What airlines fly to Porto?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Porto from Arizona according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 7 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Arizona to Porto Airport?

Prices for flights from Arizona to Porto Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Arizona to Porto Airport?

As of September 2025, there are 7 operators available to choose from for flights from Arizona to Porto Airport.

How old do you have to be to fly from Arizona to Porto Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Arizona to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$309 Cheap Flights from Arizona to Porto in 2025

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Find the cheapest flights from Arizona to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

12:45 am - 3:15 pmPHX-OPO

31h 30m2 stops

12:30 pm - 7:22 pmOPO-PHX

37h 52m2 stops

$588United Airlines

Find Deal

Sat, Dec 27 - Mon, Jan 12

12:00 pm - 9:30 amPHX-OPO

14h 30m1 stop

6:00 am - 7:37 pmOPO-PHX

20h 37m2 stops

$590United Airlines

Find Deal

Thu, Feb 26 - Wed, Mar 4

3:50 pm - 10:15 amPHX-OPO

35h 25m1 stop

11:20 am - 10:52 pmOPO-PHX

18h 32m2 stops

$598

Find Deal

Sun, Dec 28 - Fri, Jan 30

3:50 pm - 10:15 amPHX-OPO

35h 25m1 stop

11:20 am - 10:52 pmOPO-PHX

18h 32m2 stops

$599

Find Deal

Sun, Dec 28 - Fri, Jan 30

11:59 pm - 10:30 amPHX-OPO

27h 31m2 stops

11:10 am - 12:16 amOPO-PHX

20h 06m2 stops

$602Delta

Find Deal

Mon, Dec 29 - Tue, Jan 13

11:59 pm - 10:30 amPHX-OPO

27h 31m2 stops

6:00 am - 11:33 amOPO-PHX

36h 33m2 stops

$605Delta

Find Deal

Mon, Dec 29 - Wed, Jan 14

3:50 pm - 10:15 amPHX-OPO

35h 25m1 stop

4:10 pm - 5:22 pmOPO-PHX

32h 12m2 stops

$607KLM

Find Deal

Sun, Dec 28 - Mon, Jan 12

9:35 am - 4:00 pmPHX-OPO

23h 25m2 stops

8:20 am - 9:49 pmOPO-PHX

20h 29m2 stops

$625British Airways

Find Deal

Tue, Dec 30 - Fri, Jan 30

3:50 pm - 10:30 amPHX-OPO

35h 40m1 stop

4:10 pm - 4:46 pmOPO-PHX

31h 36m2 stops

$638KLM

Find Deal

Thu, Nov 27 - Mon, Dec 8

8:25 pm - 7:00 pmPHX-OPO

15h 35m1 stop

6:30 pm - 6:15 pmOPO-PHX

30h 45m1 stop

$644British Airways

Find Deal

Fri, Dec 26 - Wed, Jan 14

United Airlines flights from Arizona to Porto

Our best United Airlines deals on Arizona to Porto flight tickets

United Airlines

Dec 27

PHX12:45 amPhoenix Sky Harbor Intl

31h 30m

2 stops

OPO3:15 pmPorto

Jan 12

OPO12:30 pmPorto

37h 52m

2 stops

PHX7:22 pmPhoenix Sky Harbor Intl

$588

Find similar

United Airlines

Feb 26

PHX12:00 pmPhoenix Sky Harbor Intl

14h 30m

1 stop

OPO9:30 amPorto

Mar 4

OPO6:00 amPorto

20h 37m

2 stops

PHX7:37 pmPhoenix Sky Harbor Intl

$590

Find similar

United Airlines

Feb 26

PHX8:00 amPhoenix Sky Harbor Intl

18h 30m

2 stops

OPO9:30 amPorto

Mar 4

OPO6:00 amPorto

23h 44m

2 stops

PHX10:44 pmPhoenix Sky Harbor Intl

$594

Find similar

British Airways flights from Arizona to Porto

Our best British Airways deals on Arizona to Porto flight tickets

British Airways

Dec 30

PHX9:35 amPhoenix Sky Harbor Intl

23h 25m

2 stops

OPO4:00 pmPorto

Jan 30

OPO8:20 amPorto

20h 29m

2 stops

PHX9:49 pmPhoenix Sky Harbor Intl

$625

Find similar

British Airways

Dec 26

PHX8:25 pmPhoenix Sky Harbor Intl

15h 35m

1 stop

OPO7:00 pmPorto

Jan 14

OPO6:30 pmPorto

30h 45m

1 stop

PHX6:15 pmPhoenix Sky Harbor Intl

$644

Find similar

British Airways

Dec 26

PHX8:25 pmPhoenix Sky Harbor Intl

15h 35m

1 stop

OPO7:00 pmPorto

Jan 8

OPO4:55 pmPorto

32h 25m

1 stop

PHX6:20 pmPhoenix Sky Harbor Intl

$699

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/27

12:45 am-3:15 pm

2 stops31h 30m

Porto

Mon 1/12

12:30 pm-7:22 pm

2 stops37h 52m

$588

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

12:00 pm-9:30 am

1 stop14h 30m

Porto

Wed 3/4

6:00 am-7:37 pm

2 stops20h 37m

$590

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/28

3:50 pm-10:15 am

1 stop35h 25m

Porto

Fri 1/30

11:20 am-10:52 pm

2 stops18h 32m

$598

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/28

3:50 pm-10:15 am

1 stop35h 25m

Porto

Fri 1/30

11:20 am-10:52 pm

2 stops18h 32m

$599

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 12/29

11:59 pm-10:30 am

2 stops27h 31m

Porto

Tue 1/13

11:10 am-12:16 am

2 stops20h 06m

$602

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 12/29

11:59 pm-10:30 am

2 stops27h 31m

Porto

Wed 1/14

6:00 am-11:33 am

2 stops36h 33m

$605

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/28

3:50 pm-10:15 am

1 stop35h 25m

Porto

Mon 1/12

4:10 pm-5:22 pm

2 stops32h 12m

$607

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 12/30

9:35 am-4:00 pm

2 stops23h 25m

Porto

Fri 1/30

8:20 am-9:49 pm

2 stops20h 29m

$625

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 11/27

3:50 pm-10:30 am

1 stop35h 40m

Porto

Mon 12/8

4:10 pm-4:46 pm

2 stops31h 36m

$638

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 12/26

8:25 pm-7:00 pm

1 stop15h 35m

Porto

Wed 1/14

6:30 pm-6:15 pm

1 stop30h 45m

$644

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Arizona to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Arizona, with most prices found around $595. If you aren’t able to travel during the month of November, then book flights to Porto from Arizona during March instead. Flights to Porto in March, while not as cheap as those in November, still average around $627.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Wednesday when prices can be found for as low as $758. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,126. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the afternoon is the cheapest time of day to fly from Arizona to Porto when you can find flight prices for as low as $795. Flying to Porto in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $983 on average. Flights to Porto from Arizona in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Porto from Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $842 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Arizona for as low as $652 on momondo.

Can stopping save me money on Arizona to Porto flights?

You could potentially save up to 34% on your flight if you consider stops on a Arizona to Porto flight.

Cheap Arizona to Porto flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Arizona to Porto

Direct flights	None

There are no direct flights from Arizona to Porto. There are no popular flight routes from Arizona to Porto.

Search flight deals

When did momondo last update prices for flights from Arizona to Porto Airport?
Prices for flights from Arizona to Porto Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Arizona to Porto Airport?
As of September 2025, there are 7 operators available to choose from for flights from Arizona to Porto Airport.
How old do you have to be to fly from Arizona to Porto Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Arizona to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The travel and health documents required for your trip to Porto Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Arizona to Porto

Compare and see reviews for airlines that fly from Arizona to Porto with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $568	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
KLM	PriceFrom $579	Free Cancellation	Rating 7.8 1,383 reviews	Search KLM flights
United Airlines	PriceFrom $589	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Delta	PriceFrom $590	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
American Airlines	PriceFrom $592	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $600	Free Cancellation	Rating 6.7 7,345 reviews	Search British Airways flights
Air Transat	PriceFrom $797	Free Cancellation	Rating 7.7 435 reviews	Search Air Transat flights

Vila Nova de Gaia

Aveiro

Coimbra

Braga

Matosinhos

Caminha

Guimarães

Lamego

Esposende

Chaves

Espinho

Arcos de Valdevez

Viseu

Ponte de Lima

Pinhao

Santa Maria da Feira

Curia

Penafiel

Mesao Frio

Mira

Why use momondo?

Why should I use momondo to find a flight deal from Arizona to Porto?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Arizona to Porto. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Arizona to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from Arizona which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Arizona to Porto?

Once you have performed a search for Arizona to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Arizona to Porto right now. Can momondo alert me if prices change?

Price alerts on flights to Porto from Arizona are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.