Cheapest one-way flights from Chicago to London in September from 195€

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

One-Way flights

21 Sep Icelandair
09 Sep Icelandair
01 Sep Icelandair
08 Sep Icelandair
15 Sep Icelandair
18 Sep Icelandair
13 Sep Spirit Airlines
20 Sep Icelandair
25 Sep Spirit Airlines
09 Sep British Airways direct

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

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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