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Cheap flights from London Southend Airport to San Sebastian from £75

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — EAS
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 2 November 2025.

Round-trip from

£140

One-way from

£75

Popular in

May

Cheapest in

January

Average price

£281
12/12-16/12
  • 12/12-16/12
  • 3 total stops
  • 27h 35m total
  • London to San Sebastian
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15/12
  • 15/12
  • 2 total stops
  • 23h 35m total
  • London to San Sebastian
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£46 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 2 November 2025.

Fri 12/1212:50SEN - EAS
2 stops20h 55mMultiple Airlines
Tue 16/1214:05EAS - SEN
1 stop6h 40mMultiple Airlines
Deal found 31/10£140
Mon 15/1217:30SEN - EAS
2 stops23h 35mMultiple Airlines
Wed 17/1214:05EAS - SEN
2 stops9h 50mMultiple Airlines
Deal found 1/11£143
Tue 16/1220:20SEN - EAS
1 stop16h 10mMultiple Airlines
Tue 23/1214:05EAS - SEN
1 stop6h 40mMultiple Airlines
Deal found 1/11£159
Thu 4/1206:50SEN - EAS
1 stop5h 40mMultiple Airlines
Sun 7/1209:20EAS - SEN
2 stops7h 50mMultiple Airlines
Deal found 31/10£187
Tue 2/1215:55SEN - EAS
2 stops20h 35mMultiple Airlines
Tue 9/1214:05EAS - SEN
1 stop6h 40mMultiple Airlines
Deal found 2/11£189
Fri 21/1112:50SEN - EAS
2 stops20h 55mMultiple Airlines
Mon 24/1114:05EAS - SEN
2 stops9h 55mMultiple Airlines
Deal found 31/10£278

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 2 November 2025.
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

Fri 12/12

12:50-10:45

2 stops20h 55m

San Sebastián

Tue 16/12

14:05-19:45

1 stop6h 40m

£140

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Mon 15/12

17:30-18:05

2 stops23h 35m

San Sebastián

Wed 17/12

14:05-22:55

2 stops9h 50m

£143

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 16/12

20:20-13:30

1 stop16h 10m

San Sebastián

Tue 23/12

14:05-19:45

1 stop6h 40m

£159

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Thu 4/12

06:50-13:30

1 stop5h 40m

San Sebastián

Sun 7/12

09:20-16:10

2 stops7h 50m

£187

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 2/12

15:55-13:30

2 stops20h 35m

San Sebastián

Tue 9/12

14:05-19:45

1 stop6h 40m

£189

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sun 15/2

07:10-13:30

1 stop5h 20m

San Sebastián

Tue 17/2

14:05-19:45

1 stop6h 40m

£278

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 21/11

12:50-10:45

2 stops20h 55m

San Sebastián

Mon 24/11

14:05-23:00

2 stops9h 55m

£278

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Mon 15/12

17:30-18:05

2 stops23h 35m

£75

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Wed 10/12

17:20-08:40

2 stops14h 20m

£93

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Wed 24/12

17:20-08:40

2 stops14h 20m

£112

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 16 results
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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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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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