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Cheap flights from Phoenix to Porto from $388

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 9/20. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Phoenix to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
KLM Logo
5:40 am - 1:35 pm
OPO
-
PHX
14h 55m
1 stop
$716KLM
Wed, Dec 2 - Wed, Dec 9
Delta Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m
1 stop
Delta Logo
5:00 am - 5:15 pm
OPO
-
PHX
19h 15m
2 stops
$718Delta
Wed, Nov 4 - Fri, Nov 20
Delta Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
Delta Logo
5:00 am - 5:15 pm
OPO
-
PHX
19h 15m
2 stops
$719Delta
Sun, Nov 1 - Thu, Nov 19
Delta Logo
1:00 pm - 10:00 pm
PHX
-
OPO
26h 00m
2 stops
Delta Logo
5:00 am - 12:42 am
OPO
-
PHX
26h 42m
2 stops
$723Delta
Mon, Nov 16 - Tue, Nov 24
Delta Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Delta Logo
5:00 am - 12:14 am
OPO
-
PHX
26h 14m
2 stops
$724Delta
Sat, Nov 14 - Wed, Nov 18
Delta Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Delta Logo
5:00 am - 8:44 pm
OPO
-
PHX
22h 44m
2 stops
$725Delta
Sat, Oct 31 - Fri, Nov 27
Delta Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m
1 stop
Delta Logo
11:00 am - 11:59 pm
OPO
-
PHX
19h 59m
1 stop
$726Delta
Sun, Nov 15 - Thu, Dec 3
Delta Logo
1:00 pm - 9:05 am
PHX
-
OPO
13h 05m
1 stop
Delta Logo
11:00 am - 11:59 pm
OPO
-
PHX
19h 59m
1 stop
$727Delta
Sun, Nov 1 - Thu, Dec 3
KLM Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
KLM Logo
5:40 am - 1:35 pm
OPO
-
PHX
14h 55m
1 stop
$728KLM
Sat, Dec 5 - Wed, Dec 9
Delta Logo
7:00 am - 10:30 am
PHX
-
OPO
20h 30m
2 stops
Delta Logo
11:00 am - 8:34 pm
OPO
-
PHX
16h 34m
1 stop
$730Delta
Tue, Nov 17 - Thu, Nov 19

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Iberia flights from Phoenix to Porto

Our best Iberia deals on Phoenix to Porto flight tickets
Iberia
Nov 16
PHX8:25 pmPhoenix Sky Harbor Intl
16h 35m
2 stops
OPO8:00 pmPorto
Nov 30
OPO8:40 pmPorto
28h 35m
2 stops
PHX6:15 pmPhoenix Sky Harbor Intl
$796
Iberia
Nov 3
PHX9:55 amPhoenix Sky Harbor Intl
18h 50m
2 stops
OPO11:45 amPorto
Nov 30
OPO8:40 pmPorto
28h 35m
2 stops
PHX6:15 pmPhoenix Sky Harbor Intl
$797

KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
Dec 2
PHX7:00 amPhoenix Sky Harbor Intl
19h 05m
1 stop
OPO9:05 amPorto
Dec 9
OPO5:40 amPorto
14h 55m
1 stop
PHX1:35 pmPhoenix Sky Harbor Intl
$716
KLM
Dec 5
PHX11:59 pmPhoenix Sky Harbor Intl
26h 06m
1 stop
OPO9:05 amPorto
Dec 9
OPO5:40 amPorto
14h 55m
1 stop
PHX1:35 pmPhoenix Sky Harbor Intl
$728
KLM
Nov 8
PHX3:50 pmPhoenix Sky Harbor Intl
23h 10m
1 stop
OPO10:00 pmPorto
Nov 14
OPO5:00 amPorto
19h 15m
2 stops
PHX5:15 pmPhoenix Sky Harbor Intl
$768

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 June 9, 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

Wed 12/2

7:00 am-9:05 am

1 stop19h 05m

Porto

Wed 12/9

5:40 am-1:35 pm

1 stop14h 55m

$716

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 11/4

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Fri 11/20

5:00 am-5:15 pm

2 stops19h 15m

$718

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/1

7:00 am-9:05 am

1 stop19h 05m

Porto

Thu 11/19

5:00 am-5:15 pm

2 stops19h 15m

$719

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/16

1:00 pm-10:00 pm

2 stops26h 00m

Porto

Tue 11/24

5:00 am-12:42 am

2 stops26h 42m

$723

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 11/14

11:59 pm-9:05 am

1 stop26h 06m

Porto

Wed 11/18

5:00 am-12:14 am

2 stops26h 14m

$724

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 10/31

11:59 pm-9:05 am

1 stop26h 06m

Porto

Fri 11/27

5:00 am-8:44 pm

2 stops22h 44m

$725

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/15

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Thu 12/3

11:00 am-11:59 pm

1 stop19h 59m

$726
Quickest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/1

1:00 pm-9:05 am

1 stop13h 05m

Porto

Thu 12/3

11:00 am-11:59 pm

1 stop19h 59m

$727

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

11:59 pm-9:05 am

1 stop26h 06m

Porto

Wed 12/9

5:40 am-1:35 pm

1 stop14h 55m

$728

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 11/17

7:00 am-10:30 am

2 stops20h 30m

Porto

Thu 11/19

11:00 am-8:34 pm

1 stop16h 34m

$730

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 $860 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 $640 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

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 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
American AirlinesPriceFrom $460Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,796 reviews
Search United Airlines flights
DeltaPriceFrom $646Free CancellationRating
7.9
8,394 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
Chaves
Esposende
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
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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