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Cheap flights from Bilbao to San Francisco from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bilbao to San Francisco departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Bilbao to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:15 am - 12:12 am
BIO
-
SFO
23h 57m
2 stops
British Airways Logo
7:00 am - 12:50 pm
SFO
-
BIO
20h 50m
2 stops
$541British Airways
Thu, Oct 15 - Mon, Nov 2
American Airlines Logo
9:15 am - 8:27 pm
BIO
-
SFO
20h 12m
2 stops
American Airlines Logo
6:01 am - 8:30 am
SFO
-
BIO
17h 29m
2 stops
$564American Airlines
Tue, Sep 22 - Tue, Sep 29
Iberia Logo
1:30 pm - 12:39 am
BIO
-
SFO
20h 09m
2 stops
Iberia Logo
5:55 pm - 11:15 pm
SFO
-
BIO
20h 20m
1 stop
$576Iberia
Wed, Sep 9 - Tue, Sep 29
Iberia Logo
9:35 pm - 4:20 pm
BIO
-
SFO
27h 45m
1 stop
Iberia Logo
5:55 pm - 11:15 pm
SFO
-
BIO
20h 20m
1 stop
$582Iberia
Wed, Sep 9 - Tue, Sep 29
Iberia Logo
1:30 pm - 12:12 am
BIO
-
SFO
19h 42m
2 stops
Iberia Logo
6:36 am - 8:30 am
SFO
-
BIO
17h 54m
2 stops
$593Iberia
Wed, Oct 14 - Sat, Oct 31
Iberia Logo
1:30 pm - 12:12 am
BIO
-
SFO
19h 42m
2 stops
Iberia Logo
1:29 pm - 11:15 pm
SFO
-
BIO
24h 46m
2 stops
$594Iberia
Fri, Sep 11 - Mon, Sep 28
Iberia Logo
1:30 pm - 12:12 am
BIO
-
SFO
19h 42m
2 stops
Iberia Logo
5:30 pm - 11:15 pm
SFO
-
BIO
20h 45m
2 stops
$595Iberia
Wed, Oct 14 - Mon, Nov 2
Iberia Logo
9:35 pm - 4:20 pm
BIO
-
SFO
27h 45m
1 stop
Iberia Logo
8:49 am - 11:15 pm
SFO
-
BIO
29h 26m
2 stops
$599Iberia
Wed, Sep 9 - Sat, Sep 26
Iberia Logo
6:45 am - 12:39 am
BIO
-
SFO
26h 54m
2 stops
Iberia Logo
12:22 pm - 4:55 pm
SFO
-
BIO
19h 33m
2 stops
$600Iberia
Wed, Sep 9 - Wed, Sep 30
Iberia Logo
9:35 pm - 4:20 pm
BIO
-
SFO
27h 45m
1 stop
Iberia Logo
1:29 pm - 11:15 pm
SFO
-
BIO
24h 46m
2 stops
$605Iberia
Mon, Sep 7 - Mon, Sep 28

Air Canada flights from Bilbao to San Francisco

Our best Air Canada deals on Bilbao to San Francisco flight tickets
Air Canada
May 29
BIO6:45 amBilbao
41h 37m
2 stops
SFO3:22 pmSan Francisco
Jun 8
SFO12:15 pmSan Francisco
20h 40m
2 stops
BIO5:55 pmBilbao
$804
Air Canada
Jun 1
BIO7:15 amBilbao
36h 05m
2 stops
SFO10:20 amSan Francisco
Jun 8
SFO12:15 pmSan Francisco
20h 40m
2 stops
BIO5:55 pmBilbao
$817
Air Canada
Jun 1
BIO6:50 amBilbao
20h 42m
2 stops
SFO6:32 pmSan Francisco
Jun 15
SFO12:15 pmSan Francisco
20h 40m
2 stops
BIO5:55 pmBilbao
$881

Iberia flights from Bilbao to San Francisco

Our best Iberia deals on Bilbao to San Francisco flight tickets
Iberia
Sep 9
BIO1:30 pmBilbao
20h 09m
2 stops
SFO12:39 amSan Francisco
Sep 29
SFO5:55 pmSan Francisco
20h 20m
1 stop
BIO11:15 pmBilbao
$576
Iberia
Sep 9
BIO9:35 pmBilbao
27h 45m
1 stop
SFO4:20 pmSan Francisco
Sep 29
SFO5:55 pmSan Francisco
20h 20m
1 stop
BIO11:15 pmBilbao
$582
Iberia
Oct 14
BIO1:30 pmBilbao
19h 42m
2 stops
SFO12:12 amSan Francisco
Oct 31
SFO6:36 amSan Francisco
17h 54m
2 stops
BIO8:30 amBilbao
$593

momondo Fare Finder

 
Customize your flight search to find flights from Bilbao to San Francisco 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, momondo users made 832,500 searches. Data last updated May 19, 2026.
Use the filters below to find and compare flights from Bilbao to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 10/15

9:15 am-12:12 am

2 stops23h 57m

San Francisco

Mon 11/2

7:00 am-12:50 pm

2 stops20h 50m

$541

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Tue 9/22

9:15 am-8:27 pm

2 stops20h 12m

San Francisco

Tue 9/29

6:01 am-8:30 am

2 stops17h 29m

$564

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 9/9

1:30 pm-12:39 am

2 stops20h 09m

San Francisco

Tue 9/29

5:55 pm-11:15 pm

1 stop20h 20m

$576

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 9/9

9:35 pm-4:20 pm

1 stop27h 45m

San Francisco

Tue 9/29

5:55 pm-11:15 pm

1 stop20h 20m

$582
Quickest round-trip

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 10/14

1:30 pm-12:12 am

2 stops19h 42m

San Francisco

Sat 10/31

6:36 am-8:30 am

2 stops17h 54m

$593

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Fri 9/11

1:30 pm-12:12 am

2 stops19h 42m

San Francisco

Mon 9/28

1:29 pm-11:15 pm

2 stops24h 46m

$594

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 10/14

1:30 pm-12:12 am

2 stops19h 42m

San Francisco

Mon 11/2

5:30 pm-11:15 pm

2 stops20h 45m

$595

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 9/9

9:35 pm-4:20 pm

1 stop27h 45m

San Francisco

Sat 9/26

8:49 am-11:15 pm

2 stops29h 26m

$599

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 9/9

6:45 am-12:39 am

2 stops26h 54m

San Francisco

Wed 9/30

12:22 pm-4:55 pm

2 stops19h 33m

$600

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 9/7

9:35 pm-4:20 pm

1 stop27h 45m

San Francisco

Mon 9/28

1:29 pm-11:15 pm

2 stops24h 46m

$605

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Bilbao to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Bilbao and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $597.

How far in advance should I book a flight from Bilbao to San Francisco?

You are more likely to see cheaper flights to San Francisco from Bilbao when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $710 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Bilbao for as low as $564 on momondo.

Can stopping save me money on Bilbao to San Francisco flights?

You could potentially save up to 17% on your flight if you consider stops on a Bilbao to San Francisco flight.

How have Bilbao to San Francisco flight prices changed over time?

As of May 2026, prices for Bilbao to San Francisco flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Bilbao to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Bilbao to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Bilbao to San Francisco (BIO to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bilbao to San Francisco

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Bilbao to San Francisco takes 14h 00m
There are no direct flights from Bilbao to San Francisco. There are no popular flight routes from Bilbao to San Francisco.
Search flight deals

Frequently asked questions about flying from Bilbao to San Francisco

  • How far is Bilbao to San Francisco by plane?

    The distance between Bilbao and San Francisco is about 5671.5 mi. Typically, this will take 14h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Bilbao Airport to San Francisco Airport?

    Prices for flights from Bilbao Airport to San Francisco Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Bilbao Airport to San Francisco Airport?

  • How old do you have to be to fly from Bilbao Airport to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bilbao Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Bilbao to San Francisco?

Best airlines flying from Bilbao to San Francisco

Compare and see reviews for airlines that fly from Bilbao to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $617Free CancellationRating
7.4
9,733 reviews
Search United Airlines flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Walnut Creek
Bodega Bay
Hayward
Roseville
Santa Clara
Berkeley
Fremont
Vallejo
Big Sur
Sunnyvale
Calistoga
South San Francisco
Salinas
Daly City
Milpitas
Pacific Grove

Why use momondo?

Why should I use momondo to find a flight deal from Bilbao to San Francisco?

It is quick and easy to find Bilbao to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

Can I find flights from Bilbao to San Francisco with flexible booking policies on momondo?

All flight searches from Bilbao to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Bilbao to San Francisco?

Once all potential Bilbao to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Bilbao to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Bilbao to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

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