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

Return flights

29 Jun - 17 Jul	Spirit Airlines
30 Jun - 10 Jul	Spirit Airlines
22 Jun - 29 Jun	Spirit Airlines
20 Jun - 25 Jun	Spirit Airlines
30 Jun - 14 Jul	Spirit Airlines
18 Jun - 30 Jun	WestJet
21 Jun - 28 Jun	Spirit Airlines
18 Jun - 25 Jun	Volaris
16 Jun - 20 Jun	WestJet
27 Jun - 08 Jul	Frontier Airlines
24 Jun - 30 Jun	jetBlue
27 Jun - 29 Jun	Spirit Airlines
27 Jun - 15 Jul	Frontier Airlines
27 Jun - 07 Jul	Frontier Airlines
30 Jun - 17 Jul	Spirit Airlines
20 Jun - 11 Jul	Spirit Airlines
29 Jun - 14 Jul	Spirit Airlines
18 Jun - 22 Jun	Spirit Airlines
25 Jun - 09 Jul	Spirit Airlines
23 Jun - 25 Jun	WestJet

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 $836

Return flights