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

Return flights

14 Mar - 20 Mar	Turkish Airlines
16 Mar - 23 Mar	Turkish Airlines
11 Mar - 14 Mar	Turkish Airlines
11 Mar - 18 Mar	Turkish Airlines
09 Mar - 14 Mar	Turkish Airlines
07 Mar - 14 Mar	Turkish Airlines
14 Mar - 21 Mar	Turkish Airlines
11 Mar - 19 Mar	Turkish Airlines
03 Mar - 19 Mar	Turkish Airlines
05 Mar - 13 Mar	Turkish Airlines
27 Mar - 08 Apr	Turkish Airlines
26 Mar - 04 Apr	Turkish Airlines

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

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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Cheapest return flights from Houston to London in March from $770

Return flights