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$1,005+ Cheap flights from Oakland, CA (OAK) 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — BIO
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Oakland to Bilbao

Cheapest flights from Oakland to Bilbao
Explore the most affordable flight options available from Oakland to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Air France deal was found by Cheapflights users on 1/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/125:55 am
OAK
-
BIO
2 stops20h 35m
Multiple Airlines
Tue 2/2411:55 am
BIO
-
OAK
2 stops37h 17m
Multiple Airlines
Deal found 1/25$1,005

Find flight deals from Oakland to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,005
(Air France)

Popular in

June

Cheapest in

October

Average price

$650
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 Oakland to Bilbao
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($173 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland 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 January 27, 2026.
Use the filters below to find and compare flights from Oakland to Bilbao that are best for you.

Fly from

Oakland

Fly to

Bilbao

Route

Depart

Return

Price

OaklandBilbao

OAK - BIO

OAKBIO

Oakland

Thu 2/12

5:55 am-11:30 am

2 stops20h 35m

Bilbao

Tue 2/24

11:55 am-4:12 pm

2 stops37h 17m

$1,005

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Best time to book a flight from Oakland to Bilbao

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

What is the cheapest month to book a flight from Oakland, California to Bilbao?

Currently, March is the cheapest month in which you can book a flight from Oakland, California to Bilbao (average of $396). Flying from Oakland, California to Bilbao in June is currently the most expensive (average of $901). 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.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oakland 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 Oakland, California to Bilbao?

    Currently, March is the cheapest month in which you can book a flight from Oakland, California to Bilbao (average of $396). Flying from Oakland, California to Bilbao in June is currently the most expensive (average of $901). 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.

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