Direct flights available:
333 PER WEEK
Popular non-direct routes for this connection are O'Hare Intl - Keflavik Intl - Gatwick, O'Hare Intl - Arlanda - Heathrow and O'Hare Intl - Frankfurt Intl - Heathrow.
You can fly from Chicago to London indirect via Keflavik Intl, Arlanda or Frankfurt Intl.
Direct flights available on