Finnair Flight 5438 Deals & Information (2025/2026)

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Finnair Flight 5438 Route Deals From $383

The cheapest prices found with in the last 7 days for return flights were $744 and $383 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 9 - Tue, Sep 23
BOS
Logan Intl.
LHR
Heathrow
$744 Roundtrip, found 1 hour ago
$744
Roundtrip
found 1 hour ago
Select Finnair flight, departing Tue, Sep 9 from Logan Intl. to Heathrow, returning Tue, Sep 23, priced at $744 found 1 hour ago