I'm so confused what you're asking for here, sorry. Your title references YVR but your post is about MCI & SFO?!
UA only flies E175s between MCI and SFO non-stop tomorrow. There are two scheduled- 6am and 6pm from MCI to SFO.
How does YVR factor into this? UA does fly an E175 from SFO to YVR daily - the 905p departure.
-RM