Cheapest one-way flights from Chicago to London in August from 365€

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 August 2025 (see full year).

One-Way flights

09 Aug TAP
29 Aug TAP
09 Aug British Airways direct
29 Aug British Airways direct

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

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.

Book a cheap hotel in London

Cheap car rent in London