Cheapest one-way flights from Chicago to London in October from 190€

AirHint found the following cheapest one-way flights from Chicago (ORD) to London (LHR) in October 2025 (see full year).

One-Way flights

22 Oct Icelandair
27 Oct Icelandair
10 Oct Sun Country Airlines
01 Oct Icelandair
15 Oct Icelandair
18 Oct Frontier Airlines
30 Oct Icelandair
09 Oct Icelandair
24 Oct Icelandair
16 Oct Icelandair

Also check the deals for return flights from Chicago to London in October.

Skyscanner

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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