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Cheap flights from Phoenix Sky Harbor Intl Airport to Porto from $594

This is the cheapest round-trip 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 11/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Porto (PHX-OPO)

Cheap round-trip flights

United Airlines Logo
11:59 pm - 9:30 amPHX-OPO
26h 31m2 stops
United Airlines Logo
6:00 am - 9:05 pmOPO-PHX
22h 05m2 stops
$594United Airlines
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sáb., nov. 22 - mié., dic. 3
United Airlines Logo
12:50 pm - 9:30 amPHX-OPO
13h 40m1 stop
United Airlines Logo
6:00 am - 10:03 amOPO-PHX
35h 03m2 stops
$639United Airlines
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jue., nov. 6 - jue., nov. 13
United Airlines Logo
12:50 pm - 9:30 amPHX-OPO
13h 40m1 stop
United Airlines Logo
12:35 pm - 10:34 pmOPO-PHX
16h 59m1 stop
$643United Airlines
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jue., nov. 6 - jue., nov. 13
KLM Logo
3:50 pm - 10:30 amPHX-OPO
35h 40m1 stop
KLM Logo
11:25 am - 1:35 pmOPO-PHX
33h 10m1 stop
$657KLM
Find Deal
sáb., nov. 22 - mié., dic. 3
American Airlines Logo
7:50 am - 7:40 amPHX-OPO
16h 50m2 stops
American Airlines Logo
8:20 am - 11:52 pmOPO-PHX
22h 32m2 stops
$708American Airlines
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sáb., nov. 1 - sáb., nov. 8
American Airlines Logo
1:39 pm - 3:55 pmPHX-OPO
18h 16m2 stops
American Airlines Logo
8:15 am - 7:49 pmOPO-PHX
19h 34m2 stops
$768American Airlines
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mar., sep. 30 - jue., oct. 9
Delta Logo
11:44 pm - 3:30 pmPHX-OPO
31h 46m2 stops
Delta Logo
9:20 am - 10:27 amOPO-PHX
33h 07m2 stops
$786Delta
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mar., sep. 16 - vie., sep. 26
Delta Logo
12:59 pm - 7:35 pmPHX-OPO
22h 36m2 stops
Delta Logo
9:20 am - 11:00 pmOPO-PHX
21h 40m2 stops
$817Delta
Find Deal
mié., sep. 17 - vie., sep. 26
KLM Logo
1:25 pm - 3:35 pmPHX-OPO
18h 10m2 stops
KLM Logo
6:15 am - 4:03 pmOPO-PHX
17h 48m2 stops
$836KLM
Find Deal
mié., sep. 17 - mié., sep. 24
Air Transat Logo
12:40 pm - 11:55 amPHX-OPO
15h 15m1 stop
Air Transat Logo
1:30 pm - 11:40 amOPO-PHX
30h 10m1 stop
$879Air Transat
Find Deal
lun., sep. 8 - jue., sep. 11

Lufthansa flights from Phoenix Sky Harbor Intl Airport to Porto

Our best Lufthansa deals on Phoenix Sky Harbor Intl Airport to Porto flight tickets
Lufthansa
Nov 1
PHX11:55 amPhoenix Sky Harbor Intl
17h 55m
2 stops
OPO12:50 pmPorto
Nov 8
OPO6:00 amPorto
23h 51m
2 stops
PHX10:51 pmPhoenix Sky Harbor Intl
$699
Find similar
Lufthansa
Nov 1
PHX5:20 pmPhoenix Sky Harbor Intl
23h 20m
2 stops
OPO11:40 pmPorto
Nov 8
OPO12:35 pmPorto
17h 16m
1 stop
PHX10:51 pmPhoenix Sky Harbor Intl
$727
Find similar
Lufthansa
Nov 1
PHX1:51 pmPhoenix Sky Harbor Intl
15h 59m
2 stops
OPO12:50 pmPorto
Nov 8
OPO12:35 pmPorto
17h 16m
1 stop
PHX10:51 pmPhoenix Sky Harbor Intl
$728
Find similar

Air Canada flights from Phoenix Sky Harbor Intl Airport to Porto

Our best Air Canada deals on Phoenix Sky Harbor Intl Airport to Porto flight tickets
Air Canada
Sep 16
PHX11:20 amPhoenix Sky Harbor Intl
38h 00m
2 stops
OPO9:20 amPorto
Sep 23
OPO12:50 pmPorto
37h 52m
2 stops
PHX6:42 pmPhoenix Sky Harbor Intl
$732
Find similar
Air Canada
Sep 16
PHX11:20 amPhoenix Sky Harbor Intl
38h 00m
2 stops
OPO9:20 amPorto
Sep 23
OPO12:50 pmPorto
14h 29m
1 stop
PHX7:19 pmPhoenix Sky Harbor Intl
$745
Find similar
Air Canada
Sep 16
PHX11:20 amPhoenix Sky Harbor Intl
38h 00m
2 stops
OPO9:20 amPorto
Sep 24
OPO6:00 amPorto
36h 22m
2 stops
PHX10:22 amPhoenix Sky Harbor Intl
$748
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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 agosto 26, 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

sáb. 11/22

11:59 pm-9:30 am

2 stops26h 31m

Porto

mié. 12/3

6:00 am-9:05 pm

2 stops22h 05m

$594

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jue. 11/6

12:50 pm-9:30 am

1 stop13h 40m

Porto

jue. 11/13

6:00 am-10:03 am

2 stops35h 03m

$639

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jue. 11/6

12:50 pm-9:30 am

1 stop13h 40m

Porto

jue. 11/13

12:35 pm-10:34 pm

1 stop16h 59m

$643

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

sáb. 11/22

3:50 pm-10:30 am

1 stop35h 40m

Porto

mié. 12/3

11:25 am-1:35 pm

1 stop33h 10m

$657

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

sáb. 11/1

7:50 am-7:40 am

2 stops16h 50m

Porto

sáb. 11/8

8:20 am-11:52 pm

2 stops22h 32m

$708

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mar. 9/30

1:39 pm-3:55 pm

2 stops18h 16m

Porto

jue. 10/9

8:15 am-7:49 pm

2 stops19h 34m

$768

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mar. 9/16

11:44 pm-3:30 pm

2 stops31h 46m

Porto

vie. 9/26

9:20 am-10:27 am

2 stops33h 07m

$786

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mié. 9/17

12:59 pm-7:35 pm

2 stops22h 36m

Porto

vie. 9/26

9:20 am-11:00 pm

2 stops21h 40m

$817

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

mié. 9/17

1:25 pm-3:35 pm

2 stops18h 10m

Porto

mié. 9/24

6:15 am-4:03 pm

2 stops17h 48m

$836

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

lun. 9/8

12:40 pm-11:55 am

1 stop15h 15m

Porto

jue. 9/11

1:30 pm-11:40 am

1 stop30h 10m

$879

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 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 $595. 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 $627.

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 $842 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 34% 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

Direct flights

None
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.
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  • 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 13h 40m.

  • 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
10,000 reviews
Search Air Canada flights
KLMPriceFrom $579Free CancellationRating
7.8
1,387 reviews
Search KLM flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
DeltaPriceFrom $590Free CancellationRating
7.9
7,979 reviews
Search Delta flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,309 reviews
Search British Airways flights
Air TransatPriceFrom $797Free CancellationRating
7.7
428 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
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Guimarães
Lamego
Esposende
Chaves
Arcos de Valdevez
Espinho
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
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.

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