Chicago to London Flights on Aer Lingus from $655.79*

Aer Lingus offers flights to London Heathrow (LHR) from Chicago (ORD) with a fast connection in Dublin Airport's Terminal 2.

Why fly to London with Aer Lingus?

Book your flight to London with Aer Lingusand start your UK adventure with a warm welcome on board. Enjoy a complimentary meal and drink, relax with your choice of movies, shows, or music, and stay connected with Wi-Fi and mobile access — all designed to make your journey as comfortable and enjoyable as possible.

Things to do and places to see in London

The capital of Great Britain needs no introduction. A modern and vibrant city is waiting for you to show what it's got. There are plenty of things to do in London no doubt. Experience panoramic city views from the top of the London Eye or the viewing point at The Shard. Walk around the Shaftesbury Memorial Fountain at Piccadilly Circus or visit Tower Bridge.

Then, spend an afternoon in Hyde Park horseback riding or strolling around the Rose Garden. See relics from two of the ancient world's seven wonders at the British Museum - the Mausoleum of Halicarnassus and the Temple of Artemis at Ephesus where you can also view Imperial jades, Aztec art and the Classical Greek era Parthenon Marbles.

If you are looking for more excitement, take a boat ride to Greenwich. Catch the boat just outside Westminster bridge and sail down the Themes right to the small town of Greenwich where time started! Enjoy a walk in the park, take a look around the famous Cutty Sark merchant ship. During your visit to London, you can travel by tube or bus throughout the day getting from place to place as you wish.