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
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 7 August 2026.
Explore the most affordable first class flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 7 August 2026.
Sun 6/906:15 -
1 stop13h 00m
Sun 13/917:30 -
Nonstop9h 50m
Deal found 2/8£676
Tue 1/911:30 -
1 stop14h 13m
Wed 30/917:30 -
Nonstop9h 50m
Deal found 5/8£740
Tue 1/910:35 -
1 stop15h 08m
Wed 30/918:45 -
1 stop13h 15m
Deal found 5/8£751
Sun 6/910:25 -
1 stop15h 18m
Sun 13/913:30 -
1 stop11h 55m
Deal found 2/8£1,376
Tue 8/915:40 -
1 stop12h 55m
Tue 29/908:24 -
1 stop14h 31m
Deal found 5/8£7,902
Tue 8/916:30 -
Nonstop9h 55m
Tue 29/908:24 -
1 stop14h 31m
Deal found 5/8£12,761
Best first class flights to Seattle
Discover carefully curated first class flight deals to Seattle that have cost, travel time, and stopover in mind to ensure you get the best travel experience. Data last updated 7 August 2026.
Sun 6/906:15 -
1 stop13h 00m
Sun 13/917:30 -
Nonstop9h 50m
Deal found 2/8£676
Tue 1/910:35 -
1 stop15h 08m
Wed 30/918:45 -
1 stop13h 15m
Deal found 5/8£751
Tue 1/906:15 -
1 stop13h 00m
Wed 30/918:45 -
1 stop13h 50m
Deal found 5/8£752
Sun 6/910:25 -
1 stop15h 18m
Sun 13/913:30 -
1 stop11h 55m
Deal found 2/8£1,376
Tue 8/915:40 -
1 stop12h 55m
Tue 29/908:24 -
1 stop14h 31m
Deal found 5/8£7,902
Tue 8/916:30 -
Nonstop9h 55m
Tue 29/920:20 -
Nonstop9h 25m
Deal found 5/8£18,818
Sun 27/916:25 -
1 stop24h 58m
Deal found 3/8£4,276
Wed 16/909:50 -
Nonstop9h 45m
Deal found 6/8£5,979
Sun 27/916:30 -
Nonstop9h 55m
Deal found 3/8£8,180
One-way first class flights to Seattle
Search for one-way first class flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated 7 August 2026.
Sun 27/916:25 -
1 stop24h 58m
Deal found 3/8£4,276
Wed 16/909:50 -
Nonstop9h 45m
Deal found 6/8£5,979
Sun 27/916:30 -
Nonstop9h 55m
Deal found 3/8£8,180
Quickest first class flights to Seattle
Explore quickest first class flight options to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 August 2026.
Tue 8/916:30 -
Nonstop9h 55m
Tue 29/908:24 -
1 stop14h 31m
Deal found 5/8£12,761
Tue 8/916:30 -
Nonstop9h 55m
Tue 29/920:20 -
Nonstop9h 25m
Deal found 5/8£18,818
Tue 8/915:40 -
1 stop12h 55m
Tue 29/908:24 -
1 stop14h 31m
Deal found 5/8£7,902
Sun 6/906:15 -
1 stop13h 00m
Sun 13/917:30 -
Nonstop9h 50m
Deal found 2/8£676
Tue 1/911:30 -
1 stop14h 13m
Wed 30/917:30 -
Nonstop9h 50m
Deal found 5/8£740
Tue 1/910:35 -
1 stop15h 08m
Wed 30/918:45 -
1 stop13h 15m
Deal found 5/8£751
Wed 16/909:50 -
Nonstop9h 45m
Deal found 6/8£5,979
Sun 27/916:30 -
Nonstop9h 55m
Deal found 3/8£8,180
Sun 27/916:25 -
1 stop24h 58m
Deal found 3/8£4,276
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.
GB0-SEA
LHR-SEA
LGW-SEA
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 first class tickets
Find answers to common questions related to First Class tickets for flights to Seattle. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on 7 August 2026.
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Flights by cabin class
More first class flights
Popular routes
Complete your trip
Complement your first class flight to Seattle by adding a car hire and/or hotel room to your itinerary.
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.