Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to London. Flights to London from Peoria, Illinois in November are about $1,268 on average during November, but can be found for as low as $705.
It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
A simple way to save on the total cost of your ticket is to fly from Peoria, Illinois to London at noon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the morning.