AirHint found the following cheapest return flights from Chicago (ORD) to London (LGW) in October 2026 (see full year).
Return flights
| 07 Oct - 19 Oct | SWISS | ||
| 07 Oct - 18 Oct | Turkish Airlines | ||
| 08 Oct - 18 Oct | Air France | ||
| 16 Oct - 23 Oct | Iberia |
Also check the deals for one-way flights from Chicago to London in October.
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