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$378+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SAN
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
2 stars

Round-trip from

$1,147
(United Airlines)

One-way from

$378
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$771
Provider with most accurate pricing for Bilbao-San Diego flight deals.
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Provider most trusted by Cheapflights users for Bilbao-San Diego flights.
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From Bilbao to San Diego
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One-way flight from Bilbao to San Diego
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Highest demand for flights based on searches. 17% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 7/2512:30 pmBIO - SAN
1 stop17h 52mUnited Airlines
Sat 8/236:30 amSAN - BIO
2 stops19h 15mUnited Airlines
Deal found 4/17$1,147

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 April 17, 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

Fri 7/25

12:30 pm-9:22 pm

1 stop17h 52m

San Diego

Sat 8/23

6:30 am-10:45 am

2 stops19h 15m

$1,147

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 6/11

1:55 pm-11:29 pm

3 stops42h 34m

$378

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Fri 6/13

6:10 pm-7:18 pm

2 stops34h 08m

$752

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Wed 6/11

12:00 pm-12:00 pm

1 stop33h 00m

$796

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Fri 6/13

7:15 am-3:25 pm

1 stop17h 10m

$1,540

BilbaoSan Diego

BIO - SAN

BIOSAN

Bilbao

Tue 6/17

7:15 am-2:59 pm

3 stops40h 44m

$1,572

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

  • 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, August is the cheapest month in which you can book a flight from Bilbao to San Diego (average of $286). Flying from Bilbao to San Diego in March is currently the most expensive (average of $366). 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated April 17, 2025.
KLM
7.8
Good
1,329 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,329 reviews
KLM
7.8
Good
1,329 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,667 reviews
KLM
7.8
Good
1,329 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Aer Lingus
7.0
Good
1,063 reviews
KLM
7.8
Good
1,329 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Lufthansa
6.7
Okay
7,012 reviews
KLM
7.8
Good
1,329 reviews

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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.

  • What is the cheapest airline to fly from Bilbao to San Diego round-trip?

    Currently priced at $1,147, United Airlines will fly you from Bilbao to San Diego and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

  • What are the cheapest airlines to fly from Bilbao to San Diego one-way?

    $752 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on KLM and Lufthansa, with prices starting from $796 and $1,540, respectively.

  • 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, August is the cheapest month in which you can book a flight from Bilbao to San Diego (average of $286). Flying from Bilbao to San Diego in March is currently the most expensive (average of $366). 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 Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado

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