Cheap Flights from Heathrow Airport to Seattle (SEA) Find and Compare the Best Airline Deals | Skyticket

Departure Date

2025/11
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2025/11
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Total Fares（Round-Trip/Economy）: USD /Per Person

* Displayed fare(s) may differ from the actual search result

Heathrow－Seattle-Tacoma Airport
November Lowest Airfares
USD723

The airfare displayed above is for Delta Air Lines

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Heathrow－Seattle-Tacoma Airport
December Lowest Airfares
USD721

The airfare displayed above is for American Airlines

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Heathrow－Seattle-Tacoma Airport
January Lowest Airfares
USD642

The airfare displayed above is for American Airlines

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Heathrow－Seattle-Tacoma Airport
February Lowest Airfares
USD3,383

The airfare displayed above is for American Airlines

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Heathrow－Seattle-Tacoma Airport
March Lowest Airfares
USD628

The airfare displayed above is for Icelandair

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London (UK)－Seattle
Estimated Flight Time
9 Hours 45 Minutes
London (UK)－Seattle
Number of Operating Airlines
20

Operating Airlines for Heathrow－Seattle-Tacoma Airport Route
Non-StopDelta Air Lines

Non-StopAmerican Airlines

Non-StopBritish Airways

Non-StopVirgin Atlantic

Air Canada

Air France

AeroMéxico

Finnair

Aer Lingus

Icelandair

Iberia Airlines

Klm Royal Dutch Airlines

Lufthansa

Scandinavian Airlines

Turkish Airlines

United Airlines

West Jet

LCCSwissair

LCCAustrian Airlines

LCCBrussels Airlines

Other Destinations from:London (UK)

Heathrow－Boston(Logan)
USD458〜
Heathrow－Washington D.C(Washington Dulles)
USD581〜
Heathrow－Washington D.C(Ronald Reagan Washington National)
USD640〜
Heathrow－Washington D.C(Baltimore-Washington)
USD714〜
Heathrow－Chicago(O'Hare)
USD576〜
Heathrow－Chicago(Midway)
USD1,618〜
Heathrow－Dallas(Love Field)
USD838〜
Heathrow－Dallas(/Fort Worth)
USD872〜
* Fares vary in accordance to seat availability
Other Departures to: Seattle

Gatwick Airport－Seattle(-Tacoma)
USD573〜
Manchester Airport－Seattle(-Tacoma)
USD692〜
Edinburgh Airport－Seattle(-Tacoma)
USD813〜
Birmingham Airport－Seattle(-Tacoma)
USD884〜
* Fares vary in accordance to seat availability