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$705+ Cheap flights from Bilbao (BIO) to San Diego (SAN)

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SAN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find flight deals from Bilbao to San Diego

Cheapest flights from Bilbao to San Diego
Explore the most affordable flight options available from Bilbao to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:50 amBIO - SAN
2 stops20h 31mDelta
Sat 2/79:55 amSAN - BIO
2 stops22h 25mDelta
Deal found 10/27$806
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:40 amBIO - SAN
1 stop17h 05mUnited Airlines
Sat 2/711:08 amSAN - BIO
2 stops21h 57mUnited Airlines
Deal found 10/29$814
This Lufthansa deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:45 amBIO - SAN
2 stops21h 05mLufthansa
Mon 11/172:16 pmSAN - BIO
2 stops41h 24mLufthansa
Deal found 10/28$826
This Air Canada deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:45 amBIO - SAN
2 stops38h 08mAir Canada
Sat 2/712:40 pmSAN - BIO
3 stops38h 20mAir Canada
Deal found 10/27$839
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:50 amBIO - SAN
2 stops22h 23mDelta
Sun 11/1610:10 pmSAN - BIO
2 stops28h 10mDelta
Deal found 10/27$847
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:25 amBIO - SAN
2 stops35h 56mUnited Airlines
Sun 11/305:35 pmSAN - BIO
1 stop19h 20mUnited Airlines
Deal found 10/27$854
This Lufthansa deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:25 amBIO - SAN
1 stop17h 20mLufthansa
Sun 11/305:35 pmSAN - BIO
1 stop15h 30mLufthansa
Deal found 10/27$855
This Lufthansa deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:25 amBIO - SAN
1 stop17h 20mLufthansa
Sun 11/165:35 pmSAN - BIO
1 stop32h 15mLufthansa
Deal found 10/27$863
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:50 amBIO - SAN
2 stops37h 32mDelta
Sun 11/3010:30 pmSAN - BIO
2 stops28h 00mDelta
Deal found 10/26$864

Cheap flight deals from Bilbao to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to San Diego (SAN). 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 October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$806
(Delta)

One-way from

$705
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$875
Provider with most accurate pricing for Bilbao-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-San Diego flights.
Search Deals
From Bilbao to San Diego
Search Deals
One-way flight from Bilbao to San Diego
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($231 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to San Diego 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Bilbao to San Diego that are best for you.

Fly from

Bilbao

Fly to

San Diego

Route

Depart

Return

Price

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 12/4

6:45 am-11:53 am

2 stops38h 08m

San Diego

Sat 2/7

6:10 pm-6:05 pm

2 stops38h 55m

$806

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 12/4

11:55 am-10:24 pm

2 stops19h 29m

San Diego

Sat 2/7

10:37 am-5:20 pm

2 stops21h 43m

$808

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 12/4

7:40 am-3:45 pm

1 stop17h 05m

San Diego

Sat 2/7

11:08 am-6:05 pm

2 stops21h 57m

$814

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 12/4

7:40 am-3:45 pm

1 stop17h 05m

San Diego

Sat 2/7

7:00 am-4:40 pm

2 stops24h 40m

$826

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 11/13

6:45 am-6:50 pm

2 stops21h 05m

San Diego

Mon 11/17

2:16 pm-4:40 pm

2 stops41h 24m

$826

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Thu 12/4

6:45 am-11:53 am

2 stops38h 08m

San Diego

Sat 2/7

12:40 pm-12:00 pm

3 stops38h 20m

$839

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 11/12

6:50 am-8:13 pm

2 stops22h 23m

San Diego

Sun 11/16

10:10 pm-11:20 am

2 stops28h 10m

$847

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 11/26

7:25 am-10:21 am

2 stops35h 56m

San Diego

Sun 11/30

5:35 pm-9:55 pm

1 stop19h 20m

$854

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 11/26

7:25 am-3:45 pm

1 stop17h 20m

San Diego

Sun 11/30

5:35 pm-9:55 pm

1 stop19h 20m

$854

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 11/12

7:25 am-3:45 pm

1 stop17h 20m

San Diego

Sun 11/16

5:35 pm-10:50 am

1 stop32h 15m

$863

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 16 results
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  • Most accurate provider: When it comes to deals on Bilbao-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bilbao-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bilbao-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bilbao to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Bilbao with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Bilbao to San Diego

What is the cheapest month to book a flight from Bilbao to San Diego?

Currently, February is the cheapest month in which you can book a flight from Bilbao to San Diego (average of $611). Flying from Bilbao to San Diego in September is currently the most expensive (average of $1,242). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

  • How long is the flight from Bilbao to San Diego?

    There are many flights that can get you from Bilbao to San Diego in 17h 05m. Fly via Delta, United Airlines, or Lufthansa to get the fastest option. Bilbao and San Diego are separated by a distance of 5742 mi. This flight may include one or multiple stops.

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

    Yes. In addition to deals on Bilbao to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to San Diego?

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

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

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

  • What is the cheapest month to book a flight from Bilbao to San Diego?

    Currently, February is the cheapest month in which you can book a flight from Bilbao to San Diego (average of $611). Flying from Bilbao to San Diego in September is currently the most expensive (average of $1,242). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

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