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Cheap flights from Southampton to Madrid, Spain from £45

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — MAD
18 Apr — 25 Apr1
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 19 March 2026.

Thu 9/409:05
SOU
-
MAD
1 stop13h 30m
Multiple Airlines
Wed 15/423:10
MAD
-
SOU
1 stop10h 25m
Multiple Airlines
Deal found 17/3£134
Wed 29/412:30
SOU
-
MAD
2 stops20h 00m
Multiple Airlines
Wed 6/522:40
MAD
-
SOU
1 stop11h 05m
Multiple Airlines
Deal found 15/3£137
Mon 18/519:20
SOU
-
MAD
2 stops16h 20m
Multiple Airlines
Wed 20/522:40
MAD
-
SOU
1 stop11h 05m
Multiple Airlines
Deal found 18/3£146
Sat 2/520:05
SOU
-
MAD
1 stop11h 50m
Multiple Airlines
Sat 9/507:25
MAD
-
SOU
1 stop25h 30m
Multiple Airlines
Deal found 18/3£158
Mon 20/420:40
SOU
-
MAD
1 stop10h 15m
Multiple Airlines
Fri 24/422:35
MAD
-
SOU
1 stop14h 10m
Multiple Airlines
Deal found 17/3£179
Mon 27/420:40
SOU
-
MAD
1 stop10h 15m
Multiple Airlines
Wed 29/423:15
MAD
-
SOU
1 stop11h 10m
Multiple Airlines
Deal found 19/3£185

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 19 March 2026.

Round-trip from

£134

One-way from

£45

Popular in

April

Cheapest in

January

Average price

£145
9/4-15/4
  • 9/4-15/4
  • 2 total stops
  • 23h 55m total
  • Southampton to Madrid
Search Deals
1/6
  • 1/6
  • 1 total stop
  • 25h 55m total
  • Southampton to Madrid
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 19 March 2026.
Use the filters below to find and compare flights from Southampton to Madrid that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 18/5

20:40-20:40

1 stop23h 00m

Madrid Barajas

Wed 20/5

21:45-08:35

1 stop11h 50m

£137

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Thu 9/4

11:40-09:20

2 stops20h 40m

Madrid Barajas

Wed 15/4

17:30-12:15

2 stops19h 45m

£189

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Fri 1/5

09:25-01:05

2 stops14h 40m

Madrid Barajas

Fri 8/5

22:30-08:45

3 stops35h 15m

£281

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Wed 8/4

12:30-09:30

2 stops20h 00m

Madrid Barajas

Sat 11/4

09:25-19:30

2 stops11h 05m

£296

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Mon 13/4

12:35-09:40

2 stops20h 05m

Madrid Barajas

Wed 15/4

05:35-12:55

1 stop8h 20m

£371

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Wed 8/4

09:05-16:25

1 stop6h 20m

Madrid Barajas

Wed 8/4

20:30-08:35

1 stop13h 05m

£374

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Sun 12/7

09:15-16:25

1 stop6h 10m

Madrid Barajas

Sat 25/7

20:30-08:45

1 stop13h 15m

£381

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Sun 12/7

09:15-16:25

1 stop6h 10m

Madrid Barajas

Thu 30/7

20:30-08:45

1 stop13h 15m

£393

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Fri 10/7

06:50-20:05

2 stops12h 15m

Madrid Barajas

Mon 27/7

17:30-09:25

2 stops16h 55m

£461
Fastest return journey

SouthamptonMadrid

SOU - MAD

SOUMAD

Southampton Eastleigh

Wed 13/5

08:55-20:05

2 stops10h 10m

Madrid Barajas

Sat 16/5

05:50-11:45

1 stop6h 55m

£479

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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, February is the cheapest month in which you can book a flight from Southampton to Madrid (average of £29). Flying from Southampton to Madrid in August is currently the most expensive (average of £83). 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 19 March 2026.
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
7.8
Good
1,472 reviews
Check prices

Overall

7.8

Entertainment

7.1

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,472 reviews
KLM
7.8
Good
1,472 reviews
Check prices

Overall

7.8

Entertainment

7.1

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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.

  • 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, February is the cheapest month in which you can book a flight from Southampton to Madrid (average of £29). Flying from Southampton to Madrid in August is currently the most expensive (average of £83). 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 19 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£176Average£324FlexibilityNo 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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