Question : What is the cheapest day to fly in the next four weeks?
Answer : As of Apr 17th, the cheapest day to fly from Portland to London is Apr 26th. Tickets are currently being sold for $742, which is 36% below the average price for this route.
Question : How much should a trip from Portland (PWM) to London (LHR) cost?
Answer : Flight prices fluctuate a lot more than most routes from the United States for PWM to LHR. They range anywhere from $742 to $4,206. The further out you book a route, the more likely you are to save.
Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : In May, the cheapest day to fly is Saturday. Being flexible with your travel days garners even more savings during booking.
Question : How long do most people visit London?
Answer : Of course you're not most people, but if you were, you'd stay roughly 10 days.