$367+ Cheap flights from San Francisco (SFO) to Bilbao (BIO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIO
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Best
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Cheapest flights from San Francisco to BilbaoExplore the most affordable flight options available from San Francisco to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from San Francisco to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:30 pm
SFO
- BIO
1 stop16h 30m
TAP AIR PORTUGAL
Tue 8/256:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 6/12![TAP AIR PORTUGAL logo]()
$685
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:45 pm
SFO
- BIO
1 stop17h 00m
Scandinavian Airlines
Wed 9/307:35 pm
BIO
- SFO
1 stop28h 05m
Scandinavian Airlines
Deal found 6/11![Scandinavian Airlines logo]()
$722
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/11. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:20 pm
SFO
- BIO
2 stops31h 10m
TAP AIR PORTUGAL
Tue 9/156:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 6/11![TAP AIR PORTUGAL logo]()
$724
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Sat 9/197:35 pm
SFO
- BIO
1 stop31h 05m
TAP AIR PORTUGAL
Tue 9/296:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 6/11![TAP AIR PORTUGAL logo]()
$745
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:35 pm
SFO
- BIO
1 stop33h 55m
TAP AIR PORTUGAL
Wed 9/3012:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 6/11![TAP AIR PORTUGAL logo]()
$746
This Finnair deal was found by Cheapflights users on 6/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:14 am
SFO
- BIO
2 stops31h 01m
Multiple Airlines
Tue 11/246:45 am
BIO
- SFO
2 stops26h 58m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$750
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:45 pm
SFO
- BIO
1 stop17h 00m
Scandinavian Airlines
Fri 10/27:35 pm
BIO
- SFO
1 stop28h 05m
Scandinavian Airlines
Deal found 6/11![Scandinavian Airlines logo]()
$762
This KLM deal was found by Cheapflights users on 6/13. 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 11/119:00 am
SFO
- BIO
2 stops17h 45m
KLM
Tue 11/246:50 am
BIO
- SFO
1 stop13h 55m
KLM
Deal found 6/13![KLM logo]()
$771
This oojo deal was found by Cheapflights users on 6/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:40 pm
SFO
- BIO
1 stop16h 25m
Lufthansa
Tue 11/246:45 am
BIO
- SFO
1 stop14h 50m
Lufthansa
Deal found 6/13![Lufthansa logo]()
$772
This Priceline deal was found by Cheapflights users on 6/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:00 am
SFO
- BIO
2 stops19h 50m
Multiple Airlines
Sat 10/319:15 am
BIO
- SFO
2 stops22h 23m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$779
This Finnair deal was found by Cheapflights users on 6/14. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:27 am
SFO
- BIO
2 stops25h 38m
Multiple Airlines
Tue 9/296:45 am
BIO
- SFO
2 stops27h 14m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$780
Best flights from San Francisco to BilbaoDiscover carefully curated flight deals from San Francisco to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from San Francisco to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This United deal was found by Cheapflights users on 6/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:40 pm
SFO
- BIO
1 stop16h 25m
Multiple Airlines
Tue 11/246:45 am
BIO
- SFO
1 stop14h 50m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$788
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 11/711:50 pm
SFO
- BIO
2 stops31h 20m
United Airlines
Sat 11/1411:35 am
BIO
- SFO
1 stop36h 15m
United Airlines
Deal found 6/11![United Airlines logo]()
$855
This British Airways deal was found by Cheapflights users on 6/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:04 am
SFO
- BIO
2 stops18h 46m
British Airways
Thu 11/129:35 pm
BIO
- SFO
2 stops32h 02m
British Airways
Deal found 6/13![British Airways logo]()
$981
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am
SFO
- BIO
2 stops17h 50m
Delta
Tue 8/1812:00 pm
BIO
- SFO
2 stops20h 59m
Delta
Deal found 6/13![Delta logo]()
$1,194
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/209:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Mon 9/212:10 pm
BIO
- SFO
2 stops38h 32m
United Airlines
Deal found 6/10![United Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 6/14. 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 9/32:00 pm
SFO
- BIO
1 stop24h 25m
United Airlines
Sat 9/126:50 am
BIO
- SFO
2 stops22h 27m
United Airlines
Deal found 6/14![United Airlines logo]()
$938
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/272:00 pm
SFO
- BIO
1 stop24h 25m
United Airlines
Mon 8/36:50 am
BIO
- SFO
2 stops23h 44m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,192
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:35 pm
SFO
- BIO
1 stop17h 00m
British Airways
Mon 9/219:35 pm
BIO
- SFO
2 stops35h 21m
British Airways
Deal found 6/11![British Airways logo]()
$1,651
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/319:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Sat 8/157:15 am
BIO
- SFO
1 stop16h 05m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,425
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am
SFO
- BIO
2 stops17h 50m
Delta
Sun 8/1612:00 pm
BIO
- SFO
2 stops21h 36m
Delta
Deal found 6/13![Delta logo]()
$1,944
This United Airlines deal was found by Cheapflights users on 6/14. 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 10/209:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Thu 10/2211:55 am
BIO
- SFO
1 stop16h 05m
United Airlines
Deal found 6/14![United Airlines logo]()
$1,869
Last-minute flights from San Francisco to BilbaoDiscover last-minute flight deals from San Francisco to Bilbao. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Bilbao. Data last updated June 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:40 am
SFO
- BIO
2 stops19h 10m
Delta
Wed 7/1512:00 pm
BIO
- SFO
2 stops19h 55m
Delta
Deal found 6/10![Delta logo]()
$918
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:05 pm
SFO
- BIO
1 stop17h 20m
Lufthansa
Wed 7/1511:55 am
BIO
- SFO
2 stops22h 20m
Lufthansa
Deal found 6/10![Lufthansa logo]()
$933
This Air France deal was found by Cheapflights users on 6/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:10 pm
SFO
- BIO
1 stop16h 50m
Air France
Wed 7/157:10 am
BIO
- SFO
1 stop19h 50m
Air France
Deal found 6/10![Air France logo]()
$1,043
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 7/119:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Sat 7/187:15 am
BIO
- SFO
2 stops23h 18m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/159:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Fri 7/2412:30 pm
BIO
- SFO
2 stops27h 37m
United Airlines
Deal found 6/11![United Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 6/15. 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 7/1510:50 am
SFO
- BIO
2 stops22h 05m
United Airlines
Wed 7/226:50 am
BIO
- SFO
2 stops25h 09m
United Airlines
Deal found 6/15![United Airlines logo]()
$922
This Finnair deal was found by Cheapflights users on 6/11. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1511:24 am
SFO
- BIO
2 stops26h 51m
Multiple Airlines
Fri 7/246:45 am
BIO
- SFO
2 stops24h 29m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$927
This KLM deal was found by Cheapflights users on 6/13. 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 7/158:10 pm
SFO
- BIO
1 stop16h 50m
KLM
Fri 7/247:10 am
BIO
- SFO
1 stop14h 40m
KLM
Deal found 6/13![KLM logo]()
$963
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/299:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Thu 8/66:50 am
BIO
- SFO
2 stops27h 25m
United Airlines
Deal found 6/12![United Airlines logo]()
$888
One-way flights from San Francisco to BilbaoSearch for one-way flight options from San Francisco to Bilbao. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from San Francisco to Bilbao. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Expedia deal was found by Cheapflights users on 6/15. 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.
Sat 10/32:58 pm
SFO
- BIO
2 stops36h 47m
Iberia
Deal found 6/15![Iberia logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 9/75:35 pm
SFO
- BIO
2 stops29h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/45:40 pm
SFO
- BIO
2 stops29h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 8/35:35 pm
SFO
- BIO
2 stops29h 20m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$388
This Finnair deal was found by Cheapflights users on 6/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:50 am
SFO
- BIO
2 stops27h 25m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/25:40 pm
SFO
- BIO
2 stops31h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 8/105:35 pm
SFO
- BIO
2 stops29h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 9/112:33 pm
SFO
- BIO
3 stops25h 07m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Wed 8/55:40 pm
SFO
- BIO
3 stops30h 15m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$407
Find flight deals from San Francisco to Bilbao
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Bilbao (BIO). 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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $685 (Justfly.com) |
One-way from | $367 (Expedia) |
Popular in | June |
Cheapest in | October |
Average price | $1,162 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 15, 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
Cheapest round-trip
Quickest round-trip
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Wed 11/11
9:40 pm-11:05 pm
1 stop16h 25m
Bilbao
Tue 11/24
6:45 am-12:35 pm
1 stop14h 50m
$788
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Sat 11/7
11:50 pm-4:10 pm
2 stops31h 20m
Bilbao
Sat 11/14
11:35 am-2:50 pm
1 stop36h 15m
$855
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Thu 8/20
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
Mon 9/21
2:10 pm-7:42 pm
2 stops38h 32m
$908
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Thu 9/3
2:00 pm-11:25 pm
1 stop24h 25m
Bilbao
Sat 9/12
6:50 am-8:17 pm
2 stops22h 27m
$938
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Mon 11/9
9:04 am-12:50 pm
2 stops18h 46m
Bilbao
Thu 11/12
9:35 pm-8:37 pm
2 stops32h 02m
$981
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Mon 7/27
2:00 pm-11:25 pm
1 stop24h 25m
Bilbao
Mon 8/3
6:50 am-9:34 pm
2 stops23h 44m
$1,192
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Sun 8/9
7:00 am-9:50 am
2 stops17h 50m
Bilbao
Tue 8/18
12:00 pm-11:59 pm
2 stops20h 59m
$1,194
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Fri 7/31
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
Sat 8/15
7:15 am-2:20 pm
1 stop16h 05m
$1,425
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Mon 9/7
4:35 pm-6:35 pm
1 stop17h 00m
Bilbao
Mon 9/21
9:35 pm-11:56 pm
2 stops35h 21m
$1,651
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Tue 10/20
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
Thu 10/22
11:55 am-7:00 pm
1 stop16h 05m
$1,869
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Bilbao
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Bilbao in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Bilbao flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Bilbao 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 San Francisco-Bilbao 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 San Francisco to Bilbao
Have a flexible travel schedule? Discover the best time to fly to Bilbao from San Francisco with our price prediction graph.
SFO-BIO
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 San Francisco to Bilbao
How far ahead should I book a flight from San Francisco to Bilbao?
The best time to book flights from San Francisco to Bilbao is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San Francisco to Bilbao?
Currently, October is the cheapest month in which you can book a flight from San Francisco to Bilbao (average of $552). Flying from San Francisco to Bilbao in June is currently the most expensive (average of $1,162). 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 San Francisco to Bilbao?
Reviews of airlines servicing Bilbao
Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated June 15, 2026.
Read reviews from past customers who have flown KLM,United Airlines, andLufthansa from San Francisco to Bilbao. 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.
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Boarding
7.8
Overall
7.8
Crew
8.4
Comfort
7.7
Food
7.3
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Bilbao
Explore flights to Bilbao departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Complete your trip
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San Francisco and Bilbao flights
Browse other San Francisco and Bilbao flight options. Last updated on June 15, 2026.
Other flights from San Francisco
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from San Francisco to Bilbao
Discover the top 3 airlines that operate flights from San Francisco to Bilbao. 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 2,558,603 searches. Data last updated June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$461 | Average$647 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$470 | Average$675 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$572 | Average$930 | FlexibilityNo cancel fee | On-time69% |