Flights To Washington

I'm traveling to London next summer for a week, but prices are unreasonably high ... indices?

Try BA.com. They list the dates and give you the price of seven days each way. Then take the cheapest day and try expedia.com, Travelocity and see if they are cheaper. Keep in mind that the longer you leave the more expensive they get. We got a good deal last summer - try to avoid peak days / hours and get a cheaper flight

I always had the best luck with travel agents. Contact one. They will be able to compare all the airlines.