Menu

Cheap flights from Seattle (SEA) to Heathrow (LHR)

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

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

Cheap flights from Seattle to Heathrow in November 2019

The best prices found for SEA to LHR flights for November
19 Nov - 7 Dec
$605pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
30 Nov - 5 Dec
$612pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Heathrow 2019 flight deals

Cheap flights to Heathrow from Seattle found for this year
14 Dec - 27 Dec
$570pp
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
   
2 STOPS
SEA
Seattle/Tacoma Intl
30 Dec - 7 Jan
$607pp
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Alternative routes for Seattle to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Seattle to Heathrow
Today's exchange rate
$1.00 = £0.78
Flight duration
9h 42m
Average temperature for November in Heathrow
51.8 °F
Avg rainfall for November in Heathrow
2.4 ″

Airports servicing Seattle

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

Airports servicing London

Related info for your journey

Useful info, stats and facts about Seattle to Heathrow flights.

Flight FAQs

From Seattle to Heathrow

How popular is this flight route?

Within the past month, 12 users have taken a look at flights from Seattle to London Heathrow.

What percent of flights are delayed?

Airlines departing from Seattle to Heathrow can be delayed by up to 91min. or more hours.

How many passenger seats are available on a flight on this route?

Commercial airlines for the flight route can seat a total of 542 passengers per day from Seattle to London Heathrow.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for British Airways, as currently they have the cheapest options available from Seattle to Heathrow. On average you can find 29 flights for this flight path daily.

How long does the flight from Seattle to Heathrow take?

A nonstop flight takes up to 10 hours, covering a distance of 2,990 miles.

How many flights depart from Seattle to Heathrow on average per day?

18 flight departures from Seattle to London Heathrow per day on average.
Afternoon (Noon - 6pm) - 61% of flight departures
Evening (6pm - Midnight) - 39% of flight departures

Is Seattle weather warmer or cooler than Heathrow?

We forecast the temperature to be around the 77 °F's in July, on average. The temperature in Heathrow is generally colder than in Seattle. Book flights in a timely manner in correlation to your departure date.