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Cheap flights from San Francisco to Bilbao from $249

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 10/19. 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

Lufthansa Logo
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
Lufthansa Logo
6:45 am - 12:40 pmBIO-SFO
14h 55m1 stop
$433Lufthansa
Find Deal
Wed, Oct 8 - Wed, Oct 15
Lufthansa Logo
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
Lufthansa Logo
11:35 am - 8:35 pmBIO-SFO
17h 00m1 stop
$448Lufthansa
Find Deal
Sun, Oct 19 - Thu, Oct 30
Logo
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
Logo
7:15 am - 10:28 amBIO-SFO
36h 13m2 stops
$453
Find Deal
Wed, Oct 8 - Wed, Oct 15
TAP AIR PORTUGAL Logo
4:35 pm - 5:55 pmSFO-BIO
16h 20m1 stop
TAP AIR PORTUGAL Logo
6:40 pm - 2:35 pmBIO-SFO
28h 55m1 stop
$456TAP AIR PORTUGAL
Find Deal
Mon, Nov 24 - Sun, Dec 14
TAP AIR PORTUGAL Logo
4:20 pm - 11:30 amSFO-BIO
34h 10m1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 2:35 pmBIO-SFO
28h 45m1 stop
$458TAP AIR PORTUGAL
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
2:00 pm - 11:25 pmSFO-BIO
24h 25m1 stop
United Airlines Logo
6:45 am - 12:40 pmBIO-SFO
14h 55m1 stop
$461United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
10:40 am - 4:40 pmSFO-BIO
21h 00m2 stops
Delta Logo
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
$462Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
2:00 pm - 11:25 pmSFO-BIO
24h 25m1 stop
United Airlines Logo
7:15 am - 12:55 amBIO-SFO
26h 40m2 stops
$463United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Logo
8:25 am - 4:10 pmSFO-BIO
23h 45m2 stops
Logo
7:25 am - 9:34 pmBIO-SFO
23h 09m2 stops
$470
Find Deal
Wed, Oct 29 - Wed, Nov 5
Delta Logo
12:35 pm - 4:40 pmSFO-BIO
19h 05m2 stops
Delta Logo
6:50 am - 4:05 pmBIO-SFO
18h 15m2 stops
$472Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21

Lufthansa flights from San Francisco to Bilbao

Our best Lufthansa deals on San Francisco to Bilbao flight tickets
Lufthansa
Oct 8
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Oct 15
BIO6:45 amBilbao
14h 55m
1 stop
SFO12:40 pmSan Francisco
$433
Find similar
Lufthansa
Oct 19
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Oct 30
BIO11:35 amBilbao
17h 00m
1 stop
SFO8:35 pmSan Francisco
$448
Find similar
Lufthansa
Sep 22
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Oct 7
BIO6:45 amBilbao
14h 55m
1 stop
SFO12:40 pmSan Francisco
$485
Find similar

United Airlines flights from San Francisco to Bilbao

Our best United Airlines deals on San Francisco to Bilbao flight tickets
United Airlines
Sep 23
SFO9:01 amSan Francisco
16h 44m
2 stops
BIO10:45 amBilbao
Oct 8
BIO7:15 amBilbao
20h 45m
1 stop
SFO7:00 pmSan Francisco
$440
Find similar
United Airlines
Sep 22
SFO9:05 pmSan Francisco
17h 20m
1 stop
BIO11:25 pmBilbao
Oct 8
BIO11:50 amBilbao
16h 10m
1 stop
SFO7:00 pmSan Francisco
$453
Find similar
United Airlines
Sep 23
SFO9:01 amSan Francisco
16h 44m
2 stops
BIO10:45 amBilbao
Oct 9
BIO6:45 amBilbao
19h 52m
2 stops
SFO5:37 pmSan Francisco
$458
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 September 15, 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

Wed 10/8

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Wed 10/15

6:45 am-12:40 pm

1 stop14h 55m

$433

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 10/19

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Thu 10/30

11:35 am-8:35 pm

1 stop17h 00m

$448

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 10/8

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Wed 10/15

7:15 am-10:28 am

2 stops36h 13m

$453

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 11/24

4:35 pm-5:55 pm

1 stop16h 20m

Bilbao

Sun 12/14

6:40 pm-2:35 pm

1 stop28h 55m

$456

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/14

4:20 pm-11:30 am

1 stop34h 10m

Bilbao

Tue 10/21

6:50 pm-2:35 pm

1 stop28h 45m

$458

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/14

2:00 pm-11:25 pm

1 stop24h 25m

Bilbao

Tue 10/21

6:45 am-12:40 pm

1 stop14h 55m

$461

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/14

10:40 am-4:40 pm

2 stops21h 00m

Bilbao

Tue 10/21

6:50 am-11:45 am

1 stop13h 55m

$462

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/14

2:00 pm-11:25 pm

1 stop24h 25m

Bilbao

Tue 10/21

7:15 am-12:55 am

2 stops26h 40m

$463

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 10/29

8:25 am-4:10 pm

2 stops23h 45m

Bilbao

Wed 11/5

7:25 am-9:34 pm

2 stops23h 09m

$470

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/14

12:35 pm-4:40 pm

2 stops19h 05m

Bilbao

Tue 10/21

6:50 am-4:05 pm

2 stops18h 15m

$472

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 $672, 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 September is your next best option. Flight prices from San Francisco to Bilbao during September average around $682.

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 $866 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 $686 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

Direct flights

None
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 35m, 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
4.0
4 reviews
Search LEVEL flights
LufthansaPriceFrom $557Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
IberiaPriceFrom $589Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
KLMPriceFrom $612Free CancellationRating
7.8
1,385 reviews
Search KLM flights
United AirlinesPriceFrom $627Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $649Free CancellationRating
7.9
7,954 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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