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Cheap flights from Bilbao to San Francisco from $387

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 6/9. 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

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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.
Finnair Logo
6:45 am - 4:10 pm
BIO
-
SFO
18h 25m
1 stop
Finnair Logo
5:45 pm - 11:15 pm
SFO
-
BIO
20h 30m
1 stop
$524Finnair
Mon, May 4 - Mon, May 18
Finnair Logo
6:45 am - 4:10 pm
BIO
-
SFO
18h 25m
1 stop
Finnair Logo
5:45 pm - 11:15 pm
SFO
-
BIO
20h 30m
1 stop
$529Finnair
Mon, May 4 - Mon, May 18
Finnair Logo
6:45 am - 11:51 pm
BIO
-
SFO
26h 06m
2 stops
Finnair Logo
5:45 pm - 11:15 pm
SFO
-
BIO
20h 30m
1 stop
$530Finnair
Mon, May 4 - Mon, May 18
Multiple Airlines Logo
9:15 am - 4:10 pm
BIO
-
SFO
15h 55m
1 stop
Multiple Airlines Logo
5:45 pm - 4:55 pm
SFO
-
BIO
14h 10m
1 stop
$531Multiple Airlines
Mon, May 4 - Mon, May 18
Multiple Airlines Logo
9:15 am - 4:10 pm
BIO
-
SFO
15h 55m
1 stop
Multiple Airlines Logo
5:45 pm - 4:55 pm
SFO
-
BIO
14h 10m
1 stop
$532Multiple Airlines
Mon, May 4 - Mon, May 18
Multiple Airlines Logo
6:45 am - 11:51 pm
BIO
-
SFO
26h 06m
2 stops
Multiple Airlines Logo
5:45 pm - 11:15 pm
SFO
-
BIO
20h 30m
1 stop
$536Multiple Airlines
Mon, May 4 - Mon, May 18
Multiple Airlines Logo
6:45 am - 11:51 pm
BIO
-
SFO
26h 06m
2 stops
Multiple Airlines Logo
5:45 pm - 11:15 pm
SFO
-
BIO
20h 30m
1 stop
$537Multiple Airlines
Mon, May 4 - Mon, May 18
Iberia Logo
6:45 am - 4:10 pm
BIO
-
SFO
18h 25m
1 stop
Iberia Logo
5:45 pm - 8:30 am
SFO
-
BIO
29h 45m
1 stop
$540Iberia
Mon, May 4 - Mon, May 18
Iberia Logo
1:30 pm - 11:54 pm
BIO
-
SFO
19h 24m
2 stops
Iberia Logo
5:45 pm - 8:30 am
SFO
-
BIO
29h 45m
1 stop
$548Iberia
Thu, Apr 16 - Thu, Apr 30
Iberia Logo
6:45 am - 4:10 pm
BIO
-
SFO
18h 25m
1 stop
Iberia Logo
2:57 pm - 4:55 pm
SFO
-
BIO
16h 58m
2 stops
$565Iberia
Thu, Apr 16 - Mon, Apr 20

Iberia flights from Bilbao to San Francisco

Our best Iberia deals on Bilbao to San Francisco flight tickets
Iberia
May 4
BIO6:45 amBilbao
18h 25m
1 stop
SFO4:10 pmSan Francisco
May 18
SFO5:45 pmSan Francisco
29h 45m
1 stop
BIO8:30 amBilbao
$540
Iberia
May 4
BIO6:45 amBilbao
18h 25m
1 stop
SFO4:10 pmSan Francisco
May 18
SFO5:45 pmSan Francisco
29h 45m
1 stop
BIO8:30 amBilbao
$541
Iberia
Apr 16
BIO1:30 pmBilbao
19h 24m
2 stops
SFO11:54 pmSan Francisco
Apr 30
SFO5:45 pmSan Francisco
29h 45m
1 stop
BIO8:30 amBilbao
$548

United Airlines flights from Bilbao to San Francisco

Our best United Airlines deals on Bilbao to San Francisco flight tickets
United Airlines
Apr 8
BIO6:50 amBilbao
17h 35m
1 stop
SFO3:25 pmSan Francisco
Apr 12
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
$630
United Airlines
Apr 8
BIO6:50 amBilbao
17h 35m
1 stop
SFO3:25 pmSan Francisco
Apr 13
SFO1:45 pmSan Francisco
24h 40m
1 stop
BIO11:25 pmBilbao
$632
United Airlines
Apr 8
BIO6:50 amBilbao
14h 50m
1 stop
SFO12:40 pmSan Francisco
Apr 13
SFO1:45 pmSan Francisco
24h 40m
1 stop
BIO11:25 pmBilbao
$634

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 April 4, 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

Mon 5/4

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

Mon 5/18

5:45 pm-11:15 pm

1 stop20h 30m

$524

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

Mon 5/18

5:45 pm-11:15 pm

1 stop20h 30m

$529

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

6:45 am-11:51 pm

2 stops26h 06m

San Francisco

Mon 5/18

5:45 pm-11:15 pm

1 stop20h 30m

$530
Quickest round-trip

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

9:15 am-4:10 pm

1 stop15h 55m

San Francisco

Mon 5/18

5:45 pm-4:55 pm

1 stop14h 10m

$531

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

9:15 am-4:10 pm

1 stop15h 55m

San Francisco

Mon 5/18

5:45 pm-4:55 pm

1 stop14h 10m

$532

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

6:45 am-11:51 pm

2 stops26h 06m

San Francisco

Mon 5/18

5:45 pm-11:15 pm

1 stop20h 30m

$536

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

6:45 am-11:51 pm

2 stops26h 06m

San Francisco

Mon 5/18

5:45 pm-11:15 pm

1 stop20h 30m

$537

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Mon 5/4

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

Mon 5/18

5:45 pm-8:30 am

1 stop29h 45m

$540

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 4/16

1:30 pm-11:54 pm

2 stops19h 24m

San Francisco

Thu 4/30

5:45 pm-8:30 am

1 stop29h 45m

$548

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 4/16

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

Mon 4/20

2:57 pm-4:55 pm

2 stops16h 58m

$565

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 November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $596.

How far in advance should I book a flight 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 $670 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 $516 on momondo.

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

You could potentially save up to 10% 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 April 2026, prices for Bilbao to San Francisco flights are approximately 61% 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

18h 25m

Direct flights

None
The fastest flight from Bilbao to San Francisco takes 18h 25m
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 18h 25m 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
9,541 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
Bodega Bay
Walnut Creek
Roseville
Hayward
Berkeley
Santa Clara
Big Sur
Fremont
Vallejo
Calistoga
Salinas
Daly City
Half Moon Bay
Milpitas
South San Francisco
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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