When is the cheapest time of year to fly from London to Seattle?

Based on statistics over the past years, the lowest prices for flights from London to Seattle can be found flying in these months: .

Cheap Flights from London to Seattle

Cheapest flights from London to Seattle

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from London to Seattle. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$273

EasyJet

2 transfers

2d 0h 16m

05/29/2025

The cheapest one-way flight from London to Seattle departs on 05/29/2025, is operated by EasyJet and costs $273

Cheapest round trip flight

$583

Icelandair

1 transfer

1d 0h 40m

09/13/2025

The cheapest roundtrip flight from London to Seattle departs on 09/13/2025, is operated by Icelandair and costs $583

The fastest flight

1d 0h 8m

Fastest flight from London to Seattle takes 1d 0h 8m

Direct flights

No direct flights

There are no direct flights on this route.

Earliest flight

9:25 AM

Latest flight

6:30 PM

Direct flights count

115

Distance

7706km

Timezone difference

8h

The distance between London and Seattle is 7706km (4778 miles). There are 115 direct flights from London to Seattle. The time difference between London and Seattle is 8h . Flights from London begin at 9:25 AM. The latest flight from London departs at 6:30 PM.

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from London to Seattle by month

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from London to Seattle

Avg Price

Airlines operating on route

Below you will find a list of airlines operating flights on the London — Seattle route and the starting prices for flights of each specific airline on it.

Wizz Air

Starting at $398

Ryanair

Starting at $439

EasyJet

Starting at $449

Norwegian Air Shuttle

Starting at $458

Vueling

Starting at $462

Skyview Airways Company Limiteddba Skyview

Starting at $523

British Airways

Starting at $563

Direct Flights from London to Seattle

A direct flight is the most convenient and comfortable way to fly from London to Seattle, despite the fact that sometimes flights with transfers can cost significantly less.

London — Seattle

LON — SEA

05/09/2025

Departure date

Direct flight

VS105

Starting at $2,906

London — Seattle

LON — SEA

05/10/2025

Departure date

Direct flight

BA49

Starting at $2,819

London — Seattle

LON — SEA

05/29/2025

Departure date

Direct flight

BA5449

Starting at $2,884

London — Seattle

LON — SEA

05/31/2025

Departure date

Direct flight

BA3509

Starting at $890

London — Seattle

LON — SEA

07/19/2025

Departure date

Direct flight

BA5449

Starting at $2,186

London — Seattle

LON — SEA

07/20/2025

Departure date

Direct flight

BA5449

Starting at $2,186

London — Seattle

LON — SEA

08/11/2025

Departure date

Direct flight

BA5449

Starting at $1,169

Schedule of direct flights from London to Seattle

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from London to Seattle:

Unable to find information about the schedule of direct flights from

London airports overview

LTN

London Luton Airport

Airlines flying to this airport

$391

Starting at

$391-217%

on average

STN

Stansted Airport

Airlines flying to this airport

$267

Starting at

$394-214%

on average

LGW

London Gatwick Airport

Airlines flying to this airport

$386

Starting at

$482-157%

on average

LHR

London Heathrow Airport

Airlines flying to this airport

$467

Starting at

$1,238

on average

Seattle airports overview

SEA

Seattle-Tacoma International Airport

Airlines flying to this airport

$273

Starting at

$1,125

on average

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

How much is the cheapest flight ticket from London to Seattle?

The cheapest flight ticket from London to Seattle according to data for the last 48 hours costs $273

When is the best time to buy air tickets on the route London — Seattle?

Often the best time to buy tickets from London to Seattle is 2 months before departure.

How long does it take to fly from London to Seattle?

The fastest flights from London to Seattle start from 8 minutes in the air.

Which airline can fly direct from London to Seattle?

The following airlines operate direct flights on the route London — Seattle: Virgin Atlantic, British Airways

Special offers and sales on air tickets from London to Seattle

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from London to Seattle

Alternative routes

•••••••••••••••••••

How much is the cheapest flight ticket from London to Seattle?

The cheapest flight ticket from London to Seattle according to data for the last 48 hours costs $273

When is the best time to buy air tickets on the route London — Seattle?

Often the best time to buy tickets from London to Seattle is 2 months before departure.

How long does it take to fly from London to Seattle?

The fastest flights from London to Seattle start from 8 minutes in the air.

Which airline can fly direct from London to Seattle?

The following airlines operate direct flights on the route London — Seattle: Virgin Atlantic, British Airways

Cheapest one way flight

$273

EasyJet

2 transfers

2d 0h 16m

05/29/2025

The cheapest one-way flight from London to Seattle departs on 05/29/2025, is operated by EasyJet and costs $273

Cheapest round trip flight

$583

Icelandair

1 transfer

1d 0h 40m

09/13/2025

The cheapest roundtrip flight from London to Seattle departs on 09/13/2025, is operated by Icelandair and costs $583

Cheap Flights from London to Seattle Starting at $273

1

Economy

Cheapest flights from London to Seattle

Cheapest one way flight

$273

EasyJet

2 transfers

2d 0h 16m

05/29/2025

Cheapest round trip flight

$583

Icelandair

1 transfer

1d 0h 40m

09/13/2025

The fastest flight

1d 0h 8m

Direct flights

No direct flights

Earliest flight

9:25 AM

Latest flight

6:30 PM

Direct flights count

115

Distance

7706km

Timezone difference

8h

Airfare from London to Seattle by month

Airlines operating on route

Direct Flights from London to Seattle

Schedule of direct flights from London to Seattle

London airports overview

Seattle airports overview

Frequently asked questions (FAQ)

Special offers and sales on air tickets from London to Seattle

Alternative routes

Cheapest one way flight

$273

EasyJet

2 transfers

2d 0h 16m

05/29/2025

Cheapest round trip flight

$583

Icelandair

1 transfer

1d 0h 40m

09/13/2025

The fastest flight

1d 0h 8m

Direct flights

No direct flights

Earliest flight

9:25 AM

Latest flight

6:30 PM

Direct flights count

115

Distance

7706km

Timezone difference

8h