SEA - LON

$375 Find Cheap Flights from Seattle to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to London departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$542
Overall average: $728
Icelandair
Fri 4/24Mon 5/4
SEA - LHR • 1 stop
Cheapest non-stop
$585
Typical prices: $640-$834
Virgin Atlantic
Mon 3/16Wed 4/1
SEA - LHR • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
British Airways' Premium Economy offers extra legroom.
Bring a sack lunch as airport food is expensive.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Icelandair
Cheapest • from $542 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
SEA
-
LHR
Cheapest
SEA
-
LHR
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 14% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to London (SEA-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to London

Fri, Apr 24 - Mon, May 4
Icelandair Logo
7:00 pm - 8:20 pm
SEA
-
LHR
17h 20m
1 stop
Icelandair Logo
9:25 pm - 5:55 pm
LHR
-
SEA
28h 30m
1 stop
$542Icelandair
Mon, Apr 13 - Sat, Apr 25
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$543Icelandair
Mon, Apr 13 - Tue, Apr 21
Icelandair Logo
3:40 pm - 11:55 am
SEA
-
LHR
12h 15m
1 stop
Icelandair Logo
1:05 pm - 8:40 pm
LHR
-
SEA
15h 35m
1 stop
$543Icelandair
Mon, Apr 13 - Sat, Apr 25
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$544Icelandair
Sun, Apr 19 - Thu, Apr 30
Icelandair Logo
3:40 pm - 11:55 am
SEA
-
LHR
12h 15m
1 stop
Icelandair Logo
1:05 pm - 5:55 pm
LHR
-
SEA
12h 50m
1 stop
$544Icelandair
Sun, Mar 1 - Thu, Mar 12
Air Canada Logo
3:40 pm - 11:50 am
SEA
-
LHR
12h 10m
1 stop
Air Canada Logo
2:30 pm - 10:57 pm
LHR
-
SEA
15h 27m
1 stop
$548Air Canada
Tue, Mar 10 - Tue, Mar 17
Virgin Atlantic Logo
4:05 pm - 5:20 pm
SEA
-
LCY
18h 15m
1 stop
Virgin Atlantic Logo
5:50 pm - 12:35 pm
LCY
-
SEA
25h 45m
1 stop
$654Virgin Atlantic
Tue, Mar 10 - Tue, Mar 17
Virgin Atlantic Logo
4:05 pm - 5:20 pm
SEA
-
LCY
18h 15m
1 stop
Virgin Atlantic Logo
8:40 am - 10:22 pm
LCY
-
SEA
20h 42m
2 stops
$665Virgin Atlantic
Wed, Mar 25 - Fri, Apr 3
Delta Logo
4:05 pm - 4:35 pm
SEA
-
LCY
17h 30m
1 stop
Delta Logo
10:20 am - 4:30 pm
LCY
-
SEA
14h 10m
1 stop
$669Delta
Mon, Mar 30 - Wed, Apr 8
Lufthansa Logo
2:10 pm - 5:55 pm
SEA
-
LCY
19h 45m
1 stop
Lufthansa Logo
9:15 am - 4:59 pm
LCY
-
SEA
15h 44m
2 stops
$688Lufthansa
Booking Insights

KAYAK's insights & trends for Seattle to London flights

Get data-powered insights and trends into flights from Seattle to London to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to London departing in April.

What is the cheapest Seattle to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Seattle to London costs $492 on the route between Seattle (SEA) and London Heathrow Airport (LHR). It is also the most popular route.

What’s the cheapest day of the week to fly from Seattle to London?

The average price of all round-trip flights from Seattle to London clicked on KAYAK for each day over the last 12 months.

For Seattle to London, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from London back to Seattle, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from Seattle to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to London is January, where tickets cost $641 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $986 and $968 respectively.

Can I save money by flying with a layover from Seattle to London?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $711 on average.

How far in advance should I book a flight from Seattle to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to London, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

KAYAK's tips to save more on a Seattle to London flight

When planning a trip from Seattle to London, there are several factors to consider to ensure you're getting the best deal. Generally, Tuesday is the cheapest day of the week to fly, while November is the cheapest month.

Booking Advance: Book your flight at least a week in advance to get the best prices.

Cheapest Route: The cheapest route is typically from Seattle to London Heathrow.

Airline Choice: Consider flying with Icelandair or WestJet, as they generally offer the cheapest fares.

Direct or Layover: Flights with one stop are usually cheaper than direct flights.

AI-powered; AI can make mistakes.

Good to know

Low seasonJanuary
Cheapest flight$375
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Seattle to London Stansted Airport

When to book flights from Seattle to London

Are your dates flexible? Find out the best times to travel from Seattle to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Seattle to London: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seattle to London 
Verified travelerFlew with British Airways
SEA
-
LHR
Apr 2025
Make sure you have plenty of time between flights if you are delayed.
Verified travelerFlew with British Airways
SEA
-
LHR
Feb 2025
Don’t take a flight if you sick, or if you have no choice prepare to stay covered with mask throughout the flight
Verified travelerFlew with British Airways
SEA
-
LHR
Apr 2024
Bring a sack lunch -- airport food was very expensive.

FAQs for booking flights from Seattle to London

  • Are there onsite hotels at Heathrow Airport or Gatwick Airport?

    Heathrow Airport features a number of hotels connected directly to its terminals, so visitors have a selection of airports to choose from. In Terminal 4 travelers will find the Hilton London Heathrow Airport and the capsule hotel YOTEL, while in Terminal 5 there is the Sofitel London Heathrow. Gatwick airport also has a variety of hotel options available, such as Hampton by Hilton, YOTELAIR, and Bloc Hotel.

  • Can I fly from Seattle to London non-stop?

    British Airways, Iberia, Virgin Atlantic, Finnair, and Delta Air Lines all offer direct nonstop flights from Seattle to London via Heathrow Airport. Many other airlines also offer one-stop flights to London from Seattle with final destinations varying largely between Heathrow Airport, Gatwick Airport, and London City Airport.

  • What is the quickest way from Heathrow Airport to downtown London?

    The Heathrow Express is the fastest way to get to central London from Heathrow Airport and is conveniently connected to Terminals 2, 3, and 5. There is also a direct London Underground connection via the Piccadilly Line, for those who prefer the cheaper (but slower) method of travel.

  • Should I fly to Heathrow Airport or Gatwick Airport?

    Both airports are conveniently connected via public transport to central London with travel times roughly equal. However, if your final destination is on the south or east side of London, then Gatwick is likely the better option due to its close proximity, while Heathrow is more convenient for destinations on the west and north side.

  • Which is the best arrival airport if I want to visit Buckingham Palace?

    Both London Heathrow Airport (LHR) and Gatwick Airport (LGW) provide direct train and subway links to the Buckingham Palace. LHR sits around 1h away on the Piccadilly subway line, while LGW is approximately 45min away on the Southern train line or Gatwick Express.

  • Where can I store my extra luggage at London Heathrow Airport (LHR)?

    Every terminal at the London Heathrow Airport (LHR) features luggage storage lockers. Those using Terminal 1 should locate the lockers on the lower level on the International Arrivals foyer. Storage duration ranges from 3h to a maximum of 90 days.

  • Are there car rentals at Gatwick Airport (LGW)?

    Numerous car rental agencies provide services at the Gatwick Airport (LGW), with most of their pick-up garages situated at the North and South Terminals of LGW. It’s prudent to make early reservations if you want to get affordable rates.

  • Are there any accessibility services available for travelers at LHR upon their arrival?

    London Heathrow Airport (LHR) has essential amenities like flight vending machines, information screens, and seating in every host area. Those arriving via Terminal 3 will find the host areas post-security, near World Duty Free, after the toilets. Still, the arrival terminal has wheelchair-accessible restrooms, located inside the men's and women's toilets. Dedicated agents are there to guide you through the security clearance.

  • What is the cheapest flight from Seattle to London?

    In the last 3 days, the lowest price for a flight from Seattle to London was $375 for a one-way ticket and $542 for a round-trip.

  • Do I need a passport to fly between Seattle and London?

    Yes, you’ll need a passport to travel to London from Seattle.

  • Which airports will I be using when flying from Seattle to London?

    On your way to London, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing in one of London’s 6 airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to London?

    All the following airlines offer inflight Wi-Fi service on the Seattle to London flight route: Air France, Delta, Virgin Atlantic, KLM, Scandinavian Airlines, and American Airlines.

  • Which aircraft models fly most regularly from Seattle to London?

    The Boeing 787-10 Dreamliner is the aircraft model that flies most regularly on the Seattle to London flight route.

  • Which airline alliances offer flights from Seattle to London?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Seattle and London, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seattle to London?

    There are nonstop flights from Seattle to London on a daily basis.

  • Which is the best airline for flights from Seattle to London, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Seattle to London are Delta and KLM. With an average price for the route of $804 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $806 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Seattle to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $377 or less one-way and $650 or less round-trip.
  • Link Light Rail and bus services connect Seattle-Tacoma International Airport to downtown Seattle quickly and efficiently. The Link is just outside the airport on the fourth floor of the adjacent parking garage and runs all the way from the airport to the University of Washington.
  • Families flying with children may want to consider visiting Seattle-Tacoma International Airport’s Playroom. It is the perfect spot to help kids burn off excess energy before their flight. The Playroom is located across from the Seattle Tap Room in the Central Terminal near the A gates.
  • There are many airports in London and travelers should keep their locations in mind when choosing which airport to fly into. London City Airport and Heathrow Airport are the most central of the airports and offer quick, easy access to the heart of London, while Gatwick Airport and London Stansted Airport are on the southside and northside of London, respectively.
  • Looking for a family-friendly activity to help pass the time prior to your flight? Why not check out a live music performance? All throughout the week, live music gigs are performed in Sea-Tac Airport’s various terminals to the enjoyment of passengers.
  • Travelers with flights from Seattle to London via Delta Air Lines may want to consider taking the chance to relax in comfort in one of Delta’s premium lounges. Delta operates two Delta Sky Clubs at Seattle-Tacoma International Airport, with one in Concourse A and the other in the airport’s Rooftop Area. There are also showers available at the Rooftop location.
  • Fly aboard British Airways from Seattle to London and experience its hub at the London Heathrow Airport (LHR). After arrival, you can get access to BA Lounge located in The Concorde Room, Terminal 5. Access to this lounge is restricted to members of the airline's Executive Club or the Oneworld Alliance. If you fly this airline, you’ll enjoy priority clearance at the terminal and security checkpoint as part of the fast lane program.
  • There are two lounges at Seattle-Tacoma International Airport (SEA) situated at Concourse A and South Satellite. Typically, the lounges open 3h before the scheduled flight departs. Children can only access the lounges if accompanied by adults, while infants under 2 years are admitted for free. Still, If you’re flying Economy Class, you can access the lounges at a reduced cost.
  • Travelers with kids through Seattle-Tacoma International Airport (SEA) have their needs catered to. The airport features suites where moms can enjoy privacy while pumping or breastfeeding. You can locate these rooms in Concourse N on the Mezzanine level, or Concourse D on the lower level of D Annex. Other amenities include sinks, chairs and power sockets.
  • Those with early morning departures through Seattle-Tacoma International Airport (SEA) should consider booking a room at one of the many hotels adjacent to the airport. Usually, most of these properties provide complimentary shuttles to and from the airport. Holiday Inn Express Hotel & Suites Seatac, An Ihg Hotel is one such hotel.
  • American Airlines allows you to bring pets such as cats and dogs when flying from Seattle to London. Depending on their sizes, they can travel as a carry-on or be transported through American Airlines Cargo. However, they must bear valid health and vaccination certificates, and you must lock them in their kennels.

Prefer to fly direct from Seattle to London?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to London.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to London, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to London

Monday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Tuesday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Wednesday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Thursday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Friday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Saturday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Sunday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

See more direct flights

Direct returns

London to Seattle/Tacoma Intl

Monday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Tuesday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Wednesday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Thursday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Friday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Saturday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

Sunday

British Airways, Delta, Virgin Atlantic

British Airways, Delta, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Seattle to London

 
See real verified KAYAK customer reviews for airlines flying from Seattle to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8196 reviews
7.2Food
8.1Boarding
8.5Crew
7.9Comfort
7.8Entertainment
Airline reviews

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

10.0 ExcellentSharon, Feb 2026
TPA - ATL
Read more Delta reviews

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

bulkhead seat had very little legroom - even in bsiness class.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

It was too cold in the plane my feet froze

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

Everything you need to know for your flight from Seattle to London

Other airlines flying from Seattle to London

Flights from the other most popular airlines that fly from Seattle to London according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.