What airlines fly to Southampton?

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Southampton from Washington, D.C. according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 18 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington, D.C. to Southampton Eastleigh?

Aer Lingus, KLM, and Delta are the most popular carriers operating from Washington, D.C. to Southampton Eastleigh

How long does it take to fly to Southampton?

Average flight duration from Washington, D.C. to Southampton depends on which airport you fly into and out of. Flying from Baltimore to London Heathrow Airport is 7h 05m on average, while flying from Washington, D.C. to London Heathrow Airport is 8h 12m on average. London Heathrow Airport is the most popular airport in Southampton.

When did momondo last update prices for flights from Washington, D.C. to Southampton Eastleigh Airport?

Prices for flights from Washington, D.C. to Southampton Eastleigh Airport were last updated today.

How many operators does momondo search for flights from Washington, D.C. to Southampton Eastleigh Airport?

The number of operators available for flights from Washington, D.C. to Southampton Eastleigh Airport is 1 as of May 2026.

How old do you have to be to fly from Washington, D.C. 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 Washington, D.C. 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.

$434 Cheap Flights from Washington, D.C. to Southampton in 2026

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Find the cheapest flights from Washington, D.C. to London

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 7:30 pm

DCA

SOU

32h 30m

3 stops

3:35 pm - 12:00 pm

SOU

DCA

25h 25m

3 stops

$829Multiple Airlines

lun., jun. 1 - mié., jun. 17

6:00 am - 7:30 pm

DCA

SOU

32h 30m

3 stops

3:35 pm - 10:18 am

SOU

DCA

23h 43m

2 stops

$853Multiple Airlines

lun., jun. 1 - mié., jun. 17

12:45 pm - 7:30 pm

DCA

SOU

25h 45m

3 stops

3:35 pm - 12:00 pm

SOU

DCA

25h 25m

3 stops

$892Multiple Airlines

lun., jun. 1 - mié., jun. 17

8:18 am - 7:30 pm

IAD

SOU

30h 12m

3 stops

3:35 pm - 11:11 am

SOU

IAD

24h 36m

3 stops

$894Multiple Airlines

lun., jun. 1 - mié., jun. 17

5:15 pm - 8:35 am

IAD

SOU

10h 20m

1 stop

9:20 am - 7:15 pm

SOU

IAD

14h 55m

1 stop

$1,035Aer Lingus

sáb., jun. 6 - dom., jun. 14

6:10 pm - 5:35 pm

IAD

SOU

18h 25m

1 stop

9:05 am - 3:35 pm

SOU

IAD

11h 30m

1 stop

$1,102KLM

lun., ago. 17 - mar., sep. 1

6:10 pm - 5:35 pm

IAD

SOU

18h 25m

1 stop

5:20 pm - 3:35 pm

SOU

IAD

27h 15m

1 stop

$1,103KLM

lun., ago. 24 - lun., sep. 7

8:28 am - 8:45 am

IAD

SOU

19h 17m

2 stops

9:05 am - 10:59 pm

SOU

IAD

18h 54m

2 stops

$1,116Virgin Atlantic

lun., ago. 17 - mar., sep. 1

6:10 pm - 5:00 pm

BWI

SOU

17h 50m

2 stops

8:40 am - 11:46 pm

SOU

BWI

20h 06m

2 stops

$1,117Delta

dom., nov. 1 - mié., nov. 18

6:10 pm - 5:00 pm

BWI

SOU

18h 50m

2 stops

5:30 pm - 6:46 pm

SOU

BWI

30h 16m

2 stops

$1,167Delta

vie., oct. 30 - mar., nov. 17

Delta flights from Washington, D.C. to Southampton

Our best Delta deals on Washington, D.C. to Southampton flight tickets

Delta

Aug 2

IAD5:40 pmWashington, D.C. Dulles Intl

10h 05m

1 stop

SOU8:45 amSouthampton Eastleigh

Oct 15

SOU9:05 amSouthampton Eastleigh

11h 30m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,117

Delta

Aug 2

IAD8:27 amWashington, D.C. Dulles Intl

19h 18m

2 stops

SOU8:45 amSouthampton Eastleigh

Oct 13

SOU5:20 pmSouthampton Eastleigh

27h 15m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,122

Delta

Aug 5

IAD6:10 pmWashington, D.C. Dulles Intl

18h 25m

1 stop

SOU5:35 pmSouthampton Eastleigh

Oct 15

SOU9:05 amSouthampton Eastleigh

17h 07m

2 stops

IAD9:12 pmWashington, D.C. Dulles Intl

$1,127

KLM flights from Washington, D.C. to Southampton

Our best KLM deals on Washington, D.C. to Southampton flight tickets

KLM

Aug 17

IAD6:10 pmWashington, D.C. Dulles Intl

18h 25m

1 stop

SOU5:35 pmSouthampton Eastleigh

Sep 1

SOU9:05 amSouthampton Eastleigh

11h 30m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,102

KLM

Aug 24

IAD6:10 pmWashington, D.C. Dulles Intl

18h 25m

1 stop

SOU5:35 pmSouthampton Eastleigh

Sep 7

SOU5:20 pmSouthampton Eastleigh

27h 15m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,103

KLM

Aug 24

IAD6:10 pmWashington, D.C. Dulles Intl

18h 25m

1 stop

SOU5:35 pmSouthampton Eastleigh

Sep 7

SOU5:20 pmSouthampton Eastleigh

27h 15m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$1,104

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

lun. 6/1

6:00 am-7:30 pm

3 stops32h 30m

Southampton Eastleigh

mié. 6/17

3:35 pm-12:00 pm

3 stops25h 25m

$829

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

lun. 6/1

6:00 am-7:30 pm

3 stops32h 30m

Southampton Eastleigh

mié. 6/17

3:35 pm-10:18 am

2 stops23h 43m

$853

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

lun. 6/1

12:45 pm-7:30 pm

3 stops25h 45m

Southampton Eastleigh

mié. 6/17

3:35 pm-12:00 pm

3 stops25h 25m

$892

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

lun. 6/1

8:18 am-7:30 pm

3 stops30h 12m

Southampton Eastleigh

mié. 6/17

3:35 pm-11:11 am

3 stops24h 36m

$894

Quickest round-trip

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

sáb. 6/6

5:15 pm-8:35 am

1 stop10h 20m

Southampton Eastleigh

dom. 6/14

9:20 am-7:15 pm

1 stop14h 55m

$1,035

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

lun. 8/17

6:10 pm-5:35 pm

1 stop18h 25m

Southampton Eastleigh

mar. 9/1

9:05 am-3:35 pm

1 stop11h 30m

$1,102

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

lun. 8/24

6:10 pm-5:35 pm

1 stop18h 25m

Southampton Eastleigh

lun. 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,103

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

lun. 8/17

8:28 am-8:45 am

2 stops19h 17m

Southampton Eastleigh

mar. 9/1

9:05 am-10:59 pm

2 stops18h 54m

$1,116

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

dom. 11/1

6:10 pm-5:00 pm

2 stops17h 50m

Southampton Eastleigh

mié. 11/18

8:40 am-11:46 pm

2 stops20h 06m

$1,117

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

vie. 10/30

6:10 pm-5:00 pm

2 stops18h 50m

Southampton Eastleigh

mar. 11/17

5:30 pm-6:46 pm

2 stops30h 16m

$1,167

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 Washington, D.C. 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

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Other information

Can stopping save me money on Washington, D.C. to Southampton flights?

You could potentially save up to 42% on your flight if you consider stops on a Washington, D.C. to Southampton flight.

When to book flights from Washington, D.C. to Southampton

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

Estimated round-trip price

Cheap Washington, D.C. to Southampton (WAS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Southampton

Fastest flight time	9h 55m
Direct flights	None

The fastest flight from Washington, D.C. to Southampton takes 9h 55m

There are no direct flights from Washington, D.C. to Southampton. There are no popular flight routes from Washington, D.C. to Southampton.

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Frequently asked questions about flying from Washington, D.C. to Southampton

How far is Washington, D.C. to Southampton Eastleigh by plane?
Washington, D.C. and Southampton Eastleigh are 3622.6 mi apart from one another. A reasonable flight in good conditions will take 9h 55m.
When did momondo last update prices for flights from Washington, D.C. to Southampton Eastleigh Airport?
Prices for flights from Washington, D.C. to Southampton Eastleigh Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Southampton Eastleigh Airport?
The number of operators available for flights from Washington, D.C. to Southampton Eastleigh Airport is 1 as of May 2026.
How old do you have to be to fly from Washington, D.C. 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 Washington, D.C. 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.

Best airlines flying from Washington, D.C. to Southampton

Compare and see reviews for airlines that fly from Washington, D.C. to Southampton with momondo

Airline	Rating	Free Cancellation	Price
Aer Lingus	PriceFrom $789	Free Cancellation	Rating 7.3 1,553 reviews		Search Aer Lingus flights

Portsmouth

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Why should I use momondo to find a flight deal from Washington, D.C. to Southampton?

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

Can I find flights from Washington, D.C. to Southampton with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Southampton on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Southampton?

Once all potential Washington, D.C. 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, D.C. to Southampton right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Southampton flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Washington, D.C. to London from $434

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, D.C. to London departing on 8/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Washington, D.C. to Southampton

Our best Delta deals on Washington, D.C. to Southampton flight tickets

KLM flights from Washington, D.C. to Southampton

Our best KLM deals on Washington, D.C. to Southampton flight tickets

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How to get the cheapest flight ticket from Washington, D.C. to Southampton

Can stopping save me money on Washington, D.C. to Southampton flights?

What is the cheapest airline that flies from Washington, D.C. to Southampton Eastleigh?

What airlines fly to Southampton?

How long does it take to fly to Southampton?

When to book flights from Washington, D.C. to Southampton

Cheap Washington, D.C. to Southampton (WAS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Southampton

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Southampton

Best airlines flying from Washington, D.C. to Southampton

Compare and see reviews for airlines that fly from Washington, D.C. to Southampton with momondo

Traveling to a place near London?

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