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

Return flights

03 Mar - 10 Mar	British Airways
06 Mar - 15 Mar	Delta
12 Mar - 26 Mar	Virgin Atlantic
15 Mar - 29 Mar	Virgin Atlantic
29 Mar - 08 Apr	Finnair	direct
13 Mar - 20 Mar	United	direct
06 Mar - 14 Mar	Air Canada
12 Mar - 26 Mar	United	direct
15 Mar - 29 Mar	United	direct
23 Mar - 30 Mar	United	direct
06 Mar - 15 Mar	Finnair	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 441€

Return flights