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Cheap flights from Phoenix to Porto from $418

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 3/14. 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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0 bags

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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.
Iberia Logo
10:16 am - 11:45 am
PHX
-
OPO
18h 29m2 stops
Iberia Logo
8:20 am - 8:06 pm
OPO
-
PHX
18h 46m2 stops
$559Iberia
jue., feb. 26 - mié., mar. 4
Lufthansa Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
Lufthansa Logo
6:00 am - 9:37 pm
OPO
-
PHX
22h 37m2 stops
$594Lufthansa
jue., feb. 26 - mié., mar. 4
Lufthansa Logo
6:30 am - 9:30 am
PHX
-
OPO
20h 00m1 stop
Lufthansa Logo
12:35 pm - 9:37 pm
OPO
-
PHX
16h 02m1 stop
$609Lufthansa
jue., feb. 26 - mié., mar. 4
Lufthansa Logo
6:30 am - 9:30 am
PHX
-
OPO
20h 00m1 stop
Lufthansa Logo
4:15 pm - 5:59 pm
OPO
-
PHX
32h 44m2 stops
$615Lufthansa
dom., mar. 1 - lun., mar. 16
United Airlines Logo
8:30 am - 9:30 am
PHX
-
OPO
18h 00m2 stops
United Airlines Logo
6:00 am - 9:30 am
OPO
-
PHX
34h 30m2 stops
$639United Airlines
dom., mar. 1 - lun., mar. 16
Air Canada Logo
11:59 pm - 12:50 pm
PHX
-
OPO
29h 51m2 stops
Air Canada Logo
6:00 am - 10:44 am
OPO
-
PHX
35h 44m2 stops
$640Air Canada
dom., mar. 1 - lun., mar. 16
Lufthansa Logo
11:10 am - 9:30 am
PHX
-
OPO
15h 20m1 stop
Lufthansa Logo
4:15 pm - 6:59 pm
OPO
-
PHX
33h 44m2 stops
$646Lufthansa
jue., feb. 26 - mié., mar. 4
KLM Logo
3:50 pm - 10:30 am
PHX
-
OPO
35h 40m1 stop
KLM Logo
4:20 pm - 1:10 pm
OPO
-
PHX
28h 50m1 stop
$647KLM
vie., mar. 20 - lun., mar. 30
United Airlines Logo
9:00 am - 9:45 am
PHX
-
OPO
16h 45m2 stops
United Airlines Logo
6:00 am - 8:20 pm
OPO
-
PHX
22h 20m3 stops
$651United Airlines
lun., abr. 20 - jue., abr. 30
Lufthansa Logo
6:30 am - 9:30 am
PHX
-
OPO
20h 00m1 stop
Lufthansa Logo
12:35 pm - 10:15 pm
OPO
-
PHX
16h 40m1 stop
$653Lufthansa
dom., mar. 1 - lun., mar. 16

Lufthansa flights from Phoenix to Porto

Our best Lufthansa deals on Phoenix to Porto flight tickets
Lufthansa
Mar 1
PHX6:30 amPhoenix Sky Harbor Intl
20h 00m
1 stop
OPO9:30 amPorto
Mar 16
OPO4:15 pmPorto
32h 44m
2 stops
PHX5:59 pmPhoenix Sky Harbor Intl
$615
Find similar
Lufthansa
Feb 26
PHX11:10 amPhoenix Sky Harbor Intl
15h 20m
1 stop
OPO9:30 amPorto
Mar 4
OPO4:15 pmPorto
33h 44m
2 stops
PHX6:59 pmPhoenix Sky Harbor Intl
$646
Find similar
Lufthansa
Mar 1
PHX6:30 amPhoenix Sky Harbor Intl
20h 00m
1 stop
OPO9:30 amPorto
Mar 16
OPO12:35 pmPorto
16h 40m
1 stop
PHX10:15 pmPhoenix Sky Harbor Intl
$653
Find similar

KLM flights from Phoenix to Porto

Our best KLM deals on Phoenix to Porto flight tickets
KLM
Mar 20
PHX3:50 pmPhoenix Sky Harbor Intl
35h 40m
1 stop
OPO10:30 amPorto
Mar 30
OPO4:20 pmPorto
28h 50m
1 stop
PHX1:10 pmPhoenix Sky Harbor Intl
$647
Find similar
KLM
Jan 21
PHX3:50 pmPhoenix Sky Harbor Intl
35h 35m
1 stop
OPO10:25 amPorto
Jan 25
OPO5:00 amPorto
20h 19m
2 stops
PHX6:19 pmPhoenix Sky Harbor Intl
$738
Find similar
KLM
Dec 28
PHX3:50 pmPhoenix Sky Harbor Intl
35h 40m
1 stop
OPO10:30 amPorto
Jan 30
OPO5:00 amPorto
21h 04m
2 stops
PHX7:04 pmPhoenix Sky Harbor Intl
$827
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 diciembre 11, 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

jue. 2/26

10:16 am-11:45 am

2 stops18h 29m

Porto

mié. 3/4

8:20 am-8:06 pm

2 stops18h 46m

$559

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jue. 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

mié. 3/4

6:00 am-9:37 pm

2 stops22h 37m

$594

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jue. 2/26

6:30 am-9:30 am

1 stop20h 00m

Porto

mié. 3/4

12:35 pm-9:37 pm

1 stop16h 02m

$609

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

dom. 3/1

6:30 am-9:30 am

1 stop20h 00m

Porto

lun. 3/16

4:15 pm-5:59 pm

2 stops32h 44m

$615

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

dom. 3/1

8:30 am-9:30 am

2 stops18h 00m

Porto

lun. 3/16

6:00 am-9:30 am

2 stops34h 30m

$639

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

dom. 3/1

11:59 pm-12:50 pm

2 stops29h 51m

Porto

lun. 3/16

6:00 am-10:44 am

2 stops35h 44m

$640

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

jue. 2/26

11:10 am-9:30 am

1 stop15h 20m

Porto

mié. 3/4

4:15 pm-6:59 pm

2 stops33h 44m

$646

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

vie. 3/20

3:50 pm-10:30 am

1 stop35h 40m

Porto

lun. 3/30

4:20 pm-1:10 pm

1 stop28h 50m

$647

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

lun. 4/20

9:00 am-9:45 am

2 stops16h 45m

Porto

jue. 4/30

6:00 am-8:20 pm

3 stops22h 20m

$651

PhoenixPorto

PHX - OPO

PHXOPO

Phoenix Sky Harbor Intl

dom. 3/1

6:30 am-9:30 am

1 stop20h 00m

Porto

lun. 3/16

12:35 pm-10:15 pm

1 stop16h 40m

$653

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 $815 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

Fastest flight time

15h 20m

Direct flights

None
The fastest flight from Phoenix to Porto takes 15h 20m
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 15h 20m.

  • 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
10,517 reviews
Search Air Canada flights
United AirlinesPriceFrom $585Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
American AirlinesPriceFrom $592Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
British AirwaysPriceFrom $600Free CancellationRating
6.7
7,571 reviews
Search British Airways flights
DeltaPriceFrom $639Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Air TransatPriceFrom $797Free CancellationRating
7.8
480 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
Braga
Aveiro
Matosinhos
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
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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