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 $587 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at $598 and $865 round-trip. These flights start at 52% lower than the current average price 3 months from now.

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

For one-way options, check prices for Air France. According to our data, you can fly for as low as $916. Users have also found prices from $917 and $977 on KLM and United Airlines, respectively.

What is the cheapest day to fly from San Diego to Bilbao?

Travelers seeking maximum savings on their San Diego to Bilbao flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 37% when planning your travel around this day of the week.

What is the cheapest month to fly from San Diego to Bilbao?

November is one of the best times of the year to fly to Bilbao from San Diego. Prices for November average $1,242 per person but you can even find prices for as low as $598. The most expensive prices can be found in the month of January. Opting for a November flight can save you 144% on your journey compared to booking in January

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 AranGrant the most. AranGrant 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.

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.

$587+ Flights from San Diego to Bilbao

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Cheap flight deals from San Diego to Bilbao

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$587 (United)
Popular in	January
Cheapest in	November
Average price	$2,049

Provider with most accurate pricing for San Diego-Bilbao flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Diego-Bilbao flights.

Search Deals

From San Diego to Bilbao

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($456 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 15% potential price decrease ($164 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 15, 2025.

Wed 9/242:21 pmSAN - BIO

2 stops23h 04mUnited Airlines

Thu 10/166:45 amBIO - SAN

2 stops18h 22mUnited Airlines

Deal found 4/15

$587

Wed 9/2410:00 amSAN - BIO

2 stops21h 30mDelta

Thu 10/166:50 amBIO - SAN

1 stop14h 10mDelta

Deal found 4/15

$598

Wed 9/245:15 pmSAN - BIO

1 stop21h 10mLufthansa

Thu 10/167:15 amBIO - SAN

1 stop17h 10mLufthansa

Deal found 4/15

$865

Mon 7/145:15 pmSAN - BIO

1 stop15h 35mMultiple Airlines

Sun 8/312:30 pmBIO - SAN

2 stops30h 04mMultiple Airlines

Deal found 4/15

$1,035

Tue 7/151:55 pmSAN - BIO

1 stop23h 50mKLM

Sat 8/25:15 pmBIO - SAN

1 stop27h 45mKLM

Deal found 4/15

$1,268

Tue 9/303:30 pmSAN - BIO

2 stops18h 20mIberia

Fri 10/319:15 amBIO - SAN

2 stops19h 52mIberia

Deal found 4/14

$3,568

Best flights from San Diego to Bilbao
Discover carefully curated flight deals from San Diego to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2025.

Wed 9/242:21 pmSAN - BIO

2 stops23h 04mUnited Airlines

Thu 10/166:45 amBIO - SAN

2 stops18h 22mUnited Airlines

Deal found 4/15

$587

Wed 9/2410:00 amSAN - BIO

2 stops21h 30mDelta

Thu 10/166:50 amBIO - SAN

1 stop14h 10mDelta

Deal found 4/15

$598

Wed 9/245:15 pmSAN - BIO

1 stop21h 10mLufthansa

Thu 10/167:15 amBIO - SAN

1 stop17h 10mLufthansa

Deal found 4/15

$865

Mon 7/145:15 pmSAN - BIO

1 stop15h 35mMultiple Airlines

Sun 8/312:30 pmBIO - SAN

2 stops30h 04mMultiple Airlines

Deal found 4/15

$1,035

Tue 7/151:55 pmSAN - BIO

1 stop23h 50mKLM

Sat 8/25:15 pmBIO - SAN

1 stop27h 45mKLM

Deal found 4/15

$1,268

One-way flights from San Diego to Bilbao
Search for one-way flight options from San Diego to Bilbao. Find affordable one-way fares based on user searches. Data last updated April 15, 2025.

Thu 7/38:00 amSAN - BIO

2 stops17h 25mAir France

Deal found 4/15

$916

Thu 7/31:55 pmSAN - BIO

1 stop17h 35mKLM

Deal found 4/15

$917

Thu 7/310:41 amSAN - BIO

3 stops27h 09mUnited Airlines

Deal found 4/15

$977

Tue 8/262:11 pmSAN - BIO

2 stops19h 09mLufthansa

Deal found 4/14

$1,147

Tue 8/262:05 pmSAN - BIO

3 stops43h 30mMultiple Airlines

Deal found 4/14

$1,310

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Mon 7/14

5:15 pm-5:50 pm

1 stop15h 35m

Bilbao

Sun 8/3

12:30 pm-9:34 am

2 stops30h 04m

$1,035

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Mon 7/14

10:54 am-6:45 pm

2 stops22h 51m

Bilbao

Sun 8/3

7:05 pm-8:01 pm

2 stops33h 56m

$1,102

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 7/3

5:15 pm-5:50 pm

1 stop15h 35m

Bilbao

Sat 7/12

7:15 am-11:44 pm

2 stops25h 29m

$1,350

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 7/3

1:55 pm-10:45 pm

1 stop23h 50m

Bilbao

Sat 7/12

5:15 pm-12:00 pm

1 stop27h 45m

$1,523

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 5/15

5:15 pm-11:25 pm

1 stop21h 10m

$685

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 7/3

10:45 pm-5:30 pm

2 stops33h 45m

$870

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 7/3

8:00 am-10:25 am

2 stops17h 25m

$916

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Thu 7/3

1:55 pm-4:30 pm

1 stop17h 35m

$917

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Sat 5/17

6:34 am-10:25 am

2 stops18h 51m

$1,781

San DiegoBilbao

SAN - BIO

SANBIO

San Diego

Sat 5/17

5:15 pm-11:25 pm

1 stop21h 10m

$2,474

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Compare providers for flights from San Diego to Bilbao

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 April.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 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 AranGrant the most. AranGrant 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.

Cheapflights Insights

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

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.

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

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

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

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

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,917 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,323 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,658 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Lufthansa

6.7

Okay

7,002 reviews

Delta

8.0

Very good

7,917 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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 $587 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at $598 and $865 round-trip. These flights start at 52% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Diego to Bilbao one-way?
For one-way options, check prices for Air France. According to our data, you can fly for as low as $916. Users have also found prices from $917 and $977 on KLM and United Airlines, respectively.
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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from San Diego to Bilbao

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$680	Average$1,171	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$814	Average$1,266	FlexibilityNo cancel fee	On-timeN/A

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$587+ Cheap flights from San Diego (SAN) to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Diego to Bilbao with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Diego to Bilbao

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from San Diego to Bilbao

Cheapest flights from San Diego to BilbaoExplore 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 April 15, 2025.

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 April 15, 2025.

Cheapflights Fare Finder

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

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 April.

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.

Cheapflights Insights

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

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

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 April 15, 2025.

Rainfall in Bilbao by month

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

Temperature in Bilbao by month

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

Reviews of airlines servicing Bilbao

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?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from San Diego to Bilbao

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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 April 15, 2025.