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Cheap flights from District of Columbia to London from £315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to London departing on 15/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from District of Columbia to London

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
19:05 - 08:50
IAD
-
SOU
9h 45m
1 stop
Delta Logo
08:50 - 17:05
SOU
-
IAD
12h 15m
1 stop
£573Delta
Fri, 13 Mar - Thu, 19 Mar
Delta Logo
19:05 - 08:50
IAD
-
SOU
9h 45m
1 stop
Delta Logo
08:50 - 00:27
SOU
-
IAD
19h 37m
2 stops
£580Delta
Fri, 13 Mar - Thu, 19 Mar
KLM Logo
17:40 - 08:35
IAD
-
SOU
9h 55m
1 stop
KLM Logo
09:05 - 15:35
SOU
-
IAD
11h 30m
1 stop
£584KLM
Thu, 9 Apr - Thu, 16 Apr
KLM Logo
19:05 - 17:00
IAD
-
SOU
17h 55m
1 stop
KLM Logo
17:20 - 15:35
SOU
-
IAD
27h 15m
1 stop
£585KLM
Thu, 19 Mar - Sun, 12 Apr
Delta Logo
12:16 - 08:35
DCA
-
SOU
15h 19m
2 stops
Delta Logo
17:20 - 19:55
SOU
-
DCA
31h 35m
2 stops
£594Delta
Tue, 31 Mar - Sun, 5 Apr
Delta Logo
17:05 - 16:50
DCA
-
SOU
18h 45m
2 stops
Delta Logo
17:20 - 16:35
SOU
-
DCA
28h 15m
2 stops
£595Delta
Sun, 29 Mar - Mon, 6 Apr
Delta Logo
17:40 - 08:35
IAD
-
SOU
9h 55m
1 stop
Delta Logo
17:20 - 15:35
SOU
-
IAD
27h 15m
1 stop
£625Delta
Tue, 31 Mar - Mon, 6 Apr
Aer Lingus Logo
22:00 - 15:35
IAD
-
SOU
13h 35m
1 stop
Aer Lingus Logo
09:30 - 20:30
SOU
-
IAD
15h 00m
1 stop
£648Aer Lingus
Tue, 10 Mar - Thu, 19 Mar
Multiple Airlines Logo
06:59 - 19:30
DCA
-
SOU
31h 31m
3 stops
Multiple Airlines Logo
07:50 - 21:48
SOU
-
DCA
18h 58m
3 stops
£839Multiple Airlines
Fri, 5 Jun - Sat, 20 Jun
Multiple Airlines Logo
16:20 - 19:30
DCA
-
SOU
22h 10m
2 stops
Multiple Airlines Logo
07:50 - 12:00
SOU
-
DCA
33h 10m
3 stops
£849Multiple Airlines
Fri, 5 Jun - Sat, 20 Jun

Delta flights from District of Columbia to Southampton

Our best Delta deals on District of Columbia to Southampton flight tickets
Delta
13 Mar
IAD19:05Washington, D.C. Dulles Intl
9h 45m
1 stop
SOU08:50Southampton Eastleigh
19 Mar
SOU08:50Southampton Eastleigh
12h 15m
1 stop
IAD17:05Washington, D.C. Dulles Intl
£573
Delta
13 Mar
IAD19:05Washington, D.C. Dulles Intl
9h 45m
1 stop
SOU08:50Southampton Eastleigh
19 Mar
SOU08:50Southampton Eastleigh
19h 37m
2 stops
IAD00:27Washington, D.C. Dulles Intl
£580
Delta
31 Mar
DCA12:16Washington, D.C. Reagan-National
15h 19m
2 stops
SOU08:35Southampton Eastleigh
5 Apr
SOU17:20Southampton Eastleigh
31h 35m
2 stops
DCA19:55Washington, D.C. Reagan-National
£594

KLM flights from District of Columbia to Southampton

Our best KLM deals on District of Columbia to Southampton flight tickets
KLM
9 Apr
IAD17:40Washington, D.C. Dulles Intl
9h 55m
1 stop
SOU08:35Southampton Eastleigh
16 Apr
SOU09:05Southampton Eastleigh
11h 30m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£584
KLM
19 Mar
IAD19:05Washington, D.C. Dulles Intl
17h 55m
1 stop
SOU17:00Southampton Eastleigh
12 Apr
SOU17:20Southampton Eastleigh
27h 15m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£585
KLM
19 Mar
IAD12:14Washington, D.C. Dulles Intl
16h 06m
2 stops
SOU08:20Southampton Eastleigh
12 Apr
SOU17:20Southampton Eastleigh
27h 15m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£673

momondo Fare Finder

 
Customise your flight search to find flights from District of Columbia to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 24 February 2026.
Use the filters below to find and compare flights from District of Columbia to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 13/3

19:05-08:50

1 stop9h 45m

Southampton Eastleigh

Thu 19/3

08:50-17:05

1 stop12h 15m

£573

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 13/3

19:05-08:50

1 stop9h 45m

Southampton Eastleigh

Thu 19/3

08:50-00:27

2 stops19h 37m

£580

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 9/4

17:40-08:35

1 stop9h 55m

Southampton Eastleigh

Thu 16/4

09:05-15:35

1 stop11h 30m

£584

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 19/3

19:05-17:00

1 stop17h 55m

Southampton Eastleigh

Sun 12/4

17:20-15:35

1 stop27h 15m

£585

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 31/3

12:16-08:35

2 stops15h 19m

Southampton Eastleigh

Sun 5/4

17:20-19:55

2 stops31h 35m

£594

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Sun 29/3

17:05-16:50

2 stops18h 45m

Southampton Eastleigh

Mon 6/4

17:20-16:35

2 stops28h 15m

£595

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 31/3

17:40-08:35

1 stop9h 55m

Southampton Eastleigh

Mon 6/4

17:20-15:35

1 stop27h 15m

£625

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 10/3

22:00-15:35

1 stop13h 35m

Southampton Eastleigh

Thu 19/3

09:30-20:30

1 stop15h 00m

£648

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 5/6

06:59-19:30

3 stops31h 31m

Southampton Eastleigh

Sat 20/6

07:50-21:48

3 stops18h 58m

£839

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 5/6

16:20-19:30

2 stops22h 10m

Southampton Eastleigh

Sat 20/6

07:50-12:00

3 stops33h 10m

£849

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from District of Columbia 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 airline that flies from District of Columbia to Southampton Eastleigh?

Aer Lingus, Delta, and KLM are the most popular carriers operating from District of Columbia to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, Virgin Atlantic and United Airlines are the top three most popular airlines that fly to Southampton from District of Columbia according to our data. British Airways is the first choice among our users, with 48% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 8 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

Cheap District of Columbia to Southampton flight deals and tips

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

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from District of Columbia to Southampton takes 9h 45m
There are no direct flights from District of Columbia to Southampton. There are no popular flight routes from District of Columbia to Southampton.
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Southampton Eastleigh Airport?

    Prices for flights from District of Columbia to Southampton Eastleigh Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Southampton Eastleigh Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Southampton Eastleigh Airport.

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

    The required travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southampton Eastleigh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Southampton?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to Southampton . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to Southampton with flexible booking policies on momondo?

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

How can momondo help me find flights from District of Columbia to Southampton?

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

Of course. momondo tracks the price of District of Columbia to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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