AirHint found the following cheapest return flights from Chicago (ORD) to London (LHR) in June 2026 (see full year).

Return flights

26 Jun - 06 Jul	ITA Airways
26 Jun - 05 Jul	ITA Airways
02 Jun - 09 Jun	Aer Lingus
08 Jun - 16 Jun	Aer Lingus
02 Jun - 20 Jun	Aer Lingus
01 Jun - 15 Jun	Aer Lingus
26 Jun - 07 Jul	ITA Airways
01 Jun - 11 Jun	Icelandair
01 Jun - 10 Jun	Icelandair
01 Jun - 05 Jun	Aer Lingus
02 Jun - 14 Jun	Icelandair
03 Jun - 14 Jun	Icelandair
01 Jun - 30 Jul	Aer Lingus
03 Jun - 13 Jun	Icelandair
25 Jun - 15 Jul	ITA Airways
30 Jun - 05 Jul	ITA Airways
26 Jun - 17 Jul	ITA Airways
27 Jun - 10 Jul	TAP
18 Jun - 12 Jul	TAP
30 Jun - 12 Jul	SWISS

Also check the deals for one-way flights from Chicago to London in June.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chicago to London in June from $821

Return flights