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Cheap Business Class flights to Seattle

LHR — SEA
5 Apr — 12 Apr1
1 adult
1 adult, Business, 0 bags

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Cheap business class flights to Seattle in 2026

Find the latest flights to Seattle in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data were last updated on 6 March 2026.

Top Rated Airline

KLM

No. of Airlines

8

Arrival Airport

Seattle/Tacoma Intl Airport
Most popular airline to fly business class with to Seattle in the past 7 days
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Find business class flight deals to Seattle

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Cheapest business class flights to Seattle
Explore the most affordable business class flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 6 March 2026.

Sun 5/415:40
LGW
-
SEA
2 stops38h 48m
Icelandair
Sat 11/415:52
SEA
-
LGW
2 stops14h 48m
Icelandair
Deal found 5/3£1,615
Tue 7/413:05
LHR
-
SEA
1 stop15h 35m
Icelandair
Wed 15/422:48
SEA
-
LHR
2 stops29h 07m
Icelandair
Deal found 2/3£1,670
Mon 6/421:25
LHR
-
SEA
1 stop31h 15m
Icelandair
Wed 15/422:48
SEA
-
LHR
2 stops29h 07m
Icelandair
Deal found 2/3£1,672
Tue 7/413:05
LHR
-
SEA
1 stop15h 35m
Icelandair
Tue 14/419:00
SEA
-
LHR
1 stop17h 20m
Icelandair
Deal found 2/3£1,673
Wed 8/421:25
LHR
-
SEA
1 stop31h 15m
Icelandair
Wed 15/422:48
SEA
-
LHR
2 stops29h 07m
Icelandair
Deal found 2/3£1,697
Wed 8/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Sat 11/415:52
SEA
-
LGW
2 stops14h 48m
Icelandair
Deal found 2/3£1,703

Travel insights for business class flights from United Kingdom to Seattle

Get recent, data-driven insights about business class flights from United Kingdom to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a Business Class flight from United Kingdom to Seattle?

Currently, November is the cheapest month in which you can book a Business Class flight from United Kingdom to Seattle (average of £1,506). Flying from United Kingdom to Seattle in May is currently the most expensive (average of £1,927). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Frequently asked questions about Seattle business class tickets

Find answers to common questions related to business class tickets for flights to Seattle. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on 6 March 2026.

  • How many premium cabins does Finnair have for flights to Seattle?

    Finnair currently offers a couple premium cabin classes on flights to Seattle: Business Class, Prem Economy Class and First Class. Still not enough? Try taking a look at other airlines or choosing a new departing point for more cabin options.

  • What is the cheapest month to book a Business Class flight from United Kingdom to Seattle?

    Currently, November is the cheapest month in which you can book a Business Class flight from United Kingdom to Seattle (average of £1,506). Flying from United Kingdom to Seattle in May is currently the most expensive (average of £1,927). There are several factors that can impact the price of a flight, so comparing airlines, departure airports, and flight times can provide users with more options.

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