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$573+ Cheap flights from Baltimore (BWI) 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SOU
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Baltimore to Southampton

Best flights from Baltimore to Southampton
Discover carefully curated flight deals from Baltimore to Southampton that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This KLM deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:25 pmBWI - SOU
2 stops18h 40mKLM
Mon 2/165:35 pmSOU - BWI
2 stops28h 03mKLM
Deal found 12/26$784
This British Airways deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/68:35 pmBWI - SOU
2 stops15h 05mBritish Airways
Tue 2/104:30 pmSOU - BWI
2 stops55h 15mBritish Airways
Deal found 12/25$4,466
This British Airways deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:35 pmBWI - SOU
2 stops16h 50mBritish Airways
Mon 6/16:50 amSOU - BWI
2 stops17h 50mBritish Airways
Deal found 12/26$6,837

Find flight deals from Baltimore to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$784
(KLM)

One-way from

$573
(Delta)

Popular in

December

Cheapest in

September

Average price

$988
Provider with most accurate pricing for Baltimore/Washington-Southampton Eastleigh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Southampton Eastleigh flights.
Search Deals
From Baltimore/Washington to Southampton Eastleigh
Search Deals
One-way flight from Baltimore/Washington to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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, Cheapflights users made 2,558,603 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Baltimore to Southampton that are best for you.

Fly from

Baltimore

Fly to

Southampton

Route

Depart

Return

Price

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mon 2/9

5:25 pm-5:05 pm

2 stops18h 40m

Southampton Eastleigh

Mon 2/16

5:35 pm-4:38 pm

2 stops28h 03m

$784

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 2/6

8:35 pm-4:40 pm

2 stops15h 05m

Southampton Eastleigh

Tue 2/10

4:30 pm-6:45 pm

2 stops55h 15m

$4,466

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sun 5/24

9:35 pm-7:25 pm

2 stops16h 50m

Southampton Eastleigh

Mon 6/1

6:50 am-7:40 pm

2 stops17h 50m

$6,837

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 6/11

7:40 pm-4:50 pm

2 stops16h 10m

$573

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mon 6/1

9:30 pm-7:30 pm

2 stops17h 00m

$598

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 6/11

9:30 pm-7:30 pm

2 stops17h 00m

$875

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 6/20

9:30 pm-7:30 pm

2 stops17h 00m

$875

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Compare providers for flights from Baltimore to Southampton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Southampton in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Southampton flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Baltimore-Southampton flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Baltimore-Southampton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Southampton flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Baltimore 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 Baltimore to Southampton

What is the cheapest month to book a flight from Baltimore to Southampton?

Currently, March is the cheapest month in which you can book a flight from Baltimore to Southampton (average of $31). Flying from Baltimore to Southampton in June is currently the most expensive (average of $728). 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 BWI to SOU?

Find hourly flight availability from Baltimore 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 December 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 20% on flights from Baltimore to Southampton by exploring options for tickets in the afternoon.

Related info for your journey

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

  • How long is the flight from Baltimore to Southampton?

    There are many flights that can get you from Baltimore to Southampton in 15h 05m. Fly via KLM or British Airways to get the fastest option. Baltimore and Southampton are separated by a distance of 3597 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Baltimore to Southampton that include hotel bookings?

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

  • How can I find direct flights from Baltimore to Southampton?

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

  • Can I find deals for business class flights from Baltimore to Southampton?

    Yes. Cheapflights offers flight deals from Baltimore 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 Baltimore to Southampton?

    Currently, March is the cheapest month in which you can book a flight from Baltimore to Southampton (average of $31). Flying from Baltimore to Southampton in June is currently the most expensive (average of $728). 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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