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

Return flights

01 Mar - 04 Mar	Lufthansa
23 Mar - 30 Mar	KLM
07 Mar - 17 Mar	Air France
01 Mar - 10 Mar	Air France
04 Mar - 11 Mar	Air France
10 Mar - 24 Mar	Air France
04 Mar - 10 Mar	Air France
04 Mar - 18 Mar	Air France
02 Mar - 10 Mar	KLM
10 Mar - 24 Mar	British Airways	direct
18 Mar - 21 Apr	Air France
28 Mar - 06 Apr	KLM
26 Mar - 08 Apr	Air Canada

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 499€

Return flights