Cheapest return ORD–LHR flights, October

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

Return flights

26 Oct - 04 Nov Air Canada
14 Oct - 23 Oct Air Canada
10 Oct - 22 Oct TAP
14 Oct - 22 Oct TAP
03 Oct - 11 Oct TAP
21 Oct - 30 Oct TAP
16 Oct - 30 Oct TAP
08 Oct - 16 Oct TAP
09 Oct - 13 Oct TAP
03 Oct - 15 Oct TAP
07 Oct - 21 Oct TAP
26 Oct - 05 Nov Scandinavian Airlines
27 Oct - 05 Nov Scandinavian Airlines
31 Oct - 14 Nov Scandinavian Airlines
27 Oct - 05 Nov Finnair direct
26 Oct - 05 Nov Finnair direct
31 Oct - 14 Nov British Airways direct
26 Oct - 04 Nov British Airways direct

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.