Helping travelers to find the best flight offers
Fly from Seattle to London with confidence—our search scans over 700 airlines, 50+ agencies and more than 5 top booking systems to uncover the best prices, schedules and travel conditions for your trip. Compare fares and connections in seconds to find the ideal balance of cost and convenience, then book with the option that suits your schedule and preferences.
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Seattle to London:
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Unable to find information about the schedule of direct flights from
London is served by several distinct airports, each catering to different types of travel. Heathrow is the main international hub used by legacy carriers and many long-haul services; it typically feels premium, is about 23 km west of central London, and is reachable by the Elizabeth Line or Heathrow Express in roughly 15–30 minutes (fares vary by service). Gatwick, a large international and charter airport south of the city, often hosts a mix of full-service and leisure airlines and is about 45 km away; trains to the city take around 30–40 minutes with a range of ticket prices. Stansted and Luton tend to be favored by low-cost carriers and budget-conscious travelers; both sit further out (roughly 50–65 km) with coach and airport rail options taking 45–70 minutes at typically lower fares. London City is the closest to the financial districts (about 11 km east of central London) and is commonly used for short-haul business flights, offering fast DLR and taxi links in around 20–30 minutes. Pros across the network include broad route choice and frequent transport links; cons can include congestion, variable transfer times and extra charges for budget carriers' add-ons.
Fly nonstop from Seattle to London for the fastest, most convenient way to bridge the Atlantic — fewer hassles, no layovers, and more time to enjoy your trip. While connecting flights can sometimes be cheaper, a direct flight saves hours and offers a more comfortable, stress-free journey to the UK.
The cheapest one-way flight from Seattle to London departs on 10/27/2025, is operated by Scandinavian Airlines and costs $244
The cheapest roundtrip flight from Seattle to London departs on 11/05/2025, is operated by Icelandair and costs $404
Fastest flight from Seattle to London takes 13h 40m
There are no direct flights on this route.
The distance between Seattle and London is 7706km (4778 miles). There are 129 direct flights from Seattle to London. The time difference between Seattle and London is 8h. Flights from Seattle begin at 1:30 PM. The latest flight from Seattle departs at 8:25 PM
Seattle is served primarily by Seattle–Tacoma International Airport (SEA), a major Pacific Northwest gateway that typically functions as the region’s main international and domestic hub and handles many full-service carriers alongside budget airlines. Located about 14 miles (roughly 20–40 minutes) south of downtown, SEA is usually reachable by Link light rail, airport shuttle, taxis or rideshares and rental cars; transit fares and shuttle costs can generally be modest while taxis/rideshares vary by traffic. A second option for some travelers is smaller Boeing Field (BFI) for charters and general aviation. SEA’s strengths are its wide route network and amenities; trade-offs can include busy terminals and variable security/traffic waits during peak periods.
Seattle — London
11/04/2025
Departure
Direct flight
BA52
Starting at $413
Seattle — London
12/06/2025
Departure
Direct flight
BA52
Starting at $470
Seattle — London
02/02/2026
Departure
Direct flight
BA48
Starting at $444
Seattle — London
10/28/2025
Departure
Direct flight
VS106
Starting at $372
Seattle — London
11/02/2025
Departure
Direct flight
BA48
Starting at $2,008
Seattle — London
11/09/2025
Departure
Direct flight
BA48
Starting at $542
Starting at $413
Starting at $372
Starting at $244
Starting at $251
Starting at $253
Starting at $293
Starting at $342
More than 7 airlines operate flights from Seattle to London, including British Airways, Virgin Atlantic, Scandinavian Airlines, Westjet, Frontier Airlines, Alaska Airlines, and United Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $244, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
We couldn't find any special offers for flights from Seattle to London
The cheapest flight ticket from Seattle to London according to data for the last 48 hours costs $244
Often the best time to buy tickets from Seattle to London is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to London can be found flying in these months: October.
The fastest flights from Seattle to London start from 13 hours 40 minutes in the air.
The following airlines operate direct flights on the route Seattle — London: British Airways, Virgin Atlantic
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Seattle to London