LAX - OPO

$343 Find Cheap Flights from Los Angeles to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to Porto departing on 11/1. 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 Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Porto.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Porto.
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Everything you should know

Cheapest round-trip
$675
Typical prices: $863-$653
Multiple Airlines
Mon 9/21Fri 10/23
LAX - OPO • 1 stop
Cheapest one-way
$343
Typical prices: $351-$483
SWISS
Sun 11/1
LAX - OPO • 1 stop
Top airlines
Cheapest • from $718 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Los Angeles and Porto. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $780 (round-trip)
Shortest trip • 13h 41m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Los Angeles to Porto (LAX-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to Porto 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 Los Angeles to Porto

Mon, Sep 21 - Fri, Oct 23
Multiple Airlines Logo
8:50 pm - 9:20 pm
LAX
-
OPO
16h 30m
1 stop
Multiple Airlines Logo
10:00 pm - 7:00 pm
OPO
-
LAX
29h 00m
1 stop
$675Multiple Airlines
Sat, Sep 19 - Fri, Oct 23
Iberia Logo
8:55 pm - 4:10 pm
LAX
-
OPO
35h 15m
1 stop
Iberia Logo
10:00 pm - 7:00 pm
OPO
-
LAX
29h 00m
1 stop
$718Iberia
Sun, Nov 1 - Tue, Nov 10
Multiple Airlines Logo
11:30 am - 6:30 pm
LAX
-
OPO
23h 00m
2 stops
Multiple Airlines Logo
7:20 pm - 4:35 pm
OPO
-
LAX
29h 15m
1 stop
$720Multiple Airlines
Sun, Nov 1 - Tue, Nov 10
SWISS Logo
7:10 pm - 6:30 pm
LAX
-
OPO
15h 20m
1 stop
SWISS Logo
7:20 pm - 4:35 pm
OPO
-
LAX
29h 15m
1 stop
$721SWISS
Wed, Sep 23 - Fri, Oct 23
Multiple Airlines Logo
5:50 pm - 11:50 pm
LAX
-
OPO
22h 00m
1 stop
Multiple Airlines Logo
10:00 pm - 7:00 pm
OPO
-
LAX
29h 00m
1 stop
$726Multiple Airlines
Tue, Sep 22 - Fri, Oct 23
Multiple Airlines Logo
5:50 pm - 5:50 pm
LAX
-
OPO
16h 00m
1 stop
Multiple Airlines Logo
10:00 pm - 7:00 pm
OPO
-
LAX
29h 00m
1 stop
$737Multiple Airlines
Sun, Sep 20 - Fri, Oct 23
Multiple Airlines Logo
8:10 pm - 10:00 pm
LAX
-
OPO
17h 50m
1 stop
Multiple Airlines Logo
10:00 pm - 7:00 pm
OPO
-
LAX
29h 00m
1 stop
$742Multiple Airlines
Sat, Nov 7 - Wed, Nov 11
KLM Logo
10:59 pm - 9:05 am
LAX
-
OPO
26h 06m
1 stop
KLM Logo
5:00 am - 11:45 am
OPO
-
LAX
14h 45m
1 stop
$746KLM
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
11:58 pm - 9:30 am
LAX
-
OPO
25h 32m
2 stops
United Airlines Logo
6:00 am - 6:09 pm
OPO
-
LAX
20h 09m
2 stops
$747United Airlines
Sat, Nov 7 - Wed, Nov 11
KLM Logo
11:59 pm - 9:05 am
LAX
-
OPO
25h 06m
1 stop
KLM Logo
5:00 am - 3:22 pm
OPO
-
LAX
18h 22m
2 stops
$750KLM
Booking Insights

KAYAK's insights & trends for Los Angeles to Porto flights

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

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

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

What is the cheapest month to fly from Los Angeles to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Los Angeles to Porto, 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 Los Angeles to Porto is February, where tickets cost $621 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,146 and $1,142 respectively.

How far in advance should I book a flight from Los Angeles to Porto?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Los Angeles to Porto, 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 Los Angeles to Porto, you should book around 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$343
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Los Angeles to Porto

When to book flights from Los Angeles to Porto

Are your dates flexible? Find out the best times to travel from Los Angeles to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Los Angeles to Porto

  • Where can passengers spend the night at Porto airport?

    The airport is open 24h hence it is safe to spend a night there. OPO doesn’t have specific places designed for passengers to sleep during transit or for overnight campers. However, most passengers spend the night at the Cafes on the ground floor and the one on the third floor. You should make sure you carry an extra traveling blanket, earplugs, and an eye fold for more comfort.

  • Are there onsite hotels at Porto airport?

    There are several onsite hotels at Porto airport where passengers who have late arrival can seek accommodations for uninterrupted and comfortable sleep. These hotels offer top-notch services and free shuttle services from and to the airport. As such, you can consider booking your stay with Oporto Airport & Business hotel, Park Hotel Porto Aeroporto, OPO Hotel, and Stay Hotel Porto Aeroporto. All these hotels are located within 2 miles of the airport, hence easily accessible.

  • What facilities does Los Angeles offer nursing mothers?

    LAX has a very spacious lactation room that can accommodate multiple nursing mothers who want a quiet place to breastfeed and pump milk. The room is located at terminal 1 and is equipped with a Bluetooth lock to provide maximum privacy.

  • How can I fly from Los Angeles to Porto?

    There are multiple airlines operating between Los Angeles and Porto. Most of these airlines offer one-stop option flights, including Vueling, KLM, Iberia, and Delta Airlines, with stops at MAD. If you want to save money, you can opt for two-stop options such as American Airlines and British Airways, usually with stops at multiple airports including DFW, ORD, LHR, and MAD.

  • What is the cheapest flight from Los Angeles to Porto?

    In the last 3 days, the lowest price for a flight from Los Angeles to Porto was $343 for a one-way ticket and $675 for a round-trip.

  • Do I need a passport to fly between Los Angeles and Porto?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Los Angeles and on arrival in Porto.

  • Which airports will I be using when flying from Los Angeles to Porto?

    When flying out of Los Angeles you will be using Los Angeles. You will be landing at Porto, also known as Porto.

  • Which aircraft models fly most regularly from Los Angeles to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Los Angeles to Porto?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Los Angeles and Porto, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Porto from Los Angeles?

    Madrid is the most popular layover city among KAYAK users traveling from Los Angeles to Porto.

  • Which is the best airline for flights from Los Angeles to Porto, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Los Angeles to Porto are Delta and KLM. With an average price for the route of $863 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $830 and an overall rating of 7.8.

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

    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 Los Angeles to Porto.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Los Angeles 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 Los Angeles to Porto?

    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 to Porto with an airline and back to Los Angeles with another airline. Booking your flights between Los Angeles and OPO can sometimes prove cheaper using this method.

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

    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 to Porto from Los Angeles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Los Angeles to Porto

  • If you are flying from Los Angeles to Porto, it is vital that you arrive at the airport at least 3h before your scheduled flight time. This is to give you enough time to go through security screening, have time to explore airport attractions, and arrive at your boarding gate on time.
  • Los Angeles International Airport (LAX) has several parking lots where passengers who wish to leave their cars can park. If you are flying out for a long time, you can leave your car in the closed parking in the basement. LAX has parking at the new garage opposite the security post at the gate for daily parking. There is also parking for shuttle and other drivers who are either coming to drop off or pick up passengers at terminal 1.
  • If you want something to eat before you board your flight to Porto, Los Angeles airport has very many world-class lounges where you can get food and drinks. There are many airline-operated lounges that you can opt for, including Emirates Lounge, SkyTeam Air Lounge, and Centurion Lounge. These lounges offer great services to their clients. The best part is they are equipped with comfortable seats where you can complete unfinished work as you wait to board your flight.
  • These airlines operating from Los Angeles to Porto provide onboard entertainment for guests' enjoyment, such as Iberia. Onboard, there are activities you can play with other passengers, music and movies you can watch, as well as food and beverages.
  • If you arrive at Porto Airport and need vital information, you can visit the information desk at the arrivals and departures area. You can also get assistance with that information by asking the airport employees.

Reviews of the top 5 airlines serving from Los Angeles to Porto

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles to Porto. 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 Los Angeles to Porto? 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.
7.9
DeltaOverall score based on 8453 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

No screens or meal options. Freezing cold. Dirty seats. Left late.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

The business class seat is exceptional. I wish the food is more palatable.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Business class seats felt very cramped compared to other airlines.

OK, we were delayed and had to de plane and reboard.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight attendants in business class were rather indifferent While in second leg operated by Portugalia TAP subsidiary were outstanfy

Great service overall. One of the best international flight experiences Ive had.

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

We were unable to check in due to technical problems on TAP’s end. The flight was delayed forty minutes with no reason given. We received timely notice of the flight delay. We were also notified of a gate change. The new gate was at a different terminal. When we got to the new terminal, we learned that we had to go back to the old terminal first to check in. This information should have been included along with the gate change notification. Also unexplained, the steward skipped us when offering breakfast.

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 food left a lot to be desired. The crew was great

Horrible experience at tbe check in ladie she was very racist ,she doesn't speak portuguese too and forced me to check in my carrion bag and I saw everyone with carrion bag inside anda lot of space ,she was rude unprofessional

Departed late. Flight crew some of the most professional I have ever experienced. First time we’ve flown this airline

No difference between business class and normal same seat everything same, waste of money

In general, I've had excellent experiences with Iberia flights and will continue to use them. In this last flight there were two things that didn't go right. I didn't get the kosher meal I had pre-requested when I had checked in on-line. Things worked out OK as we ended up eating the fish and vegetarian choices, which were really good. The other issue was that some movies for me and my wife started fine but after 8-12 minutes the content just switched to something else. The flight attendant reset our entertainment systems, but the problem persisted. We ended up choosing other movies/TV shows that did work fine.

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

The food could be better, more snacks. And have some plugs to chargue the phone.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Everything you need to know for your flight from Los Angeles to Porto

Information on your arrival and departure airports