What is the cheapest airline that flies from Washington to Southampton Eastleigh?

Delta and Aer Lingus are the most popular carriers operating from Washington to Southampton Eastleigh

How long does it take to fly to Southampton?

Average flight duration from State of Washington to Southampton depends on which airport you fly into and out of. Flying from Seattle to London Heathrow Airport is 9h 20m on average, while flying from Bellingham to London Heathrow Airport is 12h 50m on average. London Heathrow Airport is the most popular airport in Southampton.

What airlines fly to Southampton?

British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to Southampton from State of Washington according to our data. British Airways is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 14 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington to Southampton Eastleigh Airport?

Prices for flights from Washington to Southampton Eastleigh Airport are updated daily.

How many operators does momondo search for flights from Washington to Southampton Eastleigh Airport?

As of October 2025, there is 1 operator available to choose from for flights from Washington to Southampton Eastleigh Airport.

How old do you have to be to fly from Washington to Southampton Eastleigh Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Southampton Eastleigh Airport.

What documentation or ID do you need to fly to Southampton Eastleigh Airport?

The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$389 Cheap Flights from Washington to Southampton in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Washington to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 5:00 pmGEG-SOU

26h 30m2 stops

5:30 pm - 9:03 pmSOU-GEG

35h 33m2 stops

$840Delta

Find Deal

Thu, Feb 26 - Mon, Mar 2

6:50 pm - 8:00 pmSEA-SOU

17h 10m2 stops

9:30 am - 6:20 pmSOU-SEA

16h 50m1 stop

$2,213British Airways

Find Deal

Sun, Feb 15 - Fri, Feb 20

6:50 pm - 8:20 pmSEA-SOU

17h 30m2 stops

9:30 am - 6:20 pmSOU-SEA

16h 50m1 stop

$2,255British Airways

Find Deal

Sun, Nov 9 - Sun, Nov 23

1:30 pm - 4:20 pmSEA-SOU

18h 50m2 stops

9:30 am - 7:20 pmSOU-SEA

16h 50m1 stop

$2,285British Airways

Find Deal

Sun, Oct 19 - Sun, Oct 26

8:05 pm - 7:40 pmSEA-SOU

15h 35m1 stop

8:25 pm - 4:55 pmSOU-SEA

28h 30m2 stops

$2,399British Airways

Find Deal

Sun, Dec 28 - Sun, Jan 11

8:05 pm - 7:40 pmSEA-SOU

15h 35m1 stop

8:00 pm - 4:55 pmSOU-SEA

28h 55m2 stops

$3,224British Airways

Find Deal

Sun, Dec 21 - Sun, Jan 4

8:05 pm - 7:40 pmSEA-SOU

15h 35m1 stop

7:55 pm - 4:55 pmSOU-SEA

29h 00m2 stops

$3,844British Airways

Find Deal

Mon, Dec 22 - Fri, Jan 2

6:50 pm - 7:30 pmSEA-SOU

16h 40m2 stops

9:30 am - 6:20 pmSOU-SEA

16h 50m1 stop

$4,445British Airways

Find Deal

Thu, Dec 18 - Fri, Jan 2

6:50 pm - 8:20 pmSEA-SOU

17h 30m2 stops

6:25 pm - 4:55 pmSOU-SEA

30h 30m3 stops

$4,638British Airways

Find Deal

Sun, Dec 21 - Sun, Jan 4

8:05 pm - 7:40 pmSEA-SOU

15h 35m1 stop

6:25 pm - 4:55 pmSOU-SEA

30h 30m3 stops

$10,299British Airways

Find Deal

Sun, Dec 21 - Sun, Jan 4

British Airways flights from State of Washington to Southampton

Our best British Airways deals on State of Washington to Southampton flight tickets

British Airways

Feb 15

SEA6:50 pmSeattle/Tacoma Intl

17h 10m

2 stops

SOU8:00 pmSouthampton Eastleigh

Feb 20

SOU9:30 amSouthampton Eastleigh

16h 50m

1 stop

SEA6:20 pmSeattle/Tacoma Intl

$2,213

Find similar

British Airways

Nov 9

SEA6:50 pmSeattle/Tacoma Intl

17h 30m

2 stops

SOU8:20 pmSouthampton Eastleigh

Nov 23

SOU9:30 amSouthampton Eastleigh

16h 50m

1 stop

SEA6:20 pmSeattle/Tacoma Intl

$2,255

Find similar

British Airways

Oct 19

SEA1:30 pmSeattle/Tacoma Intl

18h 50m

2 stops

SOU4:20 pmSouthampton Eastleigh

Oct 26

SOU9:30 amSouthampton Eastleigh

16h 50m

1 stop

SEA7:20 pmSeattle/Tacoma Intl

$2,285

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SpokaneSouthampton

GEG - SOU

GEGSOU

Spokane

Thu 2/26

6:30 am-5:00 pm

2 stops26h 30m

Southampton Eastleigh

Mon 3/2

5:30 pm-9:03 pm

2 stops35h 33m

$840

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 2/15

6:50 pm-8:00 pm

2 stops17h 10m

Southampton Eastleigh

Fri 2/20

9:30 am-6:20 pm

1 stop16h 50m

$2,213

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 11/9

6:50 pm-8:20 pm

2 stops17h 30m

Southampton Eastleigh

Sun 11/23

9:30 am-6:20 pm

1 stop16h 50m

$2,255

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 10/19

1:30 pm-4:20 pm

2 stops18h 50m

Southampton Eastleigh

Sun 10/26

9:30 am-7:20 pm

1 stop16h 50m

$2,285

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 12/28

8:05 pm-7:40 pm

1 stop15h 35m

Southampton Eastleigh

Sun 1/11

8:25 pm-4:55 pm

2 stops28h 30m

$2,399

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 12/21

8:05 pm-7:40 pm

1 stop15h 35m

Southampton Eastleigh

Sun 1/4

8:00 pm-4:55 pm

2 stops28h 55m

$3,224

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Mon 12/22

8:05 pm-7:40 pm

1 stop15h 35m

Southampton Eastleigh

Fri 1/2

7:55 pm-4:55 pm

2 stops29h 00m

$3,844

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Thu 12/18

6:50 pm-7:30 pm

2 stops16h 40m

Southampton Eastleigh

Fri 1/2

9:30 am-6:20 pm

1 stop16h 50m

$4,445

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 12/21

6:50 pm-8:20 pm

2 stops17h 30m

Southampton Eastleigh

Sun 1/4

6:25 pm-4:55 pm

3 stops30h 30m

$4,638

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

Sun 12/21

8:05 pm-7:40 pm

1 stop15h 35m

Southampton Eastleigh

Sun 1/4

6:25 pm-4:55 pm

3 stops30h 30m

$10,299

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Southampton?

On average, the least expensive day to fly to Southampton from State of Washington is on a Saturday. momondo users have found tickets for Saturday departures for as low as $944. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Southampton for around $1,316.

What is the cheapest time of day to depart on your flight to Southampton?

Flying to Southampton from State of Washington at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,075 when looking at flights departing at noon. Flights to Southampton are more costly in the evening, with an average ticket price of $1,182. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on State of Washington to Southampton flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Southampton flight.

Cheap State of Washington to Southampton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Southampton

Direct flights	None

There are no direct flights from State of Washington to Southampton. There are no popular flight routes from State of Washington to Southampton.

Search flight deals

When did momondo last update prices for flights from Washington to Southampton Eastleigh Airport?
Prices for flights from Washington to Southampton Eastleigh Airport are updated daily.
How many operators does momondo search for flights from Washington to Southampton Eastleigh Airport?
As of October 2025, there is 1 operator available to choose from for flights from Washington to Southampton Eastleigh Airport.
How old do you have to be to fly from Washington to Southampton Eastleigh Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Southampton Eastleigh Airport.
What documentation or ID do you need to fly to Southampton Eastleigh Airport?
The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Southampton

Compare and see reviews for airlines that fly from State of Washington to Southampton with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $840	Free Cancellation	Rating 7.7 1,399 reviews		Search KLM flights

Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Southampton with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Southampton flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Southampton?

Once all potential Washington to Southampton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Southampton right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Southampton, momondo offers a useful price alert feature which will track prices for flights to Southampton from Washington and alert you when they change.

An easier way to manage your Southampton trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 11/8

Sat 11/15

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airports servicing England

Popular cities in the United Kingdom

Flights to Londonfrom $315

Flights to Manchesterfrom $364

Flights to Edinburghfrom $412

Flights to Glasgowfrom $398

Flights to Birminghamfrom $400

Flights to Newcastle upon Tynefrom $492

Flights to Belfastfrom $470

Flights to Bristolfrom $460

Flights to Invernessfrom $423

Flights to Liverpoolfrom $470

Flights to Aberdeenfrom $478

Flights to Leedsfrom $471

Cheap flights from Washington to London from $389

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to London departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington to London

Cheap round-trip flights

Cheap one-way flights

British Airways flights from State of Washington to Southampton

Our best British Airways deals on State of Washington to Southampton flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from State of Washington to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Southampton?

What is the cheapest time of day to depart on your flight to Southampton?

Can stopping save me money on State of Washington to Southampton flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Southampton flight.

What is the cheapest airline that flies from Washington to Southampton Eastleigh?

Delta and Aer Lingus are the most popular carriers operating from Washington to Southampton Eastleigh

What airlines fly to Southampton?

How long does it take to fly to Southampton?

Cheap State of Washington to Southampton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Southampton

Direct flights

When did momondo last update prices for flights from Washington to Southampton Eastleigh Airport?

How many operators does momondo search for flights from Washington to Southampton Eastleigh Airport?

How old do you have to be to fly from Washington to Southampton Eastleigh Airport?

What documentation or ID do you need to fly to Southampton Eastleigh Airport?

Best airlines flying from State of Washington to Southampton

Compare and see reviews for airlines that fly from State of Washington to Southampton with momondo

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Southampton?

Can I find flights from Washington to Southampton with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Southampton?

I’m not ready to book a flight from Washington to Southampton right now. Can momondo alert me if prices change?

An easier way to manage your Southampton trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Airports servicing England