How long is the flight from Washington, D.C. to Southampton?

A quick flight from Washington, D.C. to Southampton can take about 13h 35m. Aer Lingus provides one of the quickest options available for as low as $702. Airlines will cover a distance of 3639 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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 $677. Another airline that can offer you cheap pricing is Delta. These flights start at 36% 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 KLM ($496), Delta ($501), and Aer Lingus ($6,442).

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 36% 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 $743, or $878 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 $732 for the month, but tickets can be as low as $389. 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.

$496+ Cheap Flights from Washington, D.C. to Southampton

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

Round-trip from	$668 (Mytrip)
One-way from	$496 (KLM)
Popular in	August
Cheapest in	October
Average price	$2,292

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. 25% potential increase in price ($366 potential increase over avg. RT price).

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Cheapest flight prices on average. 14% potential price decrease ($137 potential savings vs. average RT price).

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Average for round-trip flights in August 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 August 22, 2025.

Tue 11/116:00 pmIAD - SOU

2 stops16h 35mMultiple Airlines

Mon 11/178:10 pmSOU - IAD

2 stops24h 40mMultiple Airlines

Deal found 8/20

$668

Tue 11/119:00 pmIAD - SOU

1 stop13h 35mAer Lingus

Mon 11/179:30 amSOU - IAD

1 stop15h 00mAer Lingus

Deal found 8/20

$702

Fri 9/55:25 pmIAD - SOU

1 stop19h 05mVirgin Atlantic

Tue 9/99:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 8/20

$763

Fri 9/56:50 pmBWI - SOU

2 stops15h 55mMultiple Airlines

Tue 9/95:35 pmSOU - BWI

3 stops29h 05mMultiple Airlines

Deal found 8/20

$777

Tue 11/117:40 pmBWI - SOU

2 stops20h 15mMultiple Airlines

Mon 11/176:50 amSOU - BWI

2 stops16h 50mMultiple Airlines

Deal found 8/20

$785

Mon 9/291:00 pmIAD - SOU

2 stops14h 45mKLM

Wed 10/155:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$813

Wed 10/85:25 pmIAD - SOU

1 stop18h 35mDelta

Wed 10/159:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 8/21

$814

Wed 9/1012:13 pmIAD - SOU

2 stops15h 32mKLM

Wed 9/245:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$818

Fri 9/511:35 amBWI - SOU

2 stops16h 10mKLM

Tue 9/99:20 amSOU - BWI

2 stops17h 29mKLM

Deal found 8/20

$819

Fri 9/55:25 pmIAD - SOU

1 stop19h 05mKLM

Tue 9/99:20 amSOU - IAD

2 stops19h 20mKLM

Deal found 8/20

$819

Tue 10/75:25 pmIAD - SOU

1 stop10h 20mDelta

Wed 10/159:20 amSOU - IAD

2 stops14h 58mDelta

Deal found 8/21

$824

Wed 9/1011:35 amBWI - SOU

2 stops16h 10mKLM

Wed 9/249:20 amSOU - BWI

2 stops16h 14mKLM

Deal found 8/21

$828

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 August 22, 2025.

Tue 11/116:00 pmIAD - SOU

2 stops16h 35mMultiple Airlines

Mon 11/178:10 pmSOU - IAD

2 stops24h 40mMultiple Airlines

Deal found 8/20

$668

Tue 11/119:00 pmIAD - SOU

1 stop13h 35mAer Lingus

Mon 11/179:30 amSOU - IAD

1 stop15h 00mAer Lingus

Deal found 8/20

$702

Mon 9/295:25 pmIAD - SOU

1 stop18h 35mVirgin Atlantic

Wed 10/155:35 pmSOU - IAD

1 stop27h 00mVirgin Atlantic

Deal found 8/21

$763

Mon 9/291:00 pmIAD - SOU

2 stops14h 45mKLM

Wed 10/155:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$813

Thu 2/126:05 pmIAD - SOU

1 stop17h 55mDelta

Sun 2/155:45 pmSOU - IAD

1 stop27h 20mDelta

Deal found 8/20

$814

Fri 9/55:25 pmIAD - SOU

1 stop19h 05mVirgin Atlantic

Tue 9/99:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 8/20

$763

Fri 9/56:50 pmBWI - SOU

2 stops15h 55mMultiple Airlines

Tue 9/95:35 pmSOU - BWI

3 stops29h 05mMultiple Airlines

Deal found 8/20

$777

Tue 10/75:25 pmIAD - SOU

1 stop18h 35mDelta

Wed 10/159:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 8/21

$814

Sat 9/205:25 pmIAD - SOU

1 stop10h 20mKLM

Sat 9/279:20 amSOU - IAD

1 stop11h 15mKLM

Deal found 8/21

$814

Tue 11/117:40 pmBWI - SOU

2 stops20h 15mMultiple Airlines

Mon 11/176:50 amSOU - BWI

2 stops16h 50mMultiple Airlines

Deal found 8/20

$785

Tue 11/116:05 pmIAD - SOU

1 stop17h 55mKLM

Mon 11/176:05 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/20

$814

Tue 10/71:15 pmDCA - SOU

2 stops14h 30mDelta

Wed 10/159:20 amSOU - DCA

2 stops16h 13mDelta

Deal found 8/21

$828

Last-minute flights from Washington, D.C. to Southampton
Discover last-minute flight deals from Washington, D.C. to Southampton. Data last updated August 22, 2025 and is based on user searches.

Fri 9/55:25 pmIAD - SOU

1 stop19h 05mVirgin Atlantic

Tue 9/99:20 amSOU - IAD

1 stop11h 15mVirgin Atlantic

Deal found 8/20

$763

Fri 9/56:50 pmBWI - SOU

2 stops15h 55mMultiple Airlines

Tue 9/95:35 pmSOU - BWI

3 stops29h 05mMultiple Airlines

Deal found 8/20

$777

Fri 9/511:35 amBWI - SOU

2 stops16h 10mKLM

Tue 9/99:20 amSOU - BWI

2 stops17h 29mKLM

Deal found 8/20

$819

Fri 9/55:25 pmIAD - SOU

1 stop19h 05mKLM

Tue 9/99:20 amSOU - IAD

2 stops19h 20mKLM

Deal found 8/20

$819

Fri 9/55:20 pmIAD - SOU

2 stops34h 25mMultiple Airlines

Tue 9/95:35 pmSOU - IAD

2 stops30h 55mMultiple Airlines

Deal found 8/20

$953

Wed 9/105:25 pmIAD - SOU

1 stop10h 20mKLM

Wed 9/245:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$814

Wed 9/1011:35 amBWI - SOU

2 stops16h 10mKLM

Wed 9/249:20 amSOU - BWI

2 stops16h 14mKLM

Deal found 8/21

$828

Thu 9/115:25 pmIAD - SOU

1 stop10h 20mKLM

Mon 9/155:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$866

Sat 9/2012:08 pmIAD - SOU

2 stops15h 37mDelta

Sat 9/279:20 amSOU - IAD

1 stop11h 15mDelta

Deal found 8/21

$929

Sat 9/2010:20 amDCA - SOU

2 stops17h 25mDelta

Sat 9/279:20 amSOU - DCA

2 stops18h 37mDelta

Deal found 8/21

$989

Mon 9/291:00 pmIAD - SOU

2 stops14h 45mKLM

Wed 10/155:35 pmSOU - IAD

1 stop27h 00mKLM

Deal found 8/21

$813

Mon 9/295:45 pmIAD - SOU

3 stops20h 45mMultiple Airlines

Wed 10/159:10 amSOU - IAD

3 stops40h 40mMultiple Airlines

Deal found 8/21

$864

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 August 22, 2025.

Fri 9/265:25 pmIAD - SOU

1 stop10h 20mKLM

Deal found 8/20

$496

Fri 9/261:00 pmBWI - SOU

2 stops14h 45mKLM

Deal found 8/21

$501

Fri 9/261:20 pmDCA - SOU

2 stops14h 25mKLM

Deal found 8/21

$501

Fri 9/268:17 pmIAD - SOU

2 stops16h 13mDelta

Deal found 8/21

$501

Wed 10/89:00 pmIAD - SOU

1 stop30h 40mAer Lingus

Deal found 8/20

$6,442

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

Tue 11/11

6:00 pm-3:35 pm

2 stops16h 35m

Southampton Eastleigh

Mon 11/17

8:10 pm-3:50 pm

2 stops24h 40m

$668

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 11/11

9:00 pm-3:35 pm

1 stop13h 35m

Southampton Eastleigh

Mon 11/17

9:30 am-7:30 pm

1 stop15h 00m

$702

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 9/29

5:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

Wed 10/15

5:35 pm-3:35 pm

1 stop27h 00m

$763

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Fri 9/5

5:25 pm-5:30 pm

1 stop19h 05m

Southampton Eastleigh

Tue 9/9

9:20 am-3:35 pm

1 stop11h 15m

$763

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 9/5

6:50 pm-3:45 pm

2 stops15h 55m

Southampton Eastleigh

Tue 9/9

5:35 pm-5:40 pm

3 stops29h 05m

$777

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Tue 11/11

7:40 pm-8:55 pm

2 stops20h 15m

Southampton Eastleigh

Mon 11/17

6:50 am-6:40 pm

2 stops16h 50m

$785

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Mon 9/29

1:00 pm-8:45 am

2 stops14h 45m

Southampton Eastleigh

Wed 10/15

5:35 pm-3:35 pm

1 stop27h 00m

$813

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Thu 2/12

6:05 pm-5:00 pm

1 stop17h 55m

Southampton Eastleigh

Sun 2/15

5:45 pm-4:05 pm

1 stop27h 20m

$814

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Tue 10/7

5:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

Wed 10/15

9:20 am-3:35 pm

1 stop11h 15m

$814

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sat 9/20

5:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Sat 9/27

9:20 am-3:35 pm

1 stop11h 15m

$814

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 35 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 Aer Lingus 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

7,981 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

7,981 reviews

Delta

8.0

Very good

7,981 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

1,388 reviews

Delta

8.0

Very good

7,981 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

1,228 reviews

Delta

8.0

Very good

7,981 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.
How long is the flight from Washington, D.C. to Southampton?
A quick flight from Washington, D.C. to Southampton can take about 13h 35m. Aer Lingus provides one of the quickest options available for as low as $702. Airlines will cover a distance of 3639 mi. Both multi-stop and nonstop flights can be found to your destination and back.
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 $677. Another airline that can offer you cheap pricing is Delta. These flights start at 36% 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 KLM ($496), Delta ($501), and Aer Lingus ($6,442).
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.

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

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest$677	Average$900	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$778	Average$1,117	FlexibilityNo cancel fee	On-timeN/A

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$496+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

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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 August 22, 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 August 22, 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 August 22, 2025.

Reviews of airlines servicing Southampton

Read reviews from past customers who have flown Delta, KLM, and Aer Lingus 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.?

How long is the flight from Washington, D.C. to Southampton?

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?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Southampton

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Top 2 airlines flying 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 August 22, 2025.