Sorry I've been having issues with my internet, so didn't reply before now. Thanks to all who have replied and given advice. Last night I found a deal on Expedia for an Air Canada flight from London to here. I don't have any experience with the airline, but it was too good of a deal to pass up. It was 470 GBP when all the other flights I could find were 600 and up. I'm afraid they are just going to keep going up at this point.
I use NWA/KLM for the majority of my travel but have to go with whichever airline that can bring in the best price, and this time they didn't.
Funny thing though, most search engines didn't even search the Air Canada site. Even Expedia.co.uk didn't find the flight I booked with Expedia.com. Strange.. but I'm just happy I finally found a better price.
I will still be searching as always, so will pass along any sales I may find!