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 55% 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?

Lufthansa, KLM, and United Airlines 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 November 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.

$273 Cheap Flights from Arizona to Porto in 2025/26

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Find the cheapest flights from Arizona to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:51 am - 11:25 pmPHX-OPO

27h 34m2 stops

12:00 pm - 11:24 pmOPO-PHX

19h 24m2 stops

$638Lufthansa

Find Deal

Mon, Apr 20 - Thu, Apr 30

1:38 pm - 11:25 pmPHX-OPO

25h 47m2 stops

11:05 am - 11:55 pmOPO-PHX

20h 50m2 stops

$640Lufthansa

Find Deal

Wed, Apr 15 - Wed, Apr 29

10:23 am - 9:45 amPHX-OPO

15h 22m1 stop

6:00 am - 10:15 pmOPO-PHX

24h 15m2 stops

$645United Airlines

Find Deal

Wed, Apr 15 - Wed, Apr 29

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

5:00 am - 8:37 pmOPO-PHX

23h 37m2 stops

$647Delta

Find Deal

Thu, Apr 9 - Fri, Apr 17

7:00 am - 9:45 amPHX-OPO

18h 45m2 stops

6:00 am - 9:40 pmOPO-PHX

23h 40m2 stops

$649United Airlines

Find Deal

Thu, Apr 9 - Fri, Apr 17

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

4:20 pm - 12:50 pmOPO-PHX

28h 30m1 stop

$657KLM

Find Deal

Wed, Apr 15 - Wed, Apr 29

11:55 pm - 11:40 amPHX-OPO

28h 45m2 stops

7:25 pm - 9:44 pmOPO-PHX

33h 19m2 stops

$658Multiple Airlines

Find Deal

Sat, Mar 7 - Sun, Mar 15

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

5:00 am - 8:37 pmOPO-PHX

23h 37m2 stops

$750Delta

Find Deal

Mon, Apr 20 - Thu, Apr 30

3:05 pm - 3:30 pmPHX-OPO

16h 25m1 stop

4:20 pm - 12:50 pmOPO-PHX

28h 30m1 stop

$760KLM

Find Deal

Mon, Apr 20 - Thu, Apr 30

8:00 am - 8:50 pmPHX-OPO

28h 50m2 stops

10:00 pm - 9:17 pmOPO-PHX

31h 17m3 stops

$819Multiple Airlines

Find Deal

Wed, Apr 15 - Wed, Apr 29

Lufthansa flights from Arizona to Porto

Our best Lufthansa deals on Arizona to Porto flight tickets

Lufthansa

Apr 20

PHX11:51 amPhoenix Sky Harbor Intl

27h 34m

2 stops

OPO11:25 pmPorto

Apr 30

OPO12:00 pmPorto

19h 24m

2 stops

PHX11:24 pmPhoenix Sky Harbor Intl

$638

Find similar

Lufthansa

Apr 15

PHX1:38 pmPhoenix Sky Harbor Intl

25h 47m

2 stops

OPO11:25 pmPorto

Apr 29

OPO11:05 amPorto

20h 50m

2 stops

PHX11:55 pmPhoenix Sky Harbor Intl

$640

Find similar

Lufthansa

Mar 27

PHX6:30 amPhoenix Sky Harbor Intl

20h 00m

1 stop

OPO9:30 amPorto

Mar 31

OPO6:00 amPorto

20h 37m

2 stops

PHX6:37 pmPhoenix Sky Harbor Intl

$702

Find similar

United Airlines flights from Arizona to Porto

Our best United Airlines deals on Arizona to Porto flight tickets

United Airlines

Apr 15

PHX10:23 amPhoenix Sky Harbor Intl

15h 22m

1 stop

OPO9:45 amPorto

Apr 29

OPO6:00 amPorto

24h 15m

2 stops

PHX10:15 pmPhoenix Sky Harbor Intl

$645

Find similar

United Airlines

Apr 9

PHX7:00 amPhoenix Sky Harbor Intl

18h 45m

2 stops

OPO9:45 amPorto

Apr 17

OPO6:00 amPorto

23h 40m

2 stops

PHX9:40 pmPhoenix Sky Harbor Intl

$649

Find similar

United Airlines

Mar 7

PHX6:30 pmPhoenix Sky Harbor Intl

32h 00m

2 stops

OPO9:30 amPorto

Mar 15

OPO6:00 amPorto

34h 17m

2 stops

PHX9:17 amPhoenix Sky Harbor Intl

$650

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

11:51 am-11:25 pm

2 stops27h 34m

Porto

Thu 4/30

12:00 pm-11:24 pm

2 stops19h 24m

$638

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 4/15

1:38 pm-11:25 pm

2 stops25h 47m

Porto

Wed 4/29

11:05 am-11:55 pm

2 stops20h 50m

$640

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 4/15

10:23 am-9:45 am

1 stop15h 22m

Porto

Wed 4/29

6:00 am-10:15 pm

2 stops24h 15m

$645

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 4/9

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Fri 4/17

5:00 am-8:37 pm

2 stops23h 37m

$647

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 4/9

7:00 am-9:45 am

2 stops18h 45m

Porto

Fri 4/17

6:00 am-9:40 pm

2 stops23h 40m

$649

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 4/15

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Wed 4/29

4:20 pm-12:50 pm

1 stop28h 30m

$657

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

11:55 pm-11:40 am

2 stops28h 45m

Porto

Sun 3/15

7:25 pm-9:44 pm

2 stops33h 19m

$658

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Thu 4/30

5:00 am-8:37 pm

2 stops23h 37m

$750

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

3:05 pm-3:30 pm

1 stop16h 25m

Porto

Thu 4/30

4:20 pm-12:50 pm

1 stop28h 30m

$760

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 4/15

8:00 am-8:50 pm

2 stops28h 50m

Porto

Wed 4/29

10:00 pm-9:17 pm

3 stops31h 17m

$819

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $590. 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 $604.

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 $875 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 11% 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 November 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
Air Canada	PriceFrom $568	Free Cancellation	Rating 7.1 10,429 reviews	Search Air Canada flights
United Airlines	PriceFrom $585	Free Cancellation	Rating 7.4 9,012 reviews	Search United Airlines flights
American Airlines	PriceFrom $592	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
British Airways	PriceFrom $600	Free Cancellation	Rating 6.7 7,508 reviews	Search British Airways flights
Delta	PriceFrom $639	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Air Transat	PriceFrom $797	Free Cancellation	Rating 7.8 470 reviews	Search Air Transat flights

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Aveiro

Matosinhos

Braga

Lamego

Guimarães

Esposende

Chaves

Espinho

Viseu

Ponte de Lima

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Pinhao

Curia

Penafiel

Mesao Frio

Mira

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.