Menu
Menu
New York

Cheap flights from Seattle (SEA) to London (LON)

Know your dates, get live prices in seconds:

From
To
Depart
–
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
Add another flight clear all

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

03A
Seattle
LON
London
 Add details to search for flights
Cheap flights from Seattle to London

Cheap flights from Seattle to London in June 2019

The best prices found for SEA to LON flights for June
27 Jun - 3 Jul
$1138pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
26 Jun - 3 Jul
$1179pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
26 Jun - 3 Jul
$1209pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LCY
London City
LCY
London City
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to London 2019 flight deals

Cheap flights to London from Seattle found for this year
14 Oct - 29 Oct
$386pp
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
15 Oct - 30 Oct
$386pp
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Oct - 29 Oct
$386pp
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to London

Late deals on round-trip flights to London from Seattle, departing today and this week
24 Jun - 14 Aug
$1114pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Jun - 3 Jul
$1138pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
24 Jun - 14 Aug
$1175pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl

Destination information for London

Things to know before you go. Useful info for your trip from Seattle to London
Today's exchange rate
$1.00 = £0.80
Flight duration
9h 35m

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Redmond (SEA)

Airports servicing London

Southend (SEN)
Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)
Average temperature for June in London
21.0 °C
Avg rainfall for June in London
43.0 mm
There will be 0 inch more rainfall in London than in Seattle over the next ten days.
The weather in London is likely to be 70°F for the next ten days.
Direct flights from Seattle to London are currently (7 > 0) available on Sun, Mon, Tue, Wed, Thu, Fri and Sat.
Which airlines fly from Seattle to London?
There are currently 12 airlines offering direct flights from Seattle to London , including American Airlines, KLM, Aer Lingus.
So far this month, there have been 1567 searches for flights from Seattle to London.
How many flights depart from Seattle to London on average per day?
Per day, 22 flights depart from Seattle to London on average.
Afternoon (Noon - 6pm) - 77% of flight departures
Evening (6pm - Midnight) - 23% of flight departures
How long does the flight from Seattle to London take?
A nonstop flight takes up to 10 hours, covering a distance of 2,993 miles.