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Cheap flights from Phoenix to Porto from $389

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 8/15. 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.
KLM Logo
9:38 am - 10:55 am
PHX
-
OPO
17h 17m
2 stops
KLM Logo
6:15 am - 1:10 pm
OPO
-
PHX
14h 55m
1 stop
$830KLM
Tue, May 5 - Tue, May 12
KLM Logo
9:38 am - 10:55 am
PHX
-
OPO
17h 17m
2 stops
KLM Logo
5:00 am - 6:05 pm
OPO
-
PHX
21h 05m
2 stops
$832KLM
Tue, May 5 - Tue, May 12
Delta Logo
9:35 am - 3:25 pm
PHX
-
OPO
21h 50m
2 stops
Delta Logo
5:55 am - 1:10 pm
OPO
-
PHX
15h 15m
1 stop
$870Delta
Mon, Apr 20 - Thu, Apr 30
Lufthansa Logo
6:00 am - 11:15 am
PHX
-
OPO
21h 15m
2 stops
Lufthansa Logo
6:00 am - 8:08 pm
OPO
-
PHX
22h 08m
2 stops
$873Lufthansa
Mon, Apr 20 - Thu, Apr 30
Lufthansa Logo
6:00 am - 11:15 am
PHX
-
OPO
21h 15m
2 stops
Lufthansa Logo
6:00 am - 8:08 pm
OPO
-
PHX
22h 08m
2 stops
$874Lufthansa
Mon, Apr 20 - Thu, Apr 30
Delta Logo
5:45 am - 10:40 am
PHX
-
OPO
20h 55m
2 stops
Delta Logo
5:55 am - 1:10 pm
OPO
-
PHX
15h 15m
1 stop
$875Delta
Mon, Apr 20 - Thu, Apr 30
KLM Logo
6:00 am - 10:20 am
PHX
-
OPO
20h 20m
1 stop
KLM Logo
5:55 am - 4:35 pm
OPO
-
PHX
18h 40m
2 stops
$876KLM
Sat, Sep 26 - Sat, Oct 10
KLM Logo
3:25 pm - 8:30 am
PHX
-
OPO
33h 05m
1 stop
KLM Logo
12:15 pm - 10:58 pm
OPO
-
PHX
18h 43m
1 stop
$877KLM
Fri, Sep 25 - Mon, Oct 5
British Airways Logo
9:00 pm - 8:40 pm
PHX
-
OPO
15h 40m
1 stop
British Airways Logo
8:20 am - 10:32 pm
OPO
-
PHX
22h 12m
2 stops
$880British Airways
Sat, May 2 - Tue, May 19
Multiple Airlines Logo
12:51 pm - 3:25 pm
PHX
-
OPO
18h 34m
2 stops
Multiple Airlines Logo
4:20 pm - 1:10 pm
OPO
-
PHX
28h 50m
1 stop
$883Multiple Airlines
Mon, Apr 27 - Mon, May 4

KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
May 5
PHX9:38 amPhoenix Sky Harbor Intl
17h 17m
2 stops
OPO10:55 amPorto
May 12
OPO6:15 amPorto
14h 55m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$830
KLM
May 5
PHX9:38 amPhoenix Sky Harbor Intl
17h 17m
2 stops
OPO10:55 amPorto
May 12
OPO5:00 amPorto
21h 05m
2 stops
PHX6:05 pmPhoenix Sky Harbor Intl
$832
KLM
Sep 26
PHX6:00 amPhoenix Sky Harbor Intl
20h 20m
1 stop
OPO10:20 amPorto
Oct 10
OPO5:55 amPorto
18h 40m
2 stops
PHX4:35 pmPhoenix Sky Harbor Intl
$876

Delta flights from Phoenix to Porto

Our best Delta deals on Phoenix to Porto flight tickets
Delta
Apr 20
PHX9:35 amPhoenix Sky Harbor Intl
21h 50m
2 stops
OPO3:25 pmPorto
Apr 30
OPO5:55 amPorto
15h 15m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$870
Delta
Apr 15
PHX9:35 amPhoenix Sky Harbor Intl
21h 50m
2 stops
OPO3:25 pmPorto
Apr 29
OPO5:00 amPorto
22h 50m
2 stops
PHX7:50 pmPhoenix Sky Harbor Intl
$873
Delta
Apr 20
PHX5:45 amPhoenix Sky Harbor Intl
20h 55m
2 stops
OPO10:40 amPorto
Apr 30
OPO5:55 amPorto
15h 15m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$875

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 April 3, 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
Quickest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 5/5

9:38 am-10:55 am

2 stops17h 17m

Porto

Tue 5/12

6:15 am-1:10 pm

1 stop14h 55m

$830

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 5/5

9:38 am-10:55 am

2 stops17h 17m

Porto

Tue 5/12

5:00 am-6:05 pm

2 stops21h 05m

$832

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

9:35 am-3:25 pm

2 stops21h 50m

Porto

Thu 4/30

5:55 am-1:10 pm

1 stop15h 15m

$870

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

6:00 am-11:15 am

2 stops21h 15m

Porto

Thu 4/30

6:00 am-8:08 pm

2 stops22h 08m

$873

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

6:00 am-11:15 am

2 stops21h 15m

Porto

Thu 4/30

6:00 am-8:08 pm

2 stops22h 08m

$874

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

5:45 am-10:40 am

2 stops20h 55m

Porto

Thu 4/30

5:55 am-1:10 pm

1 stop15h 15m

$875

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 9/26

6:00 am-10:20 am

1 stop20h 20m

Porto

Sat 10/10

5:55 am-4:35 pm

2 stops18h 40m

$876

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 9/25

3:25 pm-8:30 am

1 stop33h 05m

Porto

Mon 10/5

12:15 pm-10:58 pm

1 stop18h 43m

$877

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 5/2

9:00 pm-8:40 pm

1 stop15h 40m

Porto

Tue 5/19

8:20 am-10:32 pm

2 stops22h 12m

$880

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/27

12:51 pm-3:25 pm

2 stops18h 34m

Porto

Mon 5/4

4:20 pm-1:10 pm

1 stop28h 50m

$883

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 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 January instead. Flights to Porto in January, while not as cheap as those in November, still average around $619.

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 $809 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

14h 05m

Direct flights

None
The fastest flight from Phoenix to Porto takes 14h 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 14h 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
11,553 reviews
Search American Airlines flights
British AirwaysPriceFrom $523Free CancellationRating
6.7
7,847 reviews
Search British Airways flights
United AirlinesPriceFrom $597Free CancellationRating
7.4
9,540 reviews
Search United Airlines flights
DeltaPriceFrom $640Free CancellationRating
7.9
8,375 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
Aveiro
Braga
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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