Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Phoenix Sky Harbor Intl Airport to Porto from $238

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 Sky Harbor Intl Airport to Porto departing on 4/8. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m1 stop
KLM Logo
6:15 am - 1:10 pm
OPO
-
PHX
14h 55m1 stop
$570KLM
ven., mars 27 - mar., mars 31
KLM Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m1 stop
KLM Logo
6:15 am - 5:35 pm
OPO
-
PHX
19h 20m2 stops
$580KLM
ven., mars 27 - mar., mars 31
American Airlines Logo
5:00 am - 7:40 am
PHX
-
OPO
18h 40m2 stops
American Airlines Logo
8:20 am - 7:39 pm
OPO
-
PHX
19h 19m2 stops
$596American Airlines
lun., avr. 20 - jeu., avr. 30
Lufthansa Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
Lufthansa Logo
6:00 am - 9:37 pm
OPO
-
PHX
22h 37m2 stops
$598Lufthansa
jeu., févr. 26 - mer., mars 4
United Airlines Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
United Airlines Logo
6:00 am - 8:51 pm
OPO
-
PHX
21h 51m2 stops
$607United Airlines
mer., févr. 25 - dim., mars 1
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
$611KLM
ven., janv. 23 - mer., févr. 4
United Airlines Logo
8:30 am - 9:30 am
PHX
-
OPO
18h 00m2 stops
United Airlines Logo
6:00 am - 11:03 pm
OPO
-
PHX
24h 03m2 stops
$612United Airlines
mer., févr. 25 - dim., mars 1
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
ven., janv. 23 - mer., févr. 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
mer., févr. 25 - dim., mars 1
Delta Logo
12:10 pm - 3:30 pm
PHX
-
OPO
19h 20m2 stops
Delta Logo
5:00 am - 10:58 pm
OPO
-
PHX
25h 58m2 stops
$620Delta
dim., mai 10 - ven., mai 15

American Airlines flights from Phoenix Sky Harbor Intl Airport to Porto

Our best American Airlines deals on Phoenix Sky Harbor Intl Airport to Porto flight tickets
American Airlines
Apr 20
PHX5:00 amPhoenix Sky Harbor Intl
18h 40m
2 stops
OPO7:40 amPorto
Apr 30
OPO8:20 amPorto
19h 19m
2 stops
PHX7:39 pmPhoenix Sky Harbor Intl
$596
Find similar
American Airlines
Apr 20
PHX5:00 amPhoenix Sky Harbor Intl
18h 40m
2 stops
OPO7:40 amPorto
Apr 30
OPO8:20 amPorto
19h 19m
2 stops
PHX7:39 pmPhoenix Sky Harbor Intl
$633
Find similar
American Airlines
May 19
PHX6:08 amPhoenix Sky Harbor Intl
17h 32m
2 stops
OPO7:40 amPorto
Jun 2
OPO8:20 amPorto
20h 43m
2 stops
PHX9:03 pmPhoenix Sky Harbor Intl
$768
Find similar

Delta flights from Phoenix Sky Harbor Intl Airport to Porto

Our best Delta deals on Phoenix Sky Harbor Intl Airport to Porto flight tickets
Delta
Jan 23
PHX6:15 amPhoenix Sky Harbor Intl
21h 15m
2 stops
OPO10:30 amPorto
Feb 4
OPO5:00 amPorto
26h 11m
2 stops
PHX12:11 amPhoenix Sky Harbor Intl
$614
Find similar
Delta
May 10
PHX12:10 pmPhoenix Sky Harbor Intl
19h 20m
2 stops
OPO3:30 pmPorto
May 15
OPO5:00 amPorto
25h 58m
2 stops
PHX10:58 pmPhoenix Sky Harbor Intl
$620
Find similar
Delta
Mar 30
PHX12:50 pmPhoenix Sky Harbor Intl
18h 35m
2 stops
OPO3:25 pmPorto
Apr 20
OPO5:00 amPorto
24h 47m
2 stops
PHX9:47 pmPhoenix Sky Harbor Intl
$634
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport 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 décembre 23, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

ven. 3/27

3:50 pm-10:00 pm

1 stop23h 10m

Porto

mar. 3/31

6:15 am-1:10 pm

1 stop14h 55m

$570

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

ven. 3/27

3:50 pm-10:00 pm

1 stop23h 10m

Porto

mar. 3/31

6:15 am-5:35 pm

2 stops19h 20m

$580

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

lun. 4/20

5:00 am-7:40 am

2 stops18h 40m

Porto

jeu. 4/30

8:20 am-7:39 pm

2 stops19h 19m

$596

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jeu. 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

mer. 3/4

6:00 am-9:37 pm

2 stops22h 37m

$598

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mer. 2/25

11:10 am-9:30 am

1 stop15h 20m

Porto

dim. 3/1

6:00 am-8:51 pm

2 stops21h 51m

$607

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

ven. 1/23

3:50 pm-10:30 am

1 stop35h 40m

Porto

mer. 2/4

5:00 am-5:35 pm

2 stops19h 35m

$611

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mer. 2/25

8:30 am-9:30 am

2 stops18h 00m

Porto

dim. 3/1

6:00 am-11:03 pm

2 stops24h 03m

$612

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

ven. 1/23

6:15 am-10:30 am

2 stops21h 15m

Porto

mer. 2/4

5:00 am-12:11 am

2 stops26h 11m

$614

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mer. 2/25

11:10 am-9:30 am

1 stop15h 20m

Porto

dim. 3/1

12:35 pm-9:37 pm

1 stop16h 02m

$616

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

dim. 5/10

12:10 pm-3:30 pm

2 stops19h 20m

Porto

ven. 5/15

5:00 am-10:58 pm

2 stops25h 58m

$620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Porto from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport, 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 Sky Harbor Intl Airport for as low as $652 on momondo.

Can stopping save me money on Phoenix Sky Harbor Intl Airport to Porto flights?

You could potentially save up to 11% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to Porto flight.

When to book flights from Phoenix Sky Harbor Intl Airport to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Porto (PHX to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to Porto

Fastest flight time

14h 55m

Direct flights

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

  • How far is Phoenix Sky Harbor Intl to Porto by plane?

    The straight-line distance from Phoenix Sky Harbor Intl to Porto is 5347.3 mi. In terms of flight time, this usually takes a little over 14h 55m.

  • When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Porto Airport?

    Prices for flights from Phoenix Sky Harbor Intl Airport to Porto Airport were last updated today.

  • How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Porto Airport?

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Porto Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Phoenix Sky Harbor Intl Airport 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.

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to Porto?

Best airlines flying from Phoenix Sky Harbor Intl Airport to Porto

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Porto with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $568Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,607 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,015 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.8
484 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?

It is quick and easy to find Phoenix to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits 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?

Once all potential Phoenix to Porto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Phoenix to Porto right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto from Phoenix. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Porto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
jeu. 1/22
jeu. 1/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal