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Cheap flights from Southampton to Madrid, Spain from £78

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — MAD
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Madrid

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Madrid
Explore the most affordable flight options available from Southampton to Madrid. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 December 2025.

Wed 31/1208:40SOU - MAD
2 stops10h 20mBritish Airways
Wed 14/112:00MAD - SOU
2 stops9h 05mBritish Airways
Deal found 3/12£524
Tue 30/1214:45SOU - MAD
3 stops18h 00mBritish Airways
Tue 13/110:25MAD - SOU
2 stops10h 35mBritish Airways
Deal found 2/12£534
Wed 24/1208:40SOU - MAD
2 stops12h 30mBritish Airways
Mon 12/106:45MAD - SOU
2 stops10h 20mBritish Airways
Deal found 1/12£830
Mon 29/1216:50SOU - MAD
2 stops15h 45mBritish Airways
Mon 12/112:50MAD - SOU
2 stops8h 10mBritish Airways
Deal found 1/12£881
Sun 21/1209:05SOU - MAD
2 stops9h 40mBritish Airways
Sun 4/106:45MAD - SOU
2 stops9h 45mBritish Airways
Deal found 2/12£1,488
Thu 18/1212:40SOU - MAD
2 stops9h 25mBritish Airways
Mon 5/110:35MAD - SOU
2 stops10h 45mBritish Airways
Deal found 1/12£1,595
Fri 19/1208:40SOU - MAD
2 stops12h 30mBritish Airways
Fri 2/117:20MAD - SOU
2 stops16h 20mBritish Airways
Deal found 1/12£1,871
Fri 19/1208:40SOU - MAD
2 stops12h 50mBritish Airways
Sun 4/106:45MAD - SOU
2 stops9h 45mBritish Airways
Deal found 1/12£1,942

Find flight deals from Southampton to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Madrid (MAD). 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 4 December 2025.

Round-trip from

£121

One-way from

£78

Popular in

September

Cheapest in

October

Average price

£169
9/1-16/1
  • 9/1-16/1
  • 2 total stops
  • 20h 25m total
  • Southampton to Madrid
Search Deals
21/4
  • 21/4
  • 1 total stop
  • 26h 55m total
  • Southampton to Madrid
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Madrid 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 858,174 searches. Data last updated 4 December 2025.
Use the filters below to find and compare flights from Southampton to Madrid that are best for you.

Fly from

Southampton

Fly to

Madrid

Route

Depart

Return

Price

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Fri 9/1

08:10-21:55

1 stop12h 45m

Madrid Barajas

Fri 16/1

07:05-13:45

1 stop7h 40m

£121

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Thu 15/1

20:10-09:35

1 stop12h 25m

Madrid Barajas

Thu 22/1

22:15-08:45

1 stop11h 30m

£154

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Thu 12/2

20:10-09:35

1 stop12h 25m

Madrid Barajas

Wed 18/2

10:40-15:35

1 stop5h 55m

£183

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 12/1

09:25-23:25

1 stop13h 00m

Madrid Barajas

Fri 16/1

11:00-17:05

1 stop7h 05m

£286

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 12/1

12:00-14:15

2 stops25h 15m

Madrid Barajas

Fri 16/1

21:20-16:40

2 stops20h 20m

£391

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Tue 21/4

18:10-21:25

2 stops26h 15m

£88

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 5/1

12:00-09:35

2 stops20h 35m

£226

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 15/12

18:05-10:15

1 stop15h 10m

£244

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 15/12

16:45-09:35

2 stops15h 50m

£270

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 8/12

18:05-10:15

1 stop15h 10m

£275

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 13 results
1
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Best time to book a flight from Southampton to Madrid

Have a flexible travel schedule? Discover the best time to fly to Madrid from Southampton with our price prediction graph.
Estimated return 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 Southampton to Madrid

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

Currently, March is the cheapest month in which you can book a flight from Southampton to Madrid (average of £34). Flying from Southampton to Madrid in July is currently the most expensive (average of £75). 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.

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Madrid. Reviews last updated 4 December 2025.
Read reviews from past customers who have flown with KLM from Southampton to Madrid. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,428 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,428 reviews
KLM
7.7
Good
1,428 reviews
Check prices

Food

7.2

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

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

  • What is the cheapest airline to fly from Southampton to Madrid round-trip?

    Flying on KLM is currently your cheapest option to Madrid, with prices starting at £176. KLM is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Southampton to Madrid (average of £34). Flying from Southampton to Madrid in July is currently the most expensive (average of £75). 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

Travelling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Fuenlabrada
Getafe
Guadalajara

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Southampton to Madrid

Discover the top airline that operate flights from Southampton to Madrid. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£176Average£321FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Southampton to Madrid?

When you search for this flight from Southampton to Madrid, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Madrid?

Cheapflights simply makes it quick and affordable to book flights from Southampton to Madrid by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Southampton to Madrid with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Madrid flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Southampton to Madrid become cheaper?

Yes! Start tracking prices for Southampton to Madrid flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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