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Bilbao

$249+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIO
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Bilbao are usually found in October or September, booked 87 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 septiembre 15, 2025.

Round-trip from

$433
(Kiwi.com)

One-way from

$249
(LEVEL)

Popular in

June

Cheapest in

October

Average price

$682
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. 11% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/89:05 pmSFO - BIO
1 stop17h 20mLufthansa
mié. 10/156:45 amBIO - SFO
1 stop14h 55mLufthansa
Deal found 9/15$433
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mar. 9/239:01 amSFO - BIO
2 stops16h 44mUnited Airlines
mié. 10/87:15 amBIO - SFO
1 stop20h 45mUnited Airlines
Deal found 9/15$440
This CrystalTravel deal was found by Cheapflights users on 9/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/199:05 pmSFO - BIO
1 stop17h 20mLufthansa
jue. 10/3011:35 amBIO - SFO
1 stop17h 00mLufthansa
Deal found 9/13$448
This United Airlines deal was found by Cheapflights users on 9/15. 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. 9/229:05 pmSFO - BIO
1 stop17h 20mUnited Airlines
mié. 10/811:50 amBIO - SFO
1 stop16h 10mUnited Airlines
Deal found 9/15$453
This Gotogate deal was found by Cheapflights users on 9/13. 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. 11/244:35 pmSFO - BIO
1 stop16h 20mTAP AIR PORTUGAL
dom. 12/146:40 pmBIO - SFO
1 stop28h 55mTAP AIR PORTUGAL
Deal found 9/13$456
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mar. 9/239:01 amSFO - BIO
2 stops16h 44mUnited Airlines
jue. 10/96:45 amBIO - SFO
2 stops19h 52mUnited Airlines
Deal found 9/15$458
This Delta deal was found by Cheapflights users on 9/14. 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.
dom. 9/215:55 amSFO - BIO
2 stops25h 45mDelta
mié. 10/811:05 amBIO - SFO
1 stop16h 10mDelta
Deal found 9/14$461
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 10/142:00 pmSFO - BIO
1 stop24h 25mUnited Airlines
mar. 10/217:15 amBIO - SFO
2 stops26h 40mUnited Airlines
Deal found 9/14$463
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 10/2910:30 amSFO - BIO
2 stops23h 35mUnited Airlines
mié. 11/511:35 amBIO - SFO
1 stop36h 15mUnited Airlines
Deal found 9/14$467
This United Airlines deal was found by Cheapflights users on 9/15. 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.
mié. 10/812:10 pmSFO - BIO
2 stops20h 40mUnited Airlines
mié. 10/1511:50 amBIO - SFO
2 stops22h 05mUnited Airlines
Deal found 9/15$468
This Delta deal was found by Cheapflights users on 9/14. 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.
dom. 9/218:25 pmSFO - BIO
1 stop29h 00mDelta
jue. 10/96:50 amBIO - SFO
2 stops18h 15mDelta
Deal found 9/14$469

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 septiembre 15, 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

mar. 10/14

2:00 pm-11:25 pm

1 stop24h 25m

Bilbao

mar. 10/21

6:45 am-12:40 pm

1 stop14h 55m

$461

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

mar. 10/14

10:40 am-4:40 pm

2 stops21h 00m

Bilbao

mar. 10/21

6:50 am-11:45 am

1 stop13h 55m

$462

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

mié. 11/19

7:00 am-11:30 am

2 stops19h 30m

Bilbao

vie. 11/28

7:25 am-1:25 pm

1 stop15h 00m

$496

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

mié. 11/12

9:40 pm-11:05 pm

1 stop16h 25m

Bilbao

dom. 11/16

6:45 am-12:40 pm

1 stop14h 55m

$502

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

jue. 10/30

2:30 pm-11:05 pm

1 stop24h 35m

Bilbao

jue. 11/6

11:35 am-7:35 pm

1 stop17h 00m

$503

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

mié. 1/7

1:30 pm-6:05 pm

1 stop19h 35m

Bilbao

jue. 1/22

7:25 am-2:50 pm

1 stop16h 25m

$507

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

mar. 1/6

9:40 pm-11:05 pm

1 stop16h 25m

Bilbao

mar. 1/20

11:35 am-6:45 pm

1 stop16h 10m

$509

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

dom. 1/11

1:35 pm-4:40 pm

1 stop18h 05m

Bilbao

jue. 1/22

7:25 am-2:50 pm

1 stop16h 25m

$511

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

dom. 10/19

8:10 pm-8:15 am

1 stop27h 05m

$249

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

sáb. 10/18

8:10 pm-8:15 am

1 stop27h 05m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 18 results
1
2

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 September 12, 2025.

Booking 86 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 $1,136). 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 septiembre 15, 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.

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 septiembre 15, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from Fremont to Bilbao to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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.
Iberia
7.0
Good
2,924 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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.
Lufthansa
6.8
Okay
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

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. 6 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.

  • How long is the flight from Fremont to Bilbao?

    For as low as $462, United Airlines can have you in Bilbao from Fremont in 21h. Airlines will cover a distance of 5678 mi. This flight may include one or multiple stops.

  • 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 $1,136). 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 6 airlines flying from Fremont to Bilbao

Discover the top 6 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$427Average$788FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$552Average$885FlexibilityNo cancel feeOn-time76%
IberiaCheapest$589Average$1,053FlexibilityNo cancel feeOn-time77%
KLMCheapest$612Average$779FlexibilityNo cancel feeOn-time75%
DeltaCheapest$649Average$901FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$651Average$980FlexibilityNo cancel feeOn-time69%

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