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Cheap flights from Phoenix to Porto from $300

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 1/10. 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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Find the cheapest flights from Phoenix to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
11:10 am - 9:30 amPHX-OPO
15h 20m1 stop
Lufthansa Logo
4:15 pm - 6:55 pmOPO-PHX
33h 40m2 stops
$637Lufthansa
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Thu, Feb 26 - Wed, Mar 4
Lufthansa Logo
2:00 pm - 11:25 pmPHX-OPO
25h 25m2 stops
Lufthansa Logo
6:00 am - 5:55 pmOPO-PHX
19h 55m2 stops
$638Lufthansa
Find Deal
Fri, May 1 - Sat, May 9
Lufthansa Logo
2:29 pm - 11:25 pmPHX-OPO
24h 56m2 stops
Lufthansa Logo
6:20 am - 8:20 pmOPO-PHX
22h 00m2 stops
$640Lufthansa
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Mon, Apr 20 - Thu, Apr 30
SWISS Logo
7:30 am - 6:30 pmPHX-OPO
27h 00m2 stops
SWISS Logo
8:40 am - 9:44 pmOPO-PHX
21h 04m2 stops
$642SWISS
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Fri, May 1 - Sat, May 9
Lufthansa Logo
3:45 pm - 11:40 pmPHX-OPO
24h 55m2 stops
Lufthansa Logo
4:15 pm - 6:55 pmOPO-PHX
33h 40m2 stops
$644Lufthansa
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Thu, Feb 26 - Wed, Mar 4
Delta Logo
2:00 pm - 3:25 pmPHX-OPO
18h 25m2 stops
Delta Logo
6:30 am - 10:42 pmOPO-PHX
23h 12m2 stops
$647Delta
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Tue, Dec 30 - Fri, Jan 30
United Airlines Logo
6:30 pm - 9:30 amPHX-OPO
32h 00m2 stops
United Airlines Logo
6:00 am - 10:56 amOPO-PHX
35h 56m2 stops
$649United Airlines
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Sat, Mar 7 - Sun, Mar 15
United Airlines Logo
6:00 am - 9:45 amPHX-OPO
19h 45m2 stops
United Airlines Logo
6:00 am - 11:24 pmOPO-PHX
25h 24m3 stops
$650United Airlines
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Fri, May 1 - Sat, May 9
United Airlines Logo
11:10 am - 9:30 amPHX-OPO
15h 20m1 stop
United Airlines Logo
12:30 pm - 3:44 pmOPO-PHX
34h 14m2 stops
$652United Airlines
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Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
11:20 pm - 11:40 amPHX-OPO
29h 20m2 stops
Multiple Airlines Logo
6:00 am - 10:22 pmOPO-PHX
23h 22m2 stops
$655Multiple Airlines
Find Deal
Sat, Mar 14 - Sun, Mar 22

Lufthansa flights from Phoenix to Porto

Our best Lufthansa deals on Phoenix to Porto flight tickets
Lufthansa
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 4
OPO4:15 pmPorto
33h 40m
2 stops
PHX6:55 pmPhoenix Sky Harbor Intl
$637
Find similar
Lufthansa
May 1
PHX2:00 pmPhoenix Sky Harbor Intl
25h 25m
2 stops
OPO11:25 pmPorto
May 9
OPO6:00 amPorto
19h 55m
2 stops
PHX5:55 pmPhoenix Sky Harbor Intl
$638
Find similar
Lufthansa
Apr 20
PHX2:29 pmPhoenix Sky Harbor Intl
24h 56m
2 stops
OPO11:25 pmPorto
Apr 30
OPO6:20 amPorto
22h 00m
2 stops
PHX8:20 pmPhoenix Sky Harbor Intl
$640
Find similar

United Airlines flights from Phoenix to Porto

Our best United Airlines deals on Phoenix to Porto flight tickets
United Airlines
Mar 7
PHX6:30 pmPhoenix Sky Harbor Intl
32h 00m
2 stops
OPO9:30 amPorto
Mar 15
OPO6:00 amPorto
35h 56m
2 stops
PHX10:56 amPhoenix Sky Harbor Intl
$649
Find similar
United Airlines
May 1
PHX6:00 amPhoenix Sky Harbor Intl
19h 45m
2 stops
OPO9:45 amPorto
May 9
OPO6:00 amPorto
25h 24m
3 stops
PHX11:24 pmPhoenix Sky Harbor Intl
$650
Find similar
United Airlines
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 4
OPO12:30 pmPorto
34h 14m
2 stops
PHX3:44 pmPhoenix Sky Harbor Intl
$652
Find similar

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 November 13, 2025.
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

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

4:15 pm-6:55 pm

2 stops33h 40m

$637

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 5/1

2:00 pm-11:25 pm

2 stops25h 25m

Porto

Sat 5/9

6:00 am-5:55 pm

2 stops19h 55m

$638

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

2:29 pm-11:25 pm

2 stops24h 56m

Porto

Thu 4/30

6:20 am-8:20 pm

2 stops22h 00m

$640

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 5/1

7:30 am-6:30 pm

2 stops27h 00m

Porto

Sat 5/9

8:40 am-9:44 pm

2 stops21h 04m

$642

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

3:45 pm-11:40 pm

2 stops24h 55m

Porto

Wed 3/4

4:15 pm-6:55 pm

2 stops33h 40m

$644

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Tue 12/30

2:00 pm-3:25 pm

2 stops18h 25m

Porto

Fri 1/30

6:30 am-10:42 pm

2 stops23h 12m

$647

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

6:30 pm-9:30 am

2 stops32h 00m

Porto

Sun 3/15

6:00 am-10:56 am

2 stops35h 56m

$649

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 5/1

6:00 am-9:45 am

2 stops19h 45m

Porto

Sat 5/9

6:00 am-11:24 pm

3 stops25h 24m

$650

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

12:30 pm-3:44 pm

2 stops34h 14m

$652

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/14

11:20 pm-11:40 am

2 stops29h 20m

Porto

Sun 3/22

6:00 am-10:22 pm

2 stops23h 22m

$655

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 cheapest month to fly to Porto?

The month of November is, on average, the cheapest month to fly to Porto from Phoenix, 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 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 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 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $875 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 $652 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

Direct flights

None
There are no direct flights from Phoenix to Porto. There are no popular flight routes from Phoenix to Porto.
Search flight deals

  • 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 45m.

  • 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
Air CanadaPriceFrom $568Free CancellationRating
7.1
10,448 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,518 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.8
471 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
Aveiro
Matosinhos
Braga
Lamego
Guimarães
Esposende
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
Curia
Penafiel
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.

An easier way to manage your Porto trip

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