Cheap flights from London to Herron Island

View AU$856 flight on Fri, 12 Sep. 2025Opens in a new window

Popular airlines from London to Herron Island

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Cheap Flights from London (LON) to Herron Island (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Mon, 1 Sep. - Mon, 15 Sep.
LGW
London
SEA
Seattle
AU$903 Return, found 6 days ago
AU$903
Return
found 6 days ago
Select Icelandair flight, departing Mon, 1 Sep. from London to Seattle, returning Mon, 15 Sep., priced at AU$903 found 6 days ago
Icelandair
Fri, 5 Sep. - Fri, 12 Sep.
LHR
London
SEA
Seattle
AU$909 Return, found 21 hours ago
AU$909
Return
found 21 hours ago
Select Icelandair flight, departing Fri, 5 Sep. from London to Seattle, returning Fri, 12 Sep., priced at AU$909 found 21 hours ago
United
Thu, 18 Sep. - Tue, 23 Sep.
LHR
London
SEA
Seattle
AU$1,006 Return, found 5 days ago
AU$1,006
Return
found 5 days ago
Select United flight, departing Thu, 18 Sep. from London to Seattle, returning Tue, 23 Sep., priced at AU$1,006 found 5 days ago
Air Canada
Sun, 30 Nov. - Sat, 6 Dec.
LHR
London
SEA
Seattle
AU$1,020 Return, found 13 hours ago
AU$1,020
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 30 Nov. from London to Seattle, returning Sat, 6 Dec., priced at AU$1,020 found 13 hours ago
Delta
Tue, 2 Sep. - Tue, 9 Sep.
LHR
London
SEA
Seattle
AU$1,030 Return, found 4 days ago
AU$1,030
Return
found 4 days ago
Select Delta flight, departing Tue, 2 Sep. from London to Seattle, returning Tue, 9 Sep., priced at AU$1,030 found 4 days ago
Aer Lingus
Mon, 1 Sep. - Mon, 15 Sep.
LHR
London
SEA
Seattle
AU$1,054 Return, found 3 days ago
AU$1,054
Return
found 3 days ago
Select Aer Lingus flight, departing Mon, 1 Sep. from London to Seattle, returning Mon, 15 Sep., priced at AU$1,054 found 3 days ago

Find the cheapest month to fly from London (LON) to Seattle (SEA)

February is typically the cheapest month to fly

From AU$657 - AU$1,415 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.