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Cheap flights from Phoenix to Porto from $442

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 1/30. 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.
Delta Logo
12:08 pm - 6:10 pm
PHX
-
OPO
22h 02m2 stops
Delta Logo
5:00 am - 9:48 pm
OPO
-
PHX
24h 48m2 stops
$508Delta
Mon, Apr 20 - Thu, Apr 30
Delta Logo
6:20 am - 10:30 am
PHX
-
OPO
21h 10m2 stops
Delta Logo
5:00 am - 11:50 pm
OPO
-
PHX
25h 50m2 stops
$564Delta
Tue, Feb 10 - Tue, Feb 17
KLM Logo
7:30 am - 10:30 am
PHX
-
OPO
20h 00m2 stops
KLM Logo
11:25 am - 1:35 pm
OPO
-
PHX
33h 10m1 stop
$579KLM
Tue, Feb 10 - Tue, Feb 17
Lufthansa Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
Lufthansa Logo
6:00 am - 7:18 pm
OPO
-
PHX
20h 18m2 stops
$598Lufthansa
Thu, Feb 26 - Wed, Mar 4
KLM Logo
3:25 pm - 10:00 pm
PHX
-
OPO
22h 35m1 stop
KLM Logo
5:55 am - 1:10 pm
OPO
-
PHX
15h 15m1 stop
$608KLM
Sun, May 10 - Fri, May 15
Delta Logo
3:25 pm - 3:25 pm
PHX
-
OPO
16h 00m1 stop
Delta Logo
5:00 am - 8:37 pm
OPO
-
PHX
23h 37m2 stops
$610Delta
Sun, May 10 - Fri, May 15
KLM Logo
3:50 pm - 10:25 am
PHX
-
OPO
35h 35m1 stop
KLM Logo
5:00 am - 9:02 pm
OPO
-
PHX
23h 02m2 stops
$611KLM
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
6:00 am - 9:30 am
PHX
-
OPO
20h 30m2 stops
United Airlines Logo
6:00 am - 11:03 pm
OPO
-
PHX
24h 03m2 stops
$612United Airlines
Thu, Feb 26 - Wed, Mar 4
Delta Logo
6:15 am - 10:30 am
PHX
-
OPO
21h 15m2 stops
Delta Logo
5:00 am - 12:11 am
OPO
-
PHX
26h 11m2 stops
$614Delta
Fri, Jan 23 - Wed, Feb 4
United Airlines Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
United Airlines Logo
12:35 pm - 9:37 pm
OPO
-
PHX
16h 02m1 stop
$616United Airlines
Thu, Feb 26 - Wed, Mar 4

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Feb 26
PHX6:00 amPhoenix Sky Harbor Intl
20h 30m
2 stops
OPO9:30 amPorto
Mar 4
OPO6:00 amPorto
24h 03m
2 stops
PHX11:03 pmPhoenix Sky Harbor Intl
$612
Find similar
United Airlines
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 4
OPO12:35 pmPorto
16h 02m
1 stop
PHX9:37 pmPhoenix Sky Harbor Intl
$616
Find similar
United Airlines
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 2
OPO12:30 pmPorto
39h 21m
2 stops
PHX8:51 pmPhoenix Sky Harbor Intl
$628
Find similar

SWISS flights from Phoenix to Porto

Our best SWISS deals on Phoenix to Porto flight tickets
SWISS
Jan 23
PHX10:22 amPhoenix Sky Harbor Intl
17h 48m
2 stops
OPO11:10 amPorto
Feb 2
OPO12:05 pmPorto
41h 54m
2 stops
PHX10:59 pmPhoenix Sky Harbor Intl
$619
Find similar
SWISS
Jan 23
PHX10:22 amPhoenix Sky Harbor Intl
17h 48m
2 stops
OPO11:10 amPorto
Feb 2
OPO12:05 pmPorto
41h 54m
2 stops
PHX10:59 pmPhoenix Sky Harbor Intl
$709
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 28, 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

Mon 4/20

12:08 pm-6:10 pm

2 stops22h 02m

Porto

Thu 4/30

5:00 am-9:48 pm

2 stops24h 48m

$508

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 2/10

6:20 am-10:30 am

2 stops21h 10m

Porto

Tue 2/17

5:00 am-11:50 pm

2 stops25h 50m

$564

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 2/10

7:30 am-10:30 am

2 stops20h 00m

Porto

Tue 2/17

11:25 am-1:35 pm

1 stop33h 10m

$579

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

6:00 am-7:18 pm

2 stops20h 18m

$598

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 5/10

3:25 pm-10:00 pm

1 stop22h 35m

Porto

Fri 5/15

5:55 am-1:10 pm

1 stop15h 15m

$608

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 5/10

3:25 pm-3:25 pm

1 stop16h 00m

Porto

Fri 5/15

5:00 am-8:37 pm

2 stops23h 37m

$610

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 2/4

3:50 pm-10:25 am

1 stop35h 35m

Porto

Sun 2/8

5:00 am-9:02 pm

2 stops23h 02m

$611

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-9:30 am

2 stops20h 30m

Porto

Wed 3/4

6:00 am-11:03 pm

2 stops24h 03m

$612

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-12:11 am

2 stops26h 11m

$614

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

12:35 pm-9:37 pm

1 stop16h 02m

$616

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 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 $814 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

14h 55m

Direct flights

None
The fastest flight from Phoenix to Porto takes 14h 55m
There are no direct flights from Phoenix to Porto. There are no popular flight routes from Phoenix to Porto.
Search flight deals

  • 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 14h 55m.

  • 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
10,562 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,114 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,071 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,616 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,016 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.7
485 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
Arcos de Valdevez
Pinhao
Ponte de Lima
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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