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$343+ Cheap flights from Fremont, CA 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIO
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Bilbao are usually found in September or March, booked 31 days in advance, depart on a Sunday or Tuesday and return on a Wednesday

Cheap flight deals from Fremont to Bilbao

Keep the following information in mind while searching for Fremont to Bilbao flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$559
(Finnair)

One-way from

$343
(oojo)

Popular in

June

Cheapest in

September

Average price

$894
Provider with most accurate pricing for San Francisco-Bilbao flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Bilbao flights.
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From Fremont to Bilbao
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One-way flight from Fremont to Bilbao
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Highest demand for flights based on searches. 15% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Fremont to Bilbao

Cheapest flights from Fremont to Bilbao
Explore the most affordable flight options available from Fremont to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Finnair deal was found by Cheapflights users on 4/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:28 pmSFO - BIO
2 stops23h 47mMultiple Airlines
Fri 10/176:45 amBIO - SFO
2 stops22h 35mMultiple Airlines
Deal found 4/30$559
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 7/148:25 pmSFO - BIO
1 stop29h 35mDelta
Tue 12/237:20 amBIO - SFO
1 stop14h 50mDelta
Deal found 4/30$561
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:50 amSFO - BIO
2 stops18h 05mAir Canada
Thu 11/276:45 amBIO - SFO
2 stops23h 41mAir Canada
Deal found 4/29$589
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 11/198:35 pmSFO - BIO
1 stop16h 15mUnited Airlines
Fri 11/286:45 amBIO - SFO
2 stops23h 57mUnited Airlines
Deal found 4/29$592
This FlightHub deal was found by Cheapflights users on 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:35 pmSFO - BIO
1 stop16h 15mLufthansa
Thu 11/2711:35 amBIO - SFO
1 stop16h 10mLufthansa
Deal found 4/30$595
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:25 pmSFO - BIO
1 stop16h 35mKLM
Fri 10/177:10 amBIO - SFO
2 stops17h 50mKLM
Deal found 4/29$610
This Orbitz deal was found by Cheapflights users on 4/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/138:00 pmSFO - BIO
1 stop27h 15mIberia
Wed 5/219:35 pmBIO - SFO
1 stop27h 35mIberia
Deal found 4/29$652
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:45 pmSFO - BIO
1 stop14h 10mAmerican Airlines
Wed 5/149:15 amBIO - SFO
2 stops20h 20mAmerican Airlines
Deal found 4/30$744
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/612:40 pmSFO - BIO
1 stop37h 25mTurkish Airlines
Sun 8/176:30 pmBIO - SFO
1 stop25h 05mTurkish Airlines
Deal found 4/29$799
This SWISS deal was found by Cheapflights users on 4/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/197:30 pmSFO - BIO
1 stop15h 45mSWISS
Mon 5/2610:25 amBIO - SFO
1 stop14h 45mSWISS
Deal found 4/28$801
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:05 pmSFO - BIO
1 stop35h 30mVueling
Wed 6/113:10 pmBIO - SFO
1 stop35h 50mVueling
Deal found 4/30$901

Cheapflights Fare Finder

Customize your flight search to find flights from Fremont 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 May 1, 2025.
Use the filters below to find and compare flights from Fremont to Bilbao that are best for you.

Fly from

Fremont

Fly to

Bilbao

Route

Depart

Return

Price

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 7/14

8:25 pm-11:00 am

1 stop29h 35m

Bilbao

Tue 12/23

7:20 am-1:10 pm

1 stop14h 50m

$561

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 7/14

12:30 am-10:45 am

3 stops25h 15m

Bilbao

Wed 12/24

7:20 am-2:50 pm

1 stop16h 30m

$639

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 7/14

10:45 pm-10:45 am

1 stop27h 00m

Bilbao

Thu 12/25

11:35 am-6:45 pm

1 stop16h 10m

$642

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 7/16

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Wed 12/24

7:20 am-6:45 pm

1 stop20h 25m

$646

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 5/13

8:00 pm-8:15 am

1 stop27h 15m

Bilbao

Wed 5/21

9:35 pm-4:10 pm

1 stop27h 35m

$652

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 7/13

7:40 pm-6:45 pm

2 stops38h 05m

Bilbao

Wed 12/24

7:20 am-9:39 am

2 stops35h 19m

$656

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 5/13

3:05 pm-4:40 pm

1 stop16h 35m

Bilbao

Wed 5/21

12:00 pm-11:45 am

1 stop32h 45m

$694

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 5/6

5:45 pm-4:55 pm

1 stop14h 10m

Bilbao

Wed 5/14

9:15 am-8:35 pm

2 stops20h 20m

$744

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 5/19

7:30 pm-8:15 pm

1 stop15h 45m

Bilbao

Mon 5/26

10:25 am-4:10 pm

1 stop14h 45m

$801

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 6/1

9:05 pm-5:35 pm

1 stop35h 30m

Bilbao

Wed 6/11

3:10 pm-6:00 pm

1 stop35h 50m

$901

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 results
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Best time to book a flight from Fremont to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Fremont 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 Fremont to Bilbao

How far ahead should I book a flight from Fremont to Bilbao?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Bilbao. Price data was last updated on April 25, 2025.

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont to Bilbao. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Fremont to Bilbao (average of $541). Flying from Fremont 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 FR8 to BIO?

Find hourly flight availability from Fremont 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Fremont to Bilbao as you normally would.

What is the cheapest day to fly from Fremont to Bilbao?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Bilbao. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Fremont to Bilbao flight should consider departing on Sunday 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.

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 May 1, 2025.
Read reviews from past customers who have flown Delta, KLM and SWISS from Fremont to Bilbao. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

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

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

  • What airport do you fly into for flights to Bilbao from Fremont?

    Bilbao (BIO), located 3.0 mi from the city center, is the airport you fly into when you book flights from Fremont to Bilbao. 7 airlines have flights to Bilbao from Fremont on a regular basis. Booking flights from Fremont to Bilbao should not be difficult; the airport handles an average of 0 inbound flights from Fremont per day.

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

    One-way options have recently been found by users for as low as $343 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Vueling from $375 and Aer Lingus from $492 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Fremont 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 Fremont to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Fremont to Bilbao (average of $541). Flying from Fremont 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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Alternative routes for Fremont to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Fremont to Bilbao

Discover the top 7 airlines that operate flights from Fremont 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$501Average$1,062FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$557Average$1,007FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$599Average$1,275FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$600Average$992FlexibilityNo cancel feeOn-time69%
KLMCheapest$620Average$879FlexibilityNo cancel feeOn-time75%
DeltaCheapest$640Average$973FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$703Average$1,109FlexibilityNo cancel feeOn-time77%

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