AirHint found the following cheapest return flights from Chicago (ORD) to London (LGW) in October 2026 (see full year).
Return flights
| 12 Oct - 19 Oct | Turkish Airlines | ||
| 15 Oct - 20 Oct | Turkish Airlines | ||
| 20 Oct - 10 Nov | SWISS | ||
| 08 Oct - 14 Oct | TAP | ||
| 13 Oct - 27 Oct | SWISS | ||
| 24 Oct - 28 Oct | SWISS |
Also check the deals for one-way flights from Chicago to London in October.
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