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Cheap flights from Southampton to Bilbao from £158

SOU — BIO
21 Oct — 28 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Bilbao

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Bilbao

Sun 1/1116:15 -
1 stop15h 45m
Sun 8/1107:00 -
2 stops26h 50m
Deal found 17/9£158
Thu 5/1112:35 -
2 stops9h 00m
Thu 12/1121:50 -
1 stop17h 20m
Deal found 21/9£185
Wed 4/1109:15 -
2 stops12h 15m
Wed 11/1123:00 -
2 stops13h 55m
Deal found 20/9£188
Mon 19/1020:40 -
1 stop15h 35m
Thu 29/1020:00 -
2 stops36h 45m
Deal found 21/9£216
Mon 19/1020:40 -
1 stop15h 35m
Fri 30/1007:00 -
1 stop8h 20m
Deal found 21/9£220

Find flight deals from Southampton to Bilbao

Round-trip from

£158

Popular in

December

Cheapest in

February

Average price

£100
1/11-8/11
  • 1/11-8/11
  • 3 total stops
  • 42h 35m total
  • Southampton to Bilbao
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Highest demand for flights based on searches. 1% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Southampton to Bilbao that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

SouthamptonBilbao

SOU Southampton Eastleigh - BIO Bilbao

SOUBIO

Southampton Eastleigh

Sun 1/11

16:15-09:00

1 stop15h 45m

Bilbao

Sun 8/11

07:00-08:50

2 stops26h 50m

£158
Fastest return journey

SouthamptonBilbao

SOU Southampton Eastleigh - BIO Bilbao

SOUBIO

Southampton Eastleigh

Thu 5/11

12:35-22:35

2 stops9h 00m

Bilbao

Thu 12/11

21:50-14:10

1 stop17h 20m

£185

SouthamptonBilbao

SOU Southampton Eastleigh - BIO Bilbao

SOUBIO

Southampton Eastleigh

Wed 4/11

09:15-22:50

3 stops12h 35m

Bilbao

Wed 11/11

23:00-11:55

2 stops13h 55m

£218

SouthamptonBilbao

SOU Southampton Eastleigh - BIO Bilbao

SOUBIO

Southampton Eastleigh

Mon 19/10

20:40-13:15

1 stop15h 35m

Bilbao

Thu 29/10

21:50-14:20

1 stop17h 30m

£220

SouthamptonBilbao

SOU Southampton Eastleigh - BIO Bilbao

SOUBIO

Southampton Eastleigh

Sat 10/10

17:20-11:15

1 stop16h 55m

Bilbao

Fri 16/10

06:45-08:45

1 stop27h 00m

£362

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Sorted by cheapest first

Best time to book a flight from Southampton to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Southampton with our price prediction graph.
Estimated return price

Related info for your journey

  • Can I find deals for flights from Southampton to Bilbao that include hotel bookings?

    Yes. In addition to deals on Southampton to Bilbao flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Southampton to Bilbao?

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

  • Can I find deals for business class flights from Southampton to Bilbao?

    Yes. Cheapflights offers flight deals from Southampton to Bilbao 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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Can Cheapflights find flights from Southampton to Bilbao with no change fees?

Need flexible booking options for your flight to Bilbao from Southampton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Southampton to Bilbao become cheaper?

Yes! Start tracking prices for Southampton to Bilbao 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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