Flight from Seattle (SEA) to London (LON) from $578
Flight Information
Cheapest flight from $578 
Departure and arrival airport SEA-LON
Travel comfortably from Seattle to London
Discover our menu and enjoy a comfortable flight from the start of your journey from Seattle to landing in London. Whether you are planning a business trip or a family holiday, brusselsairlines.com offers the best choice and always attractive prices.
Fly to London with a calm mind, rested and ready for a great stay thanks to even more comfortable economy class seats.
Some of our aircrafts have been dedicated to Belgian icons. Discover Rackham, Airbus A320, with its Tintin theme, Trident - dedicated to our national footballers, Amare dedicated to the Tomorrowland festival, Aerosmurf dedicated to the children's idols - the Smurfs, and Bruegel which commemorates one of the most talented artists of the 16th century - Pieter Bruegel the Elder.
Discover competitive prices and travel from Seattle to London from $578.
Please note: To provide you with the widest possible selection of flight destinations, some of the direct flights or connecting flights on brusselsairlines.com are operated by our partner airlines, which may result in a different flight experience than with Brussels Airlines.
Important information for your trip
Current weather in London
Mostly cloudy
Today
15 Jul.
57.2 / 69.8 °F
Tomorrow
16 Jul.
60.8 / 75.2 °F
Thursday
17 Jul.
60.8 / 77 °F
Friday
18 Jul.
64.4 / 77 °F
Saturday
19 Jul.
64.4 / 77 °F
Sunday
20 Jul.
64.4 / 75.2 °F
Monday
21 Jul.
60.8 / 71.6 °F
Tuesday
22 Jul.
60.8 / 73.4 °F
Discover our destinations
FAQ
We offer an easy form for your online check-in. After you have received your booking confirmation, you can fill it out here.
On our flights within Europe, you can purchase a large selection of snacks, sandwiches and drinks on board. On longer trips to North America, Central or South Africa, you will enjoy a fully balanced meal on bord.
In general, you can bring hand bagage in the dimensions of 55cm x 40cm x 23cm and a maximal weight of 8kg. Flying with economy travel classes, even two pieces of hand bagage are allowed. You can find further information in our hand bagage rules here.
No, during flight, you can only use your mobile devices and tablets in flight mode.
On the route Seattle to London, United Kingdom we offer flights from $578.
Departing from USA to London we offer the destination airport(s) New York, Chicago, San Francisco, Houston, Washington, Denver, Los Angeles.
In the event that your flight is cancelled, we will promptly reschedule all affected passengers. The revised flight information can be found under "My bookings". Our Brussels Chat Assistant Charlie is available 24/7 to assist you.
Free baggage allowance means the luggage that is already included in your ticket price so you don't have to pay more to bring it. The specifics, like size, weight, and quantity, are determined by your fare type, the flight route, and your frequent flyer status.
Our Premium Economy Class provides extra comfort, tailored for longer flights. Take advantage of features like a roomier seat with a bigger recline angle, making your flight more enjoyable.
