$359 Find Cheap Flights from Porto to California

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto to California departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to California, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto to California, as well as popular online travel agencies
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Cheap Flights from Porto to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$639
San Francisco
San Francisco1 stop$760
Sacramento
Sacramento2 stops$1,096
Los Angeles
Los Angeles1 stop$639
San Francisco
San Francisco1 stop$760
Sacramento
Sacramento2 stops$1,096

Book Cheap Porto to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Porto to California that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto to California

Wed, May 6 - Sun, May 10
Iberia Logo
8:35 am - 6:10 pm
OPO
-
LAX
17h 35m
1 stop
Iberia Logo
7:55 pm - 9:20 pm
LAX
-
OPO
17h 25m
1 stop
$639Iberia
Sat, Apr 25 - Sun, May 10
Iberia Logo
8:35 am - 7:10 pm
OPO
-
LAX
18h 35m
1 stop
Iberia Logo
7:55 pm - 9:20 pm
LAX
-
OPO
17h 25m
1 stop
$645Iberia
Wed, May 6 - Sun, May 10
Iberia Logo
8:35 am - 6:10 pm
OPO
-
LAX
17h 35m
1 stop
Iberia Logo
7:55 pm - 9:20 pm
LAX
-
OPO
17h 25m
1 stop
$646Iberia
Thu, May 7 - Sat, May 23
LEVEL Logo
10:00 pm - 6:10 pm
OPO
-
LAX
28h 10m
1 stop
LEVEL Logo
8:55 pm - 4:10 pm
LAX
-
OPO
35h 15m
1 stop
$731LEVEL
Thu, Apr 23 - Thu, May 7
Multiple Airlines Logo
7:00 am - 4:10 pm
OPO
-
SFO
17h 10m
1 stop
Multiple Airlines Logo
5:45 pm - 11:55 pm
SFO
-
OPO
22h 10m
1 stop
$760Multiple Airlines
Thu, Apr 23 - Thu, May 7
Multiple Airlines Logo
7:00 am - 4:10 pm
OPO
-
SFO
17h 10m
1 stop
Multiple Airlines Logo
5:45 pm - 11:55 pm
SFO
-
OPO
22h 10m
1 stop
$762Multiple Airlines
Mon, Jun 1 - Mon, Jun 15
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
9:45 am - 11:45 am
LAS
-
OPO
18h 00m
1 stop
$763Air Transat
Thu, Apr 23 - Sat, May 2
KLM Logo
5:00 am - 11:45 am
OPO
-
SFO
14h 45m
1 stop
KLM Logo
8:10 pm - 10:00 pm
SFO
-
OPO
17h 50m
1 stop
$786KLM
Thu, May 21 - Thu, May 28
KLM Logo
11:25 am - 11:45 am
OPO
-
SFO
32h 20m
1 stop
KLM Logo
11:31 am - 10:30 am
SFO
-
OPO
14h 59m
1 stop
$790KLM
Mon, Jun 1 - Mon, Jun 15
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
9:45 am - 11:45 am
LAS
-
OPO
18h 00m
1 stop
$795Air Transat
Booking Insights

KAYAK's insights & trends for Porto to California flights

Get data-powered insights and trends into flights from Porto to California to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Porto to California?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Porto to California departing in May.

What is the cheapest month to fly from Porto to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto to California, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Porto to California is May, when tickets cost $751 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is $940 and $938 respectively.

Good to know

Low seasonJanuary
Cheapest flight$359
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Porto to Los Angeles

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from Porto to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Porto to California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Porto to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Porto to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Porto to California

 
See real verified KAYAK customer reviews for airlines flying from Porto to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
TAP AIR PORTUGALOverall score based on 2197 reviews
7.0Boarding
7.8Crew
6.2Food
6.3Entertainment
7.1Comfort
Airline reviews

Menzies group staff not very sympathetic good at breaking up families during the boarding process

10.0 ExcellentTiago, Apr 2026
LIS - LHR
Read more TAP AIR PORTUGAL reviews

Menzies group staff not very sympathetic good at breaking up families during the boarding process

They left our luggage uncovered on tarmac in pouring rain during an hour delay of departure! At our final destination, we found ALL OF OUR CLOTHES/SHOES soaked all the way through!! Our 1st connection plane was a great business class accommodation but only 50 minutes long. Our 2nd connection from Lisbon (another delay with luggage uncovered on tarmac) had only the extra legroom and mediocre food in business class - no entertainment and no extra comfort seating. Will not use TAP Air Portugal again!

The crew was great. There was a big guy sitting next to me who was hanging over my side of the armrest the entire time. Maybe some information about "Be considerate of your neighbors, this is tight space, be kind". The breakfast sandwich was not appealing at all.

Kayak let me choose these flights on TAP but then after 2 months, cancelled my flights because they didn't think 90 minutes was enough time for the connection. I notice that neither flight was actually cancelled. Just my reservation. Why let me go through all of that effort to find the right flights for us, only to cancel it from underneath us 2 months later leaving us scrambling to find an alternative?

It was a good experience overall. We were however delayed by over 3 hours due to a security issue with one of the passengers inadvertently leaving a power bank in a luggage she was using as carrying on but then had to be moved int check in due to spacing issues. The airline staff had requested that she checked her bags in, but should have reminded her about removing all hazardous material like her power bank. When she eventually remembered as we were on the plane, we had to turn back and go through security all over again. Hence delaying our takeoff. The incident could have been prevented if staff reminded these passengers to remove their power banks.

this flight was awful from pre-boarding to on the plane. There needs to be more coordination between TAP and My Way. We were in first class and I am handicapped. BY the time we got on the plane there was no place for our baggage and the crew did not handle the situation well. They gave us an argument and said that we'd have to have it checked. Then, after I complained they moved some people's bags to put our small carry ons several seats back of our seats which were in Row 4.

Bad. They gave me a voucher for food to use at the airport but didn’t have time since I had to catch the other plane. No refunds and lack of communication

Negative. Food was awful, seat broken, flight was late, baggage lost and damaged

The ground staff did not load my bag onto the plane and despite me watching from the bus that my bag is not being loaded and taken back on the cart to the terminal, I pointed out to the staff and ge laughed upon checking my tag and knowing they made a mistake. Instead of calling the cart back and loading it he said we can’t fo anything and you should file a report upon landing at RAK. I told them my stay there is short and i needed my bag as it had everything I needed but no avail. Even the pilot was informed, staff of the plane was aware but all in don’t care mode. Upon arriving at Marrakech RAK, i filed a report and being told it might come in next flight tomorrow and we don’t provide delivery service, you must come and pick it up. If it doesn’t arrive on time then it will be sent to your home in the US. Unbelievable stress and inconvenience that could have been easily prevented by the ground staff.

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

I like crew. They are friendly. The flight was delayed to take off for 1hr and that caused panic at Houston Airport to catch connecting flight due to security check delay. If it has reached on time I would have sufficient time in collecting bags and security check

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Everything you need to know for your flight from Porto to California

Information on your arrival and departure airports