AirHint found the following cheapest one-way flights from Houston (IAH) to London (LGW) in April 2026 (see full year).
One-Way flights
| 20 Apr | Spirit Airlines | ||
| 11 Apr | Frontier Airlines | ||
| 12 Apr | Frontier Airlines | ||
| 05 Apr | Spirit Airlines | ||
| 13 Apr | Condor |
Also check the deals for return flights from Houston to London in April.
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