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Cheap flights from London Southend Airport to San Sebastian 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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — EAS
3 May — 10 May1
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 3 April 2026.

Tue 5/506:30
SEN
-
EAS
1 stop24h 50m
Multiple Airlines
Sat 9/508:55
EAS
-
SEN
1 stop13h 50m
Multiple Airlines
Deal found 31/3£91
Sat 18/416:50
SEN
-
EAS
1 stop14h 30m
Multiple Airlines
Tue 21/417:55
EAS
-
SEN
1 stop15h 00m
Multiple Airlines
Deal found 2/4£135
Sat 2/516:50
SEN
-
EAS
1 stop14h 30m
Multiple Airlines
Sat 9/517:55
EAS
-
SEN
1 stop4h 50m
Multiple Airlines
Deal found 2/4£145
Sat 9/516:50
SEN
-
EAS
1 stop14h 30m
Multiple Airlines
Mon 11/508:55
EAS
-
SEN
1 stop11h 40m
Multiple Airlines
Deal found 31/3£172
Sat 16/516:50
SEN
-
EAS
1 stop14h 30m
Multiple Airlines
Sat 23/508:55
EAS
-
SEN
1 stop13h 50m
Multiple Airlines
Deal found 1/4£178
Wed 6/508:25
SEN
-
EAS
1 stop7h 55m
Multiple Airlines
Mon 11/508:55
EAS
-
SEN
1 stop11h 40m
Multiple Airlines
Deal found 1/4£216
Sat 9/516:50
SEN
-
EAS
1 stop14h 30m
Multiple Airlines
Sun 10/512:20
EAS
-
SEN
1 stop10h 40m
Multiple Airlines
Deal found 30/3£229
Fri 24/413:30
SEN
-
EAS
2 stops17h 50m
Multiple Airlines
Mon 27/408:55
EAS
-
SEN
1 stop11h 40m
Multiple Airlines
Deal found 1/4£234
Fri 5/620:40
SEN
-
EAS
1 stop12h 05m
Multiple Airlines
Sun 7/608:55
EAS
-
SEN
2 stops15h 25m
Multiple Airlines
Deal found 31/3£287
Fri 12/620:40
SEN
-
EAS
1 stop12h 05m
Multiple Airlines
Sun 14/608:55
EAS
-
SEN
2 stops15h 25m
Multiple Airlines
Deal found 3/4£292

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 3 April 2026.

Round-trip from

£91

One-way from

£45

Popular in

August

Cheapest in

February

Average price

£273
5/5-9/5
  • 5/5-9/5
  • 2 total stops
  • 38h 40m total
  • London to San Sebastian
Search Deals
27/4
  • 27/4
  • 1 total stop
  • 11h 15m total
  • London to San Sebastian
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£34 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 3 April 2026.
Use the filters below to find and compare flights from London Southend Airport to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sat 18/4

16:50-08:20

1 stop14h 30m

San Sebastián

Tue 21/4

17:55-07:55

1 stop15h 00m

£135

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Tue 5/5

06:30-17:20

1 stop9h 50m

San Sebastián

Sat 9/5

08:55-22:50

2 stops14h 55m

£138

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sat 30/5

16:50-08:20

1 stop14h 30m

San Sebastián

Tue 2/6

17:55-07:55

1 stop15h 00m

£172

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sat 16/5

16:50-08:20

1 stop14h 30m

San Sebastián

Sat 23/5

08:55-21:45

1 stop13h 50m

£178
Fastest return journey

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Wed 6/5

08:25-17:20

1 stop7h 55m

San Sebastián

Mon 11/5

08:55-19:35

1 stop11h 40m

£216

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Sat 9/5

16:50-08:20

1 stop14h 30m

San Sebastián

Sun 10/5

12:20-22:00

1 stop10h 40m

£229

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 24/4

13:30-08:20

2 stops17h 50m

San Sebastián

Mon 27/4

08:55-19:35

1 stop11h 40m

£234

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 5/6

20:40-09:45

1 stop12h 05m

San Sebastián

Sun 7/6

08:55-23:20

2 stops15h 25m

£287

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Fri 12/6

20:40-09:45

1 stop12h 05m

San Sebastián

Sun 14/6

08:55-23:20

2 stops15h 25m

£292

LondonSan Sebastian

SEN - EAS

SENEAS

London Southend

Thu 25/6

16:35-08:20

1 stop14h 45m

San Sebastián

Sun 28/6

12:20-22:00

1 stop10h 40m

£295

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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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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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southend to San Sebastian for you. Better yet — we are completely free to use.

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.

Can Cheapflights notify me if prices for flights from Southend to San Sebastian become cheaper?

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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