Cheapest return flights from Washington to Helsinki in May from $517

Best time to book flights for Washington (DCA) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest return flights from Washington (DCA) to Helsinki (HEL) in May 2025 (see full year).

Return flights

07 May - 14 May Delta
01 May - 08 May Delta
05 May - 12 May Delta
13 May - 20 May Delta
28 May - 04 Jun Delta
10 May - 17 May Delta
19 May - 26 May Delta
03 May - 10 May Delta
31 May - 07 Jun Delta
02 May - 10 May Delta
22 May - 29 May Delta
01 May - 04 May British Airways
25 May - 01 Jun Delta

Also check the deals for one-way flights from Washington to Helsinki in May.

Skyscanner

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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