If you want a cheap flight from Leeds Bradford to Toronto, you've got zero airlines to choose from.
You can use the filters on your search to see more flights and find cheaper rates – Toronto has more than one airport. So if you don't need to fly into Toronto City Centre Airport, it's worth checking your other options.
If you're planning on going to Toronto during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.