Flight Search Tools Help
 

I have used most of the search tools that are out there but have yet to figure out if there is a tool, or more likely, a way to get one of the search tools that I use, to search and provide a list of the best prices for flights from an originating city to multiple destinations on specific dates at one time (instead of having to search each city one at a time). For example, is there a way to type in WAS - LON, PAR, BRU, DUB, AMS leaving on 7/12, return 7/20. Can you do this on ITA Software or on one of the Dream Maps? Thanks.

The best way of tackling this I can think of with ITA is choosing the "any airport within 300 miles" option
for London, that would include DUB,PAR,BRU,AMS

it takes a while to process but for your dates it comes out with
$671 IAD-LHR on BA as the cheapest option...if you scroll further down, there are options to BRU,AMS,CDG, and a combination of cities