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Cheap flights from Phoenix to Porto from $279

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 5/8. 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
6:30 am - 9:30 am
PHX
-
OPO
20h 00m
1 stop
United Airlines Logo
12:35 pm - 8:28 am
OPO
-
PHX
26h 53m
2 stops
$554United Airlines
Mon, Mar 2 - Wed, Mar 18
United Airlines Logo
11:40 pm - 9:30 am
PHX
-
OPO
26h 50m
2 stops
United Airlines Logo
6:00 am - 7:41 pm
OPO
-
PHX
20h 41m
2 stops
$563United Airlines
Sat, Mar 7 - Tue, Mar 17
United Airlines Logo
11:40 pm - 9:30 am
PHX
-
OPO
26h 50m
2 stops
United Airlines Logo
6:00 am - 7:41 pm
OPO
-
PHX
20h 41m
2 stops
$564United Airlines
Sat, Mar 7 - Tue, Mar 17
Delta Logo
6:10 am - 10:30 am
PHX
-
OPO
21h 20m
2 stops
Delta Logo
5:00 am - 4:40 pm
OPO
-
PHX
19h 40m
2 stops
$566Delta
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
3:42 pm - 7:55 am
PHX
-
OPO
32h 13m
2 stops
Multiple Airlines Logo
6:00 am - 7:02 pm
OPO
-
PHX
21h 02m
2 stops
$568Multiple Airlines
Wed, Apr 22 - Wed, May 6
United Airlines Logo
7:00 am - 9:45 am
PHX
-
OPO
18h 45m
2 stops
United Airlines Logo
6:00 am - 9:23 am
OPO
-
PHX
35h 23m
2 stops
$569United Airlines
Mon, Apr 20 - Thu, Apr 30
United Airlines Logo
6:30 am - 9:30 am
PHX
-
OPO
20h 00m
1 stop
United Airlines Logo
12:35 pm - 10:15 pm
OPO
-
PHX
16h 40m
1 stop
$598United Airlines
Mon, Mar 2 - Wed, Mar 18
Delta Logo
6:10 am - 10:30 am
PHX
-
OPO
21h 20m
2 stops
Delta Logo
6:15 am - 1:10 pm
OPO
-
PHX
14h 55m
1 stop
$600Delta
Tue, Mar 24 - Tue, Mar 31
Delta Logo
12:30 pm - 3:30 pm
PHX
-
OPO
19h 00m
2 stops
Delta Logo
5:00 am - 11:32 pm
OPO
-
PHX
26h 32m
2 stops
$621Delta
Sun, May 10 - Fri, May 15
Delta Logo
12:30 pm - 3:30 pm
PHX
-
OPO
19h 00m
2 stops
Delta Logo
5:00 am - 8:53 pm
OPO
-
PHX
23h 53m
2 stops
$632Delta
Sun, May 10 - Fri, May 15

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Mar 2
PHX8:30 amPhoenix Sky Harbor Intl
18h 00m
2 stops
OPO9:30 amPorto
Mar 18
OPO12:35 pmPorto
26h 53m
2 stops
PHX8:28 amPhoenix Sky Harbor Intl
$554
United Airlines
Mar 7
PHX11:40 pmPhoenix Sky Harbor Intl
26h 50m
2 stops
OPO9:30 amPorto
Mar 17
OPO6:00 amPorto
20h 41m
2 stops
PHX7:41 pmPhoenix Sky Harbor Intl
$563
United Airlines
Mar 7
PHX11:40 pmPhoenix Sky Harbor Intl
26h 50m
2 stops
OPO9:30 amPorto
Mar 17
OPO6:00 amPorto
20h 41m
2 stops
PHX7:41 pmPhoenix Sky Harbor Intl
$564

KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
Mar 27
PHX3:50 pmPhoenix Sky Harbor Intl
23h 10m
1 stop
OPO10:00 pmPorto
Mar 31
OPO5:00 amPorto
19h 40m
2 stops
PHX4:40 pmPhoenix Sky Harbor Intl
$834
KLM
May 10
PHX3:25 pmPhoenix Sky Harbor Intl
22h 35m
1 stop
OPO10:00 pmPorto
May 15
OPO5:55 amPorto
15h 15m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$861
KLM
May 10
PHX3:25 pmPhoenix Sky Harbor Intl
22h 35m
1 stop
OPO10:00 pmPorto
May 15
OPO5:55 amPorto
15h 15m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$862

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 February 4, 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

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 3/2

6:30 am-9:30 am

1 stop20h 00m

Porto

Wed 3/18

12:35 pm-8:28 am

2 stops26h 53m

$554

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

11:40 pm-9:30 am

2 stops26h 50m

Porto

Tue 3/17

6:00 am-7:41 pm

2 stops20h 41m

$563

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

11:40 pm-9:30 am

2 stops26h 50m

Porto

Tue 3/17

6:00 am-7:41 pm

2 stops20h 41m

$564

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 3/24

6:10 am-10:30 am

2 stops21h 20m

Porto

Tue 3/31

5:00 am-4:40 pm

2 stops19h 40m

$566

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 4/22

3:42 pm-7:55 am

2 stops32h 13m

Porto

Wed 5/6

6:00 am-7:02 pm

2 stops21h 02m

$568

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

7:00 am-9:45 am

2 stops18h 45m

Porto

Thu 4/30

6:00 am-9:23 am

2 stops35h 23m

$569

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 3/2

6:30 am-9:30 am

1 stop20h 00m

Porto

Wed 3/18

12:35 pm-10:15 pm

1 stop16h 40m

$598

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 3/24

6:10 am-10:30 am

2 stops21h 20m

Porto

Tue 3/31

6:15 am-1:10 pm

1 stop14h 55m

$600

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 5/10

12:30 pm-3:30 pm

2 stops19h 00m

Porto

Fri 5/15

5:00 am-11:32 pm

2 stops26h 32m

$621

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 5/10

12:30 pm-3:30 pm

2 stops19h 00m

Porto

Fri 5/15

5:00 am-8:53 pm

2 stops23h 53m

$632

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 $613.

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 $811 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 $692 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

16h 00m

Direct flights

None
The fastest flight from Phoenix to Porto takes 16h 00m
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 16h 00m.

  • 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
7.2
11,223 reviews
Search American Airlines flights
Air CanadaPriceFrom $568Free CancellationRating
7.1
10,688 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,716 reviews
Search British Airways flights
DeltaPriceFrom $623Free CancellationRating
7.9
8,146 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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
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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