As Shanwickman stated, EI flights to ACE on sale Mon, Wed, Fri, Sun,
times seem to be BFS 06.45 - ACE - BFS 16.10.
Flights to TFS on sale Tues, Thurs, Sat,
times BFS 14.40 - TFS - BFS 00.20.
Unless fares are not currently accurate but for TFS base price of £127.33 (£49.99 each way ex charges/tax), however ACE for November base price of £418.46 (cheapest being Mon, wed at £184.99 each way!!!).