How long is the flight from Phoenix Sky Harbor Intl Airport to Porto?

For as low as $461, United Airlines can have you in Porto from Phoenix Sky Harbor Intl Airport in 17h 27m. Airlines will cover a distance of 5342 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Porto round-trip?

Flying on United Airlines is currently your cheapest option to Porto, with prices starting at $585. Additional round-trip tickets that might be worth considering are offered by American Airlines and British Airways, with the lowest prices starting at $592 and $600, respectively. Users have found that United Airlines is 27% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What are the most popular airlines that fly from Phoenix Sky Harbor Intl Airport to Porto?

When booking a flight from Phoenix Sky Harbor Intl Airport to Porto, you may want to consider flying on United Airlines, Delta or American Airlines as they are the most popular for this route.

What is the cheapest time of day to fly from PHX to OPO?

When flying from Phoenix Sky Harbor Intl Airport to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Phoenix Sky Harbor Intl Airport-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Phoenix Sky Harbor Intl Airport-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Porto flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Phoenix Sky Harbor Intl Airport-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Porto from Phoenix Sky Harbor Intl?

Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Phoenix Sky Harbor Intl to Porto. 5 airlines have flights to Porto from Phoenix Sky Harbor Intl on a regular basis. Booking flights from Phoenix Sky Harbor Intl to Porto should not be difficult; the airport handles an average of 0 inbound flights from Phoenix Sky Harbor Intl per day.

Can I find deals for flights from Sky Harbor Intl to Porto that include hotel bookings?

Yes. In addition to deals on Sky Harbor Intl to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sky Harbor Intl to Porto?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Porto.

Can I find deals for business class flights from Sky Harbor Intl to Porto?

Yes. Cheapflights offers flight deals from Sky Harbor Intl to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$204+ Flights from Phoenix Sky Harbor Intl Airport to Porto

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Sky Harbor Intl to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sky Harbor Intl to Porto

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$437 (United Airlines)
One-way from	$204 (Cheapflightsfares)
Popular in	December
Cheapest in	November
Average price	$741

Provider with most accurate pricing for Phoenix Sky Harbor Intl-Porto flight deals.

Search Deals

Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Porto flights.

Search Deals

From Phoenix Sky Harbor Intl to Porto

Search Deals

One-way flight from Phoenix Sky Harbor Intl to Porto

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($25 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Find flight deals from Sky Harbor Intl to Porto

Cheapest flights from Sky Harbor Intl to Porto
Explore the most affordable flight options available from Sky Harbor Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Mon 2/238:28 pmPHX - OPO

3 stops30h 02mUnited Airlines

Tue 3/1012:35 pmOPO - PHX

2 stops27h 55mUnited Airlines

Deal found 1/7

$437

Wed 1/288:25 pmPHX - OPO

2 stops16h 35mMultiple Airlines

Tue 2/38:20 amOPO - PHX

2 stops18h 09mMultiple Airlines

Deal found 1/7

$457

Wed 3/47:13 amPHX - OPO

2 stops17h 27mAmerican Airlines

Thu 3/128:20 amOPO - PHX

2 stops21h 30mAmerican Airlines

Deal found 1/7

$461

Wed 1/2810:22 amPHX - OPO

2 stops17h 53mSWISS

Mon 2/212:05 pmOPO - PHX

2 stops42h 52mSWISS

Deal found 1/7

$470

Mon 2/2311:50 pmPHX - OPO

2 stops27h 40mDelta

Tue 3/1011:25 amOPO - PHX

2 stops30h 25mDelta

Deal found 1/7

$471

Wed 1/282:33 pmPHX - OPO

2 stops22h 27mIberia

Mon 2/28:40 pmOPO - PHX

2 stops29h 49mIberia

Deal found 1/7

$472

Wed 3/117:00 amPHX - OPO

2 stops23h 15mMultiple Airlines

Wed 4/2212:35 pmOPO - PHX

1 stop18h 23mMultiple Airlines

Deal found 1/7

$477

Wed 3/48:00 amPHX - OPO

2 stops22h 15mMultiple Airlines

Thu 3/1212:35 pmOPO - PHX

1 stop16h 40mMultiple Airlines

Deal found 1/7

$489

Mon 4/201:23 pmPHX - OPO

2 stops18h 17mUnited Airlines

Thu 4/306:00 amOPO - PHX

2 stops24h 15mUnited Airlines

Deal found 1/8

$507

Thu 2/268:15 amPHX - OPO

2 stops16h 25mAmerican Airlines

Wed 3/48:20 amOPO - PHX

2 stops21h 47mAmerican Airlines

Deal found 1/6

$511

Wed 1/2812:56 pmPHX - OPO

2 stops17h 19mLufthansa

Mon 2/21:45 pmOPO - PHX

2 stops39h 55mLufthansa

Deal found 1/7

$513

Best flights from Sky Harbor Intl to Porto
Discover carefully curated flight deals from Sky Harbor Intl to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 8, 2026.

Mon 2/238:28 pmPHX - OPO

3 stops30h 02mUnited Airlines

Tue 3/1012:35 pmOPO - PHX

2 stops27h 55mUnited Airlines

Deal found 1/7

$437

Wed 3/47:13 amPHX - OPO

2 stops17h 27mAmerican Airlines

Thu 3/128:20 amOPO - PHX

2 stops21h 30mAmerican Airlines

Deal found 1/8

$461

Mon 2/2311:50 pmPHX - OPO

2 stops27h 40mDelta

Tue 3/1011:25 amOPO - PHX

2 stops30h 25mDelta

Deal found 1/7

$471

Fri 1/237:08 amPHX - OPO

2 stops17h 32mIberia

Mon 2/28:40 pmOPO - PHX

2 stops29h 49mIberia

Deal found 1/8

$522

Fri 1/233:50 pmPHX - OPO

1 stop35h 40mMultiple Airlines

Wed 2/45:00 amOPO - PHX

2 stops19h 35mMultiple Airlines

Deal found 1/7

$527

Fri 3/273:50 pmPHX - OPO

1 stop23h 10mKLM

Tue 3/316:15 amOPO - PHX

1 stop14h 55mKLM

Deal found 1/7

$556

Mon 4/201:23 pmPHX - OPO

2 stops18h 17mUnited Airlines

Thu 4/306:00 amOPO - PHX

2 stops24h 15mUnited Airlines

Deal found 1/8

$507

Tue 2/311:00 amPHX - OPO

2 stops17h 45mAmerican Airlines

Sun 2/88:20 amOPO - PHX

2 stops20h 46mAmerican Airlines

Deal found 1/8

$511

Fri 1/2310:06 amPHX - OPO

2 stops18h 39mAmerican Airlines

Wed 2/48:20 amOPO - PHX

2 stops20h 29mAmerican Airlines

Deal found 1/8

$511

Thu 2/267:05 amPHX - OPO

2 stops19h 25mUnited Airlines

Wed 3/412:35 pmOPO - PHX

1 stop16h 02mUnited Airlines

Deal found 1/6

$550

Last-minute flights from Sky Harbor Intl to Porto
Discover last-minute flight deals from Sky Harbor Intl to Porto. Data last updated January 8, 2026 and is based on user searches.

Fri 1/237:08 amPHX - OPO

2 stops21h 37mIberia

Mon 2/28:40 pmOPO - PHX

2 stops29h 49mIberia

Deal found 1/7

$522

Fri 1/233:50 pmPHX - OPO

1 stop35h 40mMultiple Airlines

Wed 2/45:00 amOPO - PHX

2 stops19h 35mMultiple Airlines

Deal found 1/7

$527

Wed 1/288:25 pmPHX - OPO

2 stops16h 35mMultiple Airlines

Tue 2/38:20 amOPO - PHX

2 stops18h 09mMultiple Airlines

Deal found 1/7

$457

Wed 1/2810:22 amPHX - OPO

2 stops17h 53mSWISS

Mon 2/212:05 pmOPO - PHX

2 stops42h 52mSWISS

Deal found 1/7

$470

Wed 1/282:33 pmPHX - OPO

2 stops22h 27mIberia

Mon 2/28:40 pmOPO - PHX

2 stops29h 49mIberia

Deal found 1/7

$472

Wed 1/2812:56 pmPHX - OPO

2 stops17h 19mLufthansa

Mon 2/21:45 pmOPO - PHX

2 stops39h 55mLufthansa

Deal found 1/7

$513

Wed 1/281:20 pmPHX - OPO

2 stops20h 25mBritish Airways

Mon 2/25:30 pmOPO - PHX

1 stop31h 45mBritish Airways

Deal found 1/7

$514

Mon 2/236:01 pmPHX - OPO

2 stops32h 29mUnited Airlines

Tue 3/1012:35 pmOPO - PHX

1 stop16h 40mUnited Airlines

Deal found 1/7

$437

Mon 2/2311:50 pmPHX - OPO

2 stops27h 40mDelta

Tue 3/1011:25 amOPO - PHX

2 stops30h 25mDelta

Deal found 1/7

$471

Thu 2/268:15 amPHX - OPO

2 stops16h 25mAmerican Airlines

Wed 3/48:20 amOPO - PHX

2 stops21h 47mAmerican Airlines

Deal found 1/6

$511

Thu 2/268:30 amPHX - OPO

2 stops18h 00mUnited Airlines

Thu 3/512:35 pmOPO - PHX

1 stop17h 40mUnited Airlines

Deal found 1/8

$525

One-way flights from Sky Harbor Intl to Porto
Search for one-way flight options from Sky Harbor Intl to Porto. Find affordable one-way fares based on user searches. Data last updated January 8, 2026.

Wed 1/288:25 pmPHX - OPO

2 stops16h 35mMultiple Airlines

Deal found 1/7

$204

Mon 4/278:00 amPHX - OPO

2 stops31h 25mMultiple Airlines

Deal found 1/7

$209

Wed 1/283:50 pmPHX - OPO

1 stop35h 35mAir France

Deal found 1/7

$210

Wed 4/86:32 amPHX - OPO

2 stops17h 08mAmerican Airlines

Deal found 1/7

$238

Wed 4/83:30 pmPHX - OPO

2 stops23h 55mLufthansa

Deal found 1/8

$253

Fri 1/303:07 pmPHX - OPO

2 stops17h 53mAmerican Airlines

Deal found 1/8

$258

Wed 4/111:00 amPHX - OPO

2 stops20h 40mLufthansa

Deal found 1/7

$295

Wed 4/11:23 pmPHX - OPO

2 stops37h 52mUnited Airlines

Deal found 1/8

$359

Fri 3/611:08 pmPHX - OPO

2 stops29h 37mIberia

Deal found 1/8

$373

Fri 3/610:24 pmPHX - OPO

3 stops51h 11mMultiple Airlines

Deal found 1/8

$374

Thu 5/146:32 amPHX - OPO

2 stops17h 08mAmerican Airlines

Deal found 1/8

$389

Mon 6/112:40 pmPHX - OPO

2 stops58h 10mAir Canada

Deal found 1/7

$414

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 2/23

8:28 pm-9:30 am

3 stops30h 02m

Porto

Tue 3/10

12:35 pm-9:30 am

2 stops27h 55m

$437

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 3/4

7:13 am-7:40 am

2 stops17h 27m

Porto

Thu 3/12

8:20 am-10:50 pm

2 stops21h 30m

$461

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 2/23

11:50 pm-10:30 am

2 stops27h 40m

Porto

Tue 3/10

11:25 am-10:50 am

2 stops30h 25m

$471

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

1:23 pm-3:40 pm

2 stops18h 17m

Porto

Thu 4/30

6:00 am-10:15 pm

2 stops24h 15m

$507

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 2/3

11:00 am-11:45 am

2 stops17h 45m

Porto

Sun 2/8

8:20 am-10:06 pm

2 stops20h 46m

$511

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 1/23

10:06 am-11:45 am

2 stops18h 39m

Porto

Wed 2/4

8:20 am-9:49 pm

2 stops20h 29m

$511

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 1/23

7:08 am-7:40 am

2 stops17h 32m

Porto

Mon 2/2

8:40 pm-7:29 pm

2 stops29h 49m

$522

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 1/23

3:50 pm-10:30 am

1 stop35h 40m

Porto

Wed 2/4

5:00 am-5:35 pm

2 stops19h 35m

$527

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

7:05 am-9:30 am

2 stops19h 25m

Porto

Wed 3/4

12:35 pm-9:37 pm

1 stop16h 02m

$550

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 3/27

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Tue 3/31

6:15 am-1:10 pm

1 stop14h 55m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 20 results

Compare providers for flights from Sky Harbor Intl to Porto

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Porto in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Ovago	Price Accuracy2 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Porto flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Phoenix Sky Harbor Intl Airport-Porto flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Porto flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Porto flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sky Harbor Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Sky Harbor Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Porto

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Porto?

The best time to book flights from Phoenix Sky Harbor Intl Airport to Porto is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Porto?

Currently, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Porto (average of $564). Flying from Phoenix Sky Harbor Intl Airport to Porto in June is currently the most expensive (average of $904). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Porto

See what other customers who have flown with Delta, Air Transat, and United Airlines from Phoenix Sky Harbor Intl Airport to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,032 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Transat

7.7

Good

491 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,143 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,097 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

British Airways

6.7

Okay

7,659 reviews

Delta

7.9

Good

8,032 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly into for flights to Porto from Phoenix Sky Harbor Intl?
Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Phoenix Sky Harbor Intl to Porto. 5 airlines have flights to Porto from Phoenix Sky Harbor Intl on a regular basis. Booking flights from Phoenix Sky Harbor Intl to Porto should not be difficult; the airport handles an average of 0 inbound flights from Phoenix Sky Harbor Intl per day.
How long is the flight from Phoenix Sky Harbor Intl Airport to Porto?
For as low as $461, United Airlines can have you in Porto from Phoenix Sky Harbor Intl Airport in 17h 27m. Airlines will cover a distance of 5342 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Porto round-trip?
Flying on United Airlines is currently your cheapest option to Porto, with prices starting at $585. Additional round-trip tickets that might be worth considering are offered by American Airlines and British Airways, with the lowest prices starting at $592 and $600, respectively. Users have found that United Airlines is 27% cheaper than the other options available to this destination.
Can I find deals for flights from Sky Harbor Intl to Porto that include hotel bookings?
Yes. In addition to deals on Sky Harbor Intl to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sky Harbor Intl to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Porto.
Can I find deals for business class flights from Sky Harbor Intl to Porto?
Yes. Cheapflights offers flight deals from Sky Harbor Intl to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Porto?
Currently, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Porto (average of $564). Flying from Phoenix Sky Harbor Intl Airport to Porto in June is currently the most expensive (average of $904). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Aveiro

Arcos de Valdevez

Coimbra

Vila Nova de Gaia

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sky Harbor Intl to Porto

Sky Harbor Intl to Lisbon flights

Sky Harbor Intl to Faro flights

Sky Harbor Intl to Ponta Delgada flights

Other flights from Sky Harbor Intl

Sky Harbor Intl to Provo flights

Sky Harbor Intl to Los Angeles flights

Sky Harbor Intl to Las Vegas flights

Sky Harbor Intl to San Diego flights

Sky Harbor Intl to Santa Ana flights

Sky Harbor Intl to Seattle flights

Other flights to Porto

Top 5 airlines flying from Sky Harbor Intl to Porto

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$585	Average$892	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$592	Average$743	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$600	Average$748	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$639	Average$866	FlexibilityNo cancel fee	On-timeN/A
Air Transat	Cheapest$797	Average$806	FlexibilityNo cancel fee	On-time50%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$204+ Cheap flights from Sky Harbor Intl (PHX) to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sky Harbor Intl to Porto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sky Harbor Intl to Porto

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sky Harbor Intl to Porto

Cheapest flights from Sky Harbor Intl to PortoExplore the most affordable flight options available from Sky Harbor Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Explore the most affordable flight options available from Sky Harbor Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Porto that are best for you.

Compare providers for flights from Sky Harbor Intl to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Porto in January.

Best time to book a flight from Sky Harbor Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Sky Harbor Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Porto

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Porto?

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Porto?

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated January 8, 2026.

See what other customers who have flown with Delta, Air Transat, and United Airlines from Phoenix Sky Harbor Intl Airport to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Porto from Phoenix Sky Harbor Intl?

How long is the flight from Phoenix Sky Harbor Intl Airport to Porto?

What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Porto round-trip?

Can I find deals for flights from Sky Harbor Intl to Porto that include hotel bookings?

How can I find direct flights from Sky Harbor Intl to Porto?

Can I find deals for business class flights from Sky Harbor Intl to Porto?

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Porto?

Traveling to a place near Porto?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sky Harbor Intl to Porto

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Sky Harbor Intl to Porto

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Sky Harbor Intl to Porto
Explore the most affordable flight options available from Sky Harbor Intl to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.