$351+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BIO
مايو 28 — يونيو 41
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 أبريل 28, 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 أبريل 28, 2026.
This Justfly.com deal was found by Cheapflights users on 4/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 8/174:30 pm
SFO
- BIO
1 stop16h 30m
TAP AIR PORTUGAL
ر 8/2612:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 4/25![TAP AIR PORTUGAL logo]()
$724
This Finnair deal was found by Cheapflights users on 4/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 9/295:55 pm
SFO
- BIO
1 stop20h 20m
Multiple Airlines
ث 10/136:45 am
BIO
- SFO
2 stops25h 14m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$747
This Justfly.com deal was found by Cheapflights users on 4/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
س 8/157:35 pm
SFO
- BIO
1 stop31h 05m
TAP AIR PORTUGAL
ر 8/2612:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 4/25![TAP AIR PORTUGAL logo]()
$748
This Finnair deal was found by Cheapflights users on 4/26. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 10/138:24 am
SFO
- BIO
2 stops29h 51m
Multiple Airlines
ر 10/216:45 am
BIO
- SFO
2 stops26h 58m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$751
This oojo deal was found by Cheapflights users on 4/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 10/134:20 pm
SFO
- BIO
1 stop34h 10m
TAP AIR PORTUGAL
ر 10/2112:25 pm
BIO
- SFO
1 stop35h 05m
TAP AIR PORTUGAL
Deal found 4/26![TAP AIR PORTUGAL logo]()
$755
This SmartFares deal was found by Cheapflights users on 4/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 8/256:45 pm
SFO
- BIO
1 stop37h 35m
Turkish Airlines
خ 9/36:20 pm
BIO
- SFO
1 stop31h 20m
Turkish Airlines
Deal found 4/27![Turkish Airlines logo]()
$764
This Justfly.com deal was found by Cheapflights users on 4/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 8/174:30 pm
SFO
- BIO
1 stop16h 30m
TAP AIR PORTUGAL
ث 8/256:50 pm
BIO
- SFO
1 stop28h 45m
TAP AIR PORTUGAL
Deal found 4/25![TAP AIR PORTUGAL logo]()
$776
This Trip.com deal was found by Cheapflights users on 4/27. 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.
ر 8/266:45 pm
SFO
- BIO
1 stop31h 25m
Turkish Airlines
خ 9/36:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 4/27![Turkish Airlines logo]()
$777
This Justfly.com deal was found by Cheapflights users on 4/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 8/166:45 pm
SFO
- BIO
1 stop31h 25m
Turkish Airlines
ر 8/266:20 pm
BIO
- SFO
1 stop25h 30m
Turkish Airlines
Deal found 4/25![Turkish Airlines logo]()
$779
This Finnair deal was found by Cheapflights users on 4/25. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 8/168:45 am
SFO
- BIO
2 stops28h 20m
Multiple Airlines
ث 8/256:45 am
BIO
- SFO
2 stops25h 06m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 4/26. 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.
ث 10/139:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
ر 10/216:50 am
BIO
- SFO
1 stop14h 50m
United Airlines
Deal found 4/26![United Airlines logo]()
$789
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 أبريل 28, 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 أبريل 28, 2026.
This SmartFares deal was found by Cheapflights users on 4/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 8/256:45 pm
SFO
- BIO
1 stop37h 35m
Turkish Airlines
خ 9/36:20 pm
BIO
- SFO
1 stop31h 20m
Turkish Airlines
Deal found 4/27![Turkish Airlines logo]()
$764
This United Airlines deal was found by Cheapflights users on 4/26. 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.
ث 10/139:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
ر 10/216:50 am
BIO
- SFO
1 stop14h 50m
United Airlines
Deal found 4/26![United Airlines logo]()
$789
This Finnair deal was found by Cheapflights users on 4/24. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 9/211:00 am
SFO
- BIO
2 stops27h 15m
Multiple Airlines
ن 9/79:35 pm
BIO
- SFO
1 stop27h 45m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$812
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
س 8/1510:00 pm
SFO
- BIO
2 stops26h 50m
Delta
ن 8/2412:00 pm
BIO
- SFO
1 stop32h 45m
Delta
Deal found 4/25![Delta logo]()
$822
This KLM deal was found by Cheapflights users on 4/27. 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.
ث 6/22:22 pm
SFO
- BIO
2 stops17h 08m
KLM
خ 6/1112:00 pm
BIO
- SFO
2 stops17h 19m
KLM
Deal found 4/27![KLM logo]()
$948
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 5/219:05 pm
SFO
- BIO
2 stops28h 05m
Lufthansa
س 6/66:50 am
BIO
- SFO
1 stop14h 50m
Lufthansa
Deal found 4/23![Lufthansa logo]()
$992
This United Airlines deal was found by Cheapflights users on 4/23. 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.
خ 8/272:00 pm
SFO
- BIO
1 stop24h 25m
United Airlines
ن 10/196:50 am
BIO
- SFO
2 stops17h 31m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,030
This KLM deal was found by Cheapflights users on 4/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 8/98:10 pm
SFO
- BIO
1 stop16h 50m
KLM
س 8/1510:30 am
BIO
- SFO
1 stop35h 20m
KLM
Deal found 4/26![KLM logo]()
$1,066
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 8/272:25 pm
SFO
- BIO
2 stops17h 05m
Delta
ن 10/196:45 am
BIO
- SFO
2 stops19h 33m
Delta
Deal found 4/23![Delta logo]()
$1,120
This United Airlines deal was found by Cheapflights users on 4/24. 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.
ج 5/227:00 am
SFO
- BIO
2 stops18h 10m
United Airlines
ج 5/296:45 am
BIO
- SFO
2 stops24h 05m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,041
This KLM deal was found by Cheapflights users on 4/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
س 8/88:10 pm
SFO
- BIO
1 stop28h 40m
KLM
س 8/1510:30 am
BIO
- SFO
1 stop35h 20m
KLM
Deal found 4/26![KLM logo]()
$1,118
This United Airlines deal was found by Cheapflights users on 4/27. 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.
ج 5/299:05 pm
SFO
- BIO
1 stop17h 20m
United Airlines
س 6/136:50 am
BIO
- SFO
2 stops33h 20m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,087
Last-minute flights from San Francisco to BilbaoDiscover last-minute flight deals from San Francisco to Bilbao. Data last updated أبريل 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Bilbao. Data last updated أبريل 28, 2026 and is based on user searches.
This Rumbo deal was found by Cheapflights users on 4/25. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 5/46:45 pm
SFO
- BIO
1 stop37h 35m
Multiple Airlines
ث 5/1910:50 pm
BIO
- SFO
2 stops26h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$870
This Gotogate deal was found by Cheapflights users on 4/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 5/49:05 pm
SFO
- BIO
1 stop17h 20m
Lufthansa
ث 5/196:50 am
BIO
- SFO
1 stop14h 50m
Lufthansa
Deal found 4/25![Lufthansa logo]()
$905
This lol.travel deal was found by Cheapflights users on 4/25. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 5/41:28 pm
SFO
- BIO
2 stops24h 47m
Finnair
ث 5/196:45 am
BIO
- SFO
2 stops26h 44m
Finnair
Deal found 4/25![Finnair logo]()
$913
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
ن 5/187:35 pm
SFO
- BIO
1 stop15h 30m
SWISS
ج 6/58:55 am
BIO
- SFO
1 stop16h 20m
SWISS
Deal found 4/27![SWISS logo]()
$911
This Gotogate deal was found by Cheapflights users on 4/27. 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.
ن 5/189:05 pm
SFO
- BIO
1 stop17h 20m
Multiple Airlines
ج 6/56:45 am
BIO
- SFO
2 stops20h 47m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$946
This Gotogate deal was found by Cheapflights users on 4/27. 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.
ث 5/269:05 pm
SFO
- BIO
1 stop17h 20m
Lufthansa
ث 6/27:15 am
BIO
- SFO
1 stop20h 45m
Lufthansa
Deal found 4/27![Lufthansa logo]()
$928
This Delta deal was found by Cheapflights users on 4/27. 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.
ث 5/262:43 pm
SFO
- BIO
2 stops17h 47m
Delta
ث 6/26:45 am
BIO
- SFO
1 stop14h 00m
Delta
Deal found 4/27![Delta logo]()
$943
This Delta deal was found by Cheapflights users on 4/27. 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.
ح 5/315:55 am
SFO
- BIO
2 stops26h 35m
Delta
ر 6/106:45 am
BIO
- SFO
1 stop14h 00m
Delta
Deal found 4/27![Delta logo]()
$938
This Air Canada deal was found by Cheapflights users on 4/27. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 5/3112:15 pm
SFO
- BIO
2 stops20h 40m
Air Canada
خ 6/116:50 am
BIO
- SFO
2 stops20h 42m
Air Canada
Deal found 4/27![Air Canada logo]()
$941
This Air Canada deal was found by Cheapflights users on 4/27. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 5/3112:15 pm
SFO
- BIO
2 stops20h 40m
Air Canada
ج 6/127:15 am
BIO
- SFO
2 stops37h 57m
Air Canada
Deal found 4/27![Air Canada logo]()
$942
This SWISS deal was found by Cheapflights users on 4/27. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 5/317:35 pm
SFO
- BIO
1 stop30h 15m
SWISS
ث 6/911:40 am
BIO
- SFO
1 stop37h 35m
SWISS
Deal found 4/27![SWISS logo]()
$944
This Delta deal was found by Cheapflights users on 4/27. 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.
ح 5/315:55 am
SFO
- BIO
2 stops26h 35m
Delta
ج 6/127:10 am
BIO
- SFO
1 stop19h 50m
Delta
Deal found 4/27![Delta logo]()
$945
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 أبريل 28, 2026.
Search for one-way flight options from San Francisco to Bilbao. Find affordable one-way fares based on user searches. Data last updated أبريل 28, 2026.
This Expedia deal was found by Cheapflights users on 4/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 7/285:55 pm
SFO
- BIO
1 stop14h 00m
Iberia
Deal found 4/24![Iberia logo]()
$351
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 9/217:30 pm
SFO
- BIO
2 stops18h 45m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
خ 8/65:05 am
SFO
- BIO
2 stops18h 25m
American Airlines
Deal found 4/23![American Airlines logo]()
$406
This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
س 8/85:55 pm
SFO
- BIO
1 stop29h 35m
Iberia
Deal found 4/25![Iberia logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 6/218:21 pm
SFO
- BIO
2 stops41h 19m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$413
This Travelocity deal was found by Cheapflights users on 4/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 8/79:05 am
SFO
- BIO
2 stops38h 25m
Iberia
Deal found 4/25![Iberia logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 8/95:40 pm
SFO
- BIO
2 stops29h 45m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 8/55:40 pm
SFO
- BIO
3 stops30h 15m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ح 6/73:21 pm
SFO
- BIO
2 stops46h 19m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$419
This CrystalTravel deal was found by Cheapflights users on 4/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ن 9/214:35 pm
SFO
- BIO
1 stop17h 00m
British Airways
Deal found 4/25![British Airways logo]()
$421
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 أبريل 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $724 (Justfly.com) |
One-way from | $413 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $771 |
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 أبريل 28, 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
ث 8/25
6:45 pm-5:20 pm
1 stop37h 35m
Bilbao
خ 9/3
6:20 pm-4:40 pm
1 stop31h 20m
$764
Quickest round-trip
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ث 10/13
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
ر 10/21
6:50 am-12:40 pm
1 stop14h 50m
$789
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ر 9/2
11:00 am-11:15 pm
2 stops27h 15m
Bilbao
ن 9/7
9:35 pm-4:20 pm
1 stop27h 45m
$812
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
س 8/15
10:00 pm-9:50 am
2 stops26h 50m
Bilbao
ن 8/24
12:00 pm-11:45 am
1 stop32h 45m
$822
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ث 6/2
2:22 pm-4:30 pm
2 stops17h 08m
Bilbao
خ 6/11
12:00 pm-8:19 pm
2 stops17h 19m
$948
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
خ 5/21
9:05 pm-10:10 am
2 stops28h 05m
Bilbao
س 6/6
6:50 am-12:40 pm
1 stop14h 50m
$992
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
خ 8/27
2:00 pm-11:25 pm
1 stop24h 25m
Bilbao
ن 10/19
6:50 am-3:21 pm
2 stops17h 31m
$1,030
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ج 5/22
7:00 am-10:10 am
2 stops18h 10m
Bilbao
ج 5/29
6:45 am-9:50 pm
2 stops24h 05m
$1,041
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ح 8/9
8:10 pm-10:00 pm
1 stop16h 50m
Bilbao
س 8/15
10:30 am-12:50 pm
1 stop35h 20m
$1,066
San FranciscoBilbao
SFO - BIO
SFOBIO
San Francisco
ج 5/29
9:05 pm-11:25 pm
1 stop17h 20m
Bilbao
س 6/13
6:50 am-7:10 am
2 stops33h 20m
$1,087
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 April.
| 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 $559). 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 أبريل 28, 2026.
Read reviews from past customers who have flown KLM,United Airlines, andIberia 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.
Boarding
7.8
Crew
8.4
Entertainment
7.1
Food
7.3
Comfort
7.7
Overall
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Boarding
7.8
Crew
8.4
Entertainment
7.1
Food
7.3
Comfort
7.7
Overall
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Boarding
7.8
Crew
8.4
Entertainment
7.1
Food
7.3
Comfort
7.7
Overall
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Boarding
7.8
Crew
8.4
Entertainment
7.1
Food
7.3
Comfort
7.7
Overall
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Boarding
7.8
Crew
8.4
Entertainment
7.1
Food
7.3
Comfort
7.7
Overall
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
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 أبريل 28, 2026.
Complete your trip
Complete your trip to Bilbao by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Bilbao by cabin class
Find flights from San Francisco to Bilbao, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Bilbao flights
Browse other San Francisco and Bilbao flight options. Last updated on أبريل 28, 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 أبريل 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from San Francisco to Bilbao
Discover the top 6 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 أبريل 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$380 | Average$615 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$447 | Average$801 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$457 | Average$662 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$472 | Average$682 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$545 | Average$817 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$572 | Average$946 | FlexibilityNo cancel fee | On-time69% |