AirHint found the following cheapest return flights from Houston (HOU) to Bucharest (OTP) in May 2026 (see full year).

Return flights

12 May - 19 May	Air France
11 May - 18 May	British Airways
13 May - 20 May	British Airways
18 May - 25 May	British Airways
06 May - 13 May	Air Canada
04 May - 11 May	Air France
05 May - 12 May	United
19 May - 26 May	British Airways
08 May - 15 May	British Airways
10 May - 17 May	British Airways
26 May - 02 Jun	Air Canada
25 May - 01 Jun	British Airways
27 May - 03 Jun	British Airways
28 May - 04 Jun	Air Canada
29 May - 05 Jun	Air Canada
31 May - 07 Jun	Air Canada
30 May - 06 Jun	British Airways

Also check the deals for one-way flights from Houston to Bucharest in May.

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 Bucharest in May from 463€

Return flights