Cheap flights from Southampton to Seattle

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How to find the cheapest flight from
Southampton (SOU) to Seattle (SEA)

All the information you need to plan the best SOU to SEA flight in 2022: compare Southampton to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
When is the cheapest time to fly from Southampton to Seattle (SOU - SEA)?

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.

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

To save on the cost of your flight from Southampton to Seattle, book at least 52 days before your planned departure. Booking around this time can save you about 51% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £498 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £652.

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

February is one of the best times of the year to fly to Seattle from Southampton. Prices for February average £440 per person but you can even find prices for as low as £290. The most expensive prices can be found in the month of July. Opting for a February flight can save you 37% on your journey compared to booking in July

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Southampton</span> to <span class="emphasized">Seattle</span> flights.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Southampton?

Information is based on travel restrictions from Southampton Eastleigh to Seattle/Tacoma Intl

Most visitors from Southampton Eastleigh need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Southampton Eastleigh must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Southampton Eastleigh are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Southampton from Seattle?

Returning to Southampton Eastleigh from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Southampton Eastleigh.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Southampton Eastleigh.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Southampton to Seattle

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

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Southampton to Seattle.
Today's exchange rate
£1 = $1.25
Average temperature for May in Seattle
19.0 °C
Avg rainfall for May in Seattle
45.0 mm

Airports servicing Southampton

Airports servicing Seattle

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