How does KAYAK find such low prices on flights from California to Bilbao?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Bilbao.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Bilbao?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from California is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from California to Bilbao?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to California with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Bilbao?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$331 CHEAP FLIGHTS from California to Bilbao

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Flight Deals

Cheap Flights from California to Bilbao

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from California to Bilbao

Mon, Oct 5 - Tue, Oct 20

7:35 pm - 8:05 pmSFO San Francisco-BIO Bilbao

15h 30m1 stop Zurich

8:55 pm - 4:15 pmBIO Bilbao-SFO San Francisco

28h 20m1 stop Zurich

$586SWISS

Mon, Oct 5 - Tue, Oct 20

7:35 pm - 8:05 pmSFO San Francisco-BIO Bilbao

15h 30m1 stop Zurich

8:55 pm - 4:15 pmBIO Bilbao-SFO San Francisco

28h 20m1 stop Zurich

$587SWISS

Mon, Oct 5 - Wed, Oct 14

5:15 pm - 11:25 pmSAN San Diego-BIO Bilbao

21h 10m1 stop Munich Franz Josef Strauss

7:15 am - 3:25 pmBIO Bilbao-SAN San Diego

17h 10m1 stop Munich Franz Josef Strauss

$600Lufthansa

Wed, Jan 20 - Mon, Jan 25

6:00 pm - 11:15 pmSAN San Diego-BIO Bilbao

20h 15m2 stops London Heathrow Madrid Barajas

5:05 pm - 4:10 pmBIO Bilbao-SAN San Diego

32h 05m1 stop London Heathrow

$601Iberia

Wed, Jan 20 - Mon, Jan 25

6:00 pm - 11:15 pmSAN San Diego-BIO Bilbao

20h 15m2 stops London Heathrow Madrid Barajas

9:35 pm - 8:30 amBIO Bilbao-SAN San Diego

19h 55m2 stops Madrid Barajas Dallas/Fort Worth

$605Iberia

Mon, Oct 12 - Tue, Oct 20

5:15 pm - 11:25 pmSAN San Diego-BIO Bilbao

21h 10m1 stop Munich Franz Josef Strauss

7:15 am - 3:25 pmBIO Bilbao-SAN San Diego

17h 10m1 stop Munich Franz Josef Strauss

$607Lufthansa

Mon, Oct 5 - Tue, Oct 20

3:05 pm - 9:50 amSFO San Francisco-BIO Bilbao

33h 45m1 stop Paris Charles de Gaulle

6:45 am - 11:45 amBIO Bilbao-SFO San Francisco

14h 00m1 stop Amsterdam Schiphol

$613Delta

Mon, Oct 5 - Tue, Oct 20

3:05 pm - 10:00 pmSFO San Francisco-BIO Bilbao

21h 55m1 stop Paris Charles de Gaulle

7:10 am - 5:05 pmBIO Bilbao-SFO San Francisco

18h 55m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$617KLM

Mon, Oct 5 - Tue, Oct 20

3:05 pm - 9:50 amSFO San Francisco-BIO Bilbao

33h 45m1 stop Paris Charles de Gaulle

6:45 am - 5:05 pmBIO Bilbao-SFO San Francisco

19h 20m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$618Delta

Mon, Oct 5 - Tue, Oct 20

2:15 pm - 4:30 pmSFO San Francisco-BIO Bilbao

17h 15m2 stops Seattle/Tacoma Intl Amsterdam Schiphol

7:10 am - 5:05 pmBIO Bilbao-SFO San Francisco

18h 55m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$629KLM

Recent last minute flight deals from California to Bilbao

Mon, Sep 21 - Wed, Sep 30

3:05 pm - 10:00 pmSFO San Francisco-BIO Bilbao

21h 55m1 stop Paris Charles de Gaulle

7:10 am - 12:50 pmBIO Bilbao-SFO San Francisco

14h 40m1 stop Paris Charles de Gaulle

$613Air France

Mon, Sep 21 - Wed, Sep 30

6:00 am - 9:50 amSFO San Francisco-BIO Bilbao

18h 50m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

7:10 am - 12:50 pmBIO Bilbao-SFO San Francisco

14h 40m1 stop Paris Charles de Gaulle

$617Delta

Sun, Sep 20 - Wed, Sep 30

12:55 am - 9:50 amSFO San Francisco-BIO Bilbao

23h 55m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

7:10 am - 7:58 pmBIO Bilbao-SFO San Francisco

21h 48m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$627Delta

Tue, Sep 22 - Thu, Oct 8

6:25 pm - 5:30 pmLAX Los Angeles-BIO Bilbao

14h 05m1 stop Paris Charles de Gaulle

7:10 am - 6:44 pmBIO Bilbao-LAX Los Angeles

20h 34m1 stop Paris Charles de Gaulle

$650Air France

Wed, Sep 23 - Sun, Sep 27

4:45 pm - 4:30 pmLAX Los Angeles-BIO Bilbao

14h 45m1 stop Amsterdam Schiphol

7:10 am - 12:55 pmBIO Bilbao-LAX Los Angeles

14h 45m1 stop Paris Charles de Gaulle

$847Multiple Airlines

Tue, Sep 22 - Sun, Oct 4

9:05 pm - 11:25 pmSFO San Francisco-BIO Bilbao

17h 20m1 stop Munich Franz Josef Strauss

6:50 am - 7:50 pmBIO Bilbao-SFO San Francisco

22h 00m1 stop Frankfurt am Main

$871Lufthansa

Mon, Sep 21 - Wed, Sep 30

9:05 pm - 11:25 pmSFO San Francisco-BIO Bilbao

17h 20m1 stop Munich Franz Josef Strauss

6:50 am - 12:40 pmBIO Bilbao-SFO San Francisco

14h 50m1 stop Frankfurt am Main

$875Lufthansa

Mon, Sep 21 - Wed, Sep 30

9:05 pm - 11:25 pmSFO San Francisco-BIO Bilbao

17h 20m1 stop Munich Franz Josef Strauss

7:15 am - 9:48 pmBIO Bilbao-SFO San Francisco

23h 33m2 stops Munich Franz Josef Strauss Vancouver Intl

$888Multiple Airlines

Tue, Sep 22 - Sun, Oct 4

9:05 pm - 11:25 pmSFO San Francisco-BIO Bilbao

17h 20m1 stop Munich Franz Josef Strauss

6:50 am - 11:59 pmBIO Bilbao-SFO San Francisco

26h 09m2 stops Frankfurt am Main Los Angeles

$949United Airlines

Fri, Sep 18 - Tue, Sep 22

12:29 pm - 10:50 pmSFO San Francisco-BIO Bilbao

25h 21m2 stops Los Angeles Frankfurt am Main

6:50 am - 7:50 pmBIO Bilbao-SFO San Francisco

22h 00m1 stop Frankfurt am Main

$956United Airlines

Useful Info

Low season	February
High season	August
Cheapest flight	$331

Best time to beat the crowds but there is an average 98% increase in price.

Most popular time to fly and prices are also 17% lower on average.

Flight from San Francisco to Bilbao

How does KAYAK find such low prices on flights from California to Bilbao?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Bilbao.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Bilbao?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to Bilbao?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to California with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Bilbao?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.