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

Return flights

12 Jun - 15 Jun	jetBlue
25 Jun - 01 Jul	TAP
18 Jun - 02 Jul	TAP
11 Jun - 25 Jun	TAP
25 Jun - 04 Jul	TAP
25 Jun - 11 Jul	TAP
25 Jun - 18 Jul	TAP
21 Jun - 05 Jul	TAP
28 Jun - 06 Jul	TAP
25 Jun - 06 Jul	TAP
16 Jun - 01 Jul	Scandinavian Airlines
17 Jun - 28 Jun	TAP
30 Jun - 07 Jul	Scandinavian Airlines
02 Jun - 27 Jun	Scandinavian Airlines
17 Jun - 28 Jun	British Airways	direct
02 Jun - 27 Jun	British Airways	direct

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Chicago to London in June from 704€

Return flights