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Price Intelligence
Cheap £495
Average £652
Expensive £951+
Volatility: Medium
Best booking window: 6 weeks ahead
Lowest observed: £448
Month by Month Prices
■ Cheapest: February (£560)
■ Most expensive: December (£951)
Booking Strategy
London to Seattle is usually best booked 5 to 8 weeks ahead, with February often giving the best value.
Avoid these periods
December
July
August
Airlines on This Route
✈ British Airways
Primary
✈ American Airlines
✈ Virgin Atlantic
✈ United Airlines
Route Intelligence
London to Seattle is a core Europe to USA long-haul corridor shaped by business, leisure and transatlantic hub demand.