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Cheap flights from Phoenix to Porto from $390

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 10/5. 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
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m
1 stop
KLM Logo
5:00 am - 5:15 pm
OPO
-
PHX
19h 15m
2 stops
$718KLM
Sun, Dec 6 - Thu, Dec 24
Delta Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
Delta Logo
11:15 am - 12:14 am
OPO
-
PHX
19h 59m
2 stops
$719Delta
Wed, Nov 25 - Fri, Nov 27
Delta Logo
11:59 pm - 10:30 am
PHX
-
OPO
27h 31m
2 stops
Delta Logo
5:00 am - 8:44 pm
OPO
-
PHX
22h 44m
2 stops
$723Delta
Mon, Nov 23 - Fri, Nov 27
Delta Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Delta Logo
5:00 am - 12:14 am
OPO
-
PHX
26h 14m
2 stops
$724Delta
Sat, Dec 5 - Wed, Dec 9
Delta Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Delta Logo
11:15 am - 12:14 am
OPO
-
PHX
19h 59m
2 stops
$725Delta
Tue, Nov 24 - Fri, Nov 27
KLM Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m
1 stop
KLM Logo
11:00 am - 11:59 pm
OPO
-
PHX
19h 59m
1 stop
$726KLM
Sun, Dec 6 - Thu, Dec 24
Multiple Airlines Logo
11:59 pm - 9:05 am
PHX
-
OPO
26h 06m
1 stop
Multiple Airlines Logo
5:40 am - 1:35 pm
OPO
-
PHX
14h 55m
1 stop
$727Multiple Airlines
Sat, Dec 5 - Wed, Dec 9
KLM Logo
1:00 pm - 9:05 am
PHX
-
OPO
13h 05m
1 stop
KLM Logo
5:40 am - 1:35 pm
OPO
-
PHX
14h 55m
1 stop
$766KLM
Sun, Nov 8 - Sun, Nov 15
Multiple Airlines Logo
3:50 pm - 10:00 pm
PHX
-
OPO
23h 10m
1 stop
Multiple Airlines Logo
5:00 am - 4:57 pm
OPO
-
PHX
18h 57m
2 stops
$768Multiple Airlines
Sun, Nov 8 - Sun, Nov 15
Delta Logo
7:00 am - 9:05 am
PHX
-
OPO
19h 05m
1 stop
Delta Logo
5:00 am - 7:58 pm
OPO
-
PHX
21h 58m
2 stops
$769Delta
Sun, Nov 15 - Sun, Nov 22

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KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
Dec 6
PHX3:50 pmPhoenix Sky Harbor Intl
23h 10m
1 stop
OPO10:00 pmPorto
Dec 24
OPO5:00 amPorto
19h 15m
2 stops
PHX5:15 pmPhoenix Sky Harbor Intl
$718
KLM
Dec 6
PHX3:50 pmPhoenix Sky Harbor Intl
23h 10m
1 stop
OPO10:00 pmPorto
Dec 24
OPO11:00 amPorto
19h 59m
1 stop
PHX11:59 pmPhoenix Sky Harbor Intl
$726
KLM
Nov 8
PHX1:00 pmPhoenix Sky Harbor Intl
13h 05m
1 stop
OPO9:05 amPorto
Nov 15
OPO5:40 amPorto
14h 55m
1 stop
PHX1:35 pmPhoenix Sky Harbor Intl
$766

Delta flights from Phoenix to Porto

Our best Delta deals on Phoenix to Porto flight tickets
Delta
Nov 25
PHX7:00 amPhoenix Sky Harbor Intl
19h 05m
1 stop
OPO9:05 amPorto
Nov 27
OPO11:15 amPorto
19h 59m
2 stops
PHX12:14 amPhoenix Sky Harbor Intl
$719
Delta
Nov 23
PHX11:59 pmPhoenix Sky Harbor Intl
27h 31m
2 stops
OPO10:30 amPorto
Nov 27
OPO5:00 amPorto
22h 44m
2 stops
PHX8:44 pmPhoenix Sky Harbor Intl
$723
Delta
Dec 5
PHX11:59 pmPhoenix Sky Harbor Intl
26h 06m
1 stop
OPO9:05 amPorto
Dec 9
OPO5:00 amPorto
26h 14m
2 stops
PHX12:14 amPhoenix Sky Harbor Intl
$724

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 June 15, 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

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/6

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Thu 12/24

5:00 am-5:15 pm

2 stops19h 15m

$718

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Wed 11/25

7:00 am-9:05 am

1 stop19h 05m

Porto

Fri 11/27

11:15 am-12:14 am

2 stops19h 59m

$719

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/23

11:59 pm-10:30 am

2 stops27h 31m

Porto

Fri 11/27

5:00 am-8:44 pm

2 stops22h 44m

$723

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-12:14 am

2 stops26h 14m

$724

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 11/24

11:59 pm-9:05 am

1 stop26h 06m

Porto

Fri 11/27

11:15 am-12:14 am

2 stops19h 59m

$725

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 12/6

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Thu 12/24

11:00 am-11:59 pm

1 stop19h 59m

$726

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/5

11:59 pm-9:05 am

1 stop26h 06m

Porto

Wed 12/9

5:40 am-1:35 pm

1 stop14h 55m

$727
Quickest round-trip

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/8

1:00 pm-9:05 am

1 stop13h 05m

Porto

Sun 11/15

5:40 am-1:35 pm

1 stop14h 55m

$766

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/8

3:50 pm-10:00 pm

1 stop23h 10m

Porto

Sun 11/15

5:00 am-4:57 pm

2 stops18h 57m

$768

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sun 11/15

7:00 am-9:05 am

1 stop19h 05m

Porto

Sun 11/22

5:00 am-7:58 pm

2 stops21h 58m

$769

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 April is, on average, the cheapest month to fly to Porto from Phoenix, with most prices found around $460. If you aren’t able to travel during the month of April, then book flights to Porto from Phoenix during January instead. Flights to Porto in January, while not as cheap as those in April, still average around $461.

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 $876 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

14h 55m

Direct flights

None
The fastest flight from Phoenix to Porto takes 14h 55m
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 55m.

  • 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
11,660 reviews
Search American Airlines flights
United AirlinesPriceFrom $589Free CancellationRating
7.4
9,830 reviews
Search United Airlines flights
DeltaPriceFrom $646Free CancellationRating
7.9
8,396 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
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
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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