Originally Posted by
nbevan
First time I have used delta.com, looking to fly SLC-YVR on May 8. delta.com shows connecting flights leaving at 4:45 in U and T for $253. I found that expedia has the same flights both in T for $222. So I went to kayak, and that also showed flights for $222 - this time on delta.com, both in T

. Seems to be a consistent discrepancy.
Not being used to delta.com, I don't understand why this is happening?
My guess is this is a case of kayak.com and expedia.com having more complex/smarter airfare search engines. The cheapest airfare for your journey is actually a combination of a SLC-PDX fare and a PDX-YVR fare. The complex algorithms behind kayak.com and expedia.com found this but delta.com was pricing out your journey using SLC-YVR fares.