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

Return flights

25 Mar - 01 Apr	Finnair
24 Mar - 01 Apr	Finnair
23 Mar - 25 Mar	Finnair
23 Mar - 26 Mar	Finnair
25 Mar - 08 Apr	Finnair
29 Mar - 02 Apr	Finnair
19 Mar - 08 Apr	Turkish Airlines
23 Mar - 04 Apr	Finnair
12 Mar - 26 Mar	Finnair
26 Mar - 01 Apr	Turkish Airlines
28 Mar - 02 Apr	Finnair
29 Mar - 04 Apr	Finnair
26 Mar - 02 Apr	Turkish Airlines
08 Mar - 21 Mar	British Airways
08 Mar - 22 Mar	British Airways
23 Mar - 24 Mar	Finnair

Also check the deals for one-way flights from Houston to Helsinki 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 Helsinki in March from $595

Return flights