Well... DING is usually better that what the general available flights are going for. For example... out of Manchester, I booked DING for $125 rt with tax to Orlando for May and at that time that I booked the cheapest flight was $79 one way plus tax. Now of course they went on sale after that for similar prices but with a lot less availability so I would just figure out that if you can get a 'cheap' flight book it and watch for a cheaper one and just rebook a sale price/DING fare if you would be able to use a credit within the year. That is what we did for May and it worked really well. I think that it all depends on how flexible your dates and times are.