SEA

Find Business Class Flights from London to Seattle

1 adult
1 adult, Business, 0 bags

KAYAK searches hundreds of travel sites at once for Business Class flights from London to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Seattle.
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Cheap Business Class Flight Deals from London to Seattle

 
These are the cheapest deals for flights from London to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 business class return flight deals to Seattle

Tue, 7 Jul - Tue, 14 Jul
Icelandair Logo
21:25 - 10:42
LHR
-
SEA
45h 17m
2 stops
Icelandair Logo
23:25 - 20:20
SEA
-
LHR
12h 55m
1 stop
£1,523Icelandair
Tue, 7 Jul - Tue, 14 Jul
Icelandair Logo
15:40 - 10:42
LGW
-
SEA
51h 02m
2 stops
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£1,524Icelandair
Tue, 7 Jul - Tue, 14 Jul
Icelandair Logo
13:00 - 11:45
LGW
-
SEA
30h 45m
1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£1,604Icelandair
Tue, 30 Jun - Tue, 7 Jul
Turkish Airlines Logo
17:35 - 17:20
STN
-
SEA
31h 45m
1 stop
Turkish Airlines Logo
19:15 - 16:40
SEA
-
STN
37h 25m
1 stop
£2,615Turkish Airlines
Mon, 10 Aug - Mon, 24 Aug
Turkish Airlines Logo
10:50 - 17:20
STN
-
SEA
38h 30m
1 stop
Turkish Airlines Logo
12:35 - 22:10
SEA
-
STN
25h 35m
1 stop
£2,654Turkish Airlines
Thu, 25 Jun - Mon, 29 Jun
KLM Logo
19:00 - 16:24
LCY
-
SEA
29h 24m
1 stop
KLM Logo
17:45 - 16:40
SEA
-
LCY
14h 55m
1 stop
£2,952KLM
Thu, 25 Jun - Sun, 28 Jun
KLM Logo
19:00 - 16:24
LCY
-
SEA
29h 24m
1 stop
KLM Logo
09:30 - 08:50
SEA
-
LCY
15h 20m
2 stops
£3,230KLM
Thu, 25 Jun - Sun, 28 Jun
Virgin Atlantic Logo
20:15 - 16:24
LCY
-
SEA
28h 09m
1 stop
Virgin Atlantic Logo
17:45 - 16:40
SEA
-
LCY
14h 55m
1 stop
£3,284Virgin Atlantic
Sat, 27 Jun - Sat, 4 Jul
Virgin Atlantic Logo
12:10 - 20:57
LCY
-
SEA
16h 47m
2 stops
Virgin Atlantic Logo
11:40 - 17:20
SEA
-
LCY
21h 40m
2 stops
£3,422Virgin Atlantic
Tue, 8 Sep - Tue, 22 Sep
Multiple Airlines Logo
06:45 - 20:02
LCY
-
SEA
21h 17m
2 stops
Multiple Airlines Logo
06:18 - 08:35
SEA
-
LCY
18h 17m
2 stops
£3,452Multiple Airlines

Good to Know - Business Class Flights from London to Seattle

Low seasonJanuary
Average price round-trip£2,666
Good deal one-way£1,526
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (5% more expensive on average)
(avg. price over the last 2 weeks)
or less

When to book business class flights to Seattle

Are your dates flexible? We break down the daily and monthly prices for business class flights to Seattle, so you can find the best time to fly.
Average price per month
Flight prices as travel date approaches

KAYAK’s Insights & Trends for London to Seattle Business Class Flights

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

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

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

Look for departures on Monday when prices are cheapest and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Seattle, Thursday is the cheapest day to fly and Saturday is the most expensive.

When is the cheapest month to fly Business Class from London to Seattle?

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

The cheapest month for Business Class flights from London to Seattle is April, when tickets cost £1,861 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of return tickets is £5,926 and £3,614, respectively.

Which airlines offer Business Class tickets between London and Seattle?

There are 8 airlines that fly Business Class from London to Seattle. They are: Icelandair, Air France, KLM, British Airways, Virgin Atlantic, Aer Lingus, Finnair and Iberia. The cheapest price of all airlines flying this route was found with Icelandair at £1,290 for a round-trip flight. On average, the best prices for flying Business Class on this route can be found at Icelandair.

FAQs for Business Class London to Seattle Flights

  • What is the best airline when flying business class between London and Seattle?

    The highest-rated airline by KAYAK users offering business class flights for this route is KLM, with an overall rating of 7.8.

KAYAK’s Tips for Finding Cheap Business Class Flights from London to Seattle

  • Try flying direct if you’re looking to save money, as direct business class tickets are cheaper on average.

Reviews of the Top 5 Airlines Flying Business Class from London to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from London to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly business class to Seattle? 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.
7.8
KLMOverall score based on 1524 reviews
8.4Crew
7.8Boarding
7.7Comfort
7.3Food
7.2Entertainment
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Brand new plane lots of room the snack was very flavourful and enjoyable

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

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

The plane's pilots, including the captain himself, thanked me for the flight. I know it's just marketing, but it was really nice to see these people. It's a great idea. Airplane food is never "good," but the entire crew and flight organization were top-notch. I really liked Delta, and I think I've traveled all over the world, and that was something new for me. Maybe even the old planes, the B767, but next time I have a choice, Delta will be my first choice. Thank you, a satisfied passenger :)

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

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…

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.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

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.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

At least one soda free, felt like I was nickeled to death.

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

The movie choices were poor. The worst problem is the treatment of passengers durinng pre-boarding. In one case the primes were checked in and sent down the boarding tunnek only to stand waiting there while the plane is cleaned. In the second case the bus was loaded, the doors closed and just stood there unmoving like sardeines in a tin for over TEN minutes. In both cases it was rough on us old guys who find standing for long periods trying.. In other words, Donnt just stack us up and forget us.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

Poor service, antiquated plane with 2-3-2. B-class config upstairs. Tight and not comfortable—not what I expected for paying B-class! AND my bag didn’t make the transfer, bag will be delivered the day after it lands!

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

The map feature on the display at the seat had challenges. The biggest issue was the flight had no WIFI. Most of the smaller planes now have free WIFI. American Airlines on the flight over had WIFI you could purchase. With 8-10 hours on a single flight, the ability to do work via WIFI is essential!!

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

Smooth flight. The seats were comfortable but the reclining mechanism didn't work very well. My wife's seat required the flight attendant to push the seat forward while she pushed the button. The leg support didn't want to return to its home under the seat. I ordered the diabetic meal which was full of carbs. It was low in sugar but carbs turn into sugar so was it really diabetic? Overall the flight was pleasant, long but pleasant.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Everything you need to know for your flight to Seattle

Cabin class types available on flights from London to Seattle

Cabin classes available on flights from London to Seattle. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.