Question 1

What’s the top stopover airport for flights from Southampton to Seattle?

Accepted Answer

Amsterdam (AMS) – chosen by Cheapflights users on 67% of one-stop itineraries from Southampton to Seattle on Cheapflights.

Question 2

What’s the cheapest stopover airport for flights from Southampton to Seattle?

Accepted Answer

Amsterdam (AMS) is the most affordable one-stop option, with an average return flight price of £673.

Question 3

What’s the fastest stopover option from Southampton to Seattle?

Accepted Answer

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 16h 40m.

Question 4

Which airport typically offers the quickest stopover for flights from Southampton to Seattle?

Accepted Answer

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 9h 19m.

Question 5

How long is the flight from Southampton to Seattle?

Accepted Answer

British Airways can get you from Southampton to Seattle in just under 16h 10m. Your travel time can differ by up to . The distance from Southampton to Seattle is about 4787 mi.

Question 6

What is the cheapest month to book a flight from Southampton to Seattle?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Southampton to Seattle (average of £622). Flying from Southampton to Seattle in July is currently the most expensive (average of £946). 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.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 9

How far in advance should I book a flight from Southampton to Seattle?

Accepted Answer

To save on the cost of your flight from Southampton to Seattle, book at least 45 days before your planned departure. Booking around this time can save you about 41% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £548 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £792.

Question 10

What is the cheapest month to fly from Southampton to Seattle?

Accepted Answer

January is one of the best times of the year to fly to Seattle from Southampton. Prices for January average £550 per person but you can even find prices for as low as £324. The most expensive prices can be found in the month of August. Opting for a January flight can save you 26% on your journey compared to booking in August

Question 11

What is the cheapest time of day to fly from SOU to SEA?

Accepted Answer

When flying from Southampton to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 12

Can I find deals for flights from Southampton to Seattle that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Southampton to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 13

How can I find direct flights from Southampton to Seattle?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Seattle.

Question 14

Can I find deals for business class flights from Southampton to Seattle?

Accepted Answer

Yes. Cheapflights offers flight deals from Southampton to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 15

How does Cheapflights help users find flights from Southampton to Seattle?

Accepted Answer

Deals for Southampton to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 16

Why should you use Cheapflights to find cheap flight tickets from Southampton to Seattle?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Southampton to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 17

Can Cheapflights find flights from Southampton to Seattle with no change fees?

Accepted Answer

Need flexible booking options for your flight to Seattle from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 18

Can Cheapflights notify me if prices for flights from Southampton to Seattle become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on Southampton to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	£902
One-way from	£442
Popular in	August
Cheapest in	January
Average price	£697

Cheap flights from Southampton to Seattle from £442

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Seattle

Cheapest flights from Southampton to SeattleExplore the most affordable flight options available from Southampton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Explore the most affordable flight options available from Southampton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Seattle that are best for you.

Best time to book a flight from Southampton to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Southampton with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Southampton to Seattle

What is the cheapest month to book a flight from Southampton to Seattle?

What’s the top stopover airport for flights from Southampton to Seattle?

What’s the fastest stopover option from Southampton to Seattle?

What’s the fastest stopover option from Southampton to Seattle?

Which airport typically offers the quickest stopover for flights from Southampton to Seattle?

Related info for your journey

Find useful and relevant information for your journey from Southampton to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Southampton to Seattle?

Can I find deals for flights from Southampton to Seattle that include hotel bookings?

How can I find direct flights from Southampton to Seattle?

Can I find deals for business class flights from Southampton to Seattle?

What is the cheapest month to book a flight from Southampton to Seattle?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southampton to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Seattle?

Can Cheapflights find flights from Southampton to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Seattle become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Southampton to Seattle
Explore the most affordable flight options available from Southampton to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 August 2025.