Check Your Fare
Enter the fare you have been quoted and get an instant verdict against current market data.
Price Intelligence
Cheap £491
Average £647
Expensive £944+
Volatility: High
Best booking window: 8 weeks ahead
Lowest observed: £454
Month by Month Prices
■ Cheapest: February (£556)
■ Most expensive: December (£944)
Booking Strategy
Seattle to London Gatwick is usually best booked 7 to 10 weeks ahead, with February often giving the best value.
Avoid these periods
December
July
August
Airlines on This Route
✈ British Airways
Primary
✈ Norse Atlantic Airways
✈ JetBlue
✈ American Airlines
Connection hubs
📍 New York
📍 Chicago
📍 Dallas
Visa Requirements
🛂 Visa Required
Electronic Travel Authorization or visa may be required
Varies , 1 day to 6 weeks
Full visa checker →
Route Intelligence
Seattle to London Gatwick is a major USA to Europe corridor driven by leisure, corporate traffic and VFR demand.