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Cheap flights from Phoenix to Porto from $346

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 12/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
KLM Logo
10:35 am - 10:30 amPHX-OPO
16h 55m2 stops
KLM Logo
6:00 am - 9:12 pmOPO-PHX
22h 12m2 stops
$541KLM
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Sat, Dec 6 - Sat, Dec 13
United Airlines Logo
11:10 am - 9:30 amPHX-OPO
15h 20m1 stop
United Airlines Logo
6:00 am - 11:03 pmOPO-PHX
24h 03m2 stops
$558United Airlines
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Thu, Feb 26 - Wed, Mar 4
United Airlines Logo
11:10 am - 9:30 amPHX-OPO
15h 20m1 stop
United Airlines Logo
6:00 am - 3:09 pmOPO-PHX
40h 09m3 stops
$559United Airlines
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Thu, Feb 26 - Wed, Mar 4
Delta Logo
7:00 am - 10:30 amPHX-OPO
20h 30m2 stops
Delta Logo
6:05 am - 12:08 amOPO-PHX
25h 03m2 stops
$591Delta
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Mon, Nov 10 - Tue, Nov 25
Lufthansa Logo
5:30 pm - 10:25 pmPHX-OPO
21h 55m2 stops
Lufthansa Logo
6:00 am - 5:55 pmOPO-PHX
19h 55m2 stops
$626Lufthansa
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Fri, Mar 27 - Tue, Mar 31
Multiple Airlines Logo
3:50 pm - 10:30 amPHX-OPO
35h 40m1 stop
Multiple Airlines Logo
6:00 am - 9:12 pmOPO-PHX
22h 12m2 stops
$638Multiple Airlines
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Sat, Dec 6 - Sat, Dec 13
Air Canada Logo
11:55 pm - 12:50 pmPHX-OPO
29h 55m2 stops
Air Canada Logo
6:15 am - 10:19 pmOPO-PHX
23h 04m2 stops
$641Air Canada
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Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
6:30 pm - 3:15 pmPHX-OPO
37h 45m2 stops
Multiple Airlines Logo
6:15 am - 10:19 pmOPO-PHX
23h 04m2 stops
$647Multiple Airlines
Find Deal
Sat, Mar 7 - Sun, Mar 15
Lufthansa Logo
1:40 pm - 11:20 pmPHX-OPO
25h 40m2 stops
Lufthansa Logo
12:35 pm - 7:52 pmOPO-PHX
15h 17m1 stop
$700Lufthansa
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Mon, Apr 20 - Thu, Apr 30
Delta Logo
10:50 am - 3:25 pmPHX-OPO
21h 35m2 stops
Delta Logo
6:05 am - 9:07 pmOPO-PHX
22h 02m2 stops
$747Delta
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Fri, Nov 7 - Tue, Nov 11

Air France flights from Phoenix to Porto

Our best Air France deals on Phoenix to Porto flight tickets
Air France
Mar 27
PHX3:50 pmPhoenix Sky Harbor Intl
32h 40m
1 stop
OPO7:30 amPorto
Mar 31
OPO4:20 pmPorto
28h 30m
1 stop
PHX12:50 pmPhoenix Sky Harbor Intl
$1,218
Find similar
Air France
Mar 27
PHX3:50 pmPhoenix Sky Harbor Intl
32h 40m
1 stop
OPO7:30 amPorto
Mar 31
OPO4:20 pmPorto
28h 30m
1 stop
PHX12:50 pmPhoenix Sky Harbor Intl
$1,320
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Lufthansa flights from Phoenix to Porto

Our best Lufthansa deals on Phoenix to Porto flight tickets
Lufthansa
Mar 27
PHX5:30 pmPhoenix Sky Harbor Intl
21h 55m
2 stops
OPO10:25 pmPorto
Mar 31
OPO6:00 amPorto
19h 55m
2 stops
PHX5:55 pmPhoenix Sky Harbor Intl
$626
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Lufthansa
Apr 20
PHX1:40 pmPhoenix Sky Harbor Intl
25h 40m
2 stops
OPO11:20 pmPorto
Apr 30
OPO12:35 pmPorto
15h 17m
1 stop
PHX7:52 pmPhoenix Sky Harbor Intl
$700
Find similar
Lufthansa
Nov 1
PHX12:20 pmPhoenix Sky Harbor Intl
14h 10m
1 stop
OPO9:30 amPorto
Nov 8
OPO6:00 amPorto
19h 53m
2 stops
PHX6:53 pmPhoenix Sky Harbor Intl
$942
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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 October 22, 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

Sat 12/6

10:35 am-10:30 am

2 stops16h 55m

Porto

Sat 12/13

6:00 am-9:12 pm

2 stops22h 12m

$541

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

6:00 am-11:03 pm

2 stops24h 03m

$558

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Thu 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

Wed 3/4

6:00 am-3:09 pm

3 stops40h 09m

$559

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 11/10

7:00 am-10:30 am

2 stops20h 30m

Porto

Tue 11/25

6:05 am-12:08 am

2 stops25h 03m

$591

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 3/27

5:30 pm-10:25 pm

2 stops21h 55m

Porto

Tue 3/31

6:00 am-5:55 pm

2 stops19h 55m

$626

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 12/6

3:50 pm-10:30 am

1 stop35h 40m

Porto

Sat 12/13

6:00 am-9:12 pm

2 stops22h 12m

$638

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

11:55 pm-12:50 pm

2 stops29h 55m

Porto

Sun 3/15

6:15 am-10:19 pm

2 stops23h 04m

$641

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Sat 3/7

6:30 pm-3:15 pm

2 stops37h 45m

Porto

Sun 3/15

6:15 am-10:19 pm

2 stops23h 04m

$647

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Mon 4/20

1:40 pm-11:20 pm

2 stops25h 40m

Porto

Thu 4/30

12:35 pm-7:52 pm

1 stop15h 17m

$700

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

Fri 11/7

10:50 am-3:25 pm

2 stops21h 35m

Porto

Tue 11/11

6:05 am-9:07 pm

2 stops22h 02m

$747

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 November is, on average, the cheapest month to fly to Porto from Phoenix, with most prices found around $592. 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 $848 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.
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  • 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 12h 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
10,335 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
8,988 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,028 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,466 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
7,980 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.8
466 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
Braga
Matosinhos
Esposende
Lamego
Guimarães
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.

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