Popular in | June |
---|---|
Cheapest in | January |
Round-trip from | $644 |
One-way from | $248 |
Friday flights are found to be more expensive to fly from Seattle to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 39% on flights from Seattle to London compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $866. For sooner than that we have options available in the next 3 days from $1,144.
January is one of the best times of the year to fly to London from Seattle. Prices for January average $860 per person but you can even find prices for as low as $462. The most expensive prices can be found in the month of June. Opting for a January flight can save you 32% on your journey compared to booking in June
One of the essential ways to save on airfare from Seattle to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 17% on airfare.
One of the most popular airlines traveling from Seattle to London is Icelandair. Seattle to London flights are typically 60% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $985.93 RT. The cheapest Icelandair flight found for this route was $637. The most popular departure airport in Seattle when flying to London is Seattle/Tacoma Intl Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Seattle to London, Icelandair flights are 5% more popular than any other airline flying that same route.
If you’re traveling from Seattle to London, one of the more common airlines traveling that route is KLM. Flights from KLM traveling this route typically cost $1,255.15 RT. This price is typically 52% cheaper than other airlines that offer Seattle to London flights. When booking this route, the cheapest RT price found was $905. Seattle/Tacoma Intl Airport is the most common Seattle airport to take off from when flying to London. London Heathrow Airport is the most popular arrival airport in London. When flying from Seattle to London, KLM flights are 5% more popular than any other airline flying that same route.
Fly from
Fly to
Budget
$566 - $652
Route
Depart
Return
Price
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Wed 10/9
1 stop11h 55m
London Gatwick
Tue 11/12
1 stop15h 01m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 9/22
1 stop33h 00m
London Heathrow
Mon 10/7
1 stop28h 30m
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Tue 9/24
1 stop18h 40m
London Gatwick
Wed 10/2
1 stop18h 20m
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Tue 10/15
2 stops19h 03m
London Gatwick
Tue 10/29
2 stops33h 21m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 10/1
1 stop14h 50m
London Heathrow
Thu 10/24
2 stops17h 46m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 10/1
2 stops17h 10m
London Heathrow
Fri 10/25
1 stop15h 59m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 10/1
1 stop30h 27m
London Heathrow
Fri 10/25
1 stop30h 20m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Sun 10/13
Nonstop9h 40m
London Heathrow
Wed 10/23
1 stop13h 05m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 9/25
Nonstop9h 20m
London Heathrow
Wed 10/2
Nonstop9h 55m
Currently, November is the cheapest month in which you can book a flight from Seattle to London (average of $653). Flying from Seattle to London in June is currently the most expensive (average of $1,173). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
$675
February
$664
March
$715
April
$700
May
$748
June
$1,173
July
$987
August
$779
September
$748
October
$712
November
$653
December
$672
LON Temperature | 39.2 - 62.6 °F |
---|
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
Entertainment
Comfort
Overall
Crew
Boarding
Food
Reviews
Terrible flight crew that skipped our row for service multiple times.
0%of flight departures | Early morningMidnight to 6 am |
---|---|
0%of flight departures | Morning6 am to noon |
40%of flight departures | AfternoonNoon to 6 pm |
60%of flight departures | Evening6 pm to midnight |
Sunday | 20daily flights |
---|---|
Monday | 20daily flights |
Tuesday | 15daily flights |
Wednesday | 20daily flights |
Thursday | 20daily flights |
Friday | 20daily flights |
Saturday | 20daily flights |
When you search for this flight from Seattle to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to London.
Yes! Cheapflights helps users easily find flights from Seattle to London with no change fees.
Not ready to book yet? You can track prices for flights from Seattle to London on Cheapflights with our Price Alert feature and get notified when better prices are available.