What are the cheapest airlines flying from Washington, D.C. to Southampton round-trip?

Cheapflights users have booked flights from Washington, D.C. to Southampton round-trip from $815. Other airlines that can offer you cheap pricing are Delta, from $820, and KLM, from $830. These flights start at 10% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. to Southampton one-way?

The cheapest airlines for a one-way flight from Washington, D.C. to Southampton are Aer Lingus ($445), Delta ($494), and KLM ($500).

What is the cheapest day to fly from Washington, D.C. to Southampton?

Travelers seeking maximum savings on their Washington, D.C. to Southampton flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Southampton ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Southampton when rainfall is around 1.0 in.

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular routes from Washington, D.C. to Southampton?

When deciding which route to take from Washington, D.C. to Southampton consider Washington, D.C. Dulles Intl - Southampton Eastleigh, Baltimore/Washington - Southampton Eastleigh or Washington, D.C. Reagan-National - Southampton Eastleigh as they are the most popular.

What is the cheapest day to fly round-trip from Washington, D.C. to Southampton?

Friday flights are found to be more expensive to fly from Washington, D.C. to Southampton. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Southampton.

How far in advance should I book a flight from Washington, D.C. to Southampton?

Travelers have found it’s best to book a flight 48 days in advance to save up to 37% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 48 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. to Southampton 1-2 weeks in advance for as low as $802, or $933 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. to Southampton?

Our data shows that January tends to be the cheapest month to fly to Southampton from Washington, D.C.. Users have commonly found prices around $741 for the month, but tickets can be as low as $385. Due to multiple factors, prepare for potentially higher prices in June.

What airport do you fly into for flights to Southampton from Washington, D.C.?

For a flight from Washington, D.C. to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 inbound flights from Washington, D.C. per day. 2 airlines have flights to Southampton Eastleigh from Washington, D.C. on a regular basis.

Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Southampton?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Southampton.

Can I find deals for business class flights from Washington, D.C. to Southampton?

Yes. Cheapflights offers flight deals from Washington, D.C. to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$279+ Flights from Washington, D.C. to Southampton

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Cheap flight deals from Washington, D.C. to Southampton

Round-trip from	$815 (Virgin Atlantic)
One-way from	$279 (Kiwi.com)
Popular in	June
Cheapest in	October
Average price	$1,022

From Washington, D.C. (WAS) to Southampton Eastleigh

Search Deals

One-way flight from Washington, D.C. (WAS) to Southampton Eastleigh

Search Deals

Highest demand for flights based on searches. 16% potential increase in price ($182 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Washington, D.C. to Southampton

Cheapest flights from Washington, D.C. to Southampton
Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Sun 9/145:25 pmIAD - SOU

1 stop10h 20mKLM

Mon 9/229:20 amSOU - IAD

1 stop11h 15mKLM

Deal found 7/1

$815

Fri 11/77:00 amDCA - SOU

2 stops20h 50mDelta

Tue 11/119:00 amSOU - DCA

2 stops18h 54mDelta

Deal found 6/30

$827

Wed 9/101:00 pmBWI - SOU

2 stops14h 45mKLM

Wed 9/249:20 amSOU - BWI

2 stops20h 08mKLM

Deal found 7/2

$830

Fri 8/155:20 pmIAD - SOU

1 stop10h 20mAer Lingus

Fri 8/228:00 pmSOU - IAD

1 stop24h 50mAer Lingus

Deal found 7/1

$906

Sun 9/288:17 pmIAD - SOU

2 stops15h 43mDelta

Sun 10/59:20 amSOU - IAD

2 stops15h 17mDelta

Deal found 7/2

$930

Wed 8/67:02 amIAD - SOU

2 stops20h 43mVirgin Atlantic

Wed 8/209:20 amSOU - IAD

2 stops15h 23mVirgin Atlantic

Deal found 7/2

$964

Wed 8/67:10 amBWI - SOU

3 stops32h 25mMultiple Airlines

Wed 8/208:00 amSOU - BWI

3 stops44h 59mMultiple Airlines

Deal found 7/2

$1,000

Fri 8/1512:17 pmBWI - SOU

2 stops15h 28mDelta

Fri 8/229:20 amSOU - BWI

2 stops16h 31mDelta

Deal found 7/1

$1,019

Wed 8/65:50 pmIAD - SOU

3 stops21h 25mMultiple Airlines

Wed 8/2010:50 amSOU - IAD

3 stops33h 30mMultiple Airlines

Deal found 7/2

$1,094

Mon 9/297:25 pmBWI - SOU

2 stops16h 35mVirgin Atlantic

Fri 10/39:20 amSOU - BWI

2 stops19h 17mVirgin Atlantic

Deal found 6/30

$1,126

Fri 8/156:00 amDCA - SOU

3 stops26h 20mMultiple Airlines

Fri 8/229:40 amSOU - DCA

2 stops17h 47mMultiple Airlines

Deal found 7/1

$1,290

Wed 8/209:00 pmIAD - SOU

1 stop17h 30mBritish Airways

Fri 8/228:40 amSOU - IAD

2 stops16h 30mBritish Airways

Deal found 6/30

$1,933

Best flights from Washington, D.C. to Southampton
Discover carefully curated flight deals from Washington, D.C. to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Sun 9/145:25 pmIAD - SOU

1 stop18h 35mVirgin Atlantic

Mon 9/229:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 7/1

$815

Wed 8/612:12 pmIAD - SOU

2 stops15h 33mDelta

Wed 8/209:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 7/2

$820

Wed 9/106:25 pmBWI - SOU

2 stops17h 35mKLM

Wed 9/249:20 amSOU - BWI

2 stops16h 14mKLM

Deal found 7/1

$830

Fri 8/155:20 pmIAD - SOU

1 stop10h 20mAer Lingus

Fri 8/228:00 pmSOU - IAD

1 stop24h 50mAer Lingus

Deal found 7/1

$906

Wed 8/67:10 amBWI - SOU

3 stops32h 25mMultiple Airlines

Wed 8/208:00 amSOU - BWI

3 stops44h 59mMultiple Airlines

Deal found 7/2

$1,000

Fri 11/77:00 amDCA - SOU

2 stops20h 50mDelta

Tue 11/119:00 amSOU - DCA

2 stops18h 54mDelta

Deal found 6/30

$827

Wed 9/108:23 pmIAD - SOU

2 stops15h 37mKLM

Wed 9/249:20 amSOU - IAD

2 stops15h 17mKLM

Deal found 7/1

$830

Wed 8/209:00 pmIAD - SOU

1 stop17h 30mBritish Airways

Fri 8/228:40 amSOU - IAD

2 stops16h 30mBritish Airways

Deal found 6/30

$1,933

Wed 8/65:50 pmIAD - SOU

3 stops21h 25mMultiple Airlines

Wed 8/2010:50 amSOU - IAD

3 stops33h 30mMultiple Airlines

Deal found 7/2

$1,094

Fri 8/1512:17 pmBWI - SOU

2 stops15h 28mDelta

Fri 8/229:20 amSOU - BWI

2 stops16h 31mDelta

Deal found 7/1

$1,019

Mon 9/297:25 pmBWI - SOU

2 stops16h 35mVirgin Atlantic

Fri 10/39:20 amSOU - BWI

2 stops19h 17mVirgin Atlantic

Deal found 6/30

$1,126

Fri 8/156:00 amDCA - SOU

3 stops26h 20mMultiple Airlines

Fri 8/229:40 amSOU - DCA

2 stops17h 47mMultiple Airlines

Deal found 7/1

$1,290

Last-minute flights from Washington, D.C. to Southampton
Discover last-minute flight deals from Washington, D.C. to Southampton. Data last updated July 3, 2025 and is based on user searches.

Wed 7/95:20 pmIAD - SOU

1 stop10h 20mBritish Airways

Thu 7/178:40 amSOU - IAD

2 stops16h 30mBritish Airways

Deal found 7/2

$3,145

Fri 7/1111:00 amDCA - SOU

2 stops23h 45mMultiple Airlines

Mon 7/148:00 pmSOU - DCA

2 stops24h 48mMultiple Airlines

Deal found 7/1

$1,296

Fri 7/1110:05 pmIAD - SOU

3 stops29h 30mMultiple Airlines

Mon 7/148:00 pmSOU - IAD

3 stops28h 59mMultiple Airlines

Deal found 7/1

$1,455

Fri 7/115:25 pmIAD - SOU

1 stop18h 35mKLM

Mon 7/146:25 pmSOU - IAD

1 stop26h 10mKLM

Deal found 7/1

$1,535

Fri 7/116:50 pmBWI - SOU

3 stops32h 45mMultiple Airlines

Mon 7/148:00 pmSOU - BWI

3 stops26h 40mMultiple Airlines

Deal found 7/1

$1,557

Fri 7/118:31 pmIAD - SOU

2 stops15h 29mDelta

Mon 7/149:20 amSOU - IAD

2 stops15h 31mDelta

Deal found 7/1

$1,619

Fri 7/111:08 pmBWI - SOU

2 stops14h 37mKLM

Mon 7/149:20 amSOU - BWI

2 stops16h 28mKLM

Deal found 7/1

$2,200

Wed 8/65:25 pmIAD - SOU

1 stop10h 20mDelta

Wed 8/209:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 7/2

$815

Wed 8/612:12 pmIAD - SOU

2 stops15h 33mKLM

Wed 8/206:25 pmSOU - IAD

1 stop26h 10mKLM

Deal found 7/2

$820

Wed 8/61:08 pmBWI - SOU

2 stops14h 37mDelta

Wed 8/209:20 amSOU - BWI

2 stops18h 28mDelta

Deal found 7/2

$830

Wed 8/62:55 pmDCA - SOU

2 stops12h 50mKLM

Wed 8/209:20 amSOU - DCA

2 stops14h 32mKLM

Deal found 7/2

$830

Wed 8/67:02 amIAD - SOU

2 stops20h 43mVirgin Atlantic

Wed 8/209:20 amSOU - IAD

2 stops15h 23mVirgin Atlantic

Deal found 7/2

$964

One-way flights from Washington, D.C. to Southampton
Search for one-way flight options from Washington, D.C. to Southampton. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Wed 7/167:42 pmBWI - SOU

2 stops38h 58mMultiple Airlines

Deal found 7/3

$279

Wed 9/311:15 pmIAD - SOU

3 stops38h 40mMultiple Airlines

Deal found 7/2

$344

Wed 9/35:20 pmIAD - SOU

1 stop10h 20mAer Lingus

Deal found 7/2

$445

Wed 7/166:00 amDCA - SOU

3 stops32h 30mMultiple Airlines

Deal found 7/3

$468

Fri 9/265:25 pmIAD - SOU

1 stop10h 20mDelta

Deal found 7/1

$494

Fri 9/266:25 pmBWI - SOU

2 stops18h 05mDelta

Deal found 7/1

$499

Fri 9/2612:15 pmDCA - SOU

2 stops15h 30mDelta

Deal found 7/1

$499

Fri 9/261:00 pmBWI - SOU

2 stops14h 45mKLM

Deal found 7/3

$500

Fri 9/262:50 pmDCA - SOU

2 stops12h 55mKLM

Deal found 7/3

$500

Cheapflights 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

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 9/14

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Mon 9/22

9:20 am-3:35 pm

1 stop11h 15m

$815

Washington, D.C.Southampton

DCA - SOU

DCASOU

Washington, D.C. Reagan-National

Fri 11/7

7:00 am-8:50 am

2 stops20h 50m

Southampton Eastleigh

Tue 11/11

9:00 am-10:54 pm

2 stops18h 54m

$827

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Wed 9/10

1:00 pm-8:45 am

2 stops14h 45m

Southampton Eastleigh

Wed 9/24

9:20 am-12:28 am

2 stops20h 08m

$830

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 8/15

5:20 pm-8:40 am

1 stop10h 20m

Southampton Eastleigh

Fri 8/22

8:00 pm-3:50 pm

1 stop24h 50m

$906

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 9/28

8:17 pm-5:00 pm

2 stops15h 43m

Southampton Eastleigh

Sun 10/5

9:20 am-7:37 pm

2 stops15h 17m

$930

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 8/6

7:02 am-8:45 am

2 stops20h 43m

Southampton Eastleigh

Wed 8/20

9:20 am-7:43 pm

2 stops15h 23m

$964

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Wed 8/6

7:10 am-8:35 pm

3 stops32h 25m

Southampton Eastleigh

Wed 8/20

8:00 am-11:59 pm

3 stops44h 59m

$1,000

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 8/15

12:17 pm-8:45 am

2 stops15h 28m

Southampton Eastleigh

Fri 8/22

9:20 am-8:51 pm

2 stops16h 31m

$1,019

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Wed 8/6

5:50 pm-8:15 pm

3 stops21h 25m

Southampton Eastleigh

Wed 8/20

10:50 am-3:20 pm

3 stops33h 30m

$1,094

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mon 9/29

7:25 pm-5:00 pm

2 stops16h 35m

Southampton Eastleigh

Fri 10/3

9:20 am-11:37 pm

2 stops19h 17m

$1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 21 results

Best time to book a flight from Washington, D.C. to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Southampton

What is the cheapest month to book a flight from Washington, D.C. to Southampton?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Southampton (average of $787). Flying from Washington, D.C. to Southampton in June is currently the most expensive (average of $1,308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to SOU?

When flying from Washington, D.C. to Southampton, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 23% versus a flight in the morning.

Reviews of airlines servicing Southampton

Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic from Washington, D.C. to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,970 reviews

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,366 reviews

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Aer Lingus

7.1

Good

1,144 reviews

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

British Airways

6.6

Okay

7,093 reviews

Delta

8.0

Very good

7,970 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Southampton from Washington, D.C.?
For a flight from Washington, D.C. to Southampton, you will be flying into Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 inbound flights from Washington, D.C. per day. 2 airlines have flights to Southampton Eastleigh from Washington, D.C. on a regular basis.
What are the cheapest airlines flying from Washington, D.C. to Southampton round-trip?
Cheapflights users have booked flights from Washington, D.C. to Southampton round-trip from $815. Other airlines that can offer you cheap pricing are Delta, from $820, and KLM, from $830. These flights start at 10% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. to Southampton one-way?
The cheapest airlines for a one-way flight from Washington, D.C. to Southampton are Aer Lingus ($445), Delta ($494), and KLM ($500).
What are the most popular routes from Washington, D.C. to Southampton?
When deciding which route to take from Washington, D.C. to Southampton consider Washington, D.C. Dulles Intl - Southampton Eastleigh, Baltimore/Washington - Southampton Eastleigh or Washington, D.C. Reagan-National - Southampton Eastleigh as they are the most popular.
Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Southampton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Southampton.
Can I find deals for business class flights from Washington, D.C. to Southampton?
Yes. Cheapflights offers flight deals from Washington, D.C. to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Southampton?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Southampton (average of $787). Flying from Washington, D.C. to Southampton in June is currently the most expensive (average of $1,308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington, D.C. to Southampton

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Complete your trip

Southampton car rentals

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Milton Keynes car rentals

Top 2 airlines flying from Washington, D.C. to Southampton

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest$646	Average$900	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$778	Average$1,117	FlexibilityNo cancel fee	On-timeN/A

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$279+ Cheap flights from Washington, D.C. (WAS) to Southampton (SOU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Southampton with Cheapflights

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Cheap flight deals from Washington, D.C. to Southampton

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Find flight deals from Washington, D.C. to Southampton

Cheapest flights from Washington, D.C. to SouthamptonExplore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Southampton

What is the cheapest month to book a flight from Washington, D.C. to Southampton?

What is the cheapest time of day to fly from WAS to SOU?

Find hourly flight availability from Washington, D.C. to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Southampton

Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic from Washington, D.C. to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Southampton from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Southampton round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Southampton one-way?

What are the most popular routes from Washington, D.C. to Southampton?

Can I find deals for flights from Washington, D.C. to Southampton that include hotel bookings?

How can I find direct flights from Washington, D.C. to Southampton?

Can I find deals for business class flights from Washington, D.C. to Southampton?

What is the cheapest month to book a flight from Washington, D.C. to Southampton?

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Cheapest flights from Washington, D.C. to Southampton
Explore the most affordable flight options available from Washington, D.C. to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.