In terms of precipitation, rainfall in State of Washington 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 State of Washington when rainfall is around 18.0 mm.

If weather is an important factor for your trip to State of Washington, 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).

How far in advance should I book a flight from Southampton to State of Washington?

Find a great deal and save up to 39% by booking at least 44 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Southampton to State of Washington within the next two weeks, with the cheapest ticket starting at £545.

What is the cheapest month to fly from Southampton to State of Washington?

Our data shows that January tends to be the cheapest month to fly to State of Washington from Southampton. Users have commonly found prices around £554 for the month, but tickets can be as low as £322. Due to multiple factors, prepare for potentially higher prices in August.

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

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

What airport do you fly from for flights from Southampton to Washington?

Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to Washington. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

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

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

How can I find direct flights from Southampton to Washington?

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

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

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

£464+ Flights from Southampton to Washington

Cheap flight deals from Southampton to Washington

Round-trip from	£849
One-way from	£464
Popular in	August
Cheapest in	January
Average price	£723

KLM
23/8-30/8
3 total stops
53h 39m total
Southampton to Washington

Search Deals

Aer Lingus
7/9
1 total stop
29h 50m total
Southampton to Washington

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£73 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Southampton to Washington

Cheapest flights from Southampton to Washington
Explore the most affordable flight options available from Southampton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Sat 23/809:20SOU - SEA

2 stops19h 04mKLM

Sat 30/814:10SEA - SOU

1 stop34h 35mKLM

Deal found 9/7£849

Sat 23/817:35SOU - SEA

2 stops36h 32mVirgin Atlantic

Sat 30/815:15SEA - SOU

2 stops33h 30mVirgin Atlantic

Deal found 9/7£893

Sat 23/809:40SOU - SEA

1 stop16h 10mAer Lingus

Fri 29/800:46SEA - SOU

2 stops48h 24mAer Lingus

Deal found 9/7£933

Sat 23/809:40SOU - SEA

2 stops19h 00mMultiple Airlines

Sat 30/815:45SEA - SOU

3 stops33h 00mMultiple Airlines

Deal found 9/7£1,033

Best flights from Southampton to Washington
Discover carefully curated flight deals from Southampton to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Sat 23/809:20SOU - SEA

2 stops19h 04mKLM

Sat 30/814:10SEA - SOU

1 stop34h 35mKLM

Deal found 9/7£849

Sat 23/817:35SOU - SEA

2 stops36h 32mVirgin Atlantic

Sat 30/815:15SEA - SOU

2 stops33h 30mVirgin Atlantic

Deal found 9/7£893

Sat 23/809:40SOU - SEA

1 stop16h 10mAer Lingus

Fri 29/800:46SEA - SOU

2 stops48h 24mAer Lingus

Deal found 9/7£933

Sat 23/809:40SOU - SEA

2 stops19h 00mMultiple Airlines

Sat 30/815:45SEA - SOU

3 stops33h 00mMultiple Airlines

Deal found 9/7£1,033

Last-minute flights from Southampton to Washington
Discover last-minute flight deals from Southampton to Washington. Data last updated 11 July 2025 and is based on user searches.

Sat 23/809:20SOU - SEA

2 stops19h 04mKLM

Sat 30/814:10SEA - SOU

1 stop34h 35mKLM

Deal found 9/7£849

Sat 23/817:35SOU - SEA

2 stops36h 32mVirgin Atlantic

Sat 30/815:15SEA - SOU

2 stops33h 30mVirgin Atlantic

Deal found 9/7£893

Sat 23/809:40SOU - SEA

1 stop16h 10mAer Lingus

Fri 29/800:46SEA - SOU

2 stops48h 24mAer Lingus

Deal found 9/7£933

Sat 23/809:40SOU - SEA

2 stops19h 00mMultiple Airlines

Sat 30/815:45SEA - SOU

3 stops33h 00mMultiple Airlines

Deal found 9/7£1,033

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Sat 23/8

09:20-20:24

2 stops19h 04m

Seattle/Tacoma Intl

Sat 30/8

14:10-08:45

1 stop34h 35m

£849

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Sat 23/8

17:35-22:07

2 stops36h 32m

Seattle/Tacoma Intl

Sat 30/8

15:15-08:45

2 stops33h 30m

£893

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Sat 23/8

09:40-17:50

1 stop16h 10m

Seattle/Tacoma Intl

Fri 29/8

00:46-09:10

2 stops48h 24m

£933

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Sat 23/8

09:40-20:40

2 stops19h 00m

Seattle/Tacoma Intl

Sat 30/8

15:45-08:45

3 stops33h 00m

£1,033

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Sun 7/9

20:00-17:50

1 stop29h 50m

£464

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Best time to book a flight from Southampton to Washington

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

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Southampton to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Southampton to State of Washington (average of £622). Flying from Southampton to State of Washington 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.

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Southampton to Washington, such as KLM, Virgin Atlantic, andAer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,372 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Virgin Atlantic

7.4

Good

654 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,154 reviews

KLM

7.8

Good

1,372 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What airport do you fly from for flights from Southampton to Washington?
Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to Washington. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.
Can I find deals for flights from Southampton to Washington that include hotel bookings?
Yes. In addition to deals on Southampton to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Washington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Washington.
Can I find deals for business class flights from Southampton to Washington?
Yes. Cheapflights offers flight deals from Southampton to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Southampton to State of Washington?
Currently, January is the cheapest month in which you can book a flight from Southampton to State of Washington (average of £622). Flying from Southampton to State of Washington 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

State of Washington car hire

Seattle/Tacoma Intl Airport car hire

Wenatchee Pangborn Field Airport car hire

Spokane Airport car hire

Pasco Tri Cities Airport car hire

Bellingham Airport car hire

Pullman Moscow Regional Airport car hire

Yakima Air Terminal Airport car hire

Walla Walla Airport car hire

Kenmore Air Harbor Airport car hire

Seattle car hire

Bellingham car hire

Direct flights to United States

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Southampton today with Cheapflights!

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington from Southampton.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southampton to Washington, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington from Southampton today and book when prices fit your budget.

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Cheap flights from Southampton to Washington from £464

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 Washington

Keep the following information in mind while searching for Southampton to Washington flight deals. Data was last updated 11 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Southampton to Washington

Cheapest flights from Southampton to WashingtonExplore the most affordable flight options available from Southampton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Explore the most affordable flight options available from Southampton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Southampton to Washington

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Southampton to State of Washington?

Reviews of airlines servicing Washington

Read through reviews of airlines operating flights from Southampton to Washington, such as KLM, Virgin Atlantic, andAer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly from for flights from Southampton to Washington?

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

How can I find direct flights from Southampton to Washington?

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

What is the cheapest month to book a flight from Southampton to State of Washington?

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 Washington

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 Washington?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Southampton to Washington
Explore the most affordable flight options available from Southampton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.