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Cheap flights from Phoenix Sky Harbor Intl Airport to Porto from $311

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 10/11. 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 Sky Harbor Intl Airport to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 am - 12:50 pm
PHX
-
OPO
21h 30m
2 stops
Multiple Airlines Logo
6:00 am - 7:16 pm
OPO
-
PHX
20h 16m
2 stops
$701Multiple Airlines
Mon, Nov 23 - Fri, Nov 27
Multiple Airlines Logo
8:20 am - 12:05 pm
PHX
-
OPO
20h 45m
2 stops
Multiple Airlines Logo
12:05 pm - 10:39 pm
OPO
-
PHX
41h 34m
2 stops
$704Multiple Airlines
Mon, Jan 11 - Wed, Jan 20
Delta Logo
4:10 pm - 10:00 pm
PHX
-
OPO
22h 50m
1 stop
Delta Logo
5:55 am - 1:55 pm
OPO
-
PHX
15h 00m
1 stop
$715Delta
Tue, Jan 12 - Thu, Jan 21
Delta Logo
4:10 pm - 10:00 pm
PHX
-
OPO
22h 50m
1 stop
Delta Logo
5:55 am - 1:55 pm
OPO
-
PHX
15h 00m
1 stop
$715Delta
Sun, Nov 15 - Fri, Nov 20
United Airlines Logo
12:39 pm - 9:30 am
PHX
-
OPO
13h 51m
1 stop
United Airlines Logo
6:00 am - 11:15 pm
OPO
-
PHX
24h 15m
2 stops
$717United Airlines
Mon, Nov 16 - Fri, Nov 20
United Airlines Logo
7:00 am - 9:30 am
PHX
-
OPO
19h 30m
2 stops
United Airlines Logo
6:00 am - 11:59 pm
OPO
-
PHX
24h 59m
2 stops
$717United Airlines
Mon, Nov 16 - Fri, Nov 20
Air France Logo
8:52 am - 10:35 am
PHX
-
OPO
18h 43m
2 stops
Air France Logo
5:55 am - 1:55 pm
OPO
-
PHX
15h 00m
1 stop
$770Air France
Tue, Oct 27 - Sun, Nov 1
Air France Logo
12:46 pm - 9:05 am
PHX
-
OPO
13h 19m
1 stop
Air France Logo
11:00 am - 11:59 pm
OPO
-
PHX
19h 59m
1 stop
$776Air France
Sun, Nov 15 - Sat, Nov 21
American Airlines Logo
7:16 am - 7:40 am
PHX
-
OPO
17h 24m
2 stops
American Airlines Logo
8:20 am - 8:49 pm
OPO
-
PHX
19h 29m
2 stops
$789American Airlines
Sun, Oct 25 - Tue, Nov 10
American Airlines Logo
7:05 am - 7:40 am
PHX
-
OPO
16h 35m
2 stops
American Airlines Logo
12:25 pm - 11:26 pm
OPO
-
PHX
19h 01m
2 stops
$878American Airlines
Sun, Sep 20 - Tue, Oct 6

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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 12
PHX4:10 pmPhoenix Sky Harbor Intl
22h 50m
1 stop
OPO10:00 pmPorto
Jan 21
OPO5:55 amPorto
15h 00m
1 stop
PHX1:55 pmPhoenix Sky Harbor Intl
$715
Delta
Nov 18
PHX6:25 amPhoenix Sky Harbor Intl
19h 40m
1 stop
OPO9:05 amPorto
Dec 9
OPO5:55 amPorto
15h 00m
1 stop
PHX1:55 pmPhoenix Sky Harbor Intl
$716
Delta
Jan 12
PHX4:10 pmPhoenix Sky Harbor Intl
22h 50m
1 stop
OPO10:00 pmPorto
Jan 18
OPO11:15 amPorto
36h 42m
2 stops
PHX4:57 pmPhoenix Sky Harbor Intl
$718

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
Jan 11
PHX8:20 amPhoenix Sky Harbor Intl
20h 45m
2 stops
OPO12:05 pmPorto
Jan 22
OPO6:00 amPorto
37h 20m
2 stops
PHX12:20 pmPhoenix Sky Harbor Intl
$721
Air Canada
Jan 11
PHX8:20 amPhoenix Sky Harbor Intl
20h 45m
2 stops
OPO12:05 pmPorto
Jan 17
OPO6:00 amPorto
37h 20m
2 stops
PHX12:20 pmPhoenix Sky Harbor Intl
$771
Air Canada
Jan 14
PHX8:20 amPhoenix Sky Harbor Intl
20h 40m
2 stops
OPO12:00 pmPorto
Jan 17
OPO6:00 amPorto
37h 20m
2 stops
PHX12:20 pmPhoenix Sky Harbor Intl
$821

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 August 4, 2026.
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

Cheapest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/23

8:20 am-12:50 pm

2 stops21h 30m

Porto

Fri 11/27

6:00 am-7:16 pm

2 stops20h 16m

$701

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 1/11

8:20 am-12:05 pm

2 stops20h 45m

Porto

Wed 1/20

12:05 pm-10:39 pm

2 stops41h 34m

$704

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 1/12

4:10 pm-10:00 pm

1 stop22h 50m

Porto

Thu 1/21

5:55 am-1:55 pm

1 stop15h 00m

$715

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/15

4:10 pm-10:00 pm

1 stop22h 50m

Porto

Fri 11/20

5:55 am-1:55 pm

1 stop15h 00m

$715

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/16

12:39 pm-9:30 am

1 stop13h 51m

Porto

Fri 11/20

6:00 am-11:15 pm

2 stops24h 15m

$717

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/16

7:00 am-9:30 am

2 stops19h 30m

Porto

Fri 11/20

6:00 am-11:59 pm

2 stops24h 59m

$717

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

8:52 am-10:35 am

2 stops18h 43m

Porto

Sun 11/1

5:55 am-1:55 pm

1 stop15h 00m

$770
Quickest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/15

12:46 pm-9:05 am

1 stop13h 19m

Porto

Sat 11/21

11:00 am-11:59 pm

1 stop19h 59m

$776

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 10/25

7:16 am-7:40 am

2 stops17h 24m

Porto

Tue 11/10

8:20 am-8:49 pm

2 stops19h 29m

$789

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 9/20

7:05 am-7:40 am

2 stops16h 35m

Porto

Tue 10/6

12:25 pm-11:26 pm

2 stops19h 01m

$878

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 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?

Prices are currently typical for flights on this route.

Typical prices usually range from $646 to $973.
The lowest price recently found on this route was $701.

What is the cheapest month to fly to Porto?

The month of January is, on average, the cheapest month to fly to Porto from Phoenix Sky Harbor Intl Airport, with most prices found around $619. If you aren’t able to travel during the month of January, then book flights to Porto from Phoenix Sky Harbor Intl Airport during February instead. Flights to Porto in February, while not as cheap as those in January, still average around $653.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport 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 $909 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 $640 on momondo.

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

You could potentially save up to 49% 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

13h 19m

Direct flights

None
The fastest flight from Phoenix Sky Harbor Intl Airport to Porto takes 13h 19m
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

Frequently asked questions about flying from Phoenix Sky Harbor Intl Airport to Porto

  • 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 19m.

  • 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
American AirlinesPriceFrom $460Free CancellationRating
7.1
11,845 reviews
Search American Airlines flights
Air FrancePriceFrom $556Free CancellationRating
7.5
1,632 reviews
Search Air France flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
DeltaPriceFrom $646Free CancellationRating
7.8
8,481 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
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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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