Business & First Class Flights

Seattle to London

Pacific Northwest to the Atlantic in style

Quick Facts

Origin Airport: Seattle-Tacoma International Airport (SEA)
Destination Airport: London Heathrow (LHR) — also served by Gatwick (LGW) and London City (LCY)
Flight Duration: ~9.5 hours

Seattle is one of the world's premier departure points for premium international travel, and the route to London is a standout. Seattle-Tacoma International Airport is a major Pacific gateway with growing transpacific business class service to Tokyo, Seoul, and other key Asian cities. For technology executives and corporate travelers in the Pacific Northwest, SEA offers strong premium cabin access with significantly less airport congestion than San Francisco or Los Angeles. Our advisors will identify the best business class fares and routing options for your Seattle departure.

London is a destination that rewards travelers who arrive rested and ready. The world's premier transatlantic route — first and business class, arranged by experts. With a flight time of ~9.5 hours, the right seat makes the difference — and our advisors know exactly which carriers, fare classes, and routings deliver the best premium cabin experience on this corridor.

Ready to fly business or first class from Seattle to London?

Call now and a live advisor will find your best premium cabin options — business class, first class, and award space not available online.

Direct Concierge Line: (888) 620-2779 — Available 24/7/365

Frequently Asked Questions — Seattle to London

Which airports are used for flights from Seattle to London?: Flights from Seattle to London typically depart from Seattle-Tacoma International Airport (SEA) and arrive at London Heathrow (LHR) — also served by Gatwick (LGW) and London City (LCY). Our advisors can advise on routing options based on your preferred departure terminal and premium cabin availability on each route.
How long is the flight from Seattle to London?: The flight from Seattle to London is approximately ~9.5 hours. On a route of this length, a flat-bed business or first class seat makes a meaningful difference in comfort and how you arrive.
Is business class and first class available on flights from Seattle to London?: Yes — multiple carriers offer business class and first class on the Seattle–London route. Our advisors access premium cabin inventory across all operating carriers on this route, including award space, GDS-only fare classes, and upgrade-eligible tickets that don't appear on consumer booking sites.
How far in advance should I book a business class flight from Seattle to London?: For the best premium cabin availability on the Seattle–London route, we recommend booking 6–12 weeks in advance. However, our advisors regularly source last-minute premium inventory — call us and we'll search current availability across all carriers immediately.
Is award space available for business or first class from Seattle to London?: Award availability on the Seattle–London route varies by program, season, and carrier. Our advisors are experienced at identifying when premium award space opens across multiple loyalty programs and can recommend the best approach for your points and miles situation.