HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southampton

$459+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SOU
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Southampton with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Southampton

Cheapest flights from Baltimore to Southampton
Explore the most affordable flight options available from Baltimore to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:30 pm
BWI
-
SOU
2 stops17h 00m
Aer Lingus
Sun 9/278:00 pm
SOU
-
BWI
2 stops28h 40m
Aer Lingus
Deal found 2/11$986
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:01 pm
BWI
-
SOU
2 stops14h 24m
Delta
Tue 2/248:50 am
SOU
-
BWI
2 stops18h 12m
Delta
Deal found 2/9$1,014
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:00 pm
BWI
-
SOU
2 stops14h 45m
Delta
Mon 9/79:05 am
SOU
-
BWI
2 stops18h 08m
Delta
Deal found 2/9$1,082
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:30 pm
BWI
-
SOU
2 stops17h 00m
Aer Lingus
Sun 9/279:10 am
SOU
-
BWI
2 stops15h 35m
Aer Lingus
Deal found 2/11$1,139
This KLM deal was found by Cheapflights users on 2/9. 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.
Sat 8/291:00 pm
BWI
-
SOU
2 stops14h 45m
KLM
Mon 8/315:20 pm
SOU
-
BWI
2 stops27h 31m
KLM
Deal found 2/9$1,197
This Booking.com deal was found by Cheapflights users on 2/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:40 pm
BWI
-
SOU
2 stops16h 30m
Multiple Airlines
Thu 4/211:40 am
SOU
-
BWI
2 stops12h 45m
Multiple Airlines
Deal found 2/9$1,275
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/239:30 pm
BWI
-
SOU
2 stops17h 00m
Aer Lingus
Sat 5/308:00 pm
SOU
-
BWI
2 stops28h 45m
Aer Lingus
Deal found 2/11$1,281
This oojo deal was found by Cheapflights users on 2/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 pm
BWI
-
SOU
2 stops17h 00m
Aer Lingus
Sun 5/319:10 am
SOU
-
BWI
2 stops15h 35m
Aer Lingus
Deal found 2/9$1,318
This oojo deal was found by Cheapflights users on 2/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:30 pm
BWI
-
SOU
2 stops17h 00m
Aer Lingus
Wed 5/278:00 pm
SOU
-
BWI
2 stops28h 40m
Aer Lingus
Deal found 2/11$1,319

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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,275
(Booking.com)

One-way from

$459
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$642
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. 11% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 12, 2026.
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

Thu 3/26

8:40 pm-5:10 pm

2 stops16h 30m

Southampton Eastleigh

Thu 4/2

11:40 am-7:25 pm

2 stops12h 45m

$1,275

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 5/23

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Sat 5/30

8:00 pm-7:45 pm

2 stops28h 45m

$1,281

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 5/22

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Sun 5/31

9:10 am-7:45 pm

2 stops15h 35m

$1,318

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 5/22

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Wed 5/27

8:00 pm-7:40 pm

2 stops28h 40m

$1,319

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 5/28

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Mon 6/8

8:00 pm-7:40 pm

2 stops28h 40m

$1,417

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Wed 6/17

1:00 pm-8:35 am

2 stops14h 35m

Southampton Eastleigh

Sun 6/21

9:15 am-10:13 pm

2 stops17h 58m

$1,516

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 6/25

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Sun 7/5

5:05 pm-7:40 pm

2 stops31h 35m

$1,598

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 6/25

9:30 pm-7:30 pm

2 stops17h 00m

Southampton Eastleigh

Sat 7/4

8:00 pm-7:45 pm

2 stops28h 45m

$1,813

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 3/27

10:09 am-7:05 pm

3 stops28h 56m

Southampton Eastleigh

Fri 4/3

8:00 am-7:25 pm

2 stops16h 25m

$1,972

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 3/27

2:38 pm-8:50 am

2 stops14h 12m

Southampton Eastleigh

Fri 4/3

5:20 pm-4:35 pm

2 stops28h 15m

$1,976

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 15 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Southampton flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $697). 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.

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 17h. Fly via Aer Lingus to get the fastest option. Baltimore and Southampton are separated by a distance of 3597 mi.

  • 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 $697). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Baltimore to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to London City flights
Dulles Intl to Stansted flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Dulles Intl to Edinburgh flights
Dulles Intl to Luton flights
Philadelphia to Gatwick flights
Philadelphia to Edinburgh flights
Baltimore to Edinburgh flights
Philadelphia to London City flights
Reagan-National to Edinburgh flights
Baltimore to Luton flights
Reagan-National to Luton flights
Baltimore to Stansted flights
Philadelphia to Stansted flights
Philadelphia to Luton flights
Dulles Intl to Manchester flights
Reagan-National to Stansted flights
Reagan-National to London City flights
Baltimore to Manchester flights
Baltimore to London City flights
Reagan-National to Manchester flights
Dulles Intl to Southampton flights
Philadelphia to Manchester flights
Dulles Intl to Birmingham flights
Dulles Intl to Leeds flights
Baltimore to Birmingham flights
Reagan-National to Birmingham flights
Philadelphia to Birmingham flights
Dulles Intl to Newcastle upon Tyne flights
Baltimore to Newcastle upon Tyne flights
Philadelphia to Leeds flights
Reagan-National to Newcastle upon Tyne flights
Dulles Intl to Liverpool flights
Reagan-National to Southampton flights
Philadelphia to Liverpool flights
Dulles Intl to Bristol flights
Philadelphia to Newcastle upon Tyne flights
Baltimore to Leeds flights
Reagan-National to Bristol flights
Baltimore to Bristol flights
Dulles Intl to Southend flights
Baltimore to Liverpool flights
Philadelphia to Southampton flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.