Fly nonstop from Chicago to London for $553 round-trip on British Airways.
Seen below, we found seats departing ORD on Sunday, March 19, returning from LHR on Monday, March 27.
Other dates are available for travel from January through March.
Visit our fare details for booking info.
Need a room in London? Here's what's available for the above dates on Hotelwatchdog.
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