AirHint found the following cheapest return flights from Houston (HOU) to London (LHR) in April 2026 (see full year).

Return flights

08 Apr - 20 Apr	Air Canada
08 Apr - 14 Apr	Iberia	direct
01 Apr - 22 Apr	Iberia	direct
01 Apr - 14 Apr	Air Canada
01 Apr - 14 Apr	Iberia	direct
26 Apr - 11 May	Air Canada
12 Apr - 02 May	Air Canada
26 Apr - 11 May	British Airways	direct
08 Apr - 20 Apr	American Airlines	direct
17 Apr - 24 Apr	British Airways	direct
27 Apr - 04 May	British Airways	direct
10 Apr - 14 Apr	British Airways
01 Apr - 08 Apr	Air Canada
16 Apr - 25 Apr	Air Canada
12 Apr - 02 May	United	direct

Also check the deals for one-way flights from Houston to London in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Houston to London in April from $529

Return flights