Cheapest return flights from Houston to London in May from $512

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

Return flights

11 May - 20 May Brussels Airlines
03 May - 20 May Air Canada
12 May - 22 May Iberia direct
11 May - 20 May British Airways direct
05 May - 12 May British Airways direct
03 May - 20 May British Airways direct
11 May - 17 May Air Canada
11 May - 17 May British Airways direct
10 May - 30 May Air Canada
20 May - 17 Jun Air Canada
18 May - 02 Jun Air Canada
15 May - 22 May British Airways direct
18 May - 02 Jun American Airlines direct
20 May - 17 Jun American Airlines direct
24 May - 14 Jun Air Canada
24 May - 14 Jun British Airways direct
25 May - 01 Jun British Airways direct

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

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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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