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Cheap flights from Bilbao to San Francisco from $400

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 10/6. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Bilbao to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:15 am - 9:10 pmBIO  Bilbao-SFO San Francisco
20h 55m2 stops Madrid Barajas Dallas/Fort Worth
American Airlines Logo
8:00 am - 12:50 pmSFO  San Francisco-BIO Bilbao
19h 50m2 stops Dallas/Fort Worth Madrid Barajas
$569American Airlines
Tue, Feb 2 - Tue, Mar 2
Iberia Logo
6:45 am - 4:20 pmBIO  Bilbao-SFO San Francisco
18h 35m1 stop Madrid Barajas
Iberia Logo
9:00 am - 12:45 pmSFO  San Francisco-BIO Bilbao
18h 45m2 stops Dallas/Fort Worth Madrid Barajas
$621Iberia
Thu, Sep 10 - Thu, Sep 24
Iberia Logo
9:15 am - 9:56 pmBIO  Bilbao-SFO San Francisco
21h 41m2 stops Madrid Barajas Chicago O'Hare Intl
Iberia Logo
10:32 am - 12:50 pmSFO  San Francisco-BIO Bilbao
17h 18m2 stops Chicago O'Hare Intl Madrid Barajas
$621Iberia
Tue, Oct 20 - Thu, Nov 12
Iberia Logo
6:45 am - 4:20 pmBIO  Bilbao-SFO San Francisco
18h 35m1 stop Madrid Barajas
Iberia Logo
1:27 pm - 4:55 pmSFO  San Francisco-BIO Bilbao
18h 28m2 stops Los Angeles Madrid Barajas
$621Iberia
Thu, Sep 3 - Thu, Sep 10
Iberia Logo
9:15 am - 9:39 pmBIO  Bilbao-SFO San Francisco
21h 24m2 stops Madrid Barajas Los Angeles
Iberia Logo
8:55 am - 12:50 pmSFO  San Francisco-BIO Bilbao
18h 55m2 stops Dallas/Fort Worth Madrid Barajas
$621Iberia
Tue, Oct 20 - Thu, Nov 12
Iberia Logo
9:15 am - 7:48 pmBIO  Bilbao-SFO San Francisco
19h 33m2 stops Madrid Barajas Chicago O'Hare Intl
Iberia Logo
1:27 pm - 4:55 pmSFO  San Francisco-BIO Bilbao
18h 28m2 stops Los Angeles Madrid Barajas
$626Iberia
Thu, Aug 27 - Thu, Sep 10
Iberia Logo
9:15 am - 8:23 pmBIO  Bilbao-SFO San Francisco
20h 08m2 stops Madrid Barajas Dallas/Fort Worth
Iberia Logo
1:27 pm - 4:55 pmSFO  San Francisco-BIO Bilbao
18h 28m2 stops Los Angeles Madrid Barajas
$626Iberia
Thu, Sep 3 - Thu, Sep 10
Iberia Logo
1:30 pm - 12:44 amBIO  Bilbao-SFO San Francisco
20h 14m2 stops Madrid Barajas Dallas/Fort Worth
Iberia Logo
8:33 am - 12:45 pmSFO  San Francisco-BIO Bilbao
19h 12m2 stops Miami Madrid Barajas
$626Iberia
Tue, Oct 6 - Mon, Oct 12
United Airlines Logo
6:45 am - 8:10 pmBIO  Bilbao-SFO San Francisco
22h 25m1 stop Frankfurt am Main
United Airlines Logo
7:00 am - 9:55 pmSFO  San Francisco-BIO Bilbao
29h 55m2 stops Newark Munich Franz Josef Strauss
$696United Airlines
Sat, Jan 16 - Wed, Jan 20
United Airlines Logo
6:45 am - 4:05 pmBIO  Bilbao-SFO San Francisco
18h 20m1 stop Frankfurt am Main
United Airlines Logo
9:40 pm - 9:55 pmSFO  San Francisco-BIO Bilbao
15h 15m1 stop Munich Franz Josef Strauss
$696United Airlines
Sat, Jan 16 - Wed, Jan 20

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Lufthansa flights from Bilbao to San Francisco

Our best Lufthansa deals on Bilbao to San Francisco flight tickets
Lufthansa
Oct 20
BIO6:50 amBilbao
14h 50m
1 stop
SFO12:40 pmSan Francisco
Nov 12
SFO2:45 pmSan Francisco
17h 15m
1 stop
BIO5:00 pmBilbao
$698
Lufthansa
Oct 20
BIO6:50 amBilbao
14h 50m
1 stop
SFO12:40 pmSan Francisco
Nov 12
SFO9:40 pmSan Francisco
15h 15m
1 stop
BIO9:55 pmBilbao
$703
Lufthansa
Oct 30
BIO6:45 amBilbao
22h 25m
1 stop
SFO9:10 pmSan Francisco
Nov 6
SFO9:40 pmSan Francisco
16h 30m
1 stop
BIO11:10 pmBilbao
$714

KLM flights from Bilbao to San Francisco

Our best KLM deals on Bilbao to San Francisco flight tickets
KLM
Sep 27
BIO5:15 pmBilbao
27h 30m
1 stop
SFO11:45 amSan Francisco
Oct 4
SFO8:10 pmSan Francisco
16h 50m
1 stop
BIO10:00 pmBilbao
$767
KLM
Sep 3
BIO6:45 amBilbao
14h 00m
1 stop
SFO11:45 amSan Francisco
Sep 10
SFO8:10 pmSan Francisco
16h 50m
1 stop
BIO10:00 pmBilbao
$769
KLM
Aug 27
BIO7:10 amBilbao
14h 40m
1 stop
SFO12:50 pmSan Francisco
Sep 10
SFO8:10 pmSan Francisco
16h 50m
1 stop
BIO10:00 pmBilbao
$837

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 August 15, 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 Bilbao - SFO San Francisco

BIOSFO

Bilbao

Tue 2/2

9:15 am-9:10 pm

2 stops20h 55m

San Francisco

Tue 3/2

8:00 am-12:50 pm

2 stops19h 50m

$569

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 9/10

6:45 am-4:20 pm

1 stop18h 35m

San Francisco

Thu 9/24

9:00 am-12:45 pm

2 stops18h 45m

$621

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Tue 10/20

9:15 am-9:56 pm

2 stops21h 41m

San Francisco

Thu 11/12

10:32 am-12:50 pm

2 stops17h 18m

$621

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 9/3

6:45 am-4:20 pm

1 stop18h 35m

San Francisco

Thu 9/10

1:27 pm-4:55 pm

2 stops18h 28m

$621

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Tue 10/20

9:15 am-9:39 pm

2 stops21h 24m

San Francisco

Thu 11/12

8:55 am-12:50 pm

2 stops18h 55m

$621

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 8/27

9:15 am-7:48 pm

2 stops19h 33m

San Francisco

Thu 9/10

1:27 pm-4:55 pm

2 stops18h 28m

$626

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 9/3

9:15 am-8:23 pm

2 stops20h 08m

San Francisco

Thu 9/10

1:27 pm-4:55 pm

2 stops18h 28m

$626

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Tue 10/6

1:30 pm-12:44 am

2 stops20h 14m

San Francisco

Mon 10/12

8:33 am-12:45 pm

2 stops19h 12m

$626

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Sat 1/16

6:45 am-8:10 pm

1 stop22h 25m

San Francisco

Wed 1/20

7:00 am-9:55 pm

2 stops29h 55m

$696
Quickest round-trip

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Sat 1/16

6:45 am-4:05 pm

1 stop18h 20m

San Francisco

Wed 1/20

9:40 pm-9:55 pm

1 stop15h 15m

$696

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

Prices are currently low for flights on this route.

Typical prices usually range from $774 to $940.
The lowest price recently found on this route was $621.

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of June, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $598.

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 $739 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 $608 on momondo.

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

You could potentially save up to 55% 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 August 2026, prices for Bilbao to San Francisco flights are approximately 18% cheaper 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 50m

Direct flights

None
The fastest flight from Bilbao to San Francisco takes 14h 50m
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 50m 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 $768Free CancellationRating
7.4
10,111 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
South San Francisco
Fremont
Berkeley
Bodega Bay
Hayward
Walnut Creek
Santa Clara
Vallejo
Roseville
Sonoma
Salinas
Sunnyvale
Milpitas
Daly City
Burlingame
Marina
Palo Alto

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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