Find Cheap Flights from Spain to San Francisco

Search hundreds of travel sites at once for deals on flights to San Francisco

Fri 12/15
Fri 12/22
Any month
Compare vs. KAYAK |

Book cheap flights from Spain to San Francisco (round-trip)

Airports
Origin
Barcelona
$378
only
$378
Madrid
$383
only
$383
Destination
San Francisco
$378
only
$378
Sat, Apr 21
BCN
SFO
35h 50m
Sat, May 5
SFO
BCN
28h 30m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 22
BCN
SFO
35h 50m
Fri, May 4
SFO
BCN
13h 40m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 8.0

Good multi media access and content

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

Sun, Jun 10
BCN
SFO
28h 15m
Sat, Jun 30
SFO
BCN
20h 40m
Trip: 21 days
5.8OkayShow reviews
Overall 5.8 Okay
Based on 1123 reviews
Overall
6.0
Boarding
6.4
Comfort
5.7
Crew
7.1
Entertainment
4.2
Food
4.7
LGW
KEF
Okay 4.6

Good design

Most uncomfortable seats I've experienced. They charge for EVERYTHING, even water. They actively sell Duty Free several times.

ORD
KEF
Okay 4.0

price

everything else

BWI
KEF
Okay 5.6

Crew was Great A+

Every leg of flight was delayed and very late arriving to our destination

SXF
KEF
Okay 4.6

The staff was nice

I will not ever fly Wow again. I paid more than my friends did to get to Europe and they got meals and drinks as well as free baggage.

CDG
KEF
Good 6.0

We of course liked the cost and convenience of the Pittsburgh location.

When we missed our flight out of Paris due to a long wait at passport control, WOW customer service would not work with us. We did not ask for refunds or even hotel reimbursement we simply asked to be booked on the next days flight to Pittsburgh and WOW refused making us purchase new tickets for over $1000.

Wed, Apr 18
BCN
SFO
17h 10m
Wed, Apr 25
SFO
BCN
22h 50m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 20
MAD
SFO
14h 45m
Sun, Apr 29
SFO
MAD
18h 10m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

JFK
AMS
Good 7.6

Two hours delay in the start.

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

Fri, May 11
BCN
SFO
14h 25m
Fri, May 18
SFO
BCN
14h 15m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 11
MAD
SFO
14h 45m
Thu, Apr 19
SFO
MAD
17h 05m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

Wed, Apr 11
MAD
SFO
14h 45m
Wed, Apr 25
SFO
MAD
14h 20m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 12
MAD
SFO
14h 45m
Thu, Apr 19
SFO
MAD
17h 05m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

JFK
AMS
Good 7.6

Two hours delay in the start.

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

Wed, Apr 25
MAD
SFO
16h 20m
Mon, May 21
SFO
MAD
17h 30m
Trip: 27 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 13
MAD
SFO
17h 30m
Thu, Apr 19
SFO
MAD
17h 05m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

KRK
AMS
Mediocre 3.0

Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again.

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

Sun, Apr 29
BCN
SFO
39h 05m
Wed, May 16
SFO
BCN
16h 55m
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 16
MAD
SFO
24h 30m
Mon, Apr 23
SFO
MAD
18h 00m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

JFK
AMS
Good 7.6

Two hours delay in the start.

Mon, Apr 23
MAD
SFO
25h 15m
Sun, May 6
SFO
MAD
14h 55m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 17
MAD
SFO
14h 45m
Wed, Apr 25
SFO
MAD
15h 35m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JFK
AMS
Good 7.6

Two hours delay in the start.

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

JNB
AMS
Excellent 8.0

Good multi media access and content

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

Fri, Apr 13
BCN
SFO
21h 01m
Fri, Apr 27
SFO
BCN
23h 50m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 18
MAD
SFO
14h 45m
Wed, Apr 25
SFO
MAD
17h 05m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

JNB
AMS
Excellent 8.0

Good multi media access and content

JFK
AMS
Good 7.6

Two hours delay in the start.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

Wed, May 2
MAD
SFO
17h 15m
Wed, May 16
SFO
MAD
17h 55m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 19
MAD
SFO
14h 45m
Wed, Apr 25
SFO
MAD
17h 05m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1538 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

Fri, Apr 27
MAD
SFO
20h 00m
Sat, May 5
SFO
MAD
28h 20m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.