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

Flying on KLM is currently your cheapest option to Porto, with prices starting at $824. Additional round-trip tickets that might be worth considering are offered by Air Transat and Scandinavian Airlines, with the lowest prices starting at $906 and $927, respectively. Users have found that KLM is 6% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Porto one-way?

For one-way options, check prices for Air Transat. According to our data, you can fly for as low as $538. Users have also found prices from $802 and $804 on Air Canada and KLM, respectively.

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

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Porto flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 American Airlines, Air Canada or British Airways as they are the most popular for this route.

What is the cheapest day to fly round-trip from Phoenix Sky Harbor Intl Airport to Porto?

Travelers have found that booking a Tuesday departure is the best way to save up to 48% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Our data shows that March tends to be the cheapest month to fly to Porto from Phoenix Sky Harbor Intl Airport. Users have commonly found prices around $877 for the month, but tickets can be as low as $580. Due to multiple factors, prepare for potentially higher prices in December.

Most accurate provider : When it comes to deals on Phoenix Sky Harbor Intl Airport-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Porto flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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. 8 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.

$397+ Flights from Phoenix Sky Harbor Intl Airport to Porto

Q: How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to Porto?

Find a great deal and save up to 60% by booking at least 40 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Phoenix Sky Harbor Intl Airport to Porto within the next two weeks, with the cheapest ticket starting at $763.

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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

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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Porto are usually found in March or November, booked 39 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Sky Harbor Intl to Porto

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$648 (Gurufare)
One-way from	$397 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$604

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

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

Search Deals

From Phoenix Sky Harbor Intl to Porto

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One-way flight from Phoenix Sky Harbor Intl to Porto

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($59 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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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 March 26, 2025.

Sat 4/192:35 pmPHX - OPO

2 stops24h 45mMultiple Airlines

Sat 5/36:45 pmOPO - PHX

2 stops31h 22mMultiple Airlines

Deal found 3/25

$648

Sat 11/111:59 pmPHX - OPO

2 stops32h 16mUnited Airlines

Sat 11/812:30 pmOPO - PHX

2 stops39h 25mUnited Airlines

Deal found 3/25

$730

Mon 6/308:00 amPHX - OPO

1 stop17h 35mAir Canada

Tue 7/812:50 pmOPO - PHX

2 stops41h 05mAir Canada

Deal found 3/25

$783

Sat 4/193:05 pmPHX - OPO

1 stop16h 25mKLM

Sat 5/36:40 amOPO - PHX

2 stops20h 06mKLM

Deal found 3/25

$824

Wed 7/29:05 amPHX - OPO

2 stops18h 35mAmerican Airlines

Wed 7/98:15 amOPO - PHX

2 stops19h 21mAmerican Airlines

Deal found 3/25

$825

Thu 10/26:00 amPHX - OPO

2 stops18h 25mDelta

Sun 10/125:00 amOPO - PHX

2 stops21h 18mDelta

Deal found 3/25

$831

Thu 10/308:30 pmPHX - OPO

2 stops16h 30mBritish Airways

Sat 11/158:05 pmOPO - PHX

1 stop29h 20mBritish Airways

Deal found 3/25

$856

Fri 5/912:40 pmPHX - OPO

1 stop15h 05mAir Transat

Sat 5/241:30 pmOPO - PHX

1 stop30h 10mAir Transat

Deal found 3/25

$906

Thu 4/37:10 amPHX - OPO

2 stops25h 55mScandinavian Airlines

Wed 5/2112:15 pmOPO - PHX

2 stops42h 56mScandinavian Airlines

Deal found 3/25

$927

Tue 5/133:40 pmPHX - OPO

2 stops35h 45mSWISS

Fri 5/237:20 pmOPO - PHX

2 stops33h 55mSWISS

Deal found 3/25

$929

Thu 4/33:05 pmPHX - OPO

1 stop16h 25mAir France

Wed 5/214:20 pmOPO - PHX

1 stop28h 30mAir France

Deal found 3/25

$1,093

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 March 26, 2025.

Sat 4/192:35 pmPHX - OPO

2 stops24h 45mMultiple Airlines

Sat 5/36:45 pmOPO - PHX

2 stops31h 22mMultiple Airlines

Deal found 3/25

$648

Sat 4/193:05 pmPHX - OPO

1 stop16h 25mKLM

Sat 5/36:40 amOPO - PHX

2 stops20h 06mKLM

Deal found 3/25

$824

Fri 5/912:40 pmPHX - OPO

1 stop15h 05mAir Transat

Sat 5/241:30 pmOPO - PHX

1 stop30h 10mAir Transat

Deal found 3/25

$906

Thu 4/37:10 amPHX - OPO

2 stops25h 55mScandinavian Airlines

Wed 5/2112:15 pmOPO - PHX

2 stops42h 56mScandinavian Airlines

Deal found 3/25

$927

Tue 5/133:40 pmPHX - OPO

2 stops35h 45mSWISS

Fri 5/237:20 pmOPO - PHX

2 stops33h 55mSWISS

Deal found 3/25

$929

Tue 5/136:00 amPHX - OPO

2 stops25h 45mUnited Airlines

Fri 5/2312:35 pmOPO - PHX

1 stop14h 40mUnited Airlines

Deal found 3/25

$930

Wed 5/288:32 amPHX - OPO

2 stops19h 08mAmerican Airlines

Wed 6/118:15 amOPO - PHX

2 stops19h 39mAmerican Airlines

Deal found 3/25

$932

Wed 6/188:00 amPHX - OPO

1 stop17h 25mAir Canada

Thu 7/312:10 pmOPO - PHX

2 stops35h 12mAir Canada

Deal found 3/25

$990

Mon 6/161:25 pmPHX - OPO

2 stops20h 30mDelta

Mon 6/234:20 pmOPO - PHX

2 stops26h 13mDelta

Deal found 3/25

$1,031

Thu 4/33:05 pmPHX - OPO

1 stop16h 25mAir France

Wed 5/214:20 pmOPO - PHX

1 stop28h 30mAir France

Deal found 3/25

$1,093

Last-minute flights from Sky Harbor Intl to Porto
Discover last-minute flight deals from Sky Harbor Intl to Porto. Data last updated March 26, 2025 and is based on user searches.

Mon 3/3110:29 amPHX - OPO

2 stops22h 31mTAP AIR PORTUGAL

Tue 4/86:05 pmOPO - PHX

2 stops47h 14mTAP AIR PORTUGAL

Deal found 3/26

$1,316

Tue 4/11:42 pmPHX - OPO

3 stops35h 18mMultiple Airlines

Wed 4/94:55 pmOPO - PHX

3 stops36h 29mMultiple Airlines

Deal found 3/26

$945

Tue 4/16:45 pmPHX - OPO

1 stop16h 45mBritish Airways

Wed 4/98:20 pmOPO - PHX

1 stop30h 10mBritish Airways

Deal found 3/26

$1,228

Thu 4/37:10 amPHX - OPO

2 stops25h 55mScandinavian Airlines

Wed 5/2112:15 pmOPO - PHX

2 stops42h 56mScandinavian Airlines

Deal found 3/25

$927

Thu 4/38:02 amPHX - OPO

2 stops23h 28mDelta

Sun 4/275:00 amOPO - PHX

2 stops24h 40mDelta

Deal found 3/25

$1,038

Thu 4/33:05 pmPHX - OPO

1 stop16h 25mAir France

Wed 5/214:20 pmOPO - PHX

1 stop28h 30mAir France

Deal found 3/25

$1,093

Thu 4/310:22 amPHX - OPO

2 stops21h 08mDelta

Sat 5/36:40 amOPO - PHX

2 stops21h 41mDelta

Deal found 3/25

$1,038

Fri 4/44:55 pmPHX - OPO

1 stop31h 10mAir Transat

Sat 5/31:30 pmOPO - PHX

1 stop30h 10mAir Transat

Deal found 3/25

$921

Fri 4/412:38 pmPHX - OPO

1 stop13h 07mUnited Airlines

Thu 5/112:35 pmOPO - PHX

2 stops28h 08mUnited Airlines

Deal found 3/25

$1,017

Tue 4/87:15 amPHX - OPO

2 stops40h 30mSWISS

Fri 4/118:40 amOPO - PHX

2 stops21h 11mSWISS

Deal found 3/25

$1,180

Sat 4/192:35 pmPHX - OPO

2 stops24h 45mMultiple Airlines

Sat 5/36:45 pmOPO - PHX

2 stops31h 22mMultiple Airlines

Deal found 3/25

$648

Sat 4/193:05 pmPHX - OPO

1 stop16h 25mKLM

Sat 5/36:40 amOPO - PHX

2 stops20h 06mKLM

Deal found 3/25

$824

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 March 26, 2025.

Sun 5/43:02 pmPHX - OPO

3 stops44h 33mMultiple Airlines

Deal found 3/25

$397

Wed 6/412:40 pmPHX - OPO

1 stop15h 05mAir Transat

Deal found 3/25

$538

Thu 6/128:30 pmPHX - OPO

2 stops53h 05mAir Canada

Deal found 3/25

$802

Thu 6/123:05 pmPHX - OPO

1 stop16h 25mKLM

Deal found 3/25

$804

Wed 6/46:00 amPHX - OPO

2 stops17h 00mUnited Airlines

Deal found 3/25

$807

Tue 6/312:45 amPHX - OPO

2 stops26h 55mBritish Airways

Deal found 3/25

$1,257

Sat 5/312:40 amPHX - OPO

2 stops22h 55mIberia

Deal found 3/25

$2,335

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

Sat 4/19

2:35 pm-11:20 pm

2 stops24h 45m

Porto

Sat 5/3

6:45 pm-6:07 pm

2 stops31h 22m

$648

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 6/30

8:00 am-9:35 am

1 stop17h 35m

Porto

Tue 7/8

12:50 pm-9:55 pm

2 stops41h 05m

$783

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 9/3

6:00 am-9:25 am

2 stops19h 25m

Porto

Mon 9/8

9:00 am-5:45 pm

1 stop16h 45m

$810

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 4/19

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Sat 5/3

6:40 am-6:46 pm

2 stops20h 06m

$824

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 7/2

9:05 am-11:40 am

2 stops18h 35m

Porto

Wed 7/9

8:15 am-7:36 pm

2 stops19h 21m

$825

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 6/30

10:18 am-3:30 pm

2 stops21h 12m

Porto

Wed 7/9

9:15 pm-5:44 pm

2 stops28h 29m

$836

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 5/9

12:40 pm-11:45 am

1 stop15h 05m

Porto

Sat 5/24

1:30 pm-11:40 am

1 stop30h 10m

$906

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 5/13

3:40 pm-11:25 am

2 stops35h 45m

Porto

Fri 5/23

7:20 pm-9:15 pm

2 stops33h 55m

$929

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 5/28

3:05 pm-8:25 am

1 stop33h 20m

Porto

Wed 6/11

4:20 pm-11:22 pm

2 stops39h 02m

$1,105

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 8/16

8:40 pm-8:30 pm

1 stop15h 50m

Porto

Tue 9/30

8:40 pm-6:30 pm

1 stop29h 50m

$1,962

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 19 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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Porto flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 39 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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Porto (average of $523). Flying from Phoenix Sky Harbor Intl Airport to Porto in June is currently the most expensive (average of $1,084). 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.

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

It’s typically best to fly out from Phoenix Sky Harbor Intl Airport to Porto in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Porto by month

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.

Temperature in Porto by month

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).

Reviews of airlines servicing Porto

Read through reviews of airlines operating flights from Phoenix to Porto, such as Delta, KLM and Air Transat. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,891 reviews

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,319 reviews

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat

7.8

Good

381 reviews

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,569 reviews

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,423 reviews

Delta

8.0

Very good

7,891 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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. 8 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.
What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Porto round-trip?
Flying on KLM is currently your cheapest option to Porto, with prices starting at $824. Additional round-trip tickets that might be worth considering are offered by Air Transat and Scandinavian Airlines, with the lowest prices starting at $906 and $927, respectively. Users have found that KLM is 6% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Porto one-way?
For one-way options, check prices for Air Transat. According to our data, you can fly for as low as $538. Users have also found prices from $802 and $804 on Air Canada and KLM, respectively.
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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Porto (average of $523). Flying from Phoenix Sky Harbor Intl Airport to Porto in June is currently the most expensive (average of $1,084). 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

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Other flights to Porto

Top 8 airlines flying from Sky Harbor Intl to Porto

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest$483	Average$652	FlexibilityNo cancel fee	On-time77%
Air Canada	Cheapest$568	Average$750	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$573	Average$674	FlexibilityNo cancel fee	On-time71%
KLM	Cheapest$579	Average$892	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$582	Average$1,116	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$590	Average$888	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$677	Average$826	FlexibilityNo cancel fee	On-time70%
Air Transat	Cheapest$797	Average$807	FlexibilityNo cancel fee	On-time50%

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$397+ 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 5/4. 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

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Porto are usually found in March or November, booked 39 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

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 March 26, 2025.

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 March 26, 2025.

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 March.

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?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Porto. Price data was last updated on March 21, 2025.

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

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

Find hourly flight availability from Sky Harbor Intl to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 26, 2025.

Rainfall in Porto by month

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Temperature in Porto by month

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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 March 26, 2025.

Read through reviews of airlines operating flights from Phoenix to Porto, such as Delta, KLM and Air Transat. Users have also rated airlines 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?

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

What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Porto one-way?

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?

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Alternative routes for Sky Harbor Intl to Porto

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Top 8 airlines flying from Sky Harbor Intl to Porto

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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 March 26, 2025.