m. - 5:28 a.m.DEN-YKF
21h 03m2 stops
C$ 947WestJet
Find Deal
Useful Info

Good to know – Book Cheap Castle Rock Plane Tickets

Low seasonJanuary
Cheapest flightC$ 152
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Calgary to Denver

Flights to Castle Rock: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to Castle Rock 
JesseFlew with Air CanadaYVR-DENMay 2025
keep more time incase connecting flight, usually flights late
Verified travelerFlew with Air CanadaYVR-DENFeb 2025
Take as little carryon as possible. Expect small seats and overhead bins are not nearly as big as longhair flights. Restrooms are tiny as well.
Verified travelerFlew with United AirlinesYYC-DENAug 2024
Denver International is a really nice airport, but it should be for a hub! A lot of stuff is actually open until 10:30 or 11pm, so that’s nice. Pretty good place to do an overnight layover too…just make sure to get some snacks in case you can’t sleep.
F.Flew with United AirlinesYYZ-DENAug 2024
Make sure to check the airline delay flights rate and if you have important commitments choose another airline.
JoshuaFlew with Air CanadaYYZ-DENApr 2024
Toronto's customs was one of the faster experiences I've had. They opened four more lanes to expedite the process when the lane got too long, to ensure we would all get through within around 15 minutes. The public transportation within the city is also top notch, in my opinion.
VictoriaFlew with United AirlinesYYC-DENMar 2024
A tip I have is if you’re in a 4/5 boarding class you might want to check your bag ! There’s not enough room for everyone’s carryon above if it’s a full flight.
KimFlew with United AirlinesYEG-DENJan 2024
Completing your passport paperwork on line makes a smoother transition at the airport

FAQs - booking Castle Rock flights

  • How long is the flight to Castle Rock?

    Flights from Regina2h 33m
    Flights from Toronto3h 31m
    Flights from Calgary2h 38m
  • What is the cheapest flight to Denver?

    In the last 3 days, the cheapest flight deal to Denver was found on the route from Calgary, at C$ 257 return. The most popular connection is from Vancouver to Denver and KAYAK users have found round-trip deals for as low as C$ 257 in the last 3 days.

  • How to fly to Castle Rock?

    You cannot fly directly to Castle Rock. KAYAK recommends you fly to Denver Intl (DEN) (56.3 km from Castle Rock). From there you can rent a car or get a taxi.

  • What airports are near Castle Rock?

    The closest airport is Denver Intl (DEN) (56.3 km). KAYAK recommends you fly to Denver Intl.

  • How far is Denver Intl Airport from central Denver?

    There are 30 km between Denver downtown and Denver Intl Airport.

  • What is the name of Denver’s airport?

    When flying to Denver, you'll arrive at Denver Intl Airport (DEN). The airport is also known as Denver or Denver Intl.

  • How does KAYAK find such low prices on flights to Castle Rock?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Castle Rock.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Castle Rock?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Castle Rock is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Castle Rock?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Castle Rock with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Castle Rock?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Castle Rock up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Castle Rock

  • There is no major airport in Castle Rock. It is instead served by Denver Intl Airport.
  • Looking for cheap airfare to Castle Rock? 25% of our users found round-trip tickets to Castle Rock for the following prices or less: From Winnipeg C$ 482, from Calgary C$ 1,112, from Vancouver Intl C$ 1,288
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Castle Rock flight deals.

Reviews of the top 5 airlines flying to Castle Rock

 
Need help choosing which airline to fly with from Canada to Castle Rock? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11248 reviews
7.0Entertainment
8.1Boarding
7.1Food
7.8Comfort
8.5Crew
Airline reviews

Boarding was good. Alaska Airlines is good. On time good. clean. The little bag of peanuts was horrible.

8.0 ExcellentAnonymous, Nov 2025PHX - PAE
Read more Alaska Airlines reviews

Boarding was good. Alaska Airlines is good. On time good. clean. The little bag of peanuts was horrible.

Have mounted entertainment for long flights instead of making customers use their own equipment

I've never flied them before but liked them. Weather was bad so a little scarey but they did a great job landing.

It was all good, no delays which was a worry. All great

4 hour delays. Poor communication. Loading plane after 3 hour delay and then sitting on the tarmac in a closed airport for another hour. Poor communication was biggest issue.

If they actually let me fly. I was rerouted to United and there was no Alaska airlines reps at all. Then the lady who worked the delta counter told me to go away and figure things out myself. Horrible experience.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

I wish my checked suitcase could have been checked since I arrived an hour before take off .

The staff was so kind and friendly! Boarding was efficient and communication was timely. I would seek out flying with Alaska Airlines in the future.

I recently traveled with my service animal, and before boarding, a gate agent kindly arranged for me to have an empty seat next to me to give my dog more space. However, once on board, a male crew member spoke to me in a rude and loud tone, insisting my dog stay on the floor or my lap—even after I explained what the gate agent had approved. His tone and behavior were unprofessional and made me feel uncomfortable in front of other passengers. I understand and respect airline policies, but I would appreciate if this could be reviewed to ensure better awareness and sensitivity toward passengers traveling with service animals. Thank you for your understanding.

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Terrible. They wouldn't allow me on my flight on the 14th..

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

I was seated near a "stinky" person. That's not the fault of Westjet🙁😶‍🌫️

Do not fly on WestJet if you have a connection. It failed to integrate with my connecting Delta flight and I almost missed it.

There was a man who was very rude at boarding. On the other hand personal bag measuring box is too small compared to USA airlines,

A little better seat cushions would be appreciated. Crews were all good.

The process and flight were both smooth and trouble free

Flight delayed 3 hours, missed my connection in Atlanta. Instead of getting to Savannah at 6PM arrived after 10:00PM Middle seat, couldn't get isle or window, couldn't book my seats in advance, had to book at the gate. That's a 1st for me and I used to travel a lot

my carry-on bag was delayed and I did not receive it until the day of my return at the airport. This delay caused me significant inconvenience, as I did not have access to my personal belongings for the duration of my trip. I had expected to rely on my carry-on items, and being without them negatively impacted my travel experience.

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

Worst check in and bag drop off experience. Staff were incredibly rude given that it’s the WestJet system that is faulty.

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

Good but need to be better with the flight times.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

The staff was great and made the long trip easy peasy!

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

The airplane is way too tight, you can hardly enter into your row to sit.. more like kids seats than adults.

taking our carryon and forcing us to check it through

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Everything you need to know for your flight to Castle Rock

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