Which airports does American Airlines flies between for Chicago-London?
For flights between Chicago and London, American Airlines flies from the following airport routes: O hare International Airport (ORD) to Heathrow (LHR)
What do American Airlines flights from Chicago to London cost?
One of American Airlines cheapest prices for a Chicago to London flight we have right now is AED 793.
On average though, flights with American Airlines cost $ 847.56 for the route Chicago to London, though it depends a lot on the season and how far in advance you book your tickets.