Our cheapest offers for flights from Chicago to United Kingdom

Here you can compare cheap flights from Chicago (CHI) to United Kingdom 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 United Kingdom. Prices and availability may change at any time.

Flights from Chicago (CHI) to London (LON)

	Outbound	Return	Airlines	Baggage	Price
Chicago London	Outbound 04/12/25 1 Stopover (KEF) FI0852, FI0472 13h 10min	Return 04/27/25 1 Stopover (KEF) FI0473, FI0855 11h 35min	Icelandair		$541 found yesterday
Best option Chicago London	Outbound 04/12/25 direct BA1601 07h 55min	Return 04/27/25 direct BA1546 08h 35min	British Airways	?	$720 found yesterday
Chicago London	Outbound 04/12/25 1 Stopover (KEF) FI0852, FI0472 13h 10min	Return 04/27/25 1 Stopover (KEF) FI0473, FI0855 11h 35min	Icelandair		$542 found yesterday