What do Aer Lingus flights from London to Washington, D.C. (Arlington County), VA cost?
One of Aer Lingus cheapest prices for a London to Washington, D.C. (Arlington County), VA flight we have right now is £ 683.
On average though, flights with Aer Lingus cost £ 1141.30 for the route London to Washington, D.C. (Arlington County), VA, though it depends a lot on the season and how far in advance you book your tickets.