Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.

Cheap Flight Deals From London (LON) to Seattle (SEA) Starting at $421

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This Weekend's Flight Deals from London to Seattle

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Airfares from $421 One Way, $528 Round Trip from London to Seattle

Prices starting at $528 for return flights and $421 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

More About Flying To Seattle from London

Route Information for Flights from London to Seattle

Origin Airport IATA Code LON
Destination Airport IATA Code SEA
Distance 4786 mi
Direct Flight Airlines American Airlines, Alaska Airlines, Aer Lingus, Finnair, Iberia, British Airways
Earliest Flight Arrival 7:10PM UTC
Latest Flight Arrival 11:15PM UTC

Fly from London to Seattle

London Heathrow Airport

London Heathrow Airport is the main airport that serves those traveling in and out of the city. You can book low-cost flights from London to any city in the world through Orbitz.com. London Heathrow Airport is the busiest airport in the United Kingdom. It is located west of central London and offers direct and connecting flights to locations throughout the world. The major airlines that service Heathrow Airport include Air Canada, Air France, Air China, American Airlines, Australian Airlines and British Airways. You can book flights on these, and many other airlines that fly out of this airport, on Orbitz.com.

Parking at Heathrow Airport

London Heathrow Airport has long-term and short-term parking lots. Long-term parking is available at Terminal 1, Terminal 3 and Terminal 4 and costs £17.90 per day. Short-term parking is available at every terminal and is free for the first 15 minutes. You are then charged £2.80 per hour. Each parking lot has shuttle services that travelers can use to get to the airport's main entrance.

London Ground Transportation

London has public busses, trams, a light rail service and a heavy rail service. London's transport system serves every area of the city and provides services directly to London Heathrow Airport. There are complimentary shuttle services available that take travelers from bus and rail stops close to the airport right to the ticket gates. There are also taxi services available to travelers as well. If you are flying into London and need transportation, book a rental car in advance on Orbitz.com.

Airport Dining Facilities

There are many places to dine in London Heathrow Airport, including Coffee Republic, The Bridge Bar, The Skylark and Bagel Street. Krispy Kreme, TGI Friday's and Starbucks are also located in the dining area. Always use Orbitz.com to find great sales on flights from London, and arrive to the airport early enough to grab a snack and relax before your trip.

Seattle Airport Information

On your next trip to the Pacific Northwest, use Orbitz to find low-cost domestic and international flights to Seattle. The primary airport is the Seattle-Tacoma International Airport, more commonly known as Sea-Tac, located roughly 15 miles south of downtown Seattle. The Boeing Field-King County International Airport is less than 10 miles south of the city, but flights into this airport are generally more limited and a bit more expensive.

Ground Transportation in Seattle

You will have several public transportation options once you land in Seattle, including Link Light Rail and King County Metro Transit. There are also public taxis, share-a-ride shuttles and private car services ready to bring you to your final destination. Expect to pay a fare of between $35 and $45 from Sea-Tac into downtown Seattle, and roughly half of that from the Boeing Field airport. Use Orbitz.com to plan your trip, and you will be able to either rent a car or choose a hotel that has free shuttle service to and from the airport.

Seattle Weather Information

Seattle has a mild climate, with winter temperatures usually ranging from the mid-30s to the mid-40s and summer temperatures that rarely go above the mid-70s. November and December usually have a fair amount of rainfall, but the rest of the year is fairly dry. Because cool nights occur year round, plan a wardrobe that you can layer to accommodate the fluctuating temperatures.

What to Do in Seattle

Visitors to Seattle have no shortage of things to see and do. Some of the most famous landmarks include the Space Needle, the site of the original Starbucks in Pike Place Market and Bill Gates' house on Lake Washington. There are also plenty of parks, museums, theaters, shops and restaurants in and around the city. Enjoy your stay, and the next time you need discount flights to Seattle, be sure to use Orbitz.com.

Flights from London to Seattle - Frequently Asked Questions

Am I able to catch a flight from London to Seattle now?

If you're agonizing over travel restrictions and quarantine requirements when catching a flight from London to Seattle, check out our Covid-19 Travel Advisor.

Are there non-stop flights from London to Seattle?

There definitely are, so you'll only need to make a note of one flight number. Pick from 4 airlines that advertise nonstop services from London Airport (LHR-Heathrow) to SEA, including:

  • Virgin Atlantic
  • British Airways
  • American Airlines
  • Delta
What is the shortest flight from London to Seattle?

Taking at least 9 hours and 40 minutes, the trip from London to Seattle is classed as a long-haul flight. Try to get some sleep on the plane to help keep jet lag at bay.

What airlines fly from London to Seattle most frequently?

These are the carriers that have the most frequent flights from LHR to Seattle - Tacoma Intl. Airport (SEA). Reserve a seat with one of the following and see why they are traveler favorites: Virgin Atlantic - (VS) with 30 flights every month British Airways - (BA) with 30 flights every month American Airlines - (AA) with 26 flights every month Delta - (DL) with 17 flights every month

If I am not able to travel due to COVID-19, can I cancel my flight to Seattle?

We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Seattle have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

Are there flights to Seattle with flexible change policies?

In most cases you'll have the option to reschedule your flight to Seattle without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

What is the cheapest day of the week to fly?

Consider flying out early in the week to save on your airfare. Orbitz data from 2020 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.

What is the cheapest month to fly?

We won't keep you guessing, according to Orbitz data the cheapest month to fly is August. Perfect for those who need a weekend getaway, or just a break from it all before the weather changes. Be aware that the most expensive time to fly is the height of summer, with ticket prices peaking in the month of June.

How can I save money on flights?

To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2020 saved up to 45% on their airfares. Get mixing and matching today!

*According to flight demand on Orbitz.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.