London to Seattle (LHR-SEA): nonstop upgrade & award space

British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic fly nonstop between London (LHR) and Seattle (SEA), roughly 26 times a week. The timetable below shows the nonstop scheduled at 8h 45m to 10h 34m for the 4,786 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

See LHR to SEA on the interactive map Get started free
26
Flights a week, 4-week average
8h 45m to 10h 34m
Scheduled flight time
4,786 mi
Nonstop distance
Free
To get started

London to Seattle flight schedule

Scheduled nonstop departures for LHR to SEA starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from London (LHR) to Seattle (SEA)
Date Flight Airline Departs LHR Arrives SEA Duration Aircraft
BA 53British Airways09:5011:359h 45mBoeing 787-10 Dreamliner
VS 105Virgin Atlantic11:4014:0010h 20mAirbus A330-900neo
BA 49British Airways16:3018:259h 55mBoeing 777-300ER
AS 101Alaska Airlines, Inc.17:0019:0010hBoeing 787-9 Dreamliner
DL 21Delta Air Lines17:4520:1410h 29mAirbus A330-900neo
BA 53British Airways09:5011:359h 45mBoeing 787-10 Dreamliner
VS 105Virgin Atlantic11:4014:0010h 20mAirbus A330-900neo
BA 49British Airways15:5517:509h 55mBoeing 777-300ER
AS 101Alaska Airlines, Inc.17:0019:0010hBoeing 787-9 Dreamliner
DL 21Delta Air Lines17:4520:1410h 29mAirbus A330-900neo
DL 21Delta Air Lines12:2015:5410h 34mAirbus A330-200
AS 101Alaska Airlines, Inc.14:4518:0510h 20mBoeing 787-9 Dreamliner
BA 49British Airways14:5517:509h 55mBoeing 777-300ER
DL 21Delta Air Lines12:2015:5410h 34mAirbus A330-200
AS 101Alaska Airlines, Inc.14:4518:0510h 20mBoeing 787-9 Dreamliner
BA 49British Airways14:5517:509h 55mBoeing 787-10 Dreamliner
BA 53British Airways09:5011:358h 45mBoeing 787-10 Dreamliner
DL 21Delta Air Lines12:2015:5410h 34mAirbus A330-200
AS 101Alaska Airlines, Inc.14:4518:0510h 20mBoeing 787-9 Dreamliner
BA 49British Airways14:5517:509h 55mBoeing 787-10 Dreamliner
DL 21Delta Air Lines12:2015:5410h 34mAirbus A330-200
AS 101Alaska Airlines, Inc.14:4518:0510h 20mBoeing 787-9 Dreamliner
BA 49British Airways14:5517:509h 55mBoeing 787-10 Dreamliner
BA 53British Airways09:5011:358h 45mBoeing 787-10 Dreamliner
DL 21Delta Air Lines12:2015:5410h 34mAirbus A330-200
AS 101Alaska Airlines, Inc.14:4518:0510h 20mBoeing 787-9 Dreamliner
BA 49British Airways14:5517:509h 55mBoeing 787-10 Dreamliner

Showing all 27 scheduled LHR to SEA departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every LHR to SEA date on the interactive map

Aircraft on the London to Seattle nonstop

In the schedule table on this page, British Airways flies the Boeing 787-10 Dreamliner and the Boeing 777-300ER. Alaska Airlines flies the Boeing 787-9 Dreamliner. Delta Air Lines flies the Airbus A330-200 and the Airbus A330-900neo. Virgin Atlantic flies the Airbus A330-900neo. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on LHR to SEA departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines, segment by segment and date by date. Open the calendar for London to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

In the 7 days to October 19, 2026, 2LNR checked award space on London to Seattle departures from October 19 to November 1. Delta Air Lines had space open on 9 of 14 dates checked and Alaska Airlines on 0 of 14.

See real availability

Confirmed upgrade or award seats by date on the LHR to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See LHR to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying London to Seattle nonstop

Carriers operating LHR to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See LHR to SEA on the interactive map →

Frequently asked questions about LHR to SEA

How long is the flight from London (LHR) to Seattle (SEA)?
Scheduled flight times from London (LHR) to Seattle (SEA) run from 8h 45m to 10h 34m across the departures in the schedule table on this page. The nonstop covers about 4,786 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from LHR to SEA?
British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic fly LHR to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines and Alaska Airlines.
How many flights a week are there from LHR to SEA?
About 26 nonstop flights a week run between London (LHR) and Seattle (SEA) in the current schedule, operated by British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from LHR to SEA depart?
Scheduled LHR to SEA nonstops in the next 7 days with service leave between 09:50 and 17:45, local time at London. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate LHR to SEA nonstop?
In the schedule table on this page, LHR to SEA nonstops fly as BA 49 and BA 53 on British Airways; AS 101 on Alaska Airlines; DL 21 on Delta Air Lines; and VS 105 on Virgin Atlantic. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on LHR to SEA?
Open the LHR to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines and Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss LHR to SEA upgrade or award space

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free