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Cheap flights from District of Columbia to London from $451

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 5/14. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 pm - 5:15 pm
IAD
-
SOU
15h 45m
2 stops
Multiple Airlines Logo
9:25 am - 5:20 am
SOU
-
IAD
24h 55m
2 stops
$994Multiple Airlines
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
8:30 pm - 8:50 pm
IAD
-
SOU
19h 20m
3 stops
Multiple Airlines Logo
9:25 am - 5:20 am
SOU
-
IAD
24h 55m
2 stops
$1,065Multiple Airlines
Mon, Apr 27 - Fri, May 1
KLM Logo
6:10 pm - 8:45 am
IAD
-
SOU
9h 35m
1 stop
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,105KLM
Mon, Aug 24 - Mon, Sep 7
Delta Logo
5:40 pm - 8:45 am
IAD
-
SOU
10h 05m
1 stop
Delta Logo
9:05 am - 3:35 pm
SOU
-
IAD
11h 30m
1 stop
$1,106Delta
Tue, Aug 11 - Tue, Sep 1
KLM Logo
6:10 pm - 8:45 am
IAD
-
SOU
9h 35m
1 stop
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,108KLM
Mon, Aug 24 - Mon, Sep 7
KLM Logo
6:40 pm - 5:35 pm
IAD
-
SOU
17h 55m
2 stops
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,110KLM
Mon, Aug 24 - Mon, Sep 7
Delta Logo
7:00 am - 8:45 am
IAD
-
SOU
20h 45m
2 stops
Delta Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,111Delta
Tue, Aug 11 - Tue, Sep 1
KLM Logo
12:00 pm - 8:45 am
IAD
-
SOU
15h 45m
2 stops
KLM Logo
5:20 pm - 3:35 pm
SOU
-
IAD
27h 15m
1 stop
$1,113KLM
Mon, Aug 24 - Mon, Sep 7
Delta Logo
5:40 pm - 8:45 am
IAD
-
SOU
10h 05m
1 stop
Delta Logo
9:05 am - 6:33 pm
SOU
-
IAD
38h 28m
2 stops
$1,116Delta
Tue, Aug 11 - Mon, Aug 31
Multiple Airlines Logo
6:20 am - 8:05 am
DCA
-
SOU
20h 45m
2 stops
Multiple Airlines Logo
9:20 am - 10:02 am
SOU
-
DCA
29h 42m
2 stops
$1,265Multiple Airlines
Tue, Sep 1 - Fri, Sep 11

KLM flights from District of Columbia to Southampton

Our best KLM deals on District of Columbia to Southampton flight tickets
KLM
Aug 24
IAD6:10 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
SOU8:45 amSouthampton Eastleigh
Sep 7
SOU5:20 pmSouthampton Eastleigh
27h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,108
KLM
Aug 24
IAD12:00 pmWashington, D.C. Dulles Intl
15h 45m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 7
SOU5:20 pmSouthampton Eastleigh
27h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,113
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
$1,155

Aer Lingus flights from District of Columbia to Southampton

Our best Aer Lingus deals on District of Columbia to Southampton flight tickets
Aer Lingus
Sep 1
IAD5:15 pmWashington, D.C. Dulles Intl
18h 35m
1 stop
SOU4:50 pmSouthampton Eastleigh
Sep 11
SOU9:20 amSouthampton Eastleigh
16h 00m
2 stops
IAD8:20 pmWashington, D.C. Dulles Intl
$1,276
Aer Lingus
Aug 20
IAD5:15 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
SOU8:40 amSouthampton Eastleigh
Aug 31
SOU8:00 pmSouthampton Eastleigh
24h 45m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
$1,316
Aer Lingus
May 10
IAD5:15 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
SOU8:40 amSouthampton Eastleigh
May 16
SOU8:00 pmSouthampton Eastleigh
24h 45m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
$1,331

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated April 11, 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

Cheapest round-trip

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 4/27

8:30 pm-5:15 pm

2 stops15h 45m

Southampton Eastleigh

Fri 5/1

9:25 am-5:20 am

2 stops24h 55m

$994

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 4/27

8:30 pm-8:50 pm

3 stops19h 20m

Southampton Eastleigh

Fri 5/1

9:25 am-5:20 am

2 stops24h 55m

$1,065

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

6:10 pm-8:45 am

1 stop9h 35m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,105
Quickest round-trip

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 8/11

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Tue 9/1

9:05 am-3:35 pm

1 stop11h 30m

$1,106

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

6:10 pm-8:45 am

1 stop9h 35m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,108

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

6:40 pm-5:35 pm

2 stops17h 55m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,110

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 8/11

7:00 am-8:45 am

2 stops20h 45m

Southampton Eastleigh

Tue 9/1

5:20 pm-3:35 pm

1 stop27h 15m

$1,111

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 8/24

12:00 pm-8:45 am

2 stops15h 45m

Southampton Eastleigh

Mon 9/7

5:20 pm-3:35 pm

1 stop27h 15m

$1,113

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 8/11

5:40 pm-8:45 am

1 stop10h 05m

Southampton Eastleigh

Mon 8/31

9:05 am-6:33 pm

2 stops38h 28m

$1,116

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 9/1

6:20 am-8:05 am

2 stops20h 45m

Southampton Eastleigh

Fri 9/11

9:20 am-10:02 am

2 stops29h 42m

$1,265

Flights are sorted by cheapest round-trip 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 and Delta are the most popular carriers operating from District of Columbia to Southampton Eastleigh

What airlines fly to Southampton?

British Airways, United Airlines and American 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 55% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 19 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 25m

Direct flights

None
The fastest flight from District of Columbia to Southampton takes 9h 25m
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

Frequently asked questions about flying from District of Columbia to Southampton

  • 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 refreshed on a daily basis.

  • How many operators does momondo search for flights from District of Columbia to Southampton Eastleigh Airport?

  • How old do you have to be to fly from District of Columbia 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 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.

Best airlines flying from District of Columbia to Southampton

Compare and see reviews for airlines that fly from District of Columbia to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $789Free CancellationRating
7.2
1,502 reviews
Search Aer Lingus flights

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

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

momondo does allow users to show only those flights to Southampton from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Southampton from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from District of Columbia to Southampton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southampton and let you know when they change.

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