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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 03/02/25 1 Stopover (LIS) TP0244, TP1366 20h 15min	Return 03/07/25 1 Stopover (LIS) TP1363, TP0243 15h 30min	TAP Air Portugal		$464
Best option Chicago London	Outbound 02/19/25 direct BA1541 07h 35min	Return 03/10/25 direct BA0297 09h 00min	British Airways	?	$585
Chicago London	Outbound 03/02/25 1 Stopover (KEF) FI0852, FI0470 10h 25min	Return 03/07/25 1 Stopover (KEF) FI0471, FI0853 11h 25min	Icelandair		$465