Cheapest return flights from Ontario (ONT) to Helsinki (HEL)

Cheapest month: November 2026, from $ 929. Book in one tap, or open a month for every date.

All destinations from Ontario (ONT)

One-wayReturn

  • November 2026

    11–24 Nov 13 nights
    $ 929 return Cheapest month
    Frontier Airlines
    Price seen 9 Oct
    November dates

  • March 2027

    2–9 Mar 2027 7 nights
    $ 972 return
    Iberia
    Price seen 10 Oct
    March dates

  • April 2027

    14–18 Apr 2027 4 nights
    $ 976 return
    British Airways
    Price seen 9 Oct
    April dates

  • July 2027

    20 Jul – 3 Aug 2027 14 nights
    $ 1,176 return
    British Airways
    Price seen 10 Oct
    July dates

  • August 2027

    18 Aug – 1 Sep 2027 14 nights
    $ 1,016 return
    British Airways
    Price seen 10 Oct
    August dates
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Updated Oct 10, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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