Find Cheap Flights from Portugal to San Francisco

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

Mon 1/22
Mon 1/29
Any month
Compare vs. KAYAK |

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

Airports
Origin
Lisbon
$668
only
$668
Destination
San Francisco
$668
only
$668
Mon, Feb 26
LIS
SFO
24h 15m
Tue, Mar 6
SFO
LIS
23h 30m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
LIS
SFO
18h 00m
Mon, Apr 9
SFO
LIS
17h 25m
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
AUH
LHR
Excellent 10.0

I arrived safely and on time

Audio plug for my seat was broken, but I slept so it worked out Kay.

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

TPA
LGW
Excellent 10.0

Friendly flight staff, spacious cabin, decent food, clean and well-maintained. Additionally, we were delayed by 30 minutes and still managed to arrive before our original arrival time at Gatwick. I haven’t flown BA in years but this trip has made me a new regular customer.

LHR
SFO
Okay 5.3

Cabin crew polite and courteous

Boarding via bus to plane was an added hassle The cabin temperature throughout flight was uncomfortably cold On each trip I have made with BA ( 6 in last year USA to U.K. and Spain) lack of overhead luggage space is always an issue. I paid 65 pounds for an extra check-on small suitcase, yet I couldn’t even put a small holdall in overhead because others had whole suitcases in there. This needs to be re-evaluated!

YYZ
LHR
Mediocre 2.0

Rude staff at the airport. Short overlay did not have enough time to get our bags and checkin again that was ridiculous to have to check in again!

Tue, Feb 27
LIS
SFO
15h 20m
Wed, Mar 7
SFO
LIS
20h 40m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ANC
SEA
Excellent 10.0

Delta has great seats, friendly employees and engaged managers and pilots. Even their customer service Center reaches out to help on suggestions. I am flying to Portland for School over 40 round trips and I am saving $4,000 vs Alaska Air. Plus I get miles and discounts with the Delta Amex Card. I am very pleased.

I don’t like harsh change in schedule fees but it forces me to plan. I wish the Seattle to Portland Eve flight landed in time to catch Portland Rail system at 11:50 PM

CUN
JFK
Okay 4.6

Delta seats are comfortable and media ststem is good.

Flight was late and the staff wasn't kind Neither at JFK gate neither on both flights. Looks like they are doing you a favor to listen to you when you ask them something.

LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

JFK
TPA
Good 6.6

We landed earlier than expected

Bathroom was very smelly

MSP
RSW
Good 6.3

Quick boarding, clean plane, good entertainment system.

Used a neck/back pillow and jacket against hull to try and keep my shoulder and arm from freezing solid. I usually sit by the window on a couple dozen flights per year, and it has never been this cold on my arm. I wonder if a heating pad would work on their outlet?

Fri, Feb 2
LIS
SFO
37h 15m
Fri, Feb 9
SFO
LIS
32h 10m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17568 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
TLV
IST
Excellent 8.3

On time.

IAD
IST
Excellent 10.0

Excellent service with comfort

All was great

IST
SFO
Okay 4.6

Good entertainment.

Need to have better boarding and organization.

IST
TXL
Good 6.8

It was on time and we got there safely, otherwise not memorable in any way.

The staff...not very outgoing....they clearly wish that they were somewhere else.

IST
JFK
Excellent 8.0

Food, entertainment and service

narrow sitting space

Tue, Mar 20
LIS
SFO
28h 15m
Mon, Apr 23
SFO
LIS
17h 50m
Trip: 35 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 26
LIS
SFO
24h 15m
Mon, Mar 5
SFO
LIS
34h 45m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 26
LIS
SFO
17h 32m
Thu, May 10
SFO
LIS
17h 15m
Trip: 15 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

BOM
LHR
Excellent 8.3

Economy plus was great. Economy was a little rough for me as seating was much less comfortable

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

LHR
IAH
Mediocre 2.0

Unfortunately, I couldn't travel as I was told to bring the credit card used in the booking of my flight. This was not explained in the booking option. Thus I would need a refund on my flight ticket.

LHR
SFO
Okay 5.3

Cabin crew polite and courteous

Boarding via bus to plane was an added hassle The cabin temperature throughout flight was uncomfortably cold On each trip I have made with BA ( 6 in last year USA to U.K. and Spain) lack of overhead luggage space is always an issue. I paid 65 pounds for an extra check-on small suitcase, yet I couldn’t even put a small holdall in overhead because others had whole suitcases in there. This needs to be re-evaluated!

Wed, Mar 14
LIS
SFO
15h 40m
Wed, Mar 21
SFO
LIS
20h 25m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
MSP
RSW
Good 6.3

Quick boarding, clean plane, good entertainment system.

Used a neck/back pillow and jacket against hull to try and keep my shoulder and arm from freezing solid. I usually sit by the window on a couple dozen flights per year, and it has never been this cold on my arm. I wonder if a heating pad would work on their outlet?

ATL
SEA
Excellent 8.3

Great movie selection

RDU
LAX
Excellent 8.4

Punctual departures. Adequate overheard space.

Food was mediocre for a 5-6 hour flight. I expected a little bit more.

LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

LGA
PIT
Excellent 10.0

Our original flight was delayed and Marika, at the Delta gate of another flight to the same city, was able to get us on the flight that was going to our city. We were so grateful to get home before the winter storm! We appreciate your staff and the help their quick, efficient manner to get us on a new flight!

Fri, Mar 2
LIS
SFO
24h 15m
Mon, Mar 5
SFO
LIS
34h 45m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 17
LIS
SFO
30h 44m
Sun, Mar 18
SFO
LIS
20h 05m
Trip: 2 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

LHR
SEA
Good 7.0

Serve was normal and so was the food.

Left the terminal building by bus to the aircraft. Had to exit the bus, WALK ACROSS the tarmac and up a set of stairs to the plane. REALLY, British Air couldn't find a proper gate at the terminal? What if it had been raining or my elderly mother that needs a wheel chair? BA needs to solve these problems fast if they want my service in the future.

TPA
LGW
Excellent 10.0

Friendly flight staff, spacious cabin, decent food, clean and well-maintained. Additionally, we were delayed by 30 minutes and still managed to arrive before our original arrival time at Gatwick. I haven’t flown BA in years but this trip has made me a new regular customer.

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

LHR
SFO
Okay 5.3

Cabin crew polite and courteous

Boarding via bus to plane was an added hassle The cabin temperature throughout flight was uncomfortably cold On each trip I have made with BA ( 6 in last year USA to U.K. and Spain) lack of overhead luggage space is always an issue. I paid 65 pounds for an extra check-on small suitcase, yet I couldn’t even put a small holdall in overhead because others had whole suitcases in there. This needs to be re-evaluated!

Mon, Mar 12
LIS
SFO
34h 27m
Mon, Mar 19
SFO
LIS
28h 59m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
LIS
SFO
29h 00m
Tue, Mar 20
SFO
LIS
17h 35m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
TPA
LGW
Excellent 10.0

Friendly flight staff, spacious cabin, decent food, clean and well-maintained. Additionally, we were delayed by 30 minutes and still managed to arrive before our original arrival time at Gatwick. I haven’t flown BA in years but this trip has made me a new regular customer.

AUH
LHR
Excellent 10.0

I arrived safely and on time

Audio plug for my seat was broken, but I slept so it worked out Kay.

LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

LHR
SFO
Okay 5.3

Cabin crew polite and courteous

Boarding via bus to plane was an added hassle The cabin temperature throughout flight was uncomfortably cold On each trip I have made with BA ( 6 in last year USA to U.K. and Spain) lack of overhead luggage space is always an issue. I paid 65 pounds for an extra check-on small suitcase, yet I couldn’t even put a small holdall in overhead because others had whole suitcases in there. This needs to be re-evaluated!

YYZ
LHR
Mediocre 2.0

Rude staff at the airport. Short overlay did not have enough time to get our bags and checkin again that was ridiculous to have to check in again!

Tue, Jul 10
LIS
SFO
37h 10m
Sat, Jul 21
SFO
LIS
32h 15m
$1025
Trip: 12 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17568 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
TXL
Good 6.8

It was on time and we got there safely, otherwise not memorable in any way.

The staff...not very outgoing....they clearly wish that they were somewhere else.

IAD
IST
Excellent 10.0

Excellent service with comfort

All was great

KTM
IST
Mediocre 2.0

I did nit like anything...

I hate kayak..

IST
ZAG
Good 7.6

The food was great. The seats were soft and there was enough legroom.

We were stuck on an aisle where the seats don't adjust on one of the flights, but it was a relatively short flight. The boarding process was a little disorganized, but we were able to get on the plane quickly. The worst part was the home airport. I don't know how much control Turkish airlines has over that airport, but the bathrooms we're absolutely disgusting.

IST
JFK
Excellent 8.0

Food, entertainment and service

narrow sitting space

Wed, Jan 24
LIS
SFO
15h 20m
Wed, Jan 31
SFO
LIS
20h 30m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
SEA
Excellent 8.3

Great movie selection

SEA
PDX
Excellent 9.6

Seats a bit cramped

CUN
JFK
Okay 4.6

Delta seats are comfortable and media ststem is good.

Flight was late and the staff wasn't kind Neither at JFK gate neither on both flights. Looks like they are doing you a favor to listen to you when you ask them something.

ATL
SMF
Excellent 10.0

Anna from South Africa was funny, and super accomidatinf

LGA
PIT
Excellent 10.0

Our original flight was delayed and Marika, at the Delta gate of another flight to the same city, was able to get us on the flight that was going to our city. We were so grateful to get home before the winter storm! We appreciate your staff and the help their quick, efficient manner to get us on a new flight!

Wed, Mar 14
LIS
SFO
29h 00m
Tue, Mar 20
SFO
LIS
21h 55m
Trip: 7 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
YYZ
LHR
Mediocre 2.0

Rude staff at the airport. Short overlay did not have enough time to get our bags and checkin again that was ridiculous to have to check in again!

LHR
IAH
Mediocre 2.0

Unfortunately, I couldn't travel as I was told to bring the credit card used in the booking of my flight. This was not explained in the booking option. Thus I would need a refund on my flight ticket.

BOM
LHR
Excellent 8.3

Economy plus was great. Economy was a little rough for me as seating was much less comfortable

TPA
LGW
Excellent 10.0

Friendly flight staff, spacious cabin, decent food, clean and well-maintained. Additionally, we were delayed by 30 minutes and still managed to arrive before our original arrival time at Gatwick. I haven’t flown BA in years but this trip has made me a new regular customer.

LHR
DFW
Excellent 10.0

I arrived safely and on time.....good movie selection

Breakfast out of London was not appealing - eggs not tasty and potatoes mushy and lacking in taste.

Wed, Jul 11
LIS
SFO
37h 10m
Wed, Jul 18
SFO
LIS
32h 15m
$1029
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17568 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
SFO
IST
Good 6.6

The entertainment system was nice, the drinks were good, and the food was OK in Economy Class

The cabin crew was not very outgoing and not proactive in any way when it came to helping customers. The overall 777 plane was OK. I would have liked to see if the A380 was nicer. The entertainment screens were lower resolution with a good, but not great selection of content.

KTM
IST
Mediocre 2.0

I did nit like anything...

I hate kayak..

DAC
IST
Excellent 8.0

Food, entertainment and service

No boarding in Turkey airport, difficult to get down and up after long flight, narrow sitting space

IST
ATL
Mediocre 3.6

the flight attendants were more present and even spoke English.

IST
SFO
Okay 4.6

Good entertainment.

Need to have better boarding and organization.

Wed, May 2
LIS
SFO
14h 45m
Mon, May 7
SFO
LIS
15h 50m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Feb 25
LIS
SFO
27h 25m
Thu, Mar 8
SFO
LIS
17h 15m
Trip: 12 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
BOM
LHR
Excellent 8.3

Economy plus was great. Economy was a little rough for me as seating was much less comfortable

LHR
FCO
Excellent 10.0

Friendly crew. Good day in the skies.

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

TPA
LGW
Excellent 10.0

Friendly flight staff, spacious cabin, decent food, clean and well-maintained. Additionally, we were delayed by 30 minutes and still managed to arrive before our original arrival time at Gatwick. I haven’t flown BA in years but this trip has made me a new regular customer.

YYZ
LHR
Mediocre 2.0

Rude staff at the airport. Short overlay did not have enough time to get our bags and checkin again that was ridiculous to have to check in again!

Mon, Mar 26
LIS
SFO
25h 55m
Sat, Apr 7
SFO
LIS
17h 50m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 26
LIS
SFO
27h 25m
Thu, Mar 8
SFO
LIS
21h 25m
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 14916 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
YYZ
LHR
Mediocre 2.0

Rude staff at the airport. Short overlay did not have enough time to get our bags and checkin again that was ridiculous to have to check in again!

ORD
LHR
Excellent 9.3

the first flight from Chicago to London was great. very good aircraft.

LHR
JFK
Excellent 8.0

Flight wasn’t full so it was great to be able to stretch out!

One older cabin female attendant was quite arrogant - otherwise all good!

LHR
SFO
Okay 5.3

Cabin crew polite and courteous

Boarding via bus to plane was an added hassle The cabin temperature throughout flight was uncomfortably cold On each trip I have made with BA ( 6 in last year USA to U.K. and Spain) lack of overhead luggage space is always an issue. I paid 65 pounds for an extra check-on small suitcase, yet I couldn’t even put a small holdall in overhead because others had whole suitcases in there. This needs to be re-evaluated!

LHR
TLV
Okay 5.6

the staff

aircraft, food, entertainment

Portugal to San Francisco Flight Information

Flights Arrive in San Francisco
Flights Depart from Portugal
Flight Price $668
Airlines British Airways, Delta, Turkish Airlines
*
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.