Cheapest return flights from Houston to London in September from $513

AirHint found the following cheapest return flights from Houston (IAH) to London (LGW) in September 2025 (see full year).

Return flights

03 Sep - 09 Sep Frontier Airlines
05 Sep - 12 Sep Frontier Airlines
20 Sep - 22 Sep Spirit Airlines
10 Sep - 20 Sep Spirit Airlines
08 Sep - 21 Sep Frontier Airlines
22 Sep - 24 Sep Spirit Airlines
21 Sep - 24 Sep Spirit Airlines
06 Sep - 10 Sep Frontier Airlines
04 Sep - 09 Sep Frontier Airlines
04 Sep - 10 Sep Frontier Airlines
28 Sep - 05 Oct Spirit Airlines
16 Sep - 07 Oct Spirit Airlines
24 Sep - 02 Oct Spirit Airlines
25 Sep - 10 Oct Spirit Airlines
25 Sep - 04 Oct Spirit Airlines
18 Sep - 02 Oct Spirit Airlines
09 Sep - 02 Oct Spirit Airlines
22 Sep - 08 Oct jetBlue

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

Skyscanner

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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