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Cheap flights from Phoenix to Porto from $354

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 1/15. 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.
Lufthansa Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
Lufthansa Logo
4:15 pm - 6:59 pm
OPO
-
PHX
33h 44m2 stops
$646Lufthansa
Thu, Feb 26 - Wed, Mar 4
United Airlines Logo
6:05 am - 9:45 am
PHX
-
OPO
19h 40m2 stops
United Airlines Logo
6:00 am - 9:23 pm
OPO
-
PHX
23h 23m3 stops
$652United Airlines
Mon, Apr 20 - Thu, Apr 30
American Airlines Logo
7:30 am - 7:40 am
PHX
-
OPO
17h 10m2 stops
American Airlines Logo
8:40 pm - 8:55 am
OPO
-
PHX
19h 15m2 stops
$659American Airlines
Thu, Feb 26 - Wed, Mar 4
Air France Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m1 stop
Air France Logo
6:15 am - 1:10 pm
OPO
-
PHX
14h 55m1 stop
$664Air France
Fri, Mar 27 - Tue, Mar 31
Multiple Airlines Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m1 stop
Multiple Airlines Logo
5:00 am - 4:36 pm
OPO
-
PHX
19h 36m2 stops
$668Multiple Airlines
Fri, Mar 27 - Tue, Mar 31
Lufthansa Logo
10:35 am - 11:25 pm
PHX
-
OPO
28h 50m2 stops
Lufthansa Logo
6:00 am - 5:58 pm
OPO
-
PHX
19h 58m2 stops
$672Lufthansa
Fri, May 1 - Sat, May 9
United Airlines Logo
7:36 pm - 3:15 pm
PHX
-
OPO
36h 39m2 stops
United Airlines Logo
12:30 pm - 6:19 pm
OPO
-
PHX
36h 49m2 stops
$681United Airlines
Sat, Mar 7 - Sun, Mar 15
KLM Logo
3:50 pm - 10:30 am
PHX
-
OPO
35h 40m1 stop
KLM Logo
5:00 am - 5:35 pm
OPO
-
PHX
19h 35m2 stops
$689KLM
Fri, Jan 23 - Wed, Feb 4
United Airlines Logo
12:40 am - 9:30 am
PHX
-
OPO
25h 50m2 stops
United Airlines Logo
6:00 am - 10:58 am
OPO
-
PHX
35h 58m2 stops
$690United Airlines
Fri, Mar 6 - Sun, Mar 15
Delta Logo
6:15 am - 10:30 am
PHX
-
OPO
21h 15m2 stops
Delta Logo
5:00 am - 10:40 pm
OPO
-
PHX
24h 40m2 stops
$692Delta
Fri, Jan 23 - Wed, Feb 4

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Apr 20
PHX6:05 amPhoenix Sky Harbor Intl
19h 40m
2 stops
OPO9:45 amPorto
Apr 30
OPO6:00 amPorto
23h 23m
3 stops
PHX9:23 pmPhoenix Sky Harbor Intl
$652
Find similar
United Airlines
Mar 7
PHX7:36 pmPhoenix Sky Harbor Intl
36h 39m
2 stops
OPO3:15 pmPorto
Mar 15
OPO12:30 pmPorto
36h 49m
2 stops
PHX6:19 pmPhoenix Sky Harbor Intl
$681
Find similar
United Airlines
Mar 6
PHX12:40 amPhoenix Sky Harbor Intl
25h 50m
2 stops
OPO9:30 amPorto
Mar 15
OPO6:00 amPorto
35h 58m
2 stops
PHX10:58 amPhoenix Sky Harbor Intl
$690
Find similar

Lufthansa flights from Phoenix to Porto

Our best Lufthansa deals on Phoenix to Porto flight tickets
Lufthansa
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 4
OPO4:15 pmPorto
33h 44m
2 stops
PHX6:59 pmPhoenix Sky Harbor Intl
$646
Find similar
Lufthansa
May 1
PHX10:35 amPhoenix Sky Harbor Intl
28h 50m
2 stops
OPO11:25 pmPorto
May 9
OPO6:00 amPorto
19h 58m
2 stops
PHX5:58 pmPhoenix Sky Harbor Intl
$672
Find similar
Lufthansa
Feb 26
PHX6:30 amPhoenix Sky Harbor Intl
20h 00m
1 stop
OPO9:30 amPorto
Mar 4
OPO12:35 pmPorto
16h 02m
1 stop
PHX9:37 pmPhoenix Sky Harbor Intl
$740
Find similar

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 December 18, 2025.
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

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

4:15 pm-6:59 pm

2 stops33h 44m

$646

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

6:05 am-9:45 am

2 stops19h 40m

Porto

Thu 4/30

6:00 am-9:23 pm

3 stops23h 23m

$652

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

7:30 am-7:40 am

2 stops17h 10m

Porto

Wed 3/4

8:40 pm-8:55 am

2 stops19h 15m

$659

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 3/27

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Tue 3/31

6:15 am-1:10 pm

1 stop14h 55m

$664

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 3/27

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Tue 3/31

5:00 am-4:36 pm

2 stops19h 36m

$668

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 5/1

10:35 am-11:25 pm

2 stops28h 50m

Porto

Sat 5/9

6:00 am-5:58 pm

2 stops19h 58m

$672

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

7:36 pm-3:15 pm

2 stops36h 39m

Porto

Sun 3/15

12:30 pm-6:19 pm

2 stops36h 49m

$681

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 1/23

3:50 pm-10:30 am

1 stop35h 40m

Porto

Wed 2/4

5:00 am-5:35 pm

2 stops19h 35m

$689

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 3/6

12:40 am-9:30 am

2 stops25h 50m

Porto

Sun 3/15

6:00 am-10:58 am

2 stops35h 58m

$690

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 1/23

6:15 am-10:30 am

2 stops21h 15m

Porto

Wed 2/4

5:00 am-10:40 pm

2 stops24h 40m

$692

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 cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Phoenix, with most prices found around $590. If you aren’t able to travel during the month of November, then book flights to Porto from Phoenix 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 Phoenix 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 Phoenix 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 Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $815 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 $652 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.
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  • 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
Air CanadaPriceFrom $568Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,009 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.8
483 reviews
Search Air Transat 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
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Ponte de Lima
Arcos de Valdevez
Pinhao
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.

An easier way to manage your Porto trip

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