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Cheap flights from London Southend Airport to San Sebastian from £51

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — EAS
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to San Sebastian

Enter your travel dates to find the best prices.

Cheapest flights from Southend to San Sebastian
Explore the most affordable flight options available from Southend to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 January 2026.

Wed 20/508:25SEN - EAS
1 stop23h 10mMultiple Airlines
Sat 23/508:55EAS - SEN
1 stop13h 50mMultiple Airlines
Deal found 3/1£172
Wed 18/217:20SEN - EAS
2 stops19h 10mMultiple Airlines
Wed 25/214:05EAS - SEN
2 stops9h 50mMultiple Airlines
Deal found 4/1£200
Fri 6/216:05SEN - EAS
2 stops20h 25mMultiple Airlines
Mon 9/214:05EAS - SEN
2 stops9h 55mMultiple Airlines
Deal found 4/1£201
Thu 29/106:50SEN - EAS
1 stop5h 40mMultiple Airlines
Mon 2/214:05EAS - SEN
2 stops9h 55mMultiple Airlines
Deal found 3/1£205
Fri 10/413:30SEN - EAS
2 stops17h 50mMultiple Airlines
Sun 12/412:05EAS - SEN
1 stop10h 55mMultiple Airlines
Deal found 4/1£232
Sat 27/617:20SEN - EAS
2 stops14h 00mMultiple Airlines
Sat 4/710:25EAS - SEN
2 stops12h 20mMultiple Airlines
Deal found 3/1£252
Tue 17/215:55SEN - EAS
2 stops20h 35mMultiple Airlines
Tue 24/214:05EAS - SEN
2 stops9h 20mMultiple Airlines
Deal found 3/1£256
Fri 30/116:05SEN - EAS
2 stops20h 25mMultiple Airlines
Mon 2/214:05EAS - SEN
2 stops9h 55mMultiple Airlines
Deal found 3/1£261

Find flight deals from Southend to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Southend (SEN) to San Sebastian (EAS). 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 January 2026.

Round-trip from

£172

One-way from

£51

Popular in

May

Cheapest in

January

Average price

£134
20/5-23/5
  • 20/5-23/5
  • 2 total stops
  • 37h 00m total
  • London to San Sebastian
Search Deals
31/3
  • 31/3
  • 1 total stop
  • 25h 00m total
  • London to San Sebastian
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend to San Sebastian 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 January 2026.
Use the filters below to find and compare flights from London Southend Airport to San Sebastian that are best for you.

Fly from

Southend

Fly to

San Sebastian

Route

Depart

Return

Price

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Wed 20/5

08:25-08:35

1 stop23h 10m

San Sebastián

Sat 23/5

08:55-21:45

1 stop13h 50m

£172

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Wed 18/2

17:20-13:30

2 stops19h 10m

San Sebastián

Wed 25/2

14:05-22:55

2 stops9h 50m

£200

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 6/2

16:05-13:30

2 stops20h 25m

San Sebastián

Mon 9/2

14:05-23:00

2 stops9h 55m

£201

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Thu 29/1

06:50-13:30

1 stop5h 40m

San Sebastián

Mon 2/2

14:05-23:00

2 stops9h 55m

£205

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 10/4

13:30-08:20

2 stops17h 50m

San Sebastián

Sun 12/4

12:05-22:00

1 stop10h 55m

£232

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sat 27/6

17:20-08:20

2 stops14h 00m

San Sebastián

Sat 4/7

10:25-21:45

2 stops12h 20m

£252

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 17/2

15:55-13:30

2 stops20h 35m

San Sebastián

Tue 24/2

14:05-22:25

2 stops9h 20m

£256

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 30/1

16:05-13:30

2 stops20h 25m

San Sebastián

Mon 2/2

14:05-23:00

2 stops9h 55m

£261

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 31/3

06:20-08:20

1 stop25h 00m

£51

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 2/6

20:25-09:40

1 stop12h 15m

£63

Flights are sorted by cheapest return flights first.

Deals found on 3/1

Showing 1-10 of 16 results
1
2

Best time to book a flight from Southend to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Southend 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.

Related info for your journey

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

  • What airport do you fly into for flights to San Sebastian from London Southend?

    If you book a flight to San Sebastian from London Southend, you will be flying to San Sebastián, which is the city’s only airport. San Sebastián (EAS) is located 9.7 mi from the center of San Sebastian. There are 0 flights from London Southend to San Sebastián per day from 0 different airlines.

  • Can I find deals for flights from Southend to San Sebastian that include hotel bookings?

    Yes. In addition to deals on Southend to San Sebastian flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southend to San Sebastian?

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

  • Can I find deals for business class flights from Southend to San Sebastian?

    Yes. Cheapflights offers flight deals from Southend to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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How does Cheapflights help users find flights from Southend to San Sebastian?

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Why should you use Cheapflights to find cheap flight tickets from Southend to San Sebastian?

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Can Cheapflights find flights from Southend to San Sebastian with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southend to San Sebastian flexibly with Cheapflights today.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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