Unable to find information about the schedule of direct flights from
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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.
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
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Seattle to London:
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Unable to find information about the schedule of direct flights from
The cheapest one-way flight from Seattle to London departs on 01/09/2026, is operated by Frontier Airlines and costs $372
The cheapest roundtrip flight from Seattle to London departs on 01/20/2026, is operated by Icelandair and costs $514
Fastest flight from Seattle to London takes 2d 0h 14m
There are no direct flights on this route.
The distance between Seattle and London is 7706km (4778 miles). There are 52 direct flights from Seattle to London. The time difference between Seattle and London is 8h. Flights from Seattle begin at 2:25 PM. The latest flight from Seattle departs at 11:15 PM
We couldn't find any special offers for flights from Seattle to London
Seattle — London
01/09/2026
Departure
Direct flight
BA5450
starting at $694
starting at $694
starting at $372
Flights from Seattle to London are operated by several airlines — British Airways and Frontier Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $372, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
The cheapest flight ticket from Seattle to London according to data for the last 48 hours costs $372
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: February.
The fastest flights from Seattle to London start from 14 minutes in the air.
The following airlines operate direct flights on the route Seattle — London: British Airways
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.
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.
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.