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 48% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 6 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Arizona to Porto?

United Airlines, Air Canada, and Delta are the most popular carriers operating from Arizona to Porto

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 July 2025, there are 6 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.

$329 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

2:12 pm - 9:30 amPHX-OPO

36h 18m2 stops

6:00 am - 3:58 pmOPO-PHX

40h 58m2 stops

$675United Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 8

2:12 pm - 9:30 amPHX-OPO

36h 18m2 stops

12:40 pm - 8:08 pmOPO-PHX

38h 28m2 stops

$676United Airlines

Find Deal

Sat, Nov 1 - Sat, Nov 8

10:45 am - 9:45 amPHX-OPO

15h 00m2 stops

6:00 am - 9:41 pmOPO-PHX

22h 41m2 stops

$694United Airlines

Find Deal

Thu, Oct 23 - Sat, Nov 1

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

5:00 am - 3:27 pmOPO-PHX

18h 27m2 stops

$703KLM

Find Deal

Thu, Oct 2 - Sun, Oct 12

12:16 pm - 3:30 pmPHX-OPO

19h 14m2 stops

5:00 am - 3:27 pmOPO-PHX

18h 27m2 stops

$708Delta

Find Deal

Thu, Oct 2 - Sun, Oct 12

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

6:00 am - 11:00 pmOPO-PHX

24h 00m2 stops

$736Delta

Find Deal

Thu, Oct 23 - Sat, Nov 1

7:40 am - 9:20 amPHX-OPO

17h 40m1 stop

6:00 am - 7:15 pmOPO-PHX

21h 15m2 stops

$741

Find Deal

Wed, Aug 20 - Wed, Aug 27

7:40 am - 3:00 pmPHX-OPO

23h 20m2 stops

7:20 am - 7:19 pmOPO-PHX

19h 59m2 stops

$756

Find Deal

Tue, Sep 16 - Fri, Sep 26

12:40 pm - 11:45 amPHX-OPO

15h 05m1 stop

8:50 am - 1:00 pmOPO-PHX

35h 10m1 stop

$851Air Transat

Find Deal

Mon, Sep 1 - Sat, Dec 6

9:26 am - 10:40 amPHX-OPO

17h 14m2 stops

7:05 pm - 12:50 pmOPO-PHX

25h 45m1 stop

$1,300KLM

Find Deal

Sat, Aug 2 - Sat, Aug 9

United Airlines flights from Arizona to Porto

Our best United Airlines deals on Arizona to Porto flight tickets

United Airlines

Nov 1

PHX2:12 pmPhoenix Sky Harbor Intl

36h 18m

2 stops

OPO9:30 amPorto

Nov 8

OPO6:00 amPorto

40h 58m

2 stops

PHX3:58 pmPhoenix Sky Harbor Intl

$675

Find similar

United Airlines

Nov 1

PHX2:12 pmPhoenix Sky Harbor Intl

36h 18m

2 stops

OPO9:30 amPorto

Nov 8

OPO12:40 pmPorto

38h 28m

2 stops

PHX8:08 pmPhoenix Sky Harbor Intl

$676

Find similar

United Airlines

Oct 23

PHX10:45 amPhoenix Sky Harbor Intl

15h 00m

2 stops

OPO9:45 amPorto

Nov 1

OPO6:00 amPorto

22h 41m

2 stops

PHX9:41 pmPhoenix Sky Harbor Intl

$694

Find similar

KLM flights from Arizona to Porto

Our best KLM deals on Arizona to Porto flight tickets

KLM

Oct 2

PHX3:05 pmPhoenix Sky Harbor Intl

16h 25m

1 stop

OPO3:30 pmPorto

Oct 12

OPO5:00 amPorto

18h 27m

2 stops

PHX3:27 pmPhoenix Sky Harbor Intl

$703

Find similar

KLM

Aug 2

PHX9:26 amPhoenix Sky Harbor Intl

17h 14m

2 stops

OPO10:40 amPorto

Aug 9

OPO7:05 pmPorto

25h 45m

1 stop

PHX12:50 pmPhoenix Sky Harbor Intl

$1,300

Find similar

KLM

Aug 2

PHX2:52 pmPhoenix Sky Harbor Intl

16h 43m

2 stops

OPO3:35 pmPorto

Aug 9

OPO6:05 amPorto

19h 33m

2 stops

PHX5:38 pmPhoenix Sky Harbor Intl

$1,312

Find similar

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 $605. 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 $613.

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 $856 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 7% 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

Best Price Found	$329
Fastest flight time	13h 40m
Direct flights	None
Airports in Porto	1 airport

The best one-way flight to Porto from Arizona in the past 72 hours is $329. The best round-trip flight deal from Arizona to Porto found on momondo in the last 72 hours is $675.

The fastest flight from Arizona to Porto takes 13h 40m

There are no direct flights from Arizona to Porto. Popular non-direct route for this connection is Phoenix Sky Harbor Intl Airport - Porto Airport.

There is 1 airport near Porto: Porto (OPO)

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 July 2025, there are 6 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
KLM	PriceFrom $579	Free Cancellation	Rating 7.8 1,374 reviews	Search KLM flights
United Airlines	PriceFrom $585	Free Cancellation	Rating 7.4 8,864 reviews	Search United Airlines flights
Delta	PriceFrom $586	Free Cancellation	Rating 8.0 7,958 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 6.6 7,151 reviews	Search British Airways flights
Air Transat	PriceFrom $797	Free Cancellation	Rating 7.7 416 reviews	Search Air Transat flights

Aveiro

Coimbra

Vila Nova de Gaia

Matosinhos

Caminha

Braga

Guimarães

Chaves

Esposende

Arcos de Valdevez

Lamego

Espinho

Viseu

Ponte de Lima

Santa Maria da Feira

Curia

Mesao Frio

Penafiel

Pinhao

Baiao

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.