Cheapest return flights from Houston to London in September from $587

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

Return flights

23 Sep - 25 Sep Air Canada
08 Sep - 15 Sep Air France
09 Sep - 16 Sep Air Canada
09 Sep - 16 Sep Iberia direct
08 Sep - 15 Sep Finnair direct
12 Sep - 14 Sep Scandinavian Airlines
10 Sep - 08 Oct KLM
16 Sep - 26 Sep Air France
16 Sep - 26 Sep British Airways direct
23 Sep - 25 Sep American Airlines direct
10 Sep - 08 Oct British Airways direct
12 Sep - 14 Sep American Airlines direct

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

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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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