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$403+ Cheap flights from San Diego (SAN) to Bilbao (BIO)

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BIO
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from San Diego to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Bilbao (BIO). 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 febrero 20, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$884
(United Airlines)

Popular in

January

Cheapest in

July

Average price

$1,098
Provider with most accurate pricing for San Diego-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Bilbao flights.
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From San Diego to Bilbao
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($298 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($178 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from San Diego to Bilbao

Cheapest flights from San Diego to Bilbao
Explore the most affordable flight options available from San Diego to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/246:20 pmSAN - BIO
1 stop19h 30mMultiple Airlines
mar. 4/16:45 amBIO - SAN
2 stops38h 03mMultiple Airlines
Deal found 2/19$883
This United Airlines deal was found by Cheapflights users on 2/19. 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.
lun. 3/246:20 pmSAN - BIO
1 stop19h 30mUnited Airlines
mar. 4/17:15 amBIO - SAN
1 stop17h 10mUnited Airlines
Deal found 2/19$884
This KLM deal was found by Cheapflights users on 2/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/247:50 amSAN - BIO
2 stops19h 30mKLM
mar. 4/17:10 amBIO - SAN
2 stops18h 00mKLM
Deal found 2/19$891
This SmartFares deal was found by Cheapflights users on 2/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/215:15 pmSAN - BIO
1 stop15h 35mLufthansa
lun. 5/511:50 amBIO - SAN
1 stop36h 35mLufthansa
Deal found 2/18$1,106
This Air Canada deal was found by Cheapflights users on 2/19. 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.
vie. 7/258:10 amSAN - BIO
2 stops24h 40mAir Canada
vie. 8/16:45 amBIO - SAN
2 stops21h 53mAir Canada
Deal found 2/19$1,408
This Ovago deal was found by Cheapflights users on 2/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/2112:35 pmSAN - BIO
2 stops24h 45mWestJet
vie. 3/77:20 amBIO - SAN
2 stops37h 26mWestJet
Deal found 2/18$1,648
This AranGrant deal was found by Cheapflights users on 2/18. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/86:15 amSAN - BIO
2 stops24h 00mAer Lingus
lun. 4/76:10 pmBIO - SAN
2 stops35h 11mAer Lingus
Deal found 2/18$3,981
This Iberia deal was found by Cheapflights users on 2/20. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/157:50 pmSAN - BIO
2 stops40h 00mIberia
lun. 6/239:35 pmBIO - SAN
2 stops34h 47mIberia
Deal found 2/20$4,155

Find flights from San Diego to Bilbao within your budget

Customize your flight search to find flights from San Diego to Bilbao 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 febrero 20, 2025.

Fly from

San Diego

Fly to

Bilbao

Route

Depart

Return

Price

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

lun. 3/24

6:20 pm-9:50 pm

1 stop19h 30m

Bilbao

mar. 4/1

6:45 am-11:48 am

2 stops38h 03m

$883

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

lun. 3/24

6:20 pm-9:50 pm

1 stop19h 30m

Bilbao

mar. 4/1

7:15 am-3:25 pm

1 stop17h 10m

$884

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

lun. 3/24

7:50 am-11:20 am

2 stops19h 30m

Bilbao

mar. 4/1

7:10 am-4:10 pm

2 stops18h 00m

$891

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

lun. 4/21

5:15 pm-5:50 pm

1 stop15h 35m

Bilbao

lun. 5/5

11:50 am-3:25 pm

1 stop36h 35m

$1,106

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

sáb. 3/8

6:15 am-3:15 pm

2 stops24h 00m

Bilbao

lun. 4/7

6:10 pm-8:21 pm

2 stops35h 11m

$3,981

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

mié. 5/7

3:10 pm-6:35 pm

3 stops42h 25m

$403

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

mié. 5/7

5:15 pm-11:25 pm

1 stop21h 10m

$709

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

jue. 5/8

7:50 pm-8:30 am

2 stops27h 40m

$2,456

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Compare providers for flights from San Diego to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Bilbao in February.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Diego-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Diego-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Bilbao flights, Cheapflights users trust Expedia the most. Expedia 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 San Diego-Bilbao 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 San Diego to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from San Diego 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.

Travel insights for flights from San Diego to Bilbao

Get recent, data-driven insights about flights from San Diego to Bilbao including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from SAN to BIO?

Find hourly flight availability from San Diego to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from San Diego to Bilbao by exploring options for tickets at noon.

Rainfall in Bilbao by month

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

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

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

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated febrero 20, 2025.
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Finnair
7.6
Good
1,273 reviews
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

United Airlines
7.4
Good
8,766 reviews
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,070 reviews
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Iberia
7.0
Good
2,639 reviews
KLM
7.8
Good
1,333 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.2

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

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

  • What are the cheapest airlines flying from San Diego to Bilbao round-trip?

    Our cheapest airline available from San Diego to Bilbao is United Airlines. Our recent data shows that you can find tickets from as low as $884 on this airline. Additional options worth looking into are Aer Lingus and Finnair, starting at $3,984 and $4,126 round-trip. These flights start at 38% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego 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.

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

    Currently, January is the cheapest month in which you can book a flight from San Diego to Bilbao (average of $541). Flying from San Diego to Bilbao in June is currently the most expensive (average of $1,178). 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

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Top 2 airlines flying from San Diego to Bilbao

Discover the top 2 airlines that operate flights from San Diego to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$695Average$1,210FlexibilityNo cancel feeOn-time76%
DeltaCheapest$905Average$1,353FlexibilityNo cancel feeOn-timeN/A
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