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Cheap flights from San Francisco to Bilbao from $267

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 5/12. 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 San Francisco to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
7:35 pm - 8:15 pm
SFO
-
BIO
15h 40m
1 stop
SWISS Logo
9:00 pm - 4:15 pm
BIO
-
SFO
28h 15m
1 stop
$434SWISS
Mon, Apr 13 - Tue, Apr 21
TAP AIR PORTUGAL Logo
5:35 pm - 5:55 pm
SFO
-
BIO
16h 20m
1 stop
TAP AIR PORTUGAL Logo
6:40 pm - 3:35 pm
BIO
-
SFO
28h 55m
1 stop
$441TAP AIR PORTUGAL
Sat, Mar 14 - Sun, Mar 22
Lufthansa Logo
9:05 pm - 11:25 pm
SFO
-
BIO
17h 20m
1 stop
Lufthansa Logo
7:15 am - 7:00 pm
BIO
-
SFO
20h 45m
1 stop
$442Lufthansa
Wed, Apr 15 - Wed, Apr 22
SWISS Logo
7:35 pm - 8:15 pm
SFO
-
BIO
15h 40m
1 stop
SWISS Logo
8:50 am - 4:15 pm
BIO
-
SFO
16h 25m
1 stop
$449SWISS
Mon, Apr 13 - Fri, Apr 24
TAP AIR PORTUGAL Logo
4:35 pm - 11:30 am
SFO
-
BIO
33h 55m
1 stop
TAP AIR PORTUGAL Logo
12:25 pm - 4:35 pm
BIO
-
SFO
37h 10m
1 stop
$452TAP AIR PORTUGAL
Tue, Apr 7 - Wed, Apr 29
Lufthansa Logo
9:05 pm - 11:25 pm
SFO
-
BIO
17h 20m
1 stop
Lufthansa Logo
7:15 am - 7:00 pm
BIO
-
SFO
20h 45m
1 stop
$455Lufthansa
Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
9:05 pm - 11:25 pm
SFO
-
BIO
17h 20m
1 stop
United Airlines Logo
7:15 am - 7:00 pm
BIO
-
SFO
20h 45m
1 stop
$457United Airlines
Sun, Apr 12 - Tue, Apr 21
Multiple Airlines Logo
7:40 pm - 10:25 pm
SFO
-
BIO
17h 45m
1 stop
Multiple Airlines Logo
7:15 pm - 5:55 pm
BIO
-
SFO
31h 40m
1 stop
$460Multiple Airlines
Thu, Apr 16 - Sat, Apr 25
United Airlines Logo
11:20 pm - 10:50 am
SFO
-
BIO
26h 30m
2 stops
United Airlines Logo
7:15 am - 2:35 pm
BIO
-
SFO
16h 20m
1 stop
$461United Airlines
Tue, Mar 3 - Fri, Apr 10
Multiple Airlines Logo
7:40 pm - 10:25 pm
SFO
-
BIO
17h 45m
1 stop
Multiple Airlines Logo
7:15 pm - 5:55 pm
BIO
-
SFO
31h 40m
1 stop
$462Multiple Airlines
Tue, Apr 14 - Sat, Apr 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
Mar 14
SFO5:35 pmSan Francisco
16h 20m
1 stop
BIO5:55 pmBilbao
Mar 22
BIO6:40 pmBilbao
28h 55m
1 stop
SFO3:35 pmSan Francisco
$441
TAP AIR PORTUGAL
Apr 7
SFO4:35 pmSan Francisco
33h 55m
1 stop
BIO11:30 amBilbao
Apr 29
BIO12:25 pmBilbao
37h 10m
1 stop
SFO4:35 pmSan Francisco
$452
TAP AIR PORTUGAL
Jan 27
SFO10:50 amSan Francisco
39h 35m
2 stops
BIO11:25 amBilbao
Feb 1
BIO6:40 pmBilbao
28h 55m
1 stop
SFO2:35 pmSan Francisco
$986

Lufthansa flights from San Francisco to Bilbao

Our best Lufthansa deals on San Francisco to Bilbao flight tickets
Lufthansa
Apr 15
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Apr 22
BIO7:15 amBilbao
20h 45m
1 stop
SFO7:00 pmSan Francisco
$442
Lufthansa
Apr 14
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Apr 22
BIO7:15 amBilbao
20h 45m
1 stop
SFO7:00 pmSan Francisco
$455
Lufthansa
Apr 14
SFO1:50 pmSan Francisco
24h 35m
2 stops
BIO11:25 pmBilbao
Apr 21
BIO6:50 amBilbao
14h 50m
1 stop
SFO12:40 pmSan Francisco
$474

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 January 24, 2026.
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

Mon 4/13

7:35 pm-8:15 pm

1 stop15h 40m

Bilbao

Tue 4/21

9:00 pm-4:15 pm

1 stop28h 15m

$434

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sat 3/14

5:35 pm-5:55 pm

1 stop16h 20m

Bilbao

Sun 3/22

6:40 pm-3:35 pm

1 stop28h 55m

$441

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 4/15

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Wed 4/22

7:15 am-7:00 pm

1 stop20h 45m

$442

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 4/13

7:35 pm-8:15 pm

1 stop15h 40m

Bilbao

Fri 4/24

8:50 am-4:15 pm

1 stop16h 25m

$449

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 4/7

4:35 pm-11:30 am

1 stop33h 55m

Bilbao

Wed 4/29

12:25 pm-4:35 pm

1 stop37h 10m

$452

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 4/14

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Wed 4/22

7:15 am-7:00 pm

1 stop20h 45m

$455

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 4/12

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Tue 4/21

7:15 am-7:00 pm

1 stop20h 45m

$457

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Thu 4/16

7:40 pm-10:25 pm

1 stop17h 45m

Bilbao

Sat 4/25

7:15 pm-5:55 pm

1 stop31h 40m

$460

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 3/3

11:20 pm-10:50 am

2 stops26h 30m

Bilbao

Fri 4/10

7:15 am-2:35 pm

1 stop16h 20m

$461

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 4/14

7:40 pm-10:25 pm

1 stop17h 45m

Bilbao

Sat 4/25

7:15 pm-5:55 pm

1 stop31h 40m

$462

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 $556, 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 November is your next best option. Flight prices from San Francisco to Bilbao during November average around $625.

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 $806 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 $629 on momondo.

How have San Francisco to Bilbao flight prices changed over time?

As of January 2026, prices for San Francisco to Bilbao flights are approximately 15% cheaper when compared to flights at the same time last year.

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 25m

Direct flights

None
The fastest flight from San Francisco to Bilbao takes 15h 25m
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 25m, 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 $380Free CancellationRating
0.0
Search LEVEL flights
SWISSPriceFrom $447Free CancellationRating
7.5
1,859 reviews
Search SWISS flights
KLMPriceFrom $470Free CancellationRating
7.7
1,443 reviews
Search KLM flights
LufthansaPriceFrom $472Free CancellationRating
6.8
7,744 reviews
Search Lufthansa flights
United AirlinesPriceFrom $580Free CancellationRating
7.4
9,193 reviews
Search United Airlines flights
IberiaPriceFrom $589Free CancellationRating
7.0
3,098 reviews
Search Iberia flights
DeltaPriceFrom $675Free CancellationRating
7.9
8,111 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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