Are there nonstop flights from London (LHR) to Seattle (SEA)?

Yes. Delta Air Lines, Alaska Airlines, British Airways, Virgin Atlantic fly this route. Flight time is about 9h 34m.

What is the fastest connection from London (LHR) to Seattle (SEA)?

via Reykjavík ≈ 10h 4m, via Dublin ≈ 10h 6m, via Calgary ≈ 10h 6m (estimated flying time, excluding layovers).

How many miles is an award flight from London (LHR) to Seattle (SEA)?

from 27,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

London → Seattle

London Heathrow Airport (LHR) to Seattle–Tacoma International Airport (SEA)・7,702 km

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Nonstop flights available (4 airlines). Flight time about 9h 34m. Nonstop return flights also operate.

With milesANA 27,500 miles+ (via FRA)JAL 37,000 miles+ (nonstop)Economy, one way, estimate. Tap a connection for miles by cabin.

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Nonstop flights

Award miles (one way, estimate)

JAL Mileage Bank — partner airline award
BA, AS only · total distance ≈ 4,786 mi (band 4,001–6,000)
Economy
37,000
Premium economy
46,000
Business
60,000
First
90,000

Estimates from the airlines' published award charts (as of 2026-11-02). Seat availability, fuel surcharges and stopover rules are not included — always check with the airline before booking.

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Best places to connect

47 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.

Nonstop from London

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Nonstop flights

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Nonstop from London