It is an increase of almost 30 percent within two years or less.
In Halifax we pay $1 on top of whateverticketyouhave - and single tickets for adults start at 1.80 (10-pack). So if you don't have a monthly pass, you can still ride the airport express for $2.80, including a transfer. No 24 hour ticket, but still a much better deal. The ride is also longer, because the airport is far out.