AirHint found the following cheapest one-way flights from Chicago (ORD) to London (LGW) in April 2026 (see full year).
One-Way flights
| 26 Apr | Air Canada | ||
| 18 Apr | jetBlue | ||
| 04 Apr | Spirit Airlines | ||
| 12 Apr | Icelandair |
Also check the deals for return flights from Chicago to London in April.
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