$298+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIO
Apr 13 — Apr 201
Round-trip
1 adult, Economy
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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 March 14, 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 March 14, 2026.
This oojo deal was found by Cheapflights users on 3/9. 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.
Sat 4/257:35 pm
SFO
- BIO
1 stop31h 05m
TAP AIR PORTUGAL
Thu 5/712:15 pm
BIO
- SFO
1 stop37h 35m
TAP AIR PORTUGAL
Deal found 3/9![TAP AIR PORTUGAL logo]()
$501
This oojo deal was found by Cheapflights users on 3/9. 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.
Thu 4/237:55 pm
SFO
- BIO
1 stop36h 40m
TAP AIR PORTUGAL
Thu 4/3012:15 pm
BIO
- SFO
1 stop37h 35m
TAP AIR PORTUGAL
Deal found 3/9![TAP AIR PORTUGAL logo]()
$527
This Justfly.com deal was found by Cheapflights users on 3/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/284:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Thu 12/1012:10 pm
BIO
- SFO
1 stop36h 55m
TAP AIR PORTUGAL
Deal found 3/13![TAP AIR PORTUGAL logo]()
$577
This FlightHub deal was found by Cheapflights users on 3/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/284:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Sun 12/136:40 pm
BIO
- SFO
1 stop28h 55m
TAP AIR PORTUGAL
Deal found 3/13![TAP AIR PORTUGAL logo]()
$589
This KAYAK deal was found by Cheapflights users on 3/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/304:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Sun 12/66:40 pm
BIO
- SFO
1 stop28h 55m
TAP AIR PORTUGAL
Deal found 3/13![TAP AIR PORTUGAL logo]()
$612
This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Tue 1/56:40 pm
BIO
- SFO
1 stop28h 50m
TAP AIR PORTUGAL
Deal found 3/10![TAP AIR PORTUGAL logo]()
$628
This Orbitz deal was found by Cheapflights users on 3/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:45 pm
SFO
- BIO
2 stops21h 00m
Scandinavian Airlines
Wed 10/77:35 pm
BIO
- SFO
1 stop28h 05m
Scandinavian Airlines
Deal found 3/12![Scandinavian Airlines logo]()
$630
This oojo deal was found by Cheapflights users on 3/9. 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.
Tue 4/74:35 pm
SFO
- BIO
1 stop33h 55m
TAP AIR PORTUGAL
Wed 4/2912:25 pm
BIO
- SFO
1 stop37h 10m
TAP AIR PORTUGAL
Deal found 3/9![TAP AIR PORTUGAL logo]()
$632
This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Thu 1/712:10 pm
BIO
- SFO
1 stop36h 55m
TAP AIR PORTUGAL
Deal found 3/10![TAP AIR PORTUGAL logo]()
$635
This Booking.com deal was found by Cheapflights users on 3/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:45 pm
SFO
- BIO
1 stop37h 35m
Turkish Airlines
Wed 9/306:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 3/12![Turkish Airlines logo]()
$636
This Booking.com deal was found by Cheapflights users on 3/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:45 pm
SFO
- BIO
1 stop31h 25m
Turkish Airlines
Wed 10/76:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 3/12![Turkish Airlines logo]()
$637
This oojo deal was found by Cheapflights users on 3/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Fri 1/86:40 pm
BIO
- SFO
1 stop29h 05m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$641
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 March 14, 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 March 14, 2026.
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:45 pm
SFO
- BIO
1 stop37h 35m
Turkish Airlines
Wed 5/136:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$648
This Iberia deal was found by Cheapflights users on 3/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:10 pm
SFO
- BIO
2 stops17h 45m
Iberia
Wed 4/229:15 am
BIO
- SFO
2 stops20h 41m
Iberia
Deal found 3/13![Iberia logo]()
$711
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:10 pm
SFO
- BIO
2 stops18h 40m
Multiple Airlines
Wed 4/229:35 pm
BIO
- SFO
1 stop27h 35m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Sun 4/269:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
Sun 5/36:50 am
BIO
- SFO
1 stop14h 50m
United Airlines
Deal found 3/12![United Airlines logo]()
$842
This Delta deal was found by Cheapflights users on 3/9. 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 4/265:55 am
SFO
- BIO
2 stops26h 35m
Delta
Thu 5/76:45 am
BIO
- SFO
2 stops21h 20m
Delta
Deal found 3/9![Delta logo]()
$985
This Turkish Airlines deal was found by Cheapflights users on 3/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:45 pm
SFO
- BIO
1 stop31h 25m
Turkish Airlines
Wed 4/226:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 3/13![Turkish Airlines logo]()
$648
This Turkish Airlines deal was found by Cheapflights users on 3/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:55 pm
SFO
- BIO
1 stop37h 15m
Turkish Airlines
Tue 5/1912:10 pm
BIO
- SFO
1 stop37h 30m
Turkish Airlines
Deal found 3/12![Turkish Airlines logo]()
$648
This Turkish Airlines deal was found by Cheapflights users on 3/12. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:55 pm
SFO
- BIO
1 stop37h 15m
Multiple Airlines
Tue 5/193:30 pm
BIO
- SFO
2 stops34h 10m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$755
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:45 pm
SFO
- BIO
1 stop31h 25m
Multiple Airlines
Thu 5/73:55 pm
BIO
- SFO
2 stops27h 55m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$795
This Turkish Airlines deal was found by Cheapflights users on 3/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:50 pm
SFO
- BIO
2 stops28h 30m
Multiple Airlines
Sat 9/264:00 pm
BIO
- SFO
2 stops33h 40m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$1,106
Last-minute flights from San Francisco to BilbaoDiscover last-minute flight deals from San Francisco to Bilbao. Data last updated March 14, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Bilbao. Data last updated March 14, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 3/9. 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.
Wed 3/187:50 pm
SFO
- BIO
1 stop31h 10m
Turkish Airlines
Wed 3/255:10 pm
BIO
- SFO
1 stop32h 35m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$780
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:50 pm
SFO
- BIO
1 stop31h 10m
Turkish Airlines
Tue 3/2412:00 pm
BIO
- SFO
1 stop37h 45m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$785
This Turkish Airlines deal was found by Cheapflights users on 3/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:50 pm
SFO
- BIO
1 stop31h 10m
Turkish Airlines
Mon 3/2312:00 pm
BIO
- SFO
1 stop32h 05m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$815
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:50 pm
SFO
- BIO
1 stop31h 10m
Turkish Airlines
Tue 3/2412:00 pm
BIO
- SFO
1 stop37h 45m
Turkish Airlines
Deal found 3/9![Turkish Airlines logo]()
$831
This Trip.com deal was found by Cheapflights users on 3/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/222:10 pm
SFO
- BIO
1 stop36h 50m
Turkish Airlines
Tue 9/2912:10 pm
BIO
- SFO
1 stop37h 30m
Turkish Airlines
Deal found 3/11![Turkish Airlines logo]()
$861
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Tue 9/296:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$718
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Tue 9/226:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$723
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Wed 9/2312:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$729
This Mytrip deal was found by Cheapflights users on 3/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Wed 9/3012:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$732
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop16h 20m
TAP AIR PORTUGAL
Sun 9/277:45 pm
BIO
- SFO
1 stop27h 20m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$736
This Gotogate deal was found by Cheapflights users on 3/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:35 pm
SFO
- BIO
1 stop33h 50m
TAP AIR PORTUGAL
Mon 9/2812:25 pm
BIO
- SFO
1 stop34h 10m
TAP AIR PORTUGAL
Deal found 3/11![TAP AIR PORTUGAL logo]()
$756
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Mon 3/238:55 pm
SFO
- BIO
2 stops39h 10m
Multiple Airlines
Tue 9/226:45 am
BIO
- SFO
1 stop18h 35m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$809
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 March 14, 2026.
Search for one-way flight options from San Francisco to Bilbao. Find affordable one-way fares based on user searches. Data last updated March 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 8/158:20 pm
SFO
- BIO
2 stops41h 20m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$298
This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:10 am
SFO
- BIO
2 stops17h 20m
Iberia
Deal found 3/13![Iberia logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/47:40 am
SFO
- BIO
2 stops39h 35m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 8/168:20 pm
SFO
- BIO
2 stops41h 20m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$320
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/34:30 pm
SFO
- BIO
1 stop16h 30m
TAP AIR PORTUGAL
Deal found 3/10![TAP AIR PORTUGAL logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Wed 8/195:40 pm
SFO
- BIO
2 stops29h 45m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 8/1710:16 am
SFO
- BIO
2 stops27h 24m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:00 pm
SFO
- BIO
3 stops47h 00m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$370
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 March 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $501 (oojo) |
One-way from | $298 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $697 |
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 March 14, 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
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Mon 5/4
6:45 pm-5:20 pm
1 stop37h 35m
Bilbao
Wed 5/13
6:20 pm-10:50 am
1 stop25h 30m
$648
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Wed 4/15
6:45 pm-11:10 am
1 stop31h 25m
Bilbao
Wed 4/22
6:20 pm-10:50 am
1 stop25h 30m
$648
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Thu 4/16
12:55 pm-11:10 am
1 stop37h 15m
Bilbao
Tue 5/19
12:10 pm-4:40 pm
1 stop37h 30m
$648
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Wed 4/15
2:10 pm-4:55 pm
2 stops17h 45m
Bilbao
Wed 4/22
9:15 am-8:56 pm
2 stops20h 41m
$711
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Wed 4/15
2:10 pm-5:50 pm
2 stops18h 40m
Bilbao
Wed 4/22
9:35 pm-4:10 pm
1 stop27h 35m
$712
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Thu 4/16
12:55 pm-11:10 am
1 stop37h 15m
Bilbao
Tue 5/19
3:30 pm-4:40 pm
2 stops34h 10m
$755
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Sat 4/25
6:45 pm-11:10 am
1 stop31h 25m
Bilbao
Thu 5/7
3:55 pm-10:50 am
2 stops27h 55m
$795
Quickest round-trip
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Sun 4/26
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
Sun 5/3
6:50 am-12:40 pm
1 stop14h 50m
$842
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Sun 4/26
5:55 am-5:30 pm
2 stops26h 35m
Bilbao
Thu 5/7
6:45 am-7:05 pm
2 stops21h 20m
$985
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
Mon 3/23
7:50 pm-8:20 am
2 stops28h 30m
Bilbao
Sat 9/26
4:00 pm-4:40 pm
2 stops33h 40m
$1,106
Showing 1-10 of 19 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 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?
Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Bilbao. Price data was last updated on March 6, 2026.
The best time to book flights from San Francisco to Bilbao is 86 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, March is the cheapest month in which you can book a flight from San Francisco to Bilbao (average of $395). Flying from San Francisco to Bilbao in June is currently the most expensive (average of $901). 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.
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 March 14, 2026.
Read reviews from past customers who have flown Delta,KLM, andUnited Airlines 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.
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Crew
8.5
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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 March 14, 2026.
Complete your trip
Complete your trip to Bilbao by adding a car rental and/or hotel reservation to your travel itinerary.
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San Francisco and Bilbao flights
Browse other San Francisco and Bilbao flight options. Last updated on March 14, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on March 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from San Francisco to Bilbao
Discover the top 7 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 March 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$380 | Average$705 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$447 | Average$723 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$470 | Average$649 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$472 | Average$684 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$545 | Average$817 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$572 | Average$950 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$616 | Average$803 | FlexibilityNo cancel fee | On-timeN/A |