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Flights from Seattle to London – Airlines & connecting routes

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SEA to LGW flights and routes map SEA to LGW – All flight route options from Seattle Tacoma International, Washington, USA to Gatwick, United Kingdom. These flights are operated by 11 different airlines through 6 different connections. The shortest flight time is 12 hours and 20 minutes. See the full flight schedule and time table, including departure times, airlines and stopover details to find the best option for you.

From
To
USA SEA Seattle Tacoma Seattle, WA, USA
United Kingdom LGW Gatwick, United Kingdom
SEA
Seattle Tacoma
USASeattle, WA, USA
Gatwick
United KingdomLondon, United Kingdom
LGW
No direct flights found
7 routes with 1 stop found »
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1 stop route options with the same airline:

Duration

Via Reykjavik KEF
1 stop with Icelandair. 2 flights per day.

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12h 20m

Via Reykjavik KEF
1 stop with Icelandair.
12h 20m
2 flights per day.
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Via Boston BOS
1 stop with JetBlue Airways.

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14h 05m

Via Boston BOS
1 stop with JetBlue Airways.
14h 05m
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Via New York JFK
1 stop with Delta Air Lines. 2 flights per day.

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14h 29m

Via New York JFK
1 stop with Delta Air Lines.
14h 29m
2 flights per day.
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1 stop route options with codeshare or different airlines:

Duration

Via Vancouver YVR With Air Canada & British Airways

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14h 40m

Via Vancouver YVR
14h 40m
With Air Canada & British Airways
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Via New York EWR With American Airlines & Delta Air Lines
CODESHARE

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15h 50m

Via New York EWR
15h 50m
With American Airlines & Delta Air Lines
CODESHARE
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Via New York JFK With Alaska Airlines & American Airlines 1-2 flights per day.
CODESHARE

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16h 05m

Via New York JFK
16h 05m
With Alaska Airlines & American Airlines 1-2 flights per day.
CODESHARE
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Via Las Vegas LAS With Alaska Airlines & American Airlines 0-2 flights per day.
Tue,Thu & Sat
CODESHARE

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16h 54m

Tue,Thu & Sat
Via Las Vegas LAS
16h 54m
With Alaska Airlines & American Airlines 0-2 flights per day.
Tue,Thu & Sat
CODESHARE
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Seattle to London flights

With over 243 flights every week and 6 different airlines you have a wide range of options. While flying to London from Seattle you will be doing a stopover in Reykjavik, Boston or any other of the 6 alternatives with flight connections.

Are there any non-stop flights from SEA to LGW?

You could fly non-stop from SEA to LGW before with Norwegian Air or Norwegian Air UK but not anymore.

Tip! Consider arriving at City (LCY) or Heathrow (LHR) instead.

Seattle to London with Icelandair

If you fly from Seattle with Icelandair you will do a stopover in Reykjavik, KEF before reaching London. This flight trip will take 12 hours and 20 minutes and you can fly every weekday with departures between 2:00 pm and 7:00 pm.

Distance & flight times: Seattle Airport to Gatwick

The shortest flight time between SEA and LGW is 12 hours and 20 minutes.

ViaTotal flight timeLayover timeDistance
KEF Reykjavik12h 20m1h 25m4840 miles (7788 km)
BOS Boston14h 5m1h 45m5794 miles (9323 km)
YVR Vancouver14h 40m4h 7m4887 miles (7863 km)
EWR New York15h 50m--
JFK New York16h 5m3h 36m5907 miles (9504 km)
LAS Las Vegas16h 54m3h 11m6140 miles (9879 km)
The flight times and layover times in the table above are approximate and may vary depending on flight number, aircraft, airline, weather, and time of day.SEA-LGW flight routesSeattle to London flight routes illustrated on a map.
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Seattle - London route map and flight paths
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From Seattle to United Kingdom

Below is a list of other destinations to United Kingdom from Seattle Tacoma International with either direct flights or 1 stop connections.

From USA to London

Below is a list of other cities in USA with flights to London with either non-stop or connecting flights.

The fastest way to fly from Seattle (SEA) to London (LGW) is via Reykjavik and it will take about 12 hours and 20 minutes. The second fastest route is via Boston and will take 14 hours and 5 minutes.

You can fly with Icelandair, JetBlue Airways, Air Canada, British Airways, American Airlines, Delta Air Lines or Alaska Airlines from Seattle to London.

The flight time between Seattle Tacoma (SEA) and Gatwick (LGW) via Keflavík International Airport, KEF is 12 hours and 20 minutes.

Not anymore. But you could fly direct from SEA to LGW with Norwegian Air and Norwegian Air UK once. However, you can still fly via Reykjavik or Boston among other routes.

A codeshare agreement means that cooperating airlines are able to sell seats on each other’s flights. This means that you are able to travel to more destinations than your airline of choice normally offers. Codeshare flights are also beneficial because of the seamless transits you can get with connecting flights from the same airline. The downside of choosing a codeshare flight can be that you in some cases can’t upgrade codeshare flights or use elite benefits.

A connecting or transit flight means that you reach your final destination through two or more flights – in other words a non-direct flight. You will change to a new aircraft after your first flight, this may include moving to another terminal at the airport aswell. The time required to transfer passengers and luggage between flights is called Minimum Connecting Time (MCT) and are always taken into account here on Flightroutes.com.

If you bought your whole flight on a single ticket, the airline will book you on the next available connecting flight.

With connecting flights, checked in luggage is most commonly forwarded to your final destination when buying a single ticket for both flights.

If you miss your connecting flight due to circumstances outside your control such as your first flight being delayed, you should turn to your airline who will provide you with a seat on the next available flight. This is usually done free of charge, and only applies if you purchased your trip as one ticket. If the next connecting flight is the following day, the airline usually provides accommodation and meals.
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