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Cheap flights from District of Columbia to London from $345

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 9/7. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 10:15 am
IAD
-
SOU
32h 45m
2 stops
Multiple Airlines Logo
9:15 am - 3:45 pm
SOU
-
IAD
11h 30m
1 stop
$909Multiple Airlines
Mon, Sep 7 - Tue, Sep 22
Multiple Airlines Logo
8:30 pm - 10:15 am
IAD
-
SOU
32h 45m
2 stops
Multiple Airlines Logo
9:20 am - 3:45 pm
SOU
-
IAD
11h 25m
1 stop
$916Multiple Airlines
Mon, Oct 5 - Mon, Oct 12
Multiple Airlines Logo
8:30 pm - 12:25 pm
IAD
-
SOU
34h 55m
2 stops
Multiple Airlines Logo
9:20 am - 3:45 pm
SOU
-
IAD
11h 25m
1 stop
$918Multiple Airlines
Sat, Oct 10 - Sun, Oct 18
Multiple Airlines Logo
11:25 am - 4:50 pm
IAD
-
SOU
24h 25m
2 stops
Multiple Airlines Logo
9:20 am - 3:45 pm
SOU
-
IAD
11h 25m
1 stop
$941Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
7:40 pm - 8:40 am
IAD
-
SOU
32h 00m
2 stops
Multiple Airlines Logo
9:20 am - 3:35 pm
SOU
-
IAD
11h 15m
1 stop
$944Multiple Airlines
Tue, Nov 3 - Tue, Dec 1
Aer Lingus Logo
5:05 pm - 7:30 pm
IAD
-
SOU
21h 25m
1 stop
Aer Lingus Logo
9:20 am - 3:35 pm
SOU
-
IAD
11h 15m
1 stop
$961Aer Lingus
Tue, Nov 3 - Tue, Dec 1
Aer Lingus Logo
5:15 pm - 7:30 pm
IAD
-
SOU
21h 15m
1 stop
Aer Lingus Logo
9:15 am - 3:45 pm
SOU
-
IAD
11h 30m
1 stop
$966Aer Lingus
Mon, Sep 7 - Tue, Sep 22
KLM Logo
12:55 pm - 8:35 am
DCA
-
SOU
14h 40m
2 stops
KLM Logo
9:05 am - 8:35 pm
SOU
-
DCA
16h 30m
2 stops
$1,119KLM
Mon, Sep 7 - Tue, Sep 22
Delta Logo
10:15 am - 8:35 am
DCA
-
SOU
17h 20m
2 stops
Delta Logo
9:15 am - 11:02 pm
SOU
-
DCA
18h 47m
2 stops
$1,130Delta
Wed, Sep 2 - Wed, Sep 9
Delta Logo
12:27 pm - 8:10 am
DCA
-
SOU
14h 43m
2 stops
Delta Logo
8:40 am - 10:53 pm
SOU
-
DCA
19h 13m
2 stops
$1,147Delta
Tue, Nov 3 - Tue, Dec 1

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Aer Lingus flights from District of Columbia to Southampton

Our best Aer Lingus deals on District of Columbia to Southampton flight tickets
Aer Lingus
Nov 3
IAD5:05 pmWashington, D.C. Dulles Intl
21h 25m
1 stop
SOU7:30 pmSouthampton Eastleigh
Dec 1
SOU9:20 amSouthampton Eastleigh
11h 15m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$961
Aer Lingus
Sep 7
IAD5:15 pmWashington, D.C. Dulles Intl
21h 15m
1 stop
SOU7:30 pmSouthampton Eastleigh
Sep 22
SOU9:15 amSouthampton Eastleigh
11h 30m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
$966
Aer Lingus
Oct 10
IAD8:40 pmWashington, D.C. Dulles Intl
31h 00m
1 stop
SOU8:40 amSouthampton Eastleigh
Oct 18
SOU9:20 amSouthampton Eastleigh
11h 25m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
$1,024

KLM flights from District of Columbia to Southampton

Our best KLM deals on District of Columbia to Southampton flight tickets
KLM
Sep 6
IAD5:40 pmWashington, D.C. Dulles Intl
18h 10m
1 stop
SOU4:50 pmSouthampton Eastleigh
Sep 15
SOU9:05 amSouthampton Eastleigh
11h 30m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$1,115
KLM
Sep 7
DCA12:55 pmWashington, D.C. Reagan-National
14h 40m
2 stops
SOU8:35 amSouthampton Eastleigh
Sep 22
SOU9:05 amSouthampton Eastleigh
16h 30m
2 stops
DCA8:35 pmWashington, D.C. Reagan-National
$1,119
KLM
Sep 6
IAD11:10 amWashington, D.C. Dulles Intl
16h 25m
2 stops
SOU8:35 amSouthampton Eastleigh
Sep 15
SOU9:05 amSouthampton Eastleigh
19h 18m
2 stops
IAD11:23 pmWashington, D.C. Dulles Intl
$1,129

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 July 22, 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 9/7

8:30 pm-10:15 am

2 stops32h 45m

Southampton Eastleigh

Tue 9/22

9:15 am-3:45 pm

1 stop11h 30m

$909

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 10/5

8:30 pm-10:15 am

2 stops32h 45m

Southampton Eastleigh

Mon 10/12

9:20 am-3:45 pm

1 stop11h 25m

$916

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 10/10

8:30 pm-12:25 pm

2 stops34h 55m

Southampton Eastleigh

Sun 10/18

9:20 am-3:45 pm

1 stop11h 25m

$918

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 10/1

11:25 am-4:50 pm

2 stops24h 25m

Southampton Eastleigh

Mon 10/5

9:20 am-3:45 pm

1 stop11h 25m

$941

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 11/3

7:40 pm-8:40 am

2 stops32h 00m

Southampton Eastleigh

Tue 12/1

9:20 am-3:35 pm

1 stop11h 15m

$944

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 11/3

5:05 pm-7:30 pm

1 stop21h 25m

Southampton Eastleigh

Tue 12/1

9:20 am-3:35 pm

1 stop11h 15m

$961

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 9/7

5:15 pm-7:30 pm

1 stop21h 15m

Southampton Eastleigh

Tue 9/22

9:15 am-3:45 pm

1 stop11h 30m

$966
Quickest round-trip

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Mon 9/7

12:55 pm-8:35 am

2 stops14h 40m

Southampton Eastleigh

Tue 9/22

9:05 am-8:35 pm

2 stops16h 30m

$1,119

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Wed 9/2

10:15 am-8:35 am

2 stops17h 20m

Southampton Eastleigh

Wed 9/9

9:15 am-11:02 pm

2 stops18h 47m

$1,130

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Tue 11/3

12:27 pm-8:10 am

2 stops14h 43m

Southampton Eastleigh

Tue 12/1

8:40 am-10:53 pm

2 stops19h 13m

$1,147

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

Can stopping save me money on District of Columbia to Southampton flights?

You could potentially save up to 6% on your flight if you consider stops on a District of Columbia to Southampton flight.

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.
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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
7.3
1,678 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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