$509 Find Cheap Flights from London to Chicago - Compare and Save

The cheapest return flight from London to Chicago O'Hare Intl Airport costs $626 on the route between London Heathrow Airport (LHR) and Chicago O'Hare Intl Airport (ORD). It is also the most popular route.

Your flight ticket price will generally be cheaper if you fly to Chicago on a Thursday and more expensive on a Saturday. On your return trip to London, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

The cheapest month for flights from London to Chicago O'Hare Intl Airport is February, where tickets cost $627 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,047 and $962 respectively.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $801 on average.

In the past 5 days, the cheapest round-trip tickets from London to Chicago were found on Icelandair ($655) and Lufthansa ($665).

American Airlines connects London to Chicago with 21 flights per week and both British Airways and United Airlines also offer 21 flights per week.

Weekly flights between London and Chicago historically see delays in approximately 11% of cases, with the average delay over the past year being 179 minutes.

Typically, flights leaving at night tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Statistically, Wednesday is the day of the week with the fewest delays on this flight route, while Tuesday has typically experienced more delays than other days.

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 6% of their flights encountering any delays.

Reykjavik (KEF) is the top choice – 44% of KAYAK users who clicked on 1-stop flights from London to Chicago picked an itinerary connecting there.

Flights via Zurich (ZRH) offer the most affordable fares, with an average round-trip price of $525.

Consider flying via Dublin (DUB) for the shortest journey. The average one-way travel time for flights connecting there is 11h 41m.

If you prefer a quick connection, Dublin (DUB) often has the shortest layovers from London to Chicago, with an average of 1h 40m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are 9 nonstop flights that take off from London and land in Chicago O'Hare Intl Airport, with an average flight time of 8h 53m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 63 flights and there are the same amount of flights each day (9).