C$ 124 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 12/10. 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

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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

sáb., 11 oct. - dom., 12 oct.
United Airlines Logo
6:15 a.m. - 8:42 a.m.YYC-DEN
2h 27mdirect
United Airlines Logo
7:21 p.m. - 9:48 p.m.DEN-YYC
2h 27mdirect
C$ 199United Airlines
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mié., 1 oct. - vie., 3 oct.
Air Canada Logo
7:00 a.m. - 12:38 p.m.YYC-DEN
5h 38m1 stop
Air Canada Logo
6:05 p.m. - 12:42 a.m.DEN-YYC
6h 37m1 stop
C$ 203Air Canada
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mar., 21 oct. - mié., 22 oct.
Air Canada Logo
6:10 a.m. - 12:38 p.m.YYC-DEN
6h 28m1 stop
Air Canada Logo
8:40 a.m. - 3:22 p.m.DEN-YYC
6h 42m1 stop
C$ 216Air Canada
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jue., 18 dic. - lun., 29 dic.
United Airlines Logo
6:10 a.m. - 8:53 a.m.YYC-DEN
2h 43mdirect
United Airlines Logo
7:15 p.m. - 9:53 p.m.DEN-YYC
2h 38mdirect
C$ 245United Airlines
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sáb., 27 sep. - lun., 29 sep.
WestJet Logo
9:45 p.m. - 11:24 a.m.YEG-DEN
13h 39m2 stops
WestJet Logo
12:15 p.m. - 9:12 p.m.DEN-YEG
8h 57m1 stop
C$ 289WestJet
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mié., 22 oct. - vie., 31 oct.
Delta Logo
7:45 a.m. - 2:46 p.m.YYC-DEN
7h 01m1 stop
Delta Logo
6:23 p.m. - 11:02 p.m.DEN-YYC
4h 39m1 stop
C$ 297Delta
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mar., 4 nov. - jue., 13 nov.
Delta Logo
7:45 a.m. - 2:46 p.m.YYC-DEN
7h 01m1 stop
Delta Logo
11:40 a.m. - 8:53 p.m.DEN-YYC
9h 13m1 stop
C$ 308Delta
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sáb., 27 sep. - lun., 29 sep.
WestJet Logo
9:45 p.m. - 11:24 a.m.YEG-DEN
13h 39m2 stops
WestJet Logo
12:15 p.m. - 8:52 p.m.DEN-YEG
8h 37m2 stops
C$ 334WestJet
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mar., 30 sep. - mar., 7 oct.
Alaska Airlines Logo
3:30 p.m. - 10:02 p.m.YVR-DEN
5h 32m1 stop
Alaska Airlines Logo
6:20 p.m. - 9:38 a.m.DEN-YVR
16h 18m1 stop
C$ 441Alaska Airlines
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mar., 30 sep. - mar., 7 oct.
Alaska Airlines Logo
1:17 p.m. - 10:02 p.m.YVR-DEN
7h 45m2 stops
Alaska Airlines Logo
6:20 p.m. - 12:12 a.m.DEN-YVR
6h 52m1 stop
C$ 455Alaska Airlines
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Everything you should know

Top routes
YVR-DEN
Cheapest
YYZ-DEN
Most popular
Insights
Insights
Insights
Insights
Cheapest round-trip
C$ 199
Typical prices: C$ 229-461
United Airlines
sáb. 11/10dom. 12/10
YYC - DEN • Direct
Cheapest one-way flights
C$ 124
Typical prices: C$ 258-449
WestJet
dom. 12/10
YVR - DEN • 1 stop
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We hope you love your trip to Castle Rock!
Useful Info

Good to know – Book Cheap Castle Rock Plane Tickets

Low seasonJanuary
Cheapest flightC$ 124
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 Vancouver 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 Edmonton2h 46m
    Flights from Vancouver2h 56m
    Flights from Toronto3h 25m
    Flights from Winnipeg2h 33m
    Flights from Calgary2h 35m
  • What is the cheapest flight to Denver?

    In the last 3 days, the cheapest flight deal to Denver was found on the route from Vancouver, at C$ 198 return. The most popular connection is from Toronto to Denver and KAYAK users have found round-trip deals for as low as C$ 427 in the last 3 days.

  • Which airlines fly to Denver?

    Many airlines fly to Denver, the most common ones being United Airlines, Air Canada, and WestJet. See the amount of flights per week for popular airlines flying to Denver.

  • 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 Vancouver Intl C$ 414, from Calgary C$ 862, from Winnipeg C$ 1,047
  • 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 10000 reviews
7.8Comfort
8.1Boarding
7.0Entertainment
7.1Food
8.5Crew
Airline reviews

All flights were on time. No crowded and had empty seats. All flight attendents were great.

10.0 ExcellentAnonymous, Sep 2025SEA - SAN
Read more Alaska Airlines reviews

All flights were on time. No crowded and had empty seats. All flight attendents were great.

Didn't buy food and did not use entertainment as these were not the purpose of my flight.

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

No Free Wifi and the flight was a tad late.

The plane was clean. They got us to the destination. It was very difficult to hear the announcements at the gate. The person was speaking way too quickly, and the sound system did not carry to all parts of the seating area at the gate. The flight left more than an hour late, which left many of the passengers missing connections.

Awesome. Great flight. Super nice people and I like the extra space

The first leg of the trip was excellent. Lovely flight attendants and comfortable plane. The second leg left a lot to be desired. The flight attendant was rude when I asked for a Diet Coke, the boarding required quite a long walk and the plane was crammed and uncomfortable.

Flight was delayed as it always is with Alaska airlines. Particularly to smaller airports. No AC on the plane so it was miserably hot.

Website could be better with faster access to specific flight information and boarding pass once reservation is made. Not a fan of no seat selection on line. I had to consult gate agent each time to change seats on flights with lots of open seats. This cannot possibly be cost effective for airline. On plus side, Alaska seat legroom seemed larger than American. ns

The flights left both airports on schedule. The flight from Idaho Falls to Seattle was a typical commuter trip. The flight from Seattle to Maui was not good: It was too long for a flight in a single-aisle plane and too cramped. I kept asking myself if I would ever visit Maui again if airlines continue to run this long flight like a typical short commuter flight. I am not looking forward to the trip home.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

The airport crew helped a lot, what I didn’t like? We were not informed that we needed to pick our luggage’s, if the crew at the luggage center didn’t tell me I would have been home without my belongings, I was heading out to my next connecting flight while looking for what gate to go to, I asked one of the crews for help, he told me and he also told me to not forget to grab my luggage’s which was chocking, because on my way out the country that wasn’t required, I just hope none of your customers lost their luggage’s because of this.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

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.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

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.

We were happy with our experience. The price for tickets was much less than Delta and we actually took off and landed a little ahead of scheduled times.

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Horrible flight cancelled had to buy another very expensive ticket

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

Air Canada marooned me in Canada with no way back home during my summer vacation. I had to buy a last minute flight ticket for over $500 to make it back home. I have their credit card and have flown them for years. Never again.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

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