Flights from London, United Kingdom to Seattle, WA

Direct flights from London, United Kingdom (LHR) to Seattle, WA (SEA) take approximately 10h 4m. Connecting flights may add 2-4 hours depending on layover location. For the fastest journey, look for nonstop flights which are typically available on this popular route.

For the best prices on LHR to SEA flights, book 6-8 weeks in advance for domestic routes or 2-4 months ahead for international travel. Domestic flights are typically 20-40% cheaper in off-peak months. Peak season months (July, August) have higher prices, while January and February typically offer the best deals.

Tuesday and Wednesday departures are typically 15-25% cheaper than weekend flights on the LHR to SEA route. Saturday is usually the most expensive day to fly. For additional savings, consider red-eye flights or early morning departures, which often have lower fares and less crowded airports.

Multiple airlines serve the LHR to SEA route. Compare prices across all carriers using Fly2Any to find the best combination of price, timing, and amenities.

The cheapest months to fly from LHR to SEA are typically January, February, September. Domestic flights are typically 20-40% cheaper in off-peak months. Avoid peak travel periods like July and August when prices can be 30-50% higher. Use Fly2Any's price alerts to get notified when fares drop.

Baggage allowances vary by airline and fare class. Most full-service carriers include one checked bag (up to 50 lbs) on this route. Budget carriers may charge live pricing for checked bags. All airlines allow one personal item free. Compare total costs including baggage fees when booking to get the best deal.

Yes, several airlines offer nonstop flights from LHR to SEA. Direct flights take approximately 10h 4m. If you're flexible with your schedule, connecting flights through major hubs like ATL or ORD may offer lower prices.

Prices for LHR to SEA flights typically range with live pricing roundtrip for economy class, depending on when you book and travel dates. Use Fly2Any to compare all airlines and find current deals. Setting a price alert ensures you never miss a fare drop.