$407+ Cheap flights from Bilbao (BIO) to San Francisco (SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — SFO
Oct 27 — Nov 31
Round-trip
1 adult, Economy
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Find cheap flights from Bilbao to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Bilbao to San Francisco
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Best
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One-way
Cheapest flights from Bilbao to San FranciscoExplore the most affordable flight options available from Bilbao to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
Explore the most affordable flight options available from Bilbao to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2026.
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:15 am -
2 stops19h 44m
Thu 12/106:38 am -
2 stops16h 52m
Deal found 9/23![Iberia logo]()
$484
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:15 am -
2 stops22h 44m
Fri 11/612:04 pm -
2 stops19h 51m
Deal found 9/23![Iberia logo]()
$502
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:15 am -
2 stops20h 34m
Sun 11/225:00 am -
2 stops18h 30m
Deal found 9/22![American Airlines logo]()
$520
This Gotogate deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:45 am -
1 stop14h 50m
Sun 11/299:40 pm -
1 stop15h 15m
Deal found 9/22![Lufthansa logo]()
$528
This Gotogate deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:45 am -
1 stop14h 50m
Sun 11/229:40 pm -
1 stop15h 15m
Deal found 9/22![Lufthansa logo]()
$532
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:45 am -
1 stop14h 50m
Thu 12/101:40 pm -
1 stop23h 15m
Deal found 9/23![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:45 am -
2 stops23h 40m
Sun 11/291:40 pm -
1 stop23h 15m
Deal found 9/22![United Airlines logo]()
$560
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 am -
2 stops25h 14m
Fri 11/612:04 pm -
2 stops23h 46m
Deal found 9/23![Iberia logo]()
$563
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:45 am -
1 stop22h 25m
Wed 11/187:00 am -
2 stops29h 55m
Deal found 9/23![United Airlines logo]()
$569
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:15 am -
2 stops22h 32m
Wed 11/185:20 pm -
2 stops20h 55m
Deal found 9/23![Iberia logo]()
$574
Best flights from Bilbao to San FranciscoDiscover carefully curated flight deals from Bilbao to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
Discover carefully curated flight deals from Bilbao to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 27, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:45 am -
1 stop14h 50m
Thu 12/101:40 pm -
1 stop23h 15m
Deal found 9/22![United Airlines logo]()
$555
This KLM deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:10 am -
1 stop14h 45m
Thu 11/57:00 am -
2 stops19h 20m
Deal found 9/24![KLM logo]()
$737
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/147:30 am -
1 stop16h 20m
Mon 1/181:40 pm -
1 stop24h 30m
Deal found 9/26![United Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:45 am -
1 stop14h 50m
Wed 11/259:40 pm -
1 stop15h 15m
Deal found 9/25![United Airlines logo]()
$722
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:50 am -
2 stops23h 36m
Sat 10/312:24 pm -
2 stops24h 56m
Deal found 9/25![United Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:30 am -
2 stops18h 20m
Thu 11/52:24 pm -
2 stops22h 31m
Deal found 9/24![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:25 pm -
1 stop16h 45m
Tue 12/1512:45 pm -
2 stops24h 10m
Deal found 9/26![United Airlines logo]()
$829
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:30 am -
1 stop21h 05m
Tue 12/1512:45 pm -
2 stops24h 10m
Deal found 9/26![United Airlines logo]()
$841
Last-minute flights from Bilbao to San FranciscoDiscover last-minute flight deals from Bilbao to San Francisco. Data last updated September 27, 2026 and is based on user searches.
Discover last-minute flight deals from Bilbao to San Francisco. Data last updated September 27, 2026 and is based on user searches.
This ResecentrumGruppen deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:40 pm -
1 stop28h 50m
Sat 10/312:40 pm -
1 stop24h 40m
Deal found 9/25![Lufthansa logo]()
$701
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:50 am -
2 stops23h 36m
Sat 10/312:24 pm -
2 stops24h 56m
Deal found 9/25![United Airlines logo]()
$727
This Booking.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:50 am -
1 stop15h 40m
Thu 11/51:40 pm -
1 stop23h 15m
Deal found 9/24![Multiple Airlines logo]()
$729
This KLM deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:10 am -
1 stop14h 45m
Thu 11/57:00 am -
2 stops19h 20m
Deal found 9/24![KLM logo]()
$737
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:15 am -
2 stops22h 44m
Fri 11/612:04 pm -
2 stops19h 51m
Deal found 9/23![Iberia logo]()
$502
This Iberia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:15 am -
2 stops22h 44m
Thu 11/55:35 am -
2 stops17h 55m
Deal found 9/24![Iberia logo]()
$619
This Gotogate deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 am -
1 stop14h 50m
Thu 11/59:40 pm -
1 stop15h 15m
Deal found 9/24![Lufthansa logo]()
$700
This Gotogate deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 am -
1 stop14h 50m
Fri 11/69:40 pm -
1 stop16h 30m
Deal found 9/23![Lufthansa logo]()
$703
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 am -
1 stop14h 50m
Thu 11/52:24 pm -
2 stops22h 31m
Deal found 9/24![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:45 am -
1 stop22h 25m
Fri 11/610:45 am -
2 stops22h 00m
Deal found 9/23![United Airlines logo]()
$726
This Iberia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 am -
2 stops25h 14m
Fri 11/612:04 pm -
2 stops23h 46m
Deal found 9/23![Iberia logo]()
$563
One-way flights from Bilbao to San FranciscoSearch for one-way flight options from Bilbao to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
Search for one-way flight options from Bilbao to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 27, 2026.
This Expedia deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:35 pm -
2 stops33h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Iberia logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:05 am -
3 stops59h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:10 pm -
1 stop27h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Air France logo]()
$473
This KAYAK deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:45 am -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![American Airlines logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:30 am -
3 stops39h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:35 pm -
2 stops49h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$526
This Booking.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:40 pm -
1 stop29h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![TAP AIR PORTUGAL logo]()
$546
This KAYAK deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:10 am -
1 stop14h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$572
This Ticket deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:50 pm -
1 stop28h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![TAP AIR PORTUGAL logo]()
$576
This KAYAK deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:00 pm -
1 stop29h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Aer Lingus logo]()
$579
Find flight deals from Bilbao to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $484 (Iberia) |
One-way from | $407 (Expedia) |
Popular in | July |
Cheapest in | June |
Average price | $740 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 27, 2026.
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
Cheapest round-trip
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Sat 11/14
6:45 am-11:55 pm
2 stops26h 10m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$490
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Thu 12/3
6:45 am-12:35 pm
1 stop14h 50m
San Francisco
Thu 12/10
1:40 pm-9:55 pm
1 stop23h 15m
$555
Quickest round-trip
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Sat 11/14
7:10 am-12:55 pm
1 stop14h 45m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$572
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Tue 12/22
5:40 pm-2:45 pm
2 stops30h 05m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$592
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Tue 10/20
12:45 pm-2:35 pm
3 stops34h 50m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$696
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Thu 1/14
7:30 am-2:50 pm
1 stop16h 20m
San Francisco
Mon 1/18
1:40 pm-11:10 pm
1 stop24h 30m
$701
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Mon 11/9
6:45 am-12:35 pm
1 stop14h 50m
San Francisco
Wed 11/25
9:40 pm-9:55 pm
1 stop15h 15m
$722
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Mon 10/19
6:50 am-9:26 pm
2 stops23h 36m
San Francisco
Sat 10/31
2:24 pm-11:20 pm
2 stops24h 56m
$727
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Wed 10/28
7:10 am-1:55 pm
1 stop14h 45m
San Francisco
Thu 11/5
7:00 am-11:20 am
2 stops19h 20m
$737
BilbaoSan Francisco
BIO Bilbao - SFO San Francisco
BIOSFO
Bilbao
Wed 10/28
7:30 am-5:50 pm
2 stops18h 20m
San Francisco
Thu 11/5
2:24 pm-9:55 pm
2 stops22h 31m
$742
Showing 1-10 of 15 resultsSorted by cheapest first
- 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.
BIO-SFO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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 $968). 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 $632 and $754 in December.The cheapest round-trip price found within the last 5 days was $484 on Iberia (Dec 3-Dec 10).
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated September 27, 2026.
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.
Food
6.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Food
6.7
Comfort
7.3
Overall
7.4
Entertainment
7.1
Crew
8.1
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Related info for your journey
Find useful and relevant information for your journey from Bilbao to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
Burlingame
Rancho Cordova
San Bruno
Roseville
Hayward
Cupertino
Newark
Fairfield
San Ramon
Redwood City
Manteca
Vallejo
San Carlos
Turlock
Davis
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Bilbao and San Francisco flights
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Top airline flying from Bilbao to San Francisco
Discover the top airline that operate flights from Bilbao to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$768 | Average$917 | FlexibilityNo cancel fee | On-time69% |