Question : How long do most people stay in Leeds when they fly in from Philadelphia?
Answer : Of course you're not most people, but if you were, you'd stay roughly 52 days.
Question : Is price more important than specific travel days for you?
Answer : In December, Sunday is your cheapest day to fly. Flexibility is paramount when booking travel plans in order to keep costs down.
Question : Are prices changing frequently for this route?
Answer : Prices for this trip tend to fluctuate a lot more than others. Remember, the sooner you book, the more you're able to save.