Flights from Chicago, IL to London, United Kingdom
No Direct Flights Currently Available
Chicago, IL (ORD) β London, United Kingdom (LHR)
We're currently unable to find direct flights on this route. This could be due to:
- Seasonal route availability
- Limited airline inventory for selected dates
- Route temporarily suspended
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FAQs - ORD to LHR Flights
How long is the flight from Chicago, IL to London, United Kingdom?
Direct flights from Chicago, IL (ORD) to London, United Kingdom (LHR) take approximately 3-6 hours. Connecting flights may add 2-4 hours depending on layover location. For the fastest journey, look for nonstop flights which are typically available on this popular route.
When is the best time to book ORD to LHR flights?
For the best prices on ORD to LHR flights, book 6-8 weeks in advance for domestic routes or 2-4 months ahead for international travel. Shoulder seasons (April-May, September-October) offer good weather and moderate prices. Peak season months (June, July) have higher prices, while January and February typically offer the best deals.
What are the cheapest days to fly from Chicago, IL to London, United Kingdom?
Tuesday and Wednesday departures are typically 15-25% cheaper than weekend flights on the ORD to LHR route. Saturday is usually the most expensive day to fly. For additional savings, consider red-eye flights or early morning departures, which often have lower fares and less crowded airports.
Which airlines fly from ORD to LHR?
Major carriers on this route include American Airlines, United, and other domestic and international airlines. O'Hare is a major hub for both American and United. Check for connecting flight deals through Chicago.
What should I know about flying from Chicago, IL airport?
O'Hare is a major hub for both American and United. Check for connecting flight deals through Chicago. Book flights that depart mid-morning or early afternoon for the smoothest experience - these times typically have shorter security lines and fewer delays.

