Boston (BOS) to Helsinki (HEL) flight deal in economy from $375
$646 USD
-42%$375 USD
Verified about 24 hours agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
25% of dates checked are available within 10% of the lowest price
Tuesday, December 29th, 2026
10 round-trip options
Returning
Sun, Jan 3, 2027•5 Day Trip
$905 USD
Returning
Mon, Jan 4, 2027•6 Day Trip
$808 USD
Returning
Tue, Jan 5, 2027•7 Day Trip
$808 USD
Returning
Wed, Jan 6, 2027•8 Day Trip
$858 USD
Returning
Thu, Jan 7, 2027•9 Day Trip
$820 USD
Returning
Fri, Jan 8, 2027•10 Day Trip
$808 USD
Returning
Sat, Jan 9, 2027•11 Day Trip
$791 USD
Returning
Sun, Jan 10, 2027•12 Day Trip
$868 USD
Returning
Mon, Jan 11, 2027•13 Day Trip
$571 USD
Returning
Tue, Jan 12, 2027•14 Day Trip
$542 USD