PHX - OPO

$364 Find Cheap Flights from Phoenix 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 Phoenix to Porto departing on 8/17. 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 Phoenix to Porto, 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 Phoenix to Porto, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$725
Overall average: $748
KLM
Sun 4/19Tue 5/5
PHX - OPO • 1 stop
Cheapest one-way
$364
Typical prices: $377-$855
Air Canada
Mon 8/17
PHX - OPO • 1 stop
Top airlines
Cheapest • from $725 (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 Phoenix and Porto. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $854 (round-trip)
Shortest trip • 13h 56m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Phoenix to Porto (PHX-OPO)

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

Sun, Apr 19 - Tue, May 5
KLM Logo
3:25 pm - 10:00 pm
PHX
-
OPO
22h 35m
1 stop
KLM Logo
6:15 am - 1:10 pm
OPO
-
PHX
14h 55m
1 stop
$725KLM
Sun, Apr 19 - Fri, May 1
Delta Logo
3:25 pm - 10:00 pm
PHX
-
OPO
22h 35m
1 stop
Delta Logo
11:25 am - 11:46 pm
OPO
-
PHX
20h 21m
2 stops
$729Delta
Sun, Apr 19 - Tue, May 5
British Airways Logo
9:00 pm - 8:35 pm
PHX
-
OPO
15h 35m
1 stop
British Airways Logo
8:20 am - 9:04 pm
OPO
-
PHX
20h 44m
2 stops
$731British Airways
Mon, Apr 20 - Thu, Apr 30
United Airlines Logo
11:59 pm - 11:10 am
PHX
-
OPO
27h 11m
2 stops
United Airlines Logo
6:00 am - 7:39 pm
OPO
-
PHX
21h 39m
2 stops
$746United Airlines
Mon, Apr 20 - Thu, Apr 30
United Airlines Logo
4:34 pm - 3:45 pm
PHX
-
OPO
39h 11m
2 stops
United Airlines Logo
6:00 am - 9:23 am
OPO
-
PHX
35h 23m
2 stops
$751United Airlines
Mon, Apr 20 - Thu, Apr 30
United Airlines Logo
3:30 pm - 3:45 pm
PHX
-
OPO
40h 15m
2 stops
United Airlines Logo
6:00 am - 11:53 pm
OPO
-
PHX
25h 53m
2 stops
$752United Airlines
Sun, Apr 19 - Fri, May 1
United Airlines Logo
11:59 pm - 11:15 am
PHX
-
OPO
27h 16m
2 stops
United Airlines Logo
12:35 pm - 9:54 am
OPO
-
PHX
29h 19m
2 stops
$760United Airlines
Wed, Apr 15 - Wed, Apr 29
British Airways Logo
10:14 am - 6:55 pm
PHX
-
OPO
24h 41m
2 stops
British Airways Logo
8:20 am - 11:59 pm
OPO
-
PHX
23h 39m
2 stops
$765British Airways
Wed, May 6 - Mon, May 11
KLM Logo
3:25 pm - 10:00 pm
PHX
-
OPO
22h 35m
1 stop
KLM Logo
6:30 am - 8:22 pm
OPO
-
PHX
21h 52m
2 stops
$776KLM
Sun, Apr 19 - Fri, May 1
Delta Logo
3:25 pm - 10:00 pm
PHX
-
OPO
22h 35m
1 stop
Delta Logo
11:25 am - 11:46 pm
OPO
-
PHX
20h 21m
2 stops
$778Delta
Booking Insights

KAYAK's insights & trends for Phoenix to Porto flights

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

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport to Porto is November, where tickets cost $590 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,169 and $1,168 respectively.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport to Porto, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$364
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 46% increase in price.
Flight from Phoenix to Porto

When to book flights from Phoenix to Porto

Are your dates flexible? Find out the best times to travel from Phoenix 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 Phoenix to Porto flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Porto?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Porto was $364 for a one-way ticket and $725 for a round-trip.

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

    A passport is required to fly from Phoenix to Porto.

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

    Phoenix airport is called Phoenix Sky Harbor Intl and the only airport in Porto is Porto.

  • Which aircraft models fly most regularly from Phoenix to Porto?

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

  • Which airline alliances offer flights from Phoenix to Porto?

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

  • Which is the best airline for flights from Phoenix to Porto, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to Porto are Delta and United Airlines. With an average price for the route of $958 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $885 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Phoenix 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 Phoenix to Porto.

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

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

Reviews of the top 4 airlines serving from Phoenix to Porto

 
See real verified KAYAK customer reviews for airlines flying from Phoenix 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 Phoenix 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 8315 reviews
8.5Crew
7.9Comfort
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

the crew cancel the morning service due to the weather. Then the flight got deverted to Nashville . we were on the ground for over two hours the only gave us water once... no food or any snacks.... the crew should have handled better and offered something to passengers.

2.0 MediocreAnonymous, Mar 2026
HNL - ATL
Read more Delta reviews

the crew cancel the morning service due to the weather. Then the flight got deverted to Nashville . we were on the ground for over two hours the only gave us water once... no food or any snacks.... the crew should have handled better and offered something to passengers.

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 cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

This was a Latam operated flight. Seats seemed a bit narrow in business class. Older aircraft.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

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

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

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

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

The baggage claim experience was poor. The plane crew and the AA app said that checked baggage in CLT would be at carousel 7 but the sign at Baggage Claim said carousel 1. The carousel 1 sign had the correct flight # listed above the belt. But the luggage never came. I went to an AA baggage claim office after about 1 hour and the clerk directed me to another AA room that was poorly marked, with a closed door and no obvious way to know what to do. Finally someone opened the door and my bag was inside. The clerk was totally unable to explain why.

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

Amazing I love American. I’ll never fly anyone else if I can help it.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

Better service. No food options, but we did get drinks and a cookie.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Liked that it was on time. Staff professional and friendly.

WiFi wasn’t available to economy until the end of the flight.

Very good staff members with sincere passion and responsibility in their job.

We paid for Business Class seats, but system did not have us and they were not available.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

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

Information on your arrival and departure airports