San Francisco

$400+ Cheap flights from Bilbao (BIO) to San Francisco (SFO)

BIO — SFO
Dec 10 — Dec 171
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Cheap flight deals from Bilbao to San Francisco

Cheapest flights from Bilbao to San Francisco

Thu 12/2412:25 pm -
1 stop16h 45m
Wed 1/69:40 pm -
1 stop15h 15m
Deal found 11/10$538
Thu 12/36:45 am -
2 stops35h 11m
Thu 12/106:00 am -
2 stops20h 00m
Deal found 11/10$544
Tue 12/226:45 am -
2 stops25h 17m
Tue 1/511:30 pm -
2 stops38h 20m
Deal found 11/10$546
Mon 12/216:45 am -
1 stop22h 25m
Tue 1/59:40 pm -
1 stop15h 15m
Deal found 11/10$583
Mon 12/216:45 am -
1 stop14h 50m
Mon 1/49:04 am -
2 stops29h 06m
Deal found 11/10$585
Tue 12/226:45 am -
2 stops21h 12m
Sun 1/36:53 pm -
2 stops37h 07m
Deal found 11/10$591
Wed 12/2311:45 am -
1 stop16h 50m
Mon 1/49:40 pm -
1 stop16h 30m
Deal found 11/10$595
Thu 12/39:15 am -
2 stops19h 59m
Thu 12/105:00 am -
2 stops18h 30m
Deal found 11/8$596

Find flight deals from Bilbao to San Francisco

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$505
(Expedia)

One-way from

$400
(FlightHub)

Popular in

July

Cheapest in

June

Average price

$577
Provider with most accurate pricing for Bilbao-San Francisco flight deals.
Provider most trusted by Cheapflights users for Bilbao-San Francisco flights.
From Bilbao to San Francisco
One-way flight from Bilbao to San Francisco
Highest demand for flights based on searches. 12% potential increase in price ($100 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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

Thu 12/10

12:10 pm-4:05 pm

1 stop36h 55m

San Francisco

Wed 12/31

12:00 am-9:00 am

Nonstop0h 00m

$400

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 12/3

6:45 am-8:56 am

2 stops35h 11m

San Francisco

Thu 12/10

6:00 am-11:00 am

2 stops20h 00m

$544

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Wed 12/23

11:45 am-7:35 pm

1 stop16h 50m

San Francisco

Fri 1/8

6:35 am-10:50 pm

2 stops31h 15m

$598

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Wed 1/20

6:50 am-11:45 am

1 stop13h 55m

San Francisco

Wed 1/27

1:50 pm-4:30 pm

1 stop17h 40m

$677

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Fri 11/20

6:50 am-11:45 am

1 stop13h 55m

San Francisco

Sat 12/5

9:59 am-5:25 pm

2 stops22h 26m

$722

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Thu 12/24

6:50 am-11:45 am

1 stop13h 55m

San Francisco

Wed 1/6

3:10 pm-10:30 pm

1 stop22h 20m

$914

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Fri 11/20

6:45 am-4:35 pm

2 stops18h 50m

San Francisco

Sat 12/5

9:40 pm-11:20 pm

1 stop16h 40m

$928

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Mon 12/14

12:25 pm-8:10 pm

1 stop16h 45m

San Francisco

Sat 1/2

11:59 pm-11:00 am

2 stops26h 01m

$956

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Fri 11/27

7:30 am-7:35 pm

1 stop21h 05m

San Francisco

Fri 12/11

11:59 pm-10:50 pm

2 stops37h 51m

$986

BilbaoSan Francisco

BIO Bilbao - SFO San Francisco

BIOSFO

Bilbao

Mon 11/16

11:55 am-4:30 pm

1 stop37h 35m

San Francisco

Mon 11/23

6:35 pm-4:15 pm

1 stop36h 40m

$1,032

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Bilbao-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bilbao-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bilbao-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bilbao to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Bilbao with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Bilbao to San Francisco

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

The price you pay for your flight from Bilbao to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Bilbao to San Francisco?

Currently, June is the cheapest month in which you can book a flight from Bilbao to San Francisco (average of $553). Flying from Bilbao to San Francisco in July is currently the most expensive (average of $974). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Bilbao to San Francisco?

Airfare is below average for this route at the moment.

Bilbao to San Francisco flights typically cost between $569 and $789 in February.
The cheapest round-trip price found within the last 5 days was $505 on Iberia (Feb 15-Feb 25).

Reviews of airlines servicing San Francisco

Read reviews from past customers who have flown United Airlines from Bilbao to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Food

6.7

Boarding

7.7

Crew

8.1

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Comfort

7.3

Food

6.7

Boarding

7.7

Crew

8.1

Overall

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

  • How long is the flight from Bilbao to San Francisco?

    A quick flight from Bilbao to San Francisco can take about 13h 55m. United Airlines provides one of the quickest options available for as low as $677. Airlines will cover a distance of 5678 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Bilbao to San Francisco round-trip?

    United Airlines, at $768, was found to be the cheapest airline from Bilbao to San Francisco..

  • What are the cheapest airlines to fly from Bilbao to San Francisco one-way?

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at $388. KLM flights start at $391 while deals on American Airlines start at $424 one-way.

  • Can I find deals for flights from Bilbao to San Francisco that include hotel bookings?

    Yes. In addition to deals on Bilbao to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to San Francisco.

  • Can I find deals for business class flights from Bilbao to San Francisco?

    Yes. Cheapflights offers flight deals from Bilbao to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bilbao to San Francisco?

    Currently, June is the cheapest month in which you can book a flight from Bilbao to San Francisco (average of $553). Flying from Bilbao to San Francisco in July is currently the most expensive (average of $974). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Hayward
Emeryville
Newark
Burlingame
San Bruno
Rancho Cordova
Vallejo
Cupertino
Fairfield
Redwood City
San Carlos
Sunnyvale
Turlock
Morgan Hill
San Ramon
Milpitas

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Alternative routes for Bilbao to San Francisco

Top airline flying from Bilbao to San Francisco

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$768Average$917FlexibilityNo cancel feeOn-time69%

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