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Cheap flights from Phoenix to Porto from $534

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to Porto departing on 6/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Phoenix to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 9:30 am
PHX
-
OPO
20h 30m
2 stops
United Airlines Logo
6:00 am - 8:55 pm
OPO
-
PHX
21h 55m
2 stops
$768United Airlines
Tue, Oct 27 - Sun, Nov 1
KLM Logo
1:00 pm - 9:05 am
PHX
-
OPO
13h 05m
1 stop
KLM Logo
5:00 am - 4:57 pm
OPO
-
PHX
18h 57m
2 stops
$769KLM
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
10:59 pm - 9:30 am
PHX
-
OPO
27h 31m
1 stop
United Airlines Logo
6:00 am - 8:55 pm
OPO
-
PHX
21h 55m
2 stops
$773United Airlines
Tue, Oct 27 - Sun, Nov 1
Delta Logo
6:00 am - 10:25 am
PHX
-
OPO
20h 25m
1 stop
Delta Logo
5:00 am - 10:22 pm
OPO
-
PHX
24h 22m
2 stops
$775Delta
Sun, Oct 18 - Thu, Oct 29
KLM Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
KLM Logo
11:00 am - 8:34 pm
OPO
-
PHX
16h 34m
1 stop
$777KLM
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
7:00 pm - 7:00 am
PHX
-
OPO
28h 00m
2 stops
United Airlines Logo
6:00 am - 12:04 am
OPO
-
PHX
25h 04m
3 stops
$778United Airlines
Sun, Oct 18 - Thu, Oct 29
United Airlines Logo
8:50 am - 9:30 am
PHX
-
OPO
17h 40m
2 stops
United Airlines Logo
6:00 am - 9:47 am
OPO
-
PHX
34h 47m
2 stops
$779United Airlines
Tue, Oct 27 - Sun, Nov 1
United Airlines Logo
10:59 pm - 9:30 am
PHX
-
OPO
27h 31m
1 stop
United Airlines Logo
6:00 am - 9:47 am
OPO
-
PHX
34h 47m
2 stops
$780United Airlines
Tue, Oct 27 - Sun, Nov 1
KLM Logo
6:00 am - 10:25 am
PHX
-
OPO
20h 25m
1 stop
KLM Logo
10:00 am - 10:59 pm
OPO
-
PHX
19h 59m
1 stop
$783KLM
Sun, Oct 18 - Thu, Oct 29
United Airlines Logo
6:00 am - 9:30 am
PHX
-
OPO
20h 30m
2 stops
United Airlines Logo
6:00 am - 8:55 pm
OPO
-
PHX
21h 55m
2 stops
$798United Airlines
Tue, Oct 27 - Sun, Nov 1

Delta flights from Phoenix to Porto

Our best Delta deals on Phoenix to Porto flight tickets
Delta
Oct 18
PHX6:00 amPhoenix Sky Harbor Intl
20h 25m
1 stop
OPO10:25 amPorto
Oct 29
OPO5:00 amPorto
24h 22m
2 stops
PHX10:22 pmPhoenix Sky Harbor Intl
$775
Delta
Oct 4
PHX3:25 pmPhoenix Sky Harbor Intl
16h 05m
1 stop
OPO3:30 pmPorto
Oct 16
OPO5:00 amPorto
22h 34m
2 stops
PHX7:34 pmPhoenix Sky Harbor Intl
$832
Delta
Oct 4
PHX6:00 amPhoenix Sky Harbor Intl
20h 25m
2 stops
OPO10:25 amPorto
Oct 16
OPO5:00 amPorto
22h 34m
2 stops
PHX7:34 pmPhoenix Sky Harbor Intl
$836

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Oct 27
PHX6:00 amPhoenix Sky Harbor Intl
20h 30m
2 stops
OPO9:30 amPorto
Nov 1
OPO6:00 amPorto
21h 55m
2 stops
PHX8:55 pmPhoenix Sky Harbor Intl
$768
United Airlines
Oct 27
PHX10:59 pmPhoenix Sky Harbor Intl
27h 31m
1 stop
OPO9:30 amPorto
Nov 1
OPO6:00 amPorto
21h 55m
2 stops
PHX8:55 pmPhoenix Sky Harbor Intl
$773
United Airlines
Oct 18
PHX7:00 pmPhoenix Sky Harbor Intl
28h 00m
2 stops
OPO7:00 amPorto
Oct 29
OPO6:00 amPorto
25h 04m
3 stops
PHX12:04 amPhoenix Sky Harbor Intl
$778

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 8, 2026.
Use the filters below to find and compare flights from Phoenix to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

6:00 am-9:30 am

2 stops20h 30m

Porto

Sun 11/1

6:00 am-8:55 pm

2 stops21h 55m

$768
Quickest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/1

1:00 pm-9:05 am

1 stop13h 05m

Porto

Sat 11/7

5:00 am-4:57 pm

2 stops18h 57m

$769

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

10:59 pm-9:30 am

1 stop27h 31m

Porto

Sun 11/1

6:00 am-8:55 pm

2 stops21h 55m

$773

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 10/18

6:00 am-10:25 am

1 stop20h 25m

Porto

Thu 10/29

5:00 am-10:22 pm

2 stops24h 22m

$775

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/1

7:00 am-9:05 am

1 stop19h 05m

Porto

Sat 11/7

11:00 am-8:34 pm

1 stop16h 34m

$777

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 10/18

7:00 pm-7:00 am

2 stops28h 00m

Porto

Thu 10/29

6:00 am-12:04 am

3 stops25h 04m

$778

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

8:50 am-9:30 am

2 stops17h 40m

Porto

Sun 11/1

6:00 am-9:47 am

2 stops34h 47m

$779

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

10:59 pm-9:30 am

1 stop27h 31m

Porto

Sun 11/1

6:00 am-9:47 am

2 stops34h 47m

$780

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 10/18

6:00 am-10:25 am

1 stop20h 25m

Porto

Thu 10/29

10:00 am-10:59 pm

1 stop19h 59m

$783

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

6:00 am-9:30 am

2 stops20h 30m

Porto

Sun 11/1

6:00 am-8:55 pm

2 stops21h 55m

$798

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Phoenix 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

What is the typical price of a round-trip flight between Phoenix and Porto?

What is the cheapest month to fly to Porto?

The month of April is, on average, the cheapest month to fly to Porto from Phoenix, with most prices found around $460. If you aren’t able to travel during the month of April, then book flights to Porto from Phoenix during January instead. Flights to Porto in January, while not as cheap as those in April, still average around $461.

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

You are more likely to see cheaper flights to Porto from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $836 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Phoenix for as low as $643 on momondo.

Cheap Phoenix to Porto flight deals and tips

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

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from Phoenix to Porto takes 15h 05m
There are no direct flights from Phoenix to Porto. There are no popular flight routes from Phoenix to Porto.
Search flight deals

Frequently asked questions about flying from Phoenix to Porto

  • How far is Phoenix to Porto by plane?

    A flight from Phoenix to Porto will travel around 5350.0 mi. A reasonable flight in good conditions will take 15h 05m.

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

    Prices for flights from Phoenix to Porto Airport are updated daily.

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

  • How old do you have to be to fly from Phoenix 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 Phoenix to Porto Airport.

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

    The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Phoenix to Porto

Compare and see reviews for airlines that fly from Phoenix to Porto with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $460Free CancellationRating
7.1
11,666 reviews
Search American Airlines flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
DeltaPriceFrom $646Free CancellationRating
7.9
8,456 reviews
Search Delta flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Phoenix to Porto for you.

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

Yes. momondo allows you to filter the results for Phoenix to Porto flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Phoenix and Porto by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Phoenix to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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