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Cheap flights from District of Columbia to London from $445

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 6/1. 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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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.
Aer Lingus Logo
8:25 pm - 7:30 pm
IAD
-
SOU
18h 05m1 stop
Aer Lingus Logo
9:10 am - 6:55 pm
SOU
-
IAD
14h 45m1 stop
$1,277Aer Lingus
Mon, Jun 22 - Fri, Jul 17
Aer Lingus Logo
8:25 pm - 4:35 pm
IAD
-
SOU
15h 10m1 stop
Aer Lingus Logo
8:00 pm - 3:50 pm
SOU
-
IAD
24h 50m1 stop
$1,309Aer Lingus
Fri, May 29 - Fri, Jun 12
British Airways Logo
5:05 pm - 8:45 am
IAD
-
SOU
10h 40m1 stop
British Airways Logo
8:40 am - 3:35 pm
SOU
-
IAD
35h 55m2 stops
$4,060British Airways
Fri, Jan 23 - Tue, Jan 27
British Airways Logo
9:45 pm - 4:20 pm
IAD
-
SOU
13h 35m2 stops
British Airways Logo
12:25 pm - 8:30 pm
SOU
-
IAD
12h 05m1 stop
$4,068British Airways
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
7:15 pm - 2:45 pm
IAD
-
SOU
14h 30m2 stops
British Airways Logo
9:10 am - 6:55 pm
SOU
-
IAD
14h 45m1 stop
$4,086British Airways
Tue, Mar 31 - Sat, Apr 4
Delta Logo
6:05 pm - 5:00 pm
IAD
-
SOU
17h 55m1 stop
Delta Logo
8:50 am - 5:05 pm
SOU
-
IAD
12h 15m1 stop
$4,344Delta
Tue, Feb 24 - Thu, Mar 12
British Airways Logo
5:05 pm - 1:40 pm
IAD
-
SOU
15h 35m2 stops
British Airways Logo
3:00 pm - 3:35 pm
SOU
-
IAD
29h 35m2 stops
$4,432British Airways
Fri, Jan 23 - Tue, Jan 27
British Airways Logo
5:05 pm - 1:40 pm
IAD
-
SOU
15h 35m2 stops
British Airways Logo
3:00 pm - 3:35 pm
SOU
-
IAD
29h 35m2 stops
$4,433British Airways
Fri, Jan 23 - Tue, Jan 27
British Airways Logo
9:45 pm - 5:30 pm
IAD
-
SOU
14h 45m2 stops
British Airways Logo
8:50 pm - 4:35 pm
SOU
-
IAD
23h 45m2 stops
$4,466British Airways
Tue, Mar 3 - Tue, Mar 10
British Airways Logo
10:25 pm - 5:40 pm
IAD
-
SOU
14h 15m2 stops
British Airways Logo
10:15 am - 8:20 pm
SOU
-
IAD
15h 05m2 stops
$4,482British Airways
Tue, Mar 31 - Sat, Apr 4

British Airways flights from District of Columbia to Southampton

Our best British Airways deals on District of Columbia to Southampton flight tickets
British Airways
Jan 23
IAD5:05 pmWashington, D.C. Dulles Intl
10h 40m
1 stop
SOU8:45 amSouthampton Eastleigh
Jan 27
SOU8:40 amSouthampton Eastleigh
35h 55m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
$4,060
Find similar
British Airways
Mar 3
IAD9:45 pmWashington, D.C. Dulles Intl
13h 35m
2 stops
SOU4:20 pmSouthampton Eastleigh
Mar 10
SOU12:25 pmSouthampton Eastleigh
12h 05m
1 stop
IAD8:30 pmWashington, D.C. Dulles Intl
$4,068
Find similar
British Airways
Mar 31
IAD7:15 pmWashington, D.C. Dulles Intl
14h 30m
2 stops
SOU2:45 pmSouthampton Eastleigh
Apr 4
SOU9:10 amSouthampton Eastleigh
14h 45m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
$4,086
Find similar

Aer Lingus flights from District of Columbia to Southampton

Our best Aer Lingus deals on District of Columbia to Southampton flight tickets
Aer Lingus
Jun 22
IAD8:25 pmWashington, D.C. Dulles Intl
18h 05m
1 stop
SOU7:30 pmSouthampton Eastleigh
Jul 17
SOU9:10 amSouthampton Eastleigh
14h 45m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
$1,277
Find similar
Aer Lingus
May 29
IAD8:25 pmWashington, D.C. Dulles Intl
15h 10m
1 stop
SOU4:35 pmSouthampton Eastleigh
Jun 12
SOU8:00 pmSouthampton Eastleigh
24h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$1,309
Find similar

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 December 28, 2025.
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

Mon 6/22

8:25 pm-7:30 pm

1 stop18h 05m

Southampton Eastleigh

Fri 7/17

9:10 am-6:55 pm

1 stop14h 45m

$1,277

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 5/29

8:25 pm-4:35 pm

1 stop15h 10m

Southampton Eastleigh

Fri 6/12

8:00 pm-3:50 pm

1 stop24h 50m

$1,309

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 1/23

5:05 pm-8:45 am

1 stop10h 40m

Southampton Eastleigh

Tue 1/27

8:40 am-3:35 pm

2 stops35h 55m

$4,060

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 3/3

9:45 pm-4:20 pm

2 stops13h 35m

Southampton Eastleigh

Tue 3/10

12:25 pm-8:30 pm

1 stop12h 05m

$4,068

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 3/31

7:15 pm-2:45 pm

2 stops14h 30m

Southampton Eastleigh

Sat 4/4

9:10 am-6:55 pm

1 stop14h 45m

$4,086

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 2/24

6:05 pm-5:00 pm

1 stop17h 55m

Southampton Eastleigh

Thu 3/12

8:50 am-5:05 pm

1 stop12h 15m

$4,344

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 1/23

5:05 pm-1:40 pm

2 stops15h 35m

Southampton Eastleigh

Tue 1/27

3:00 pm-3:35 pm

2 stops29h 35m

$4,432

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 1/23

5:05 pm-1:40 pm

2 stops15h 35m

Southampton Eastleigh

Tue 1/27

3:00 pm-3:35 pm

2 stops29h 35m

$4,433

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 3/3

9:45 pm-5:30 pm

2 stops14h 45m

Southampton Eastleigh

Tue 3/10

8:50 pm-4:35 pm

2 stops23h 45m

$4,466

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 3/31

10:25 pm-5:40 pm

2 stops14h 15m

Southampton Eastleigh

Sat 4/4

10:15 am-8:20 pm

2 stops15h 05m

$4,482

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 day to depart on your flight to Southampton?

On average, the least expensive day to fly to Southampton from District of Columbia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $859. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from District of Columbia to Southampton for around $1,103.

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

Flying to Southampton from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $936 when looking at flights departing in the afternoon. Flights to Southampton are more costly in the morning, with an average ticket price of $1,201. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

10h 40m

Direct flights

None
The fastest flight from District of Columbia to Southampton takes 10h 40m
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 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 $677Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
DeltaPriceFrom $785Free CancellationRating
7.9
8,022 reviews
Search Delta 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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