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Cheap flights from Baltimore to London from £422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to London departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Baltimore to London

Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
19:40 - 17:00
BWI
-
SOU
16h 20m
2 stops
Delta Logo
08:40 - 00:11
SOU
-
BWI
20h 31m
2 stops
£826Delta
Sun, 1 Nov - Fri, 20 Nov
Delta Logo
13:00 - 08:35
BWI
-
SOU
14h 35m
2 stops
Delta Logo
09:05 - 20:46
SOU
-
BWI
16h 41m
2 stops
£827Delta
Wed, 30 Sep - Wed, 7 Oct
Delta Logo
18:10 - 17:00
BWI
-
SOU
18h 50m
2 stops
Delta Logo
17:30 - 18:46
SOU
-
BWI
30h 16m
2 stops
£863Delta
Fri, 30 Oct - Mon, 16 Nov
Delta Logo
13:00 - 08:10
BWI
-
SOU
39h 10m
2 stops
Delta Logo
08:40 - 08:14
SOU
-
BWI
28h 34m
2 stops
£864Delta
Sat, 31 Oct - Wed, 18 Nov
Delta Logo
13:00 - 08:05
BWI
-
SOU
14h 05m
2 stops
Delta Logo
09:25 - 22:55
SOU
-
BWI
18h 30m
2 stops
£900Delta
Thu, 5 Nov - Sat, 21 Nov
Delta Logo
13:00 - 08:10
BWI
-
SOU
39h 10m
2 stops
Delta Logo
17:30 - 08:14
SOU
-
BWI
43h 44m
2 stops
£901Delta
Sat, 31 Oct - Sat, 14 Nov
Multiple Airlines Logo
23:20 - 20:45
BWI
-
SOU
16h 25m
3 stops
Multiple Airlines Logo
19:55 - 19:25
SOU
-
BWI
28h 30m
3 stops
£927Multiple Airlines
Mon, 10 Aug - Tue, 25 Aug
Delta Logo
06:10 - 08:45
BWI
-
SOU
21h 35m
2 stops
Delta Logo
09:20 - 20:46
SOU
-
BWI
16h 26m
2 stops
£944Delta
Fri, 2 Oct - Sat, 10 Oct
Delta Logo
13:00 - 08:45
BWI
-
SOU
14h 45m
2 stops
Delta Logo
09:05 - 22:42
SOU
-
BWI
18h 37m
2 stops
£975Delta
Sat, 29 Aug - Mon, 7 Sep
Delta Logo
13:00 - 08:45
BWI
-
SOU
14h 45m
2 stops
Delta Logo
09:05 - 22:42
SOU
-
BWI
18h 37m
2 stops
£976Delta
Sat, 29 Aug - Mon, 7 Sep

KLM flights from Baltimore to Southampton

Our best KLM deals on Baltimore to Southampton flight tickets
KLM
19 May
BWI11:05Baltimore/Washington
16h 30m
2 stops
SOU08:35Southampton Eastleigh
3 Jun
SOU17:20Southampton Eastleigh
27h 26m
2 stops
BWI15:46Baltimore/Washington
£929
KLM
1 Jun
BWI12:31Baltimore/Washington
15h 04m
2 stops
SOU08:35Southampton Eastleigh
17 Jun
SOU09:05Southampton Eastleigh
17h 20m
2 stops
BWI21:25Baltimore/Washington
£1,027
KLM
1 Jun
BWI12:00Baltimore/Washington
15h 35m
2 stops
SOU08:35Southampton Eastleigh
17 Jun
SOU09:05Southampton Eastleigh
17h 20m
2 stops
BWI21:25Baltimore/Washington
£1,031

Delta flights from Baltimore to Southampton

Our best Delta deals on Baltimore to Southampton flight tickets
Delta
1 Nov
BWI18:10Baltimore/Washington
17h 50m
2 stops
SOU17:00Southampton Eastleigh
18 Nov
SOU08:40Southampton Eastleigh
20h 06m
2 stops
BWI23:46Baltimore/Washington
£826
Delta
30 Sept
BWI13:00Baltimore/Washington
14h 35m
2 stops
SOU08:35Southampton Eastleigh
7 Oct
SOU09:05Southampton Eastleigh
16h 41m
2 stops
BWI20:46Baltimore/Washington
£827
Delta
30 Oct
BWI18:10Baltimore/Washington
18h 50m
2 stops
SOU17:00Southampton Eastleigh
18 Nov
SOU08:40Southampton Eastleigh
17h 06m
2 stops
BWI20:46Baltimore/Washington
£863

momondo Fare Finder

 
Customise 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, momondo users made 279,928 searches. Data last updated 14 May 2026.
Use the filters below to find and compare flights from Baltimore to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sun 1/11

19:40-17:00

2 stops16h 20m

Southampton Eastleigh

Fri 20/11

08:40-00:11

2 stops20h 31m

£826
Fastest return journey

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Wed 30/9

13:00-08:35

2 stops14h 35m

Southampton Eastleigh

Wed 7/10

09:05-20:46

2 stops16h 41m

£827

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 30/10

18:10-17:00

2 stops18h 50m

Southampton Eastleigh

Mon 16/11

17:30-18:46

2 stops30h 16m

£863

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 31/10

13:00-08:10

2 stops39h 10m

Southampton Eastleigh

Wed 18/11

08:40-08:14

2 stops28h 34m

£864

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Thu 5/11

13:00-08:05

2 stops14h 05m

Southampton Eastleigh

Sat 21/11

09:25-22:55

2 stops18h 30m

£900

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 31/10

13:00-08:10

2 stops39h 10m

Southampton Eastleigh

Sat 14/11

17:30-08:14

2 stops43h 44m

£901

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mon 10/8

23:20-20:45

3 stops16h 25m

Southampton Eastleigh

Tue 25/8

19:55-19:25

3 stops28h 30m

£927

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fri 2/10

06:10-08:45

2 stops21h 35m

Southampton Eastleigh

Sat 10/10

09:20-20:46

2 stops16h 26m

£944

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 29/8

13:00-08:45

2 stops14h 45m

Southampton Eastleigh

Mon 7/9

09:05-22:42

2 stops18h 37m

£975

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sat 29/8

13:00-08:45

2 stops14h 45m

Southampton Eastleigh

Mon 7/9

09:05-22:42

2 stops18h 37m

£976

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Baltimore 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 airline that flies from Baltimore/Washington to Southampton Eastleigh?

Delta and KLM are the most popular carriers operating from Baltimore/Washington to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, Virgin Atlantic and United Airlines are the top three most popular airlines that fly to Southampton from Baltimore according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 6 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from Baltimore to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Baltimore to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Baltimore to Southampton (BWI to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to Southampton

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from Baltimore to Southampton takes 15h 15m
There are no direct flights from Baltimore to Southampton. There are no popular flight routes from Baltimore to Southampton.
Search flight deals

Frequently asked questions about flying from Baltimore to Southampton

  • How far is Baltimore/Washington to Southampton Eastleigh by plane?

    Southampton Eastleigh is 3588.2 mi away from Baltimore/Washington. By plane, this route typically takes 15h 15m.

  • When did momondo last update prices for flights from Baltimore/Washington Airport to Southampton Eastleigh Airport?

    Prices for flights from Baltimore/Washington Airport to Southampton Eastleigh Airport were last updated today.

  • How old do you have to be to fly from Baltimore/Washington Airport to Southampton Eastleigh Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Baltimore/Washington Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The necessary travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling 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 Baltimore to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Baltimore to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Baltimore to Southampton with flexible booking policies on momondo?

momondo does allow users to show only those flights to Southampton from Baltimore which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Baltimore to Southampton?

Once you have performed a search for Baltimore to Southampton flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Baltimore to Southampton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Baltimore to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Southampton trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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