With Summer prices in effect though it's really unlikely. Every site I checked the Fairmont in Calgary was $299/night plus tax, for Vancouver trying to get a decent hotel in the summer under $270/night plus tax with no key card access downtown is super slim. In off season it's a lot more likely to get deals, but Summer tourism is here. I had quite the headache doing research for my upcoming trip and number crunching so I skipped Calgary altogether due to hotel prices and flaky inquiries.
If price is your number one concern: try to go on Hotwire.com
I've used agoda, hotels.com, trivago, etc. And if you can, try and stay within a similar chain and obtain status, it'll make your life much easier (when you ask for towels, robes, changing sheets etc. They would be way more amicable).
Also, ALWAYS do your flight AND hotel inquiries in privacy/incognito mode. As the websites give you cookies and the more you inquire about a specific location, the more the price gets jacked up. Heck, use one window incognito window for flight and then use another browser for hotels.. (I just checked Calgary now and it's from $119-$289 per night. There are some $149 and $189's as well.)
I also hoard points from work so it's a bit easier for me to upgrade and book flight sometimes.
The keycard thing though.. Is not something I've considered before.. And that's pretty important and I guess it would be tremendously inconvenient to come down every time to meet/gather your visitor.. Perhaps an upscale "residence" via AirBnB?
Not trying to advertise for these sites, I just want to more ladies to consider Vancouver as their touring stop.. And cutting cost is a good way to aid with that

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