As per a recommendation by a user, I have now logged onto YAPTA, a website which allows you to track the price of flights you might want to take in the future. I am hoping to go to England at some point within the next four months, so all I did was enter the details, save the trip, and allow the website to find good fares for me. I guess this concept works best if you're flexible with your trip and can plan ahead. If I do get a ticket and register those details with YAPTA, they will notify me via email if there is a price drop for which I get credit I can use toward a future flight. Sounds good. Let's see how it works out over the next few months.