AirHint found the following cheapest one-way flights from Chicago (ORD) to London (LHR) in June 2026 (see full year).
One-Way flights
| 20 Jun | Aer Lingus | ||
| 02 Jun | Aer Lingus | ||
| 15 Jun | Aer Lingus | ||
| 04 Jun | Spirit Airlines | ||
| 09 Jun | Aer Lingus | ||
| 23 Jun | Spirit Airlines | ||
| 01 Jun | Aer Lingus | ||
| 19 Jun | Aer Lingus | ||
| 13 Jun | Aer Lingus | ||
| 11 Jun | Air Canada |
Also check the deals for return flights from Chicago to London in June.
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