Cheapest return flights from Houston to London in May from $651

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

Return flights

07 May - 15 May Air Canada
09 May - 15 May Air Canada
12 May - 18 May Finnair
10 May - 27 May Air Canada
21 May - 31 May Air Canada
25 May - 02 Jun Air Canada
22 May - 31 May Air Canada
24 May - 31 May Air Canada
21 May - 25 May Air Canada
31 May - 15 Jun Air Canada
23 May - 31 May Spirit Airlines
06 May - 17 Jun Spirit Airlines
20 May - 29 May Alaska Airlines
27 May - 08 Jun Turkish Airlines

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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