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Cheap flights from Baltimore to London from £373

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 26/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Logo
18:50 - 15:45BWI-SOU
15h 55m2 stops
Logo
17:35 - 17:40SOU-BWI
29h 05m3 stops
£578
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Fr, 5 Sep - Di, 9 Sep
Logo
19:40 - 20:55BWI-SOU
20h 15m2 stops
Logo
06:50 - 18:40SOU-BWI
16h 50m2 stops
£584
Find Deal
Di, 11 Nov - Mo, 17 Nov
KLM Logo
11:35 - 08:45BWI-SOU
16h 10m2 stops
KLM Logo
09:20 - 21:49SOU-BWI
17h 29m2 stops
£609KLM
Find Deal
Fr, 5 Sep - Di, 9 Sep
KLM Logo
11:35 - 08:45BWI-SOU
16h 10m2 stops
KLM Logo
09:20 - 20:34SOU-BWI
16h 14m2 stops
£616KLM
Find Deal
Mi, 10 Sep - Mi, 24 Sep
KLM Logo
09:00 - 08:45BWI-SOU
18h 45m2 stops
KLM Logo
09:20 - 00:28SOU-BWI
20h 08m2 stops
£617KLM
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Mi, 10 Sep - Mi, 24 Sep
Logo
18:50 - 19:30BWI-SOU
19h 40m2 stops
Logo
09:40 - 17:40SOU-BWI
37h 00m3 stops
£754
Find Deal
Sa, 4 Okt - Sa, 11 Okt
Logo
18:50 - 19:30BWI-SOU
19h 40m2 stops
Logo
20:00 - 17:40SOU-BWI
26h 40m3 stops
£772
Find Deal
So, 5 Okt - So, 12 Okt
KLM Logo
13:00 - 08:45BWI-SOU
14h 45m2 stops
KLM Logo
09:20 - 21:04SOU-BWI
16h 44m2 stops
£777KLM
Find Deal
Sa, 4 Okt - Sa, 11 Okt
Logo
18:50 - 08:25BWI-SOU
32h 35m3 stops
Logo
16:25 - 17:40SOU-BWI
30h 15m3 stops
£812
Find Deal
Sa, 4 Okt - Sa, 11 Okt
Aer Lingus Logo
20:35 - 19:40BWI-SOU
18h 05m2 stops
Aer Lingus Logo
20:10 - 18:45SOU-BWI
27h 35m2 stops
£827Aer Lingus
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Di, 11 Nov - Mo, 17 Nov

KLM flights from Baltimore to Southampton

Our best KLM deals on Baltimore to Southampton flight tickets
KLM
5 Sept
BWI11:35Baltimore/Washington
16h 10m
2 stops
SOU08:45Southampton Eastleigh
9 Sept
SOU09:20Southampton Eastleigh
17h 29m
2 stops
BWI21:49Baltimore/Washington
£609
Find similar
KLM
10 Sept
BWI11:35Baltimore/Washington
16h 10m
2 stops
SOU08:45Southampton Eastleigh
24 Sept
SOU09:20Southampton Eastleigh
16h 14m
2 stops
BWI20:34Baltimore/Washington
£616
Find similar
KLM
10 Sept
BWI09:00Baltimore/Washington
18h 45m
2 stops
SOU08:45Southampton Eastleigh
24 Sept
SOU09:20Southampton Eastleigh
20h 08m
2 stops
BWI00:28Baltimore/Washington
£617
Find similar

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 22 August 2025.
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

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fr 5/9

18:50-15:45

2 stops15h 55m

Southampton Eastleigh

Di 9/9

17:35-17:40

3 stops29h 05m

£578

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Di 11/11

19:40-20:55

2 stops20h 15m

Southampton Eastleigh

Mo 17/11

06:50-18:40

2 stops16h 50m

£584

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Fr 5/9

11:35-08:45

2 stops16h 10m

Southampton Eastleigh

Di 9/9

09:20-21:49

2 stops17h 29m

£609

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mi 10/9

11:35-08:45

2 stops16h 10m

Southampton Eastleigh

Mi 24/9

09:20-20:34

2 stops16h 14m

£616

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Mi 10/9

09:00-08:45

2 stops18h 45m

Southampton Eastleigh

Mi 24/9

09:20-00:28

2 stops20h 08m

£617

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sa 4/10

18:50-19:30

2 stops19h 40m

Southampton Eastleigh

Sa 11/10

09:40-17:40

3 stops37h 00m

£754

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

So 5/10

18:50-19:30

2 stops19h 40m

Southampton Eastleigh

So 12/10

20:00-17:40

3 stops26h 40m

£772

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sa 4/10

13:00-08:45

2 stops14h 45m

Southampton Eastleigh

Sa 11/10

09:20-21:04

2 stops16h 44m

£777

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Sa 4/10

18:50-08:25

3 stops32h 35m

Southampton Eastleigh

Sa 11/10

16:25-17:40

3 stops30h 15m

£812

BaltimoreSouthampton

BWI - SOU

BWISOU

Baltimore/Washington

Di 11/11

20:35-19:40

2 stops18h 05m

Southampton Eastleigh

Mo 17/11

20:10-18:45

2 stops27h 35m

£827

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 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?

KLM is the most popular carrier operating from Baltimore/Washington to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, Virgin Atlantic and Iberia 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 44% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 9 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

Direct flights

None
There are no direct flights from Baltimore to Southampton. There are no popular flight routes from Baltimore to Southampton.
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  • 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 14h 45m.

  • 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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