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

Return flights

30 Jul - 04 Aug	Air Canada
13 Jul - 09 Aug	Air Canada
15 Jul - 02 Aug	British Airways	direct
17 Jul - 31 Jul	British Airways	direct
13 Jul - 09 Aug	British Airways	direct
18 Jul - 01 Aug	British Airways	direct
01 Jul - 22 Jul	British Airways	direct
02 Jul - 14 Jul	Air Canada
02 Jul - 14 Jul	British Airways	direct

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

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 July from 521€

Return flights