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Cheap flights from Baltimore to London from £270

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 18/11. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Baltimore to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:30 - 19:30BWI  Baltimore/Washington-SOU Southampton Eastleigh
18h 00m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
09:20 - 19:25SOU  Southampton Eastleigh-BWI Baltimore/Washington
15h 05m2 stops Dublin Reykjavik Keflavik Intl
£816Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Multiple Airlines Logo
20:30 - 08:40BWI  Baltimore/Washington-SOU Southampton Eastleigh
31h 10m3 stops Reykjavik Keflavik Intl Amsterdam Schiphol Dublin
Multiple Airlines Logo
20:00 - 19:25SOU  Southampton Eastleigh-BWI Baltimore/Washington
28h 25m3 stops Dublin Amsterdam Schiphol Reykjavik Keflavik Intl
£863Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
20:30 - 08:40BWI  Baltimore/Washington-SOU Southampton Eastleigh
31h 10m3 stops Reykjavik Keflavik Intl Milan Malpensa Dublin
Multiple Airlines Logo
07:50 - 22:15SOU  Southampton Eastleigh-BWI Baltimore/Washington
19h 25m2 stops Glasgow Intl Reykjavik Keflavik Intl
£891Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Multiple Airlines Logo
20:30 - 17:45BWI  Baltimore/Washington-SOU Southampton Eastleigh
16h 15m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
12:35 - 19:25SOU  Southampton Eastleigh-BWI Baltimore/Washington
35h 50m3 stops Belfast City Glasgow Intl Reykjavik Keflavik Intl
£894Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
20:30 - 19:30BWI  Baltimore/Washington-SOU Southampton Eastleigh
18h 00m3 stops Reykjavik Keflavik Intl London Heathrow Dublin
Multiple Airlines Logo
08:00 - 22:15SOU  Southampton Eastleigh-BWI Baltimore/Washington
19h 15m3 stops Saint Peter Port Guernsey London Gatwick Reykjavik Keflavik Intl
£949Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Multiple Airlines Logo
20:30 - 16:50BWI  Baltimore/Washington-SOU Southampton Eastleigh
15h 20m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
09:20 - 22:15SOU  Southampton Eastleigh-BWI Baltimore/Washington
17h 55m2 stops Dublin Reykjavik Keflavik Intl
£964Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Multiple Airlines Logo
20:30 - 17:45BWI  Baltimore/Washington-SOU Southampton Eastleigh
16h 15m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
10:00 - 19:25SOU  Southampton Eastleigh-BWI Baltimore/Washington
14h 25m2 stops Glasgow Intl Reykjavik Keflavik Intl
£994Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Delta Logo
14:18 - 08:45BWI  Baltimore/Washington-SOU Southampton Eastleigh
13h 27m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
Delta Logo
09:15 - 21:13SOU  Southampton Eastleigh-BWI Baltimore/Washington
16h 58m2 stops Amsterdam Schiphol Boston Logan Intl
£1,001Delta
Thu, 27 Aug - Wed, 2 Sep
Delta Logo
13:45 - 08:45BWI  Baltimore/Washington-SOU Southampton Eastleigh
14h 00m2 stops Boston Logan Intl Amsterdam Schiphol
Delta Logo
09:15 - 21:13SOU  Southampton Eastleigh-BWI Baltimore/Washington
16h 58m2 stops Amsterdam Schiphol Boston Logan Intl
£1,015Delta
Fri, 28 Aug - Wed, 2 Sep
Delta Logo
17:36 - 16:50BWI  Baltimore/Washington-SOU Southampton Eastleigh
18h 14m2 stops Detroit Metropolitan Wayne County Amsterdam Schiphol
Delta Logo
09:15 - 21:30SOU  Southampton Eastleigh-BWI Baltimore/Washington
17h 15m2 stops Amsterdam Schiphol Minneapolis St Paul
£1,078Delta
Sat, 5 Sep - Sat, 12 Sep

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Delta flights from Baltimore to Southampton

Our best Delta deals on Baltimore to Southampton flight tickets
Delta
27 Aug
BWI14:18Baltimore/Washington
13h 27m
2 stops
SOU08:45Southampton Eastleigh
2 Sept
SOU09:15Southampton Eastleigh
16h 58m
2 stops
BWI21:13Baltimore/Washington
£1,001
Delta
28 Aug
BWI13:45Baltimore/Washington
14h 00m
2 stops
SOU08:45Southampton Eastleigh
2 Sept
SOU09:15Southampton Eastleigh
16h 58m
2 stops
BWI21:13Baltimore/Washington
£1,015
Delta
5 Sept
BWI17:36Baltimore/Washington
18h 14m
2 stops
SOU16:50Southampton Eastleigh
12 Sept
SOU09:15Southampton Eastleigh
17h 15m
2 stops
BWI21:30Baltimore/Washington
£1,078

KLM flights from Baltimore to Southampton

Our best KLM deals on Baltimore to Southampton flight tickets
KLM
3 Sept
BWI12:30Baltimore/Washington
15h 05m
2 stops
SOU08:35Southampton Eastleigh
17 Sept
SOU09:05Southampton Eastleigh
17h 20m
2 stops
BWI21:25Baltimore/Washington
£1,085
KLM
3 Sept
BWI13:45Baltimore/Washington
13h 50m
2 stops
SOU08:35Southampton Eastleigh
9 Sept
SOU09:15Southampton Eastleigh
17h 13m
2 stops
BWI21:28Baltimore/Washington
£1,190

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 8 August 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 Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sat 19/9

20:30-19:30

2 stops18h 00m

Southampton Eastleigh

Sat 26/9

09:20-19:25

2 stops15h 05m

£816

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sun 20/9

20:30-08:40

3 stops31h 10m

Southampton Eastleigh

Sun 27/9

20:00-19:25

3 stops28h 25m

£863

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sat 19/9

20:30-08:40

3 stops31h 10m

Southampton Eastleigh

Sat 26/9

07:50-22:15

2 stops19h 25m

£891

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sun 20/9

20:30-17:45

2 stops16h 15m

Southampton Eastleigh

Sun 27/9

12:35-19:25

3 stops35h 50m

£894

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sat 19/9

20:30-19:30

3 stops18h 00m

Southampton Eastleigh

Sat 26/9

08:00-22:15

3 stops19h 15m

£949

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sat 19/9

20:30-16:50

2 stops15h 20m

Southampton Eastleigh

Sat 26/9

09:20-22:15

2 stops17h 55m

£964

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sun 20/9

20:30-17:45

2 stops16h 15m

Southampton Eastleigh

Sun 27/9

10:00-19:25

2 stops14h 25m

£994
Fastest return journey

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Thu 27/8

14:18-08:45

2 stops13h 27m

Southampton Eastleigh

Wed 2/9

09:15-21:13

2 stops16h 58m

£1,001

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Fri 28/8

13:45-08:45

2 stops14h 00m

Southampton Eastleigh

Wed 2/9

09:15-21:13

2 stops16h 58m

£1,015

BaltimoreSouthampton

BWI Baltimore/Washington - SOU Southampton Eastleigh

BWISOU

Baltimore/Washington

Sat 5/9

17:36-16:50

2 stops18h 14m

Southampton Eastleigh

Sat 12/9

09:15-21:30

2 stops17h 15m

£1,078

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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, Aer Lingus, and KLM are the most popular carriers operating from Baltimore/Washington to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, United Airlines and Virgin Atlantic 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 50% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 5 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 05m

Direct flights

None
The fastest flight from Baltimore to Southampton takes 15h 05m
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 05m.

  • 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.

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