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Our cheapest offers for flights from United Kingdom a Chicago O'Hare

Here you can compare cheap flights from United Kingdom to Chicago O'Hare (ORD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Chicago O'Hare. Prices and availability may change at any time.

Flights from London Heathrow (LHR) to Chicago O'Hare (ORD)

	Outbound	Return	Airlines	Baggage	Price
London Heathrow Chicago O'Hare	Outbound 03/29/25 1 Stopover (JFK, LGA) AA6930, AA4759 16h 13min	Return 04/02/25 1 Stopover (YYZ) AA6077, AA6917 10h 55min	American Airlines	?	$605
London Heathrow Chicago O'Hare	Outbound 03/29/25 1 Stopover (YYZ) UA8309, UA8533 19h 55min	Return 04/02/25 1 Stopover (EWR) UA0702, UA0940 12h 10min	United Airlines	?	$679
London Heathrow Chicago O'Hare	Outbound 03/29/25 1 Stopover (HEL) AY1338, AY0009 28h 15min	Return 04/02/25 direct AY5748 07h 50min	Finnair	?	$687