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

Return flights

24 Mar - 31 Mar	Virgin Atlantic
04 Mar - 11 Mar	Air France
11 Mar - 31 Mar	KLM
04 Mar - 10 Mar	Air France
04 Mar - 18 Mar	Delta
03 Mar - 11 Mar	Air France
24 Mar - 31 Mar	British Airways	direct
11 Mar - 31 Mar	British Airways	direct
25 Mar - 31 Mar	British Airways	direct
01 Mar - 10 Mar	Delta
10 Mar - 14 Apr	Delta
04 Mar - 03 Apr	Air France
10 Mar - 14 Apr	British Airways	direct
27 Mar - 06 Apr	KLM
26 Mar - 29 Apr	KLM
27 Mar - 08 Apr	KLM
27 Mar - 03 Apr	Air Canada
26 Mar - 29 Apr	Iberia	direct
27 Mar - 08 Apr	British Airways	direct
04 Mar - 03 Apr	United	direct

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 493€

Return flights