Find flights
Deals
FAQs
United Kingdom
GBP

Cheap First Class flights to Seattle

LHR — SEA
11 Nov — 18 Nov1
1 adult
1 adult, First, 0 bags

Best travel deals

Find the best flight deals available from hundreds of sites within seconds

Trusted and free

Cheapflights is 100% free to use. No hidden charges!

Book with flexibility

Easily find flight tickets with no change fees

Cheap first class flights to Seattle in 2026

Average Price

£4,494

Cheapest Price

£669

Top Rated Airline

British Airways

No. of Airlines

1

Arrival Airport

Seattle/Tacoma Intl Airport
Average for return first class flights in October 2026
Search Deals
The lowest price for a first class flight ticket to Seattle
Search Deals
Most popular airline to fly first class with to Seattle in the past 7 days
Search Deals
Airline that offers first class options for this route
Search Deals
Closest airport for this route
Search Deals

Find first class flight deals to Seattle

Enter your travel dates to find the best prices.

Cheapest first class flights to Seattle

Tue 22/1209:25 -
Nonstop10h 00m
Sat 2/113:40 -
Nonstop9h 30m
Deal found 11/10£5,558
Wed 16/1214:55 -
Nonstop9h 55m
Wed 6/118:45 -
Nonstop9h 25m
Deal found 12/10£6,039
Sat 9/109:25 -
Nonstop10h 00m
Sat 23/118:45 -
Nonstop9h 25m
Deal found 10/10£6,108
Thu 19/1109:25 -
Nonstop10h 00m
Wed 2/1218:45 -
Nonstop9h 25m
Deal found 12/10£6,584
Fri 20/1114:55 -
Nonstop9h 55m
Fri 27/1118:45 -
Nonstop9h 25m
Deal found 11/10£6,746
Mon 28/1210:05 -
1 stop16h 58m
Wed 13/106:00 -
1 stop20h 00m
Deal found 12/10£7,838

Travel insights for first class flights from United Kingdom to Seattle

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

Rainfall in Seattle 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

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 first class tickets

  • What is the cheapest price for a First Class ticket to Seattle?

    According to recent data, a user was able to book a First Class flight from London Heathrow Airport to Seattle for just £669. Secure the cheapest First Class flight tickets to Seattle now - prices start at £4,494/person!

  • How much do Business Class flight tickets to Seattle cost?

    Want comfortable seats without paying First Class prices? For around £2,856/ticket, you can experience comfort and some premium flight services with a Business Class flight to Seattle. Not to mention, Business Class cabin tickets are often 37% cheaper than First Class - in case you need more motivation.

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

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

Browse thousands of different options on Cheapflights for your next trip