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Cheap flights from London Southend Airport to San Sebastian from £40

SEN — EAS
18 Sep — 25 Sep1
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

Sat 26/916:50 -
1 stop14h 30m
Tue 29/917:55 -
1 stop15h 00m
Deal found 17/8£123
Tue 22/920:25 -
1 stop12h 15m
Tue 29/917:55 -
1 stop15h 00m
Deal found 18/8£137
Sat 17/1016:50 -
1 stop14h 30m
Tue 20/1017:55 -
1 stop15h 00m
Deal found 16/8£140
Tue 15/920:25 -
1 stop12h 15m
Sat 19/917:55 -
1 stop4h 50m
Deal found 15/8£160
Tue 15/920:25 -
1 stop12h 15m
Tue 22/917:55 -
1 stop15h 00m
Deal found 18/8£163
Fri 4/920:40 -
1 stop12h 05m
Tue 8/917:55 -
1 stop15h 00m
Deal found 16/8£163
Fri 13/1117:45 -
2 stops13h 55m
Sun 15/1118:10 -
1 stop5h 05m
Deal found 17/8£174
Fri 18/920:40 -
1 stop12h 05m
Fri 25/910:35 -
2 stops23h 05m
Deal found 18/8£179
Sat 19/916:50 -
1 stop14h 30m
Sat 26/908:55 -
1 stop13h 50m
Deal found 16/8£203
Tue 8/920:25 -
1 stop12h 15m
Sat 12/910:50 -
1 stop9h 15m
Deal found 16/8£219

Find flight deals from Southend to San Sebastian

Round-trip from

£123

One-way from

£40

Popular in

December

Cheapest in

November

Average price

£275
26/9-29/9
  • 26/9-29/9
  • 2 total stops
  • 29h 30m total
  • London to San Sebastian
Search Deals
17/10
  • 17/10
  • 1 total stop
  • 14h 30m 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. 18% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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 London Southend - EAS San Sebastián

SENEAS

London Southend

Sat 26/9

16:50-08:20

1 stop14h 30m

San Sebastián

Tue 29/9

17:55-07:55

1 stop15h 00m

£123

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Sat 17/10

16:50-08:20

1 stop14h 30m

San Sebastián

Tue 20/10

17:55-07:55

1 stop15h 00m

£140
Fastest return journey

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Tue 15/9

20:25-09:40

1 stop12h 15m

San Sebastián

Sat 19/9

17:55-21:45

1 stop4h 50m

£160

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Fri 4/9

20:40-09:45

1 stop12h 05m

San Sebastián

Tue 8/9

17:55-07:55

1 stop15h 00m

£163

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Fri 13/11

17:45-08:40

2 stops13h 55m

San Sebastián

Sun 15/11

18:10-22:15

1 stop5h 05m

£174

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Fri 18/9

20:40-09:45

1 stop12h 05m

San Sebastián

Fri 25/9

10:35-08:40

2 stops23h 05m

£179

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Tue 1/9

20:25-09:45

1 stop12h 20m

San Sebastián

Fri 11/9

08:55-08:40

2 stops24h 45m

£230

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Wed 30/9

08:25-17:20

1 stop7h 55m

San Sebastián

Sat 3/10

08:55-21:45

1 stop13h 50m

£236

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Wed 14/10

08:25-17:20

1 stop7h 55m

San Sebastián

Fri 16/10

17:55-08:40

2 stops15h 45m

£243

LondonSan Sebastian

SEN London Southend - EAS San Sebastián

SENEAS

London Southend

Fri 4/9

20:40-09:45

1 stop12h 05m

San Sebastián

Sun 6/9

12:20-22:00

1 stop10h 40m

£256

Flights are sorted by cheapest return flights first.

Deals found on 16/8

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

Related info for your journey

  • 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.

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