Finnair Flight BA5428 Deals & Information (2025/2026)

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Finnair Flight 5428 Route Deals From $504

The cheapest prices found with in the last 7 days for return flights were $867 and $504 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 18 - Wed, Sep 3
BWI
Baltimore Washington Intl. Thurgood Marshall
LHR
Heathrow
$867 Roundtrip, found 1 day ago
$867
Roundtrip
found 1 day ago
Select Finnair flight, departing Mon, Aug 18 from Baltimore Washington Intl. Thurgood Marshall to Heathrow, returning Wed, Sep 3, priced at $867 found 1 day ago
Sun, Aug 10 - Tue, Aug 19
BWI
Baltimore Washington Intl. Thurgood Marshall
LHR
Heathrow
$957 Roundtrip, just found
$957
Roundtrip
just found
Select Finnair flight, departing Sun, Aug 10 from Baltimore Washington Intl. Thurgood Marshall to Heathrow, returning Tue, Aug 19, priced at $957 just found