$184+ Cheap flights from Seattle (SEA) to London (LON)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Seattle/Tacoma Intl to London are usually found in November or January, booked 7 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from Seattle to London
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2024.
Popular in | June |
|---|---|
Cheapest in | November |
Round-trip from | $466 (Norse) |
One-way from | $184 (Combigo) |
What is the cheapest day to fly round-trip from Seattle to London?
Wednesday 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.
How far in advance should I book a flight from Seattle to London?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 8 days in advance, which can save you up to 42% on flights from Seattle to London compared to booking the week you need them. Waiting 8 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 $668. For sooner than that we have options available in the next 3 days from $1,071.
What is the cheapest month to fly from Seattle to London?
November is one of the best times of the year to fly to London from Seattle. Prices for November average $842 per person but you can even find prices for as low as $537. The most expensive prices can be found in the month of June. Opting for a November flight can save you 42% on your journey compared to booking in June
What is the cheapest time of day to fly from SEA to LON?
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 16% on airfare.
Cheap Seattle to London flights in July & August 2024
Find cheap flight options from Seattle to London specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,751,780 searches. Prices were last updated on July 26, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. For more flight deals, be sure to check back very soon.
This eDestinos deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Norse deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This iWofly deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Seattle to London 2024 flight deals
Discover exclusive flight deals for travel between Seattle and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,751,780 searches. Data last updated July 26, 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. For more flight deals, be sure to check back very soon.
This Norse deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CrystalTravel deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This mytrip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Seattle to London flights leaving soon
Find last-minute flight options from Seattle to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,751,780 searches. Data last updated July 26, 2024.
Have a look at some of the last-minute flights available departing from Seattle to London. Users should examine the flight details to ensure there are no surprises.
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
One-way flights to London from Seattle
Search for one-way flight options from Seattle to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,751,780 searches. Data last updated July 26, 2024.
Some of the best available deals we've found on one-way flights from Seattle to London. Those seeking round-trip flights from Seattle to London should utilize the search form at the the top of the page.
This Combigo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Netflights deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelocity deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Combigo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Seattle to London within your budget
Customize your flight search to find flights from Seattle to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,751,780 searches. Data last updated July 26, 2024.
Fly from
Fly to
Budget
$466 - $590
Route
Depart
Return
Price
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Wed 9/18
1 stop36h 00m
London Gatwick
Tue 9/24
1 stop33h 35m
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Tue 12/3
1 stop12h 20m
London Gatwick
Thu 12/12
1 stop13h 05m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Wed 10/2
1 stop18h 40m
London Heathrow
Fri 10/18
1 stop30h 20m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Fri 11/8
1 stop12h 50m
London Heathrow
Sun 11/17
1 stop17h 25m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Tue 8/27
Nonstop9h 20m
London Heathrow
Thu 9/19
Nonstop9h 45m
Seattle/Tacoma IntlLondon Gatwick
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Tue 10/1
1 stop18h 40m
London Gatwick
Tue 10/8
1 stop18h 20m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Thu 11/7
1 stop20h 25m
London Heathrow
Sun 11/10
2 stops17h 40m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Mon 11/4
1 stop13h 59m
London Heathrow
Tue 11/19
1 stop13h 40m
Seattle/Tacoma IntlLondon Heathrow
SEA - LHR
SEALHR
Seattle/Tacoma Intl
Fri 1/17
1 stop13h 35m
London Heathrow
Sat 1/25
1 stop31h 48m
How far ahead should I book a flight from Seattle to London?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to London. Price data was last updated on July 23, 2024.
Booking 7 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Seattle to London?
Use this chart to determine the cheapest time to fly round-trip from Seattle to London. Price data was last updated on July 21, 2024.
Best time to book a flight from Seattle to London
Have a flexible travel schedule? Discover the best time to fly to London from Seattle with our price prediction graph.
Temperature and rainfall in London by month
Plan your trip to London by taking into account the average temperature and rainfall totals by month.
LON Temperature | 39.2 - 62.6 °F |
|---|
If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated July 26, 2024.
See what other customers who have flown with Lufthansa, Air Canada and American Airlines from Seattle to London have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Entertainment
Comfort
Crew
Overall
Food
Boarding
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Related info for your journey
Find useful and relevant information for your journey from Seattle to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to LondonSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Seattle to London
Discover the top 10 airlines that operate flights from Seattle to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,751,780 searches. Data last updated July 26, 2024.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$402 | Average$692 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$503 | Average$702 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$533 | Average$741 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$562 | Average$787 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$575 | Average$882 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$580 | Average$794 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$594 | Average$878 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$597 | Average$880 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$597 | Average$908 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$615 | Average$905 | FlexibilityNo cancel fee | On-time70% |
Search flights from Seattle to London by cabin class
Find flights from Seattle to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Seattle to London
Find hourly flight availability from Seattle to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 26, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 50%of flight departures | AfternoonNoon to 6 pm |
| 49%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Seattle to London
Explore weekly flight availability from Seattle to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 26, 2024.
| Sunday | 20daily flights |
|---|---|
| Monday | 20daily flights |
| Tuesday | 15daily flights |
| Wednesday | 20daily flights |
| Thursday | 20daily flights |
| Friday | 20daily flights |
| Saturday | 20daily flights |