Direct flights available:
137 PER WEEK
Popular non-direct routes for this connection are Dulles Intl - Keflavik Intl - Gatwick, R Reagan Nat - Ottawa Intl - Heathrow and Baltimore - Keflavik Intl - Gatwick.
You can fly from Washington DC to London indirect via Keflavik Intl, Ottawa Intl or Copenhagen Airport.
Direct flights available on