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Cheap flights from Phoenix to Porto from $305

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 10/17. 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
5:55 am - 1:55 pm
OPO
-
PHX
15h 00m
1 stop
$721KLM
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
9:15 am - 9:30 am
PHX
-
OPO
17h 15m
1 stop
United Airlines Logo
6:00 am - 10:44 pm
OPO
-
PHX
23h 44m
2 stops
$722United Airlines
Sun, Dec 6 - Thu, Dec 10
KLM Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
KLM Logo
5:00 am - 5:35 pm
OPO
-
PHX
19h 35m
2 stops
$723KLM
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
7:03 pm - 9:30 am
PHX
-
OPO
31h 27m
2 stops
United Airlines Logo
6:00 am - 8:55 pm
OPO
-
PHX
21h 55m
2 stops
$726United Airlines
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
11:59 pm - 9:30 am
PHX
-
OPO
26h 31m
1 stop
United Airlines Logo
6:00 am - 6:55 pm
OPO
-
PHX
19h 55m
2 stops
$727United Airlines
Sat, Dec 5 - Wed, Dec 9
Multiple Airlines Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
2 stops
Multiple Airlines Logo
5:00 am - 7:56 pm
OPO
-
PHX
21h 56m
2 stops
$728Multiple Airlines
Wed, Nov 4 - Wed, Nov 11
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
$729Delta
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
9:15 am - 9:30 am
PHX
-
OPO
17h 15m
1 stop
United Airlines Logo
12:35 pm - 11:37 pm
OPO
-
PHX
18h 02m
1 stop
$731United Airlines
Sun, Dec 6 - Thu, Dec 10
Delta Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Delta Logo
5:55 am - 1:55 pm
OPO
-
PHX
15h 00m
1 stop
$732Delta
Sat, Dec 5 - Wed, Dec 9
Air Canada Logo
7:20 am - 11:15 am
PHX
-
OPO
20h 55m
2 stops
Air Canada Logo
6:15 am - 12:23 pm
OPO
-
PHX
37h 08m
2 stops
$771Air Canada
Tue, Oct 27 - Sun, Nov 1

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KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
Nov 4
PHX7:00 amPhoenix Sky Harbor Intl
19h 05m
1 stop
OPO9:05 amPorto
Nov 11
OPO5:55 amPorto
15h 00m
1 stop
PHX1:55 pmPhoenix Sky Harbor Intl
$721
KLM
Nov 4
PHX7:00 amPhoenix Sky Harbor Intl
19h 05m
1 stop
OPO9:05 amPorto
Nov 11
OPO5:00 amPorto
19h 35m
2 stops
PHX5:35 pmPhoenix Sky Harbor Intl
$723
KLM
Sep 28
PHX6:10 amPhoenix Sky Harbor Intl
20h 20m
1 stop
OPO10:30 amPorto
Oct 6
OPO5:00 amPorto
19h 16m
2 stops
PHX4:16 pmPhoenix Sky Harbor Intl
$881

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Dec 6
PHX9:15 amPhoenix Sky Harbor Intl
17h 15m
1 stop
OPO9:30 amPorto
Dec 10
OPO6:00 amPorto
23h 44m
2 stops
PHX10:44 pmPhoenix Sky Harbor Intl
$722
United Airlines
Dec 5
PHX7:03 pmPhoenix Sky Harbor Intl
31h 27m
2 stops
OPO9:30 amPorto
Dec 9
OPO6:00 amPorto
21h 55m
2 stops
PHX8:55 pmPhoenix Sky Harbor Intl
$726
United Airlines
Dec 5
PHX11:59 pmPhoenix Sky Harbor Intl
26h 31m
1 stop
OPO9:30 amPorto
Dec 9
OPO6:00 amPorto
19h 55m
2 stops
PHX6:55 pmPhoenix Sky Harbor Intl
$727

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 July 26, 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

Wed 11/4

7:00 am-9:05 am

1 stop19h 05m

Porto

Wed 11/11

5:55 am-1:55 pm

1 stop15h 00m

$721

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/6

9:15 am-9:30 am

1 stop17h 15m

Porto

Thu 12/10

6:00 am-10:44 pm

2 stops23h 44m

$722

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 11/4

7:00 am-9:05 am

1 stop19h 05m

Porto

Wed 11/11

5:00 am-5:35 pm

2 stops19h 35m

$723

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

7:03 pm-9:30 am

2 stops31h 27m

Porto

Wed 12/9

6:00 am-8:55 pm

2 stops21h 55m

$726

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

11:59 pm-9:30 am

1 stop26h 31m

Porto

Wed 12/9

6:00 am-6:55 pm

2 stops19h 55m

$727

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 11/4

7:00 am-9:05 am

2 stops19h 05m

Porto

Wed 11/11

5:00 am-7:56 pm

2 stops21h 56m

$728

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

11:59 pm-9:05 am

1 stop26h 06m

Porto

Wed 12/9

5:00 am-8:44 pm

2 stops22h 44m

$729

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/6

9:15 am-9:30 am

1 stop17h 15m

Porto

Thu 12/10

12:35 pm-11:37 pm

1 stop18h 02m

$731

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

11:59 pm-9:05 am

1 stop26h 06m

Porto

Wed 12/9

5:55 am-1:55 pm

1 stop15h 00m

$732

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 10/27

7:20 am-11:15 am

2 stops20h 55m

Porto

Sun 11/1

6:15 am-12:23 pm

2 stops37h 08m

$771

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?

Prices are currently low for flights on this route.

Typical prices usually range from $788 to $1,112.
The lowest price recently found on this route was $721.

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, 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 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 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 $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 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

17h 00m

Direct flights

None
The fastest flight from Phoenix to Porto takes 17h 00m
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 17h 00m.

  • 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
11,844 reviews
Search American Airlines flights
Air FrancePriceFrom $556Free CancellationRating
7.5
1,625 reviews
Search Air France flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
10,040 reviews
Search United Airlines flights
DeltaPriceFrom $646Free CancellationRating
7.8
8,487 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
Esposende
Lamego
Pinhao
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?

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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