Cheapest one-way flights from Chicago to London in October from $188

Best time to book flights for Chicago (ORD) to London (LHR) flights at AirHint

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

One-Way flights

23 Oct Icelandair
08 Oct Icelandair
29 Oct British Airways direct
19 Oct British Airways direct
15 Oct Iberia direct
27 Oct Air Canada
08 Oct British Airways direct
12 Oct Delta
04 Oct British Airways direct
09 Oct British Airways direct

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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