What airlines fly to Southampton?

British Airways, Delta and Virgin Atlantic are the top three most popular airlines that fly to Southampton from Seattle according to our data. British Airways is the first choice among our users, with 38% 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 Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport.

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

The travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$781 Cheap Flights from Seattle to Southampton in 2025/26

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Find the cheapest flights from Seattle to London

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One-way

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Cheap round-trip flights

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2:05 pm - 5:00 pmSEA-SOU

18h 55m1 stop

5:35 pm - 3:50 pmSOU-SEA

30h 15m1 stop

$912Virgin Atlantic

Find Deal

mié., abr. 29 - dom., may. 3

5:45 am - 5:00 pmSEA-SOU

27h 15m2 stops

9:20 am - 3:50 pmSOU-SEA

14h 30m1 stop

$916Virgin Atlantic

Find Deal

mié., abr. 29 - dom., may. 3

3:35 pm - 5:00 pmSEA-SOU

17h 25m2 stops

9:20 am - 10:16 pmSOU-SEA

20h 56m2 stops

$926Delta

Find Deal

mié., abr. 29 - dom., may. 3

3:15 pm - 5:00 pmSEA-SOU

17h 45m2 stops

5:35 pm - 10:24 amSOU-SEA

24h 49m2 stops

$927Virgin Atlantic

Find Deal

mié., abr. 29 - dom., may. 3

5:35 pm - 5:00 pmSEA-SOU

15h 25m1 stop

5:35 pm - 3:50 pmSOU-SEA

30h 15m1 stop

$1,015Virgin Atlantic

Find Deal

mié., abr. 29 - dom., may. 3

3:15 pm - 8:45 amSEA-SOU

33h 30m2 stops

5:35 pm - 3:50 pmSOU-SEA

30h 15m1 stop

$1,020Virgin Atlantic

Find Deal

mié., abr. 29 - dom., may. 3

8:25 am - 8:45 amSEA-SOU

16h 20m2 stops

9:20 am - 10:16 pmSOU-SEA

20h 56m2 stops

$1,029Delta

Find Deal

mié., abr. 29 - dom., may. 3

3:05 pm - 8:05 amSEA-SOU

33h 00m1 stop

8:40 am - 11:50 amSOU-SEA

35h 10m1 stop

$1,438Delta

Find Deal

mié., dic. 24 - mar., dic. 30

3:05 pm - 8:05 amSEA-SOU

33h 00m1 stop

8:40 am - 4:07 pmSOU-SEA

39h 27m2 stops

$1,448Delta

Find Deal

mié., dic. 24 - lun., dic. 29

6:50 pm - 8:10 amSEA-SOU

29h 20m2 stops

9:30 am - 6:20 pmSOU-SEA

16h 50m1 stop

$1,858British Airways

Find Deal

mar., nov. 25 - lun., dic. 1

Virgin Atlantic flights from Seattle to Southampton

Our best Virgin Atlantic deals on Seattle to Southampton flight tickets

Virgin Atlantic

Apr 29

SEA2:05 pmSeattle/Tacoma Intl

18h 55m

1 stop

SOU5:00 pmSouthampton Eastleigh

May 3

SOU5:35 pmSouthampton Eastleigh

30h 15m

1 stop

SEA3:50 pmSeattle/Tacoma Intl

$912

Find similar

Virgin Atlantic

Apr 29

SEA5:45 amSeattle/Tacoma Intl

27h 15m

2 stops

SOU5:00 pmSouthampton Eastleigh

May 3

SOU9:20 amSouthampton Eastleigh

14h 30m

1 stop

SEA3:50 pmSeattle/Tacoma Intl

$916

Find similar

Virgin Atlantic

Apr 29

SEA3:15 pmSeattle/Tacoma Intl

17h 45m

2 stops

SOU5:00 pmSouthampton Eastleigh

May 3

SOU5:35 pmSouthampton Eastleigh

24h 49m

2 stops

SEA10:24 amSeattle/Tacoma Intl

$927

Find similar

Delta flights from Seattle to Southampton

Our best Delta deals on Seattle to Southampton flight tickets

Delta

Apr 29

SEA3:35 pmSeattle/Tacoma Intl

17h 25m

2 stops

SOU5:00 pmSouthampton Eastleigh

May 3

SOU9:20 amSouthampton Eastleigh

20h 56m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$926

Find similar

Delta

Apr 29

SEA8:25 amSeattle/Tacoma Intl

16h 20m

2 stops

SOU8:45 amSouthampton Eastleigh

May 3

SOU9:20 amSouthampton Eastleigh

20h 56m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$1,029

Find similar

Delta

Dec 24

SEA3:05 pmSeattle/Tacoma Intl

33h 00m

1 stop

SOU8:05 amSouthampton Eastleigh

Dec 30

SOU8:40 amSouthampton Eastleigh

35h 10m

1 stop

SEA11:50 amSeattle/Tacoma Intl

$1,438

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

2:05 pm-5:00 pm

1 stop18h 55m

Southampton Eastleigh

dom. 5/3

5:35 pm-3:50 pm

1 stop30h 15m

$912

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

5:45 am-5:00 pm

2 stops27h 15m

Southampton Eastleigh

dom. 5/3

9:20 am-3:50 pm

1 stop14h 30m

$916

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

3:35 pm-5:00 pm

2 stops17h 25m

Southampton Eastleigh

dom. 5/3

9:20 am-10:16 pm

2 stops20h 56m

$926

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

3:15 pm-5:00 pm

2 stops17h 45m

Southampton Eastleigh

dom. 5/3

5:35 pm-10:24 am

2 stops24h 49m

$927

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

5:35 pm-5:00 pm

1 stop15h 25m

Southampton Eastleigh

dom. 5/3

5:35 pm-3:50 pm

1 stop30h 15m

$1,015

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

3:15 pm-8:45 am

2 stops33h 30m

Southampton Eastleigh

dom. 5/3

5:35 pm-3:50 pm

1 stop30h 15m

$1,020

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 4/29

8:25 am-8:45 am

2 stops16h 20m

Southampton Eastleigh

dom. 5/3

9:20 am-10:16 pm

2 stops20h 56m

$1,029

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 12/24

3:05 pm-8:05 am

1 stop33h 00m

Southampton Eastleigh

mar. 12/30

8:40 am-11:50 am

1 stop35h 10m

$1,438

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mié. 12/24

3:05 pm-8:05 am

1 stop33h 00m

Southampton Eastleigh

lun. 12/29

8:40 am-4:07 pm

2 stops39h 27m

$1,448

SeattleSouthampton

SEA - SOU

SEASOU

Seattle/Tacoma Intl

mar. 11/25

6:50 pm-8:10 am

2 stops29h 20m

Southampton Eastleigh

lun. 12/1

9:30 am-6:20 pm

1 stop16h 50m

$1,858

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle 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

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

On average, the least expensive day to fly to Southampton from Seattle 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 Seattle to Southampton for around $1,316.

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

Flying to Southampton from Seattle 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 Seattle to Southampton flights?

You could potentially save up to 26% on your flight if you consider stops on a Seattle to Southampton flight.

When to book flights from Seattle to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Southampton according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Southampton (SEA to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Southampton

Direct flights	None

There are no direct flights from Seattle to Southampton. There are no popular flight routes from Seattle to Southampton.

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How far is Seattle/Tacoma Intl to Southampton Eastleigh by plane?
A flight from Seattle/Tacoma Intl to Southampton Eastleigh will travel around 4779.5 mi. 14h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Southampton Eastleigh Airport.
What documentation or ID do you need to fly to Southampton Eastleigh Airport?
The travel and health documents you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Portsmouth

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Southampton from Seattle.

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

All flight searches from Seattle to Southampton on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Seattle 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 Seattle to Southampton right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Southampton from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.