With Netflights, you can compare lots of flights to London in United Kingdom. It's free and easy. We've gone through the 114 weekly flights connecting Chicago and London, operated by 12 airlines – so you can see all your options before you book.
There are actually three airports in London. We've scanned all of the flights into London and, on average, the cheapest airport to fly into is London City Airport (LCY). Look out for flights with JetBlue too, as they tend to have the cheapest prices.
Chicago O'hare International Airport is the cheapest airport to fly to London from. Searching by month is the best way to get a feel for the overall cost of flights throughout the year.
The flight to London from Chicago takes roughly 9 hrs 45 mins. If you need somewhere to stay, take a look at our hotel options – you can sometimes save even more when you book your accommodation with your flight. Even if you don’t book, the prices will give you a good indication of how much hotels cost in United Kingdom.