Cheapest return flights from Houston to London in May from $635

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

Return flights

06 May - 12 May ITA Airways
01 May - 12 May Air Canada
05 May - 12 May British Airways direct
11 May - 20 May American Airlines direct
06 May - 15 May American Airlines direct
06 May - 12 May American Airlines direct
01 May - 10 May Air Canada
01 May - 12 May British Airways direct
01 May - 10 May Austrian Airlines direct
21 May - 31 May Air France
31 May - 07 Jun WestJet
31 May - 07 Jun Austrian Airlines direct
09 May - 13 Jun Finnair 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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