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Cheap flights from Bilbao to San Francisco from $348

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 3/17. 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.
TAP AIR PORTUGAL Logo
12:15 pm - 4:50 pm
BIO
-
SFO
37h 35m1 stop
TAP AIR PORTUGAL Logo
7:55 pm - 5:35 pm
SFO
-
BIO
36h 40m1 stop
$466TAP AIR PORTUGAL
Thu, Apr 16 - Thu, Apr 23
Iberia Logo
9:15 am - 8:10 pm
BIO
-
SFO
19h 55m2 stops
Iberia Logo
11:15 am - 4:55 pm
SFO
-
BIO
20h 40m2 stops
$476Iberia
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
9:15 am - 8:25 pm
BIO
-
SFO
20h 10m2 stops
American Airlines Logo
7:00 am - 12:50 pm
SFO
-
BIO
20h 50m2 stops
$486American Airlines
Thu, Feb 5 - Thu, Feb 26
Iberia Logo
9:15 am - 11:36 pm
BIO
-
SFO
23h 21m2 stops
Iberia Logo
6:00 am - 8:30 am
SFO
-
BIO
17h 30m2 stops
$487Iberia
Tue, Feb 3 - Thu, Feb 19
Air France Logo
7:25 am - 1:25 pm
BIO
-
SFO
15h 00m1 stop
Air France Logo
3:40 pm - 5:20 pm
SFO
-
BIO
16h 40m1 stop
$516Air France
Thu, Feb 5 - Thu, Feb 26
Iberia Logo
9:15 am - 9:16 pm
BIO
-
SFO
21h 01m2 stops
Iberia Logo
10:36 am - 4:55 pm
SFO
-
BIO
21h 19m2 stops
$521Iberia
Fri, Feb 13 - Fri, Feb 20
Multiple Airlines Logo
5:15 pm - 11:45 am
BIO
-
SFO
27h 30m1 stop
Multiple Airlines Logo
8:10 pm - 10:00 pm
SFO
-
BIO
16h 50m1 stop
$523Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Delta Logo
6:50 am - 11:50 am
BIO
-
SFO
14h 00m1 stop
Delta Logo
7:10 am - 11:30 am
SFO
-
BIO
19h 20m2 stops
$525Delta
Thu, Feb 5 - Thu, Feb 26
Multiple Airlines Logo
6:50 am - 3:59 pm
BIO
-
SFO
18h 09m2 stops
Multiple Airlines Logo
8:10 pm - 10:00 pm
SFO
-
BIO
16h 50m1 stop
$528Multiple Airlines
Thu, Apr 16 - Wed, Apr 22
Iberia Logo
1:30 pm - 12:21 am
BIO
-
SFO
19h 51m2 stops
Iberia Logo
5:45 pm - 4:55 pm
SFO
-
BIO
14h 10m1 stop
$529Iberia
Thu, Apr 16 - Thu, Apr 23

Iberia flights from Bilbao to San Francisco

Our best Iberia deals on Bilbao to San Francisco flight tickets
Iberia
Jan 28
BIO9:15 amBilbao
19h 55m
2 stops
SFO8:10 pmSan Francisco
Feb 4
SFO11:15 amSan Francisco
20h 40m
2 stops
BIO4:55 pmBilbao
$476
Find similar
Iberia
Feb 3
BIO9:15 amBilbao
23h 21m
2 stops
SFO11:36 pmSan Francisco
Feb 19
SFO6:00 amSan Francisco
17h 30m
2 stops
BIO8:30 amBilbao
$487
Find similar
Iberia
Feb 13
BIO9:15 amBilbao
21h 01m
2 stops
SFO9:16 pmSan Francisco
Feb 20
SFO10:36 amSan Francisco
21h 19m
2 stops
BIO4:55 pmBilbao
$521
Find similar

TAP AIR PORTUGAL flights from Bilbao to San Francisco

Our best TAP AIR PORTUGAL deals on Bilbao to San Francisco flight tickets
TAP AIR PORTUGAL
Apr 16
BIO12:15 pmBilbao
37h 35m
1 stop
SFO4:50 pmSan Francisco
Apr 23
SFO7:55 pmSan Francisco
36h 40m
1 stop
BIO5:35 pmBilbao
$466
Find similar
TAP AIR PORTUGAL
Feb 27
BIO6:40 pmBilbao
29h 05m
1 stop
SFO2:45 pmSan Francisco
Mar 2
SFO4:35 pmSan Francisco
16h 20m
1 stop
BIO5:55 pmBilbao
$586
Find similar
TAP AIR PORTUGAL
Feb 27
BIO6:40 pmBilbao
29h 05m
1 stop
SFO2:45 pmSan Francisco
Mar 2
SFO4:35 pmSan Francisco
16h 20m
1 stop
BIO5:55 pmBilbao
$587
Find similar

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 December 31, 2025.
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

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 4/16

12:15 pm-4:50 pm

1 stop37h 35m

San Francisco

Thu 4/23

7:55 pm-5:35 pm

1 stop36h 40m

$466

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 1/28

9:15 am-8:10 pm

2 stops19h 55m

San Francisco

Wed 2/4

11:15 am-4:55 pm

2 stops20h 40m

$476

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 2/5

9:15 am-8:25 pm

2 stops20h 10m

San Francisco

Thu 2/26

7:00 am-12:50 pm

2 stops20h 50m

$486

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Tue 2/3

9:15 am-11:36 pm

2 stops23h 21m

San Francisco

Thu 2/19

6:00 am-8:30 am

2 stops17h 30m

$487

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 2/5

7:25 am-1:25 pm

1 stop15h 00m

San Francisco

Thu 2/26

3:40 pm-5:20 pm

1 stop16h 40m

$516

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Fri 2/13

9:15 am-9:16 pm

2 stops21h 01m

San Francisco

Fri 2/20

10:36 am-4:55 pm

2 stops21h 19m

$521

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Wed 4/15

5:15 pm-11:45 am

1 stop27h 30m

San Francisco

Wed 4/22

8:10 pm-10:00 pm

1 stop16h 50m

$523

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 2/5

6:50 am-11:50 am

1 stop14h 00m

San Francisco

Thu 2/26

7:10 am-11:30 am

2 stops19h 20m

$525

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 4/16

6:50 am-3:59 pm

2 stops18h 09m

San Francisco

Wed 4/22

8:10 pm-10:00 pm

1 stop16h 50m

$528

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

Thu 4/16

1:30 pm-12:21 am

2 stops19h 51m

San Francisco

Thu 4/23

5:45 pm-4:55 pm

1 stop14h 10m

$529

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 cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $538.

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 $631 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 $468 on momondo.

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

You could potentially save up to 20% 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 December 2025, prices for Bilbao to San Francisco flights are approximately 119% 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

  • How far is Bilbao to San Francisco by plane?

    The distance between Bilbao and San Francisco is about 5671.4 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 $538Free CancellationRating
7.4
9,129 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
Roseville
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Fremont
Daly City
Half Moon Bay
Vallejo
Livermore
Salinas
Sunnyvale
Turlock

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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