AED 2,016 Cheap flights from Seattle / Tacoma International to London

Compare Seattle / Tacoma International to London flight deals

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Flight deals from Seattle / Tacoma International to London

Looking for a cheap last-minute deal or the best round-trip flight from Seattle / Tacoma International Airport to London? If you want to travel next month, round-trip fares start from AED 2,652. Find the lowest prices on one-way and round-trip tickets right here.

London.AED 700 per passenger.Departing Tue, Feb 2.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Feb 2, arriving in London Heathrow.Price includes taxes and charges.From AED 700, select.

London.AED 702 per passenger.Departing Tue, Jan 26.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Jan 26, arriving in London Heathrow.Price includes taxes and charges.From AED 702, select.

London.AED 702 per passenger.Departing Tue, Nov 3.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Tue, Nov 3, arriving in London Heathrow.Price includes taxes and charges.From AED 702, select.

London.AED 802 per passenger.Departing Sun, Sep 20.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Sun, Sep 20, arriving in London Heathrow.Price includes taxes and charges.From AED 802, select.

London.AED 805 per passenger.Departing Tue, Jul 21.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Tue, Jul 21, arriving in London Heathrow.Price includes taxes and charges.From AED 805, select.

London.AED 865 per passenger.Departing Sat, Oct 17.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Sat, Oct 17, arriving in London Stansted.Price includes taxes and charges.From AED 865, select.

London.AED 942 per passenger.Departing Fri, Dec 11.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Fri, Dec 11, arriving in London Stansted.Price includes taxes and charges.From AED 942, select.

London.AED 993 per passenger.Departing Fri, Aug 28.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Fri, Aug 28, arriving in London Gatwick.Price includes taxes and charges.From AED 993, select.

London.AED 1,039 per passenger.Departing Sun, Apr 25.One-way flight with Air France.Outbound indirect flight with Air France, departing from Seattle / Tacoma International on Sun, Apr 25, arriving in London Stansted.Price includes taxes and charges.From AED 1,039, select.

London.AED 1,051 per passenger.Departing Sun, Mar 7.One-way flight with Air France.Outbound indirect flight with Air France, departing from Seattle / Tacoma International on Sun, Mar 7, arriving in London Stansted.Price includes taxes and charges.From AED 1,051, select.

London.AED 1,097 per passenger.Departing Wed, May 5.One-way flight with Air France.Outbound indirect flight with Air France, departing from Seattle / Tacoma International on Wed, May 5, arriving in London Stansted.Price includes taxes and charges.From AED 1,097, select.

London.AED 1,161 per passenger.Departing Sun, Sep 20.One-way flight with Virgin Atlantic.Outbound direct flight with Virgin Atlantic departing from Seattle / Tacoma International on Sun, Sep 20, arriving in London Heathrow.Price includes taxes and charges.From AED 1,161, select.

London.AED 1,170 per passenger.Departing Sat, Jun 6.One-way flight with KLM.Outbound indirect flight with KLM, departing from Seattle / Tacoma International on Sat, Jun 6, arriving in London Stansted.Price includes taxes and charges.From AED 1,170, select.

London.AED 1,180 per passenger.Departing Mon, Oct 19.One-way flight with Air France.Outbound direct flight with Air France departing from Seattle / Tacoma International on Mon, Oct 19, arriving in London Heathrow.Price includes taxes and charges.From AED 1,180, select.

London.AED 1,180 per passenger.Departing Mon, Apr 12.One-way flight with Air France.Outbound direct flight with Air France departing from Seattle / Tacoma International on Mon, Apr 12, arriving in London Heathrow.Price includes taxes and charges.From AED 1,180, select.

London.AED 1,180 per passenger.Departing Wed, Jan 27.One-way flight with Air France.Outbound direct flight with Air France departing from Seattle / Tacoma International on Wed, Jan 27, arriving in London Heathrow.Price includes taxes and charges.From AED 1,180, select.

Find the cheapest month to fly from Seattle / Tacoma International to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to London flights are currently cheapest in February.

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Direct flights from Seattle / Tacoma International to London

Alternative Seattle / Tacoma International to London routes

Looking for the cheapest, fastest or easiest route from Seattle / Tacoma International to London? You could fly into the following airports instead.

Seattle to London: Flight information

The things to know before you go.

Cheapest flight found	AED 700
Cheapest month to fly	February
Average flight time	9 hrs, 36 mins
Most popular airline	Alaska Airlines
Average flights per week	154

Finding cheap flights from Seattle / Tacoma International to London: Frequently asked questions

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are round-trip flights from Seattle / Tacoma International to London?

The best price we found for a round-trip flight from Seattle / Tacoma International to London is AED 2,016. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle / Tacoma International to London?

9 hours and 36 minutes is the average flight time from Seattle / Tacoma International to London.

Which airlines fly direct from Seattle / Tacoma International to London?

Alaska Airlines, Air France and Delta fly direct from Seattle / Tacoma International to London.

How many flights are there a week from Seattle / Tacoma International to London?

There are 154 flights per week flying from Seattle / Tacoma International to London, as of June 2026.

When is the cheapest time to fly from Seattle / Tacoma International to London?

The cheapest month to fly from Seattle / Tacoma International to London is usually October.

What's the cheapest airport to fly to in London?

If you're flying from Seattle / Tacoma International Airport, the cheapest airport near London is London Heathrow – which is 22.9 km away from the center of London. We've found flights to this airport from AED 2,016.

Which upcoming date is cheapest to fly from Seattle / Tacoma International Airport to London on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to London on Saturday, October 10, 2026.

Can I get a direct flight from Seattle / Tacoma International Airport to London?

Yes – the average flight time is 9 hours and 36 minutes.

How can I get the best flight deal from Seattle / Tacoma International Airport to London?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in London?

In June, the average temperature is usually around 15°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.

Which is the cheapest airline to fly with from Seattle / Tacoma International Airport to London?

Currently, Icelandair and Iberia offer the cheapest flight tickets to London.

Flying from Seattle-Tacoma International Airport (SEA) to London: what you need to know

Expect to be traveling for 10 hours 5 minutes. That's the average duration of a direct flight from Seattle-Tacoma International Airport to London.
Seattle-Tacoma International Airport is located in Seattle. Following the UTC+0 timezone, London is eight hours ahead of Seattle.
The busiest route is from Seattle-Tacoma International Airport (SEA) to London Heathrow Airport (LHR). You can select from 25 services every week between these two airports. If you want to take off as soon as possible, the earliest flight from SEA to LHR is the 13:30 British Airways option. If you'd rather fly out later on, the final departure is at 20:25 with Delta Air Lines.
For a relaxed start to your SEA to London flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours before international departures and one hour before domestic flights is the general travel rule.
Flying during a peak time such as July? School holidays and other popular seasons can mean longer queues and delays at check-in and security. Play it safe and arrive up to four hours before an international flight and two hours before a domestic departure.
You can book a direct Seattle-Tacoma International Airport to London ticket. Begin your journey at SEA and land at London Heathrow Airport (LHR).
Well-known carriers that offer direct flights from Seattle-Tacoma International Airport to London include:
Stopovers are the perfect opportunity to break up your trip and maybe even explore another city. When browsing for plane tickets from SEA to London, deselect the 'Direct flights only' box to see where you can visit along the way. Some popular options include:
- Amsterdam Schiphol Airport (AMS)
- Frankfurt Airport (FRA)
- Paris Charles de Gaulle Airport (CDG)
Traveling from central Seattle to SEA takes about 35 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 18 kilometers in 25 minutes or so, depending on traffic conditions.
Want a stress-free start to your travels? Stay near SEA. Whether you've booked an early flight from Seattle-Tacoma International Airport to London or don't want departure day to feel hectic, these hotels are just the thing:
Seattle-Tacoma International Airport has an excellent on-time performance, reducing the likelihood of delays. Departures from SEA touch down on schedule 80% of the time.

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to London

The best price we've seen for a one-way Seattle-Tacoma International Airport to London flight is AED 700. The cheapest price for a return flight is AED 2,016. Bear in mind fares can change due to demand at the time of booking.
Book six months before flying. Pricing trends suggest that this is the ideal window for finding cheap flights from SEA to London.
Plan your trip for November. That's the best month for scoring an epic deal on Seattle-Tacoma International Airport to London tickets. If you have flexibility with your dates, use the 'Whole month' tool to access the cheapest price across each month.
Picking up a cheap flight from SEA to London is easy with Price Alerts. All you need to do is create one of these automatic notifications and we'll get in touch as soon as a new discount appears.
Pick your preferred departure and arrival times, number of stops and airlines with our filters. Then, sort the results for your flight from Seattle-Tacoma International Airport to London by 'Fastest,' 'Best' or 'Cheapest.'

Airports in London

London Heathrow Airport (LHR)

London Heathrow Airport (LHR) to central London takes around 45 minutes by car. The center is roughly 24 kilometers away.
When traveling on public transport, expect a journey time of around 25 minutes.
Think about booking a hotel near LHR if you have a late flight from Seattle-Tacoma International Airport to London. Select one of these options and make your first night all about catching up on rest:
Secure the lowest price by reserving your ride from London Heathrow Airport about one week ahead of your flight from SEA to London.

London Gatwick Airport (LGW)

The center of London is located around 48 kilometers from London Gatwick Airport (LGW). Once your flight from Seattle-Tacoma International Airport to London has touched down and you've made your way through the terminal, the drive should be around 1 hour 5 minutes.
You can expect the journey to take about 1 hour 20 minutes on public transport.
After stepping off your SEA to London flight, rest your head at a hotel close to LGW. These are some great accommodation options that'll help you slip into relaxation mode:
Avoid paying more than you need to. Reserving your ride three weeks before your arrival at LGW will save you money.

London Stansted Airport (STN)

Hop off your flight from Seattle-Tacoma International Airport to London and go straight to your hotel or start discovering the city right away. The center of London is around 56 kilometers from London Stansted Airport (STN) and typically takes 1 hour 5 minutes to drive there.
The journey takes about 45 minutes on public transport.
Enjoy a more relaxed start to your trip by choosing a hotel near STN after your SEA to London flight. Recover from a day of travel or just give yourself time to get your footing in a new city at:
Around four weeks ahead of your flight from Seattle-Tacoma International Airport to London is the ideal time to book your vehicle from STN. You're more likely to lock in a better rate or even snap up an early bird discount.

Best time to go to London

It's time to plan your travel dates for your flight from Seattle-Tacoma International Airport to London. July is the most popular month for a trip to London. If you want a more peaceful vibe, go in January.
The warmest month in London is July, with temperatures ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your Seattle-Tacoma International Airport to London plane ticket then if you enjoy this type of weather.
If you'd rather travel in cooler conditions, search for a cheap ticket from SEA to London in January when temperatures average between 0ºC (32ºF) and 9ºC (48ºF).

More about London

Start your London trip off on the right foot by choosing the ideal place to stay. After booking your flight from Seattle-Tacoma International Airport to London, browse our selection of accommodation options including:
Every great vacation has to include a little sightseeing. Westminster Abbey, The British Museum and Big Ben are must-visits when exploring London.

Explore more of the United Kingdom

Manchester is just one of the many places in the United Kingdom waiting to be explored after you've experienced London. Around 257 kilometers away to the northwest, its best attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
If you want to check out another well-known destination in the United Kingdom, head for Birmingham, about 161 kilometers northwest of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are among its highlights.