Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : December 14th offers bookings (as of December 5th) that are 15% below the average price for this route. Saving on flight fares means you'll have more cash in hand for the trip.
Question : How many days should you spend in London if you're flying in from Detroit?
Answer : Of course you're not most people, but if you were, you'd stay roughly 13 days.
Question : Is price more important than specific travel days for you?
Answer : Thursday is your cheapest day to fly in December. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Do prices change more for this route than others?
Answer : Flight prices for DTW to LGW fluctuate a lot more than the majority of routes. Prices tend to be lower the further out you book.