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Cheap flights from San Francisco to Bilbao from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Bilbao departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:36 pm - 8:30 amSFO-BIO
23h 54m2 stops
American Airlines Logo
9:15 am - 9:37 pmBIO-SFO
21h 22m2 stops
$447American Airlines
Find Deal
Sun, Jan 18 - Tue, Feb 3
Lufthansa Logo
1:30 pm - 6:05 pmSFO-BIO
19h 35m1 stop
Lufthansa Logo
11:35 am - 6:55 pmBIO-SFO
16h 20m1 stop
$455Lufthansa
Find Deal
Sun, Jan 18 - Tue, Feb 3
Delta Logo
1:00 pm - 5:20 pmSFO-BIO
19h 20m2 stops
Delta Logo
7:25 am - 1:25 pmBIO-SFO
15h 00m1 stop
$457Delta
Find Deal
Sun, Jan 18 - Tue, Feb 3
Lufthansa Logo
9:25 pm - 9:55 pmSFO-BIO
15h 30m1 stop
Lufthansa Logo
6:45 am - 12:40 pmBIO-SFO
14h 55m1 stop
$499Lufthansa
Find Deal
Tue, Feb 17 - Tue, Feb 24
TAP AIR PORTUGAL Logo
4:35 pm - 5:55 pmSFO-BIO
16h 20m1 stop
TAP AIR PORTUGAL Logo
6:40 pm - 2:30 pmBIO-SFO
28h 50m1 stop
$500TAP AIR PORTUGAL
Find Deal
Mon, Feb 16 - Tue, Feb 24
United Airlines Logo
1:30 pm - 6:05 pmSFO-BIO
19h 35m1 stop
United Airlines Logo
6:45 am - 3:55 pmBIO-SFO
18h 10m1 stop
$508United Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
SWISS Logo
7:25 pm - 9:10 pmSFO-BIO
16h 45m1 stop
SWISS Logo
9:25 am - 4:30 pmBIO-SFO
16h 05m1 stop
$510SWISS
Find Deal
Wed, Feb 18 - Wed, Feb 25
Delta Logo
3:40 pm - 5:20 pmSFO-BIO
16h 40m1 stop
Delta Logo
7:25 am - 10:54 pmBIO-SFO
24h 29m2 stops
$515Delta
Find Deal
Wed, Jan 21 - Sun, Jan 25
Lufthansa Logo
9:40 pm - 11:20 pmSFO-BIO
16h 40m1 stop
Lufthansa Logo
7:25 am - 7:35 pmBIO-SFO
21h 10m1 stop
$518Lufthansa
Find Deal
Sat, Jan 10 - Sat, Jan 17
Delta Logo
9:00 am - 5:20 pmSFO-BIO
23h 20m2 stops
Delta Logo
7:25 am - 8:29 pmBIO-SFO
22h 04m2 stops
$520Delta
Find Deal
Wed, Jan 21 - Sun, Jan 25

TAP AIR PORTUGAL flights from San Francisco to Bilbao

Our best TAP AIR PORTUGAL deals on San Francisco to Bilbao flight tickets
TAP AIR PORTUGAL
Feb 16
SFO4:35 pmSan Francisco
16h 20m
1 stop
BIO5:55 pmBilbao
Feb 24
BIO6:40 pmBilbao
28h 50m
1 stop
SFO2:30 pmSan Francisco
$500
Find similar
TAP AIR PORTUGAL
Feb 16
SFO4:35 pmSan Francisco
16h 20m
1 stop
BIO5:55 pmBilbao
Feb 22
BIO6:40 pmBilbao
28h 55m
1 stop
SFO2:35 pmSan Francisco
$588
Find similar

SWISS flights from San Francisco to Bilbao

Our best SWISS deals on San Francisco to Bilbao flight tickets
SWISS
Feb 18
SFO7:25 pmSan Francisco
16h 45m
1 stop
BIO9:10 pmBilbao
Feb 25
BIO9:25 amBilbao
16h 05m
1 stop
SFO4:30 pmSan Francisco
$510
Find similar
SWISS
Feb 15
SFO5:25 pmSan Francisco
42h 30m
2 stops
BIO8:55 pmBilbao
Feb 26
BIO11:35 amBilbao
37h 55m
2 stops
SFO4:30 pmSan Francisco
$560
Find similar
SWISS
Feb 16
SFO7:25 pmSan Francisco
16h 30m
1 stop
BIO8:55 pmBilbao
Feb 22
BIO11:35 amBilbao
37h 55m
2 stops
SFO4:30 pmSan Francisco
$603
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Bilbao 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 November 26, 2025.
Use the filters below to find and compare flights from San Francisco to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 1/18

11:36 pm-8:30 am

2 stops23h 54m

Bilbao

Tue 2/3

9:15 am-9:37 pm

2 stops21h 22m

$447

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 1/18

1:30 pm-6:05 pm

1 stop19h 35m

Bilbao

Tue 2/3

11:35 am-6:55 pm

1 stop16h 20m

$455

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 1/18

1:00 pm-5:20 pm

2 stops19h 20m

Bilbao

Tue 2/3

7:25 am-1:25 pm

1 stop15h 00m

$457

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 2/17

9:25 pm-9:55 pm

1 stop15h 30m

Bilbao

Tue 2/24

6:45 am-12:40 pm

1 stop14h 55m

$499

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 2/16

4:35 pm-5:55 pm

1 stop16h 20m

Bilbao

Tue 2/24

6:40 pm-2:30 pm

1 stop28h 50m

$500

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 1/21

1:30 pm-6:05 pm

1 stop19h 35m

Bilbao

Sun 1/25

6:45 am-3:55 pm

1 stop18h 10m

$508

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 2/18

7:25 pm-9:10 pm

1 stop16h 45m

Bilbao

Wed 2/25

9:25 am-4:30 pm

1 stop16h 05m

$510

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 1/21

3:40 pm-5:20 pm

1 stop16h 40m

Bilbao

Sun 1/25

7:25 am-10:54 pm

2 stops24h 29m

$515

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sat 1/10

9:40 pm-11:20 pm

1 stop16h 40m

Bilbao

Sat 1/17

7:25 am-7:35 pm

1 stop21h 10m

$518

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 1/21

9:00 am-5:20 pm

2 stops23h 20m

Bilbao

Sun 1/25

7:25 am-8:29 pm

2 stops22h 04m

$520

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 Bilbao from

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

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 Bilbao?

The cheapest month to fly to Bilbao from San Francisco is in October. Flight prices, which tend to average around $559, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in October, then December is your next best option. Flight prices from San Francisco to Bilbao during December average around $642.

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from San Francisco to Bilbao is on a Sunday. Travelers who choose to depart for Bilbao on a Sunday will often find tickets for as low as $869. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,286. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the evening. Flights from San Francisco to Bilbao during this time can be as low as $958. At noon is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,217 per ticket.

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

You are more likely to see cheaper flights to Bilbao from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Bilbao for around $788 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bilbao from San Francisco for as low as $678 on momondo.

When to book flights from San Francisco to Bilbao

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

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

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

Fastest flight time

15h 15m

Direct flights

None
The fastest flight from San Francisco to Bilbao takes 15h 15m
There are no direct flights from San Francisco to Bilbao. There are no popular flight routes from San Francisco to Bilbao.
Search flight deals

  • How far is San Francisco to Bilbao by plane?

    There are 5671.4 mi between San Francisco and Bilbao. Flights usually cover this in 15h 15m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Francisco Airport to Bilbao Airport refresh daily.

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

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

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

    The travel and health documents required for your trip to Bilbao Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bilbao Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from San Francisco to Bilbao

Compare and see reviews for airlines that fly from San Francisco to Bilbao with momondo
Airline
Rating
Free Cancellation
Price
LEVELPriceFrom $427Free CancellationRating
0.0
Search LEVEL flights
SWISSPriceFrom $447Free CancellationRating
7.5
1,794 reviews
Search SWISS flights
KLMPriceFrom $470Free CancellationRating
7.7
1,422 reviews
Search KLM flights
LufthansaPriceFrom $472Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
IberiaPriceFrom $589Free CancellationRating
7.0
3,034 reviews
Search Iberia flights
United AirlinesPriceFrom $610Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
DeltaPriceFrom $675Free CancellationRating
7.9
7,998 reviews
Search Delta flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Getxo
Laredo
Lekeitio

Why use momondo?

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

It is quick and easy to find San Francisco to Bilbao 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 Bilbao that suits you.

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

Yes. momondo enables you to select and highlight flights to Bilbao from San Francisco with this policy.

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

momondo provides multiple filters to help you find the best flight to Bilbao from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Bilbao from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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