$254 Find Cheap Flights from Portugal to California

1 adult
1 adult, Economy

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 for flights to California
These are the airlines KAYAK users have selected most often from within our search results for flights to California
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KAYAK's insights & trends for flights to California

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

What is the cheapest flight to California?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to California from Portugal found in the last 72 hours was to San Francisco, at $669 round-trip. The most popular route is Lisbon (LIS) to San Francisco (SFO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $669.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal 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 Portugal to California is February, when tickets cost $757 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,120 and $986 respectively.

How far in advance should I book a flight from Portugal to California?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to California, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portugal to California, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Which is the cheapest airport to fly into in California?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in California is Los Angeles Airport (LAX), with an average flight price of $729.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$254
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Lisbon to San Francisco

FAQs for booking flights from Portugal to California

  • How does KAYAK find such low prices on flights from Portugal 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 Portugal to California.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portugal 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 Portugal 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 Portugal 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 Portugal 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 Portugal to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to California?

    Based on KAYAK data, the cheapest day to fly to California is Sunday where round-trip tickets can be as cheap as $812. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $1,098 on average.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally at night, when round-trip flights cost $716 on average. Morning departures are around 5% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,024.

Top 5 airlines serving from Portugal to California

 
See real verified KAYAK customer reviews for airlines flying to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to California. 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 Portugal 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.
8.0
DeltaOverall score based on 7963 reviews
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
8.2Boarding
Airline reviews

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

2.0 MediocreAnonymous, Jun 2025BOS - LAX
Read more Delta reviews

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

I love the free WiFi!! Crew was nice. Bathroom was decent. First time flying delta in a long time and I enjoyed it. Will definitely look into booking with Delta more but I think Delta is a little more expensive than the other airlines.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

Very pleasant flight, crew was very nice. The flight was really smooth, big plane. The seats are kind of close together, so comfort was just OK. The boarding process on the way back to New York was a little chaotic. It took a long time.There were no announcements, no loudspeaker just one staff yelling out of instructions and a lot of people crowding in before their term to board. So that could really be improved a lot.

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Boarding went fast. Lisbon's gates are too small for the flights they serve.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Our flight was canceled for a reason that suggests gross mismanagement. We were re-booked for a flight to a different airport.

Worst: long walk to baggage claim Best: left on time

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

The United flight was excellent! The flight attendants were attentive and nice, and the food was very good! And the glasses are larger than on Lufthansa flights! I don’t want to have to ask for 15 glasses of water because their glasses are ridiculously small!

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Book cheap flights from Portugal to California

Recent round-trip flight deals

 
These are the cheapest round-trip flights to California found on KAYAK in the last 72 hours.
9/12Fri
1 stop
27h 25mOPO-LAX
9/14Sun
1 stop
16h 40mLAX-OPO
$572
9/6Sat
1 stopTAP AIR PORTUGAL
25h 10mOPO-LAX
9/13Sat
1 stopTAP AIR PORTUGAL
14h 20mLAX-OPO
$582
10/6Mon
1 stopDelta
14h 45mLIS-SFO
10/26Sun
2 stopsDelta
22h 20mSFO-LIS
$610
10/7Tue
1 stopDelta
14h 45mLIS-SFO
10/21Tue
1 stopDelta
18h 45mSFO-LIS
$611
10/16Thu
1 stopBritish Airways
18h 05mLIS-SFO
10/30Thu
1 stopBritish Airways
20h 25mSFO-LIS
$633
10/6Mon
1 stopBritish Airways
18h 10mLIS-SFO
10/26Sun
1 stopBritish Airways
16h 15mSFO-LIS
$667
9/4Thu
1 stopUnited Airlines
31h 01mOPO-SFO
9/14Sun
1 stopUnited Airlines
25h 50mSFO-OPO
$723
9/4Thu
2 stopsUnited Airlines
18h 50mOPO-SFO
9/11Thu
1 stopUnited Airlines
16h 05mSFO-OPO
$728
9/8Mon
1 stopLufthansa
16h 15mOPO-SFO
9/14Sun
1 stopLufthansa
18h 15mSFO-OPO
$729
9/7Sun
1 stopLufthansa
20h 45mOPO-SFO
9/12Fri
1 stopLufthansa
18h 15mSFO-OPO
$822

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to California found on KAYAK in the last 72 hours.
9/22Mon
1 stop
28h 00mLIS-SFO
$254
10/16Thu
1 stop
28h 05mOPO-LAX
$258
9/8Mon
2 stopsBritish Airways
19h 39mOPO-SFO
$647
8/30Sat
nonstopTAP AIR PORTUGAL
12h 30mLIS-LAX
$705
9/14Sun
nonstopTAP AIR PORTUGAL
12h 30mLIS-LAX
$709
6/22Sun
1 stopBritish Airways
19h 38mLIS-SFO
$721
8/13Wed
2 stopsDelta
21h 29mLIS-SJC
$756
8/11Mon
2 stopsDelta
18h 21mLIS-SJC
$761
7/29Tue
3 stopsUnited Airlines
37h 53mLIS-SJC
$927
7/28Mon
3 stopsUnited Airlines
36h 28mLIS-SJC
$933

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Last minute flights to California

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to California that are departing in the next 10 days.
6/19Thu
multi-stop
24h 15mLIS-SFO
7/5Sat
multi-stop
15h 45mSFO-LIS
$799
6/19Thu
multi-stop
24h 15mLIS-SFO
7/5Sat
multi-stop
15h 45mSFO-LIS
$818
6/19Thu
multi-stopDelta
19h 09mLIS-SFO
7/5Sat
multi-stopDelta
15h 45mSFO-LIS
$823
6/19Thu
multi-stopDelta
16h 25mLIS-SFO
7/5Sat
multi-stopDelta
15h 45mSFO-LIS
$824
6/19Thu
multi-stopBritish Airways
19h 38mLIS-SFO
7/5Sat
multi-stopBritish Airways
17h 35mSFO-LIS
$865
6/19Thu
multi-stopBritish Airways
19h 42mLIS-SFO
7/5Sat
multi-stopBritish Airways
17h 35mSFO-LIS
$876
6/19Thu
multi-stopUnited Airlines
16h 32mLIS-SFO
7/5Sat
multi-stopUnited Airlines
15h 00mSFO-LIS
$878
6/19Thu
multi-stopUnited Airlines
16h 32mLIS-SFO
7/5Sat
multi-stopUnited Airlines
18h 20mSFO-LIS
$879
6/19Thu
nonstopTAP AIR PORTUGAL
12h 35mLIS-SFO
7/5Sat
nonstopTAP AIR PORTUGAL
11h 10mSFO-LIS
$1,106
6/19Thu
nonstopTAP AIR PORTUGAL
12h 35mLIS-SFO
7/5Sat
nonstopTAP AIR PORTUGAL
11h 10mSFO-LIS
$1,125

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Everything you need to know for your flight to California

Cabin class types available on flights to California

Cabin classes available on flights to California. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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