AirHint found the following cheapest return flights from Houston (IAH) to London (LHR) in June 2025 (see full year).

Return flights

30 Jun - 09 Jul	Spirit Airlines
22 Jun - 29 Jun	Spirit Airlines
20 Jun - 25 Jun	Spirit Airlines
21 Jun - 28 Jun	Spirit Airlines
20 Jun - 27 Jun	Spirit Airlines
15 Jun - 24 Jun	Spirit Airlines
30 Jun - 10 Jul	Spirit Airlines
18 Jun - 25 Jun	Volaris
25 Jun - 14 Jul	Spirit Airlines
17 Jun - 25 Jun	Spirit Airlines
27 Jun - 15 Jul	Spirit Airlines
19 Jun - 03 Jul	jetBlue
27 Jun - 29 Jun	Spirit Airlines
16 Jun - 20 Jun	WestJet
25 Jun - 02 Jul	Spirit Airlines
27 Jun - 08 Jul	Frontier Airlines
19 Jun - 29 Jun	jetBlue
27 Jun - 07 Jul	Frontier Airlines
18 Jun - 01 Jul	Volaris
25 Jun - 09 Jul	Spirit Airlines

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

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 June from $794

Return flights