Skip to main content
  • Flights
  • Hotels
  • Cars
  • Flight+Hotel
  • Holiday deals
  • More
    Flights
    Hotels
    Cars
    Flight+Hotel
    Holiday deals
My Account

Cheap flights from London to Seattle

Know your dates, get live prices in seconds:

From
To
Depart
–
Return
Any month
1 adult
×
Cabin class
Travellers
16+
12-15
2-11
under 2
under 2
The price shown for each flight will be the average for all passengers, including any infants.
The price shown for each flight will be the average for all passengers, including any infants.
Compare vs Cheapflights |
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
Add another flight clear all
1 adult
The price shown for each flight will be the average for all passengers, including any infants.

We work with more than 300 partners to bring you better travel deals

LON
London
03A
Seattle
 Add details to search for flights
Home North America USA Washington Seattle Cheap flights from London to Seattle

Flights to get there soon

Flights to Seattle in the next month
14 Feb - 15 Apr
£342pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today
14 Feb - 15 Apr
£342pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today
19 Feb - 15 Apr
£359pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today

cheap flights for the next season

Find flight deals in the next 3 months
15 Apr - 25 Apr
£264pp
LHR
London
Air Canada
 
1 STOP
SEA
Seattle
SEA
Seattle
Air Canada
 
1 STOP
LHR
London
Found today
15 Apr - 25 Apr
£264pp
LHR
London
Air Canada
 
1 STOP
SEA
Seattle
SEA
Seattle
Air Canada
 
1 STOP
LHR
London
Found today
16 Apr - 30 Apr
£267pp
LHR
London
Air Canada
 
1 STOP
SEA
Seattle
SEA
Seattle
Air Canada
 
1 STOP
LHR
London
Found today

Flights for the forward planner

Search and compare flight prices in the next 6 months
8 May - 15 May
£270pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today
20 May - 28 May
£270pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today
21 May - 28 May
£270pp
LHR
London
Lufthansa
 
1 STOP
SEA
Seattle
SEA
Seattle
Lufthansa
 
1 STOP
LHR
London
Found today

Destination information for Seattle

Things to know before you go. Useful info for your trip from London to Seattle
Today's exhange rate
£1.00 = $1.29
Flight duration
9h 35m

Airports servicing London

Southend (SEN)
Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Redmond (SEA)
Average temperature for January in Seattle
8.8 °C
Avg rainfall for January in Seattle
143.7 mm
How much do things cost?
London is 0% more expensive than Seattle
Coke/Pepsi (0.33 litre)
Seattle £1.54
London £1.36
Large bottle of water
Seattle £1.64
London £1.03
Cappuccino
Seattle £3.35
London £2.87
Taxi - fixed fee
Seattle £2.14
London £3.43
Source

Popular flight searches

Check out other popular destinations found by fellow travellers
  • Flights from London to Paris
  • Flights to Barcelona
  • Flights to Amsterdam
  • Flights to New York
  • Flights to Paris
  • Flights to Malaga
  • Flights from Kent Intl to Paris
  • Flights from Southampton to Paris
  • Flights from London to Los Angeles
  • Flights to Dubai
Additional useful information for Seattle
There will be 3.6 mm more rainfall in Seattle than in London over the next ten days.
The weather in Seattle for the next ten days will be 8.8°C - that’s 0.2°C cooler than London.
According to recent data, direct flights from London to Seattle are available and depart daily.
Currently, our data suggests that 10 airlines fly London to Seattle directly, including American Airlines, Aer Lingus and Norwegian Air UK.
Over the last 30 days, 824 people have searched for cheap flights from London to Seattle.

Related info for your journey

Useful info, stats and facts about London to Seattle flights.
Flight FAQs
From London to Seattle
What percent of flights are delayed?
A delay of 1 hr 44.1 mins is common
How many passenger seats are available on a flight on this route?
On average, all flights from London offer a total of 524 seats to Seattle per day
How many passenger seats are available on a flight on this route?
Popular British Airways operates 28 flight per week
Related searches
Flights to Seattle from London
Flights to London
Flights to Seattle

International sites:

  • Cheapflights.co.uk (UK & Ireland)
  • Cheapflights.co.nz (New Zealand)
  • Cheapflights.com.ph (Philippines)
  • Cheapflights.qa (Qatar)
  • Cheapflights.com (USA)
  • Cheapflights.com.au (Australia)
  • Cheapflights.com.sg (Singapore)
  • Cheapflights.ca (Canada)
  • Cheapflights.com.hk (Hong Kong)
  • in.cheapflights.com (India)
  • Cheapflights.co.id (Indonesia)
  • Cheapflights.co.za (South Africa)
  • Cheapflights.com.my (Malaysia)
  • ae.cheapflights.com (UAE)
Travel Tips & News Flight Apps
  • About Cheapflights
  • Contact us & FAQs
  • Press Enquiries
  • Privacy Policy
  • Terms of Use
  • Become a Publisher
  • Cookie Policy
© 1996 - 2019 Momondo Group Ltd all rights reserved
Choose up to 4 origin airports
70 miles
Airport Miles Pop.
Enter a location to see nearby airports
Choose up to 4 airports
Enter a location to see nearby airports
Choose up to 4 destination airports
70 miles
Airport Miles Pop.
Enter a location to see nearby airports
Choose up to 4 airports
Enter a location to see nearby airports
Choose up to 4 origin airports
70 miles
Airport Miles Pop.
Enter a location to see nearby airports
Choose up to 4 airports
Enter a location to see nearby airports
Choose up to 4 destination airports
70 miles
Airport Miles Pop.
Enter a location to see nearby airports
Choose up to 4 airports
Enter a location to see nearby airports

Find flight deals

From
To
Depart
–
Return
Any month
1 adult
×
Cabin class
Travellers
16+
12-15
2-11
under 2
under 2
The price shown for each flight will be the average for all passengers, including any infants.
The price shown for each flight will be the average for all passengers, including any infants.
Compare vs Cheapflights |
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
Add another flight clear all
1 adult
The price shown for each flight will be the average for all passengers, including any infants.