$438 Cheap Flights from Phoenix (PHX) to Porto (OPO)

View $438 flight on Sun, Mar 1, 2026Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Porto Airport (OPO)

Cheap Flights from Phoenix to Porto (PHX-OPO)

Prices were available within the past 7 days and start at $438 for one-way flights and $533 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Nov 27 - Tue, Dec 9
PHX
Phoenix
OPO
Porto
$533 Roundtrip, found 22 hours ago
$533
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Nov 27 from Phoenix to Porto, returning Tue, Dec 9, priced at $533 found 22 hours ago
Air Canada
Thu, Jan 22 - Thu, Jan 29
PHX
Phoenix
OPO
Porto
$533 Roundtrip, found 8 hours ago
$533
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Thu, Jan 22 from Phoenix to Porto, returning Thu, Jan 29, priced at $533 found 8 hours ago
United
Thu, Nov 27 - Sun, Dec 14
PHX
Phoenix
OPO
Porto
$536 Roundtrip, found 1 day ago
$536
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 27 from Phoenix to Porto, returning Sun, Dec 14, priced at $536 found 1 day ago
Air Canada
Thu, Nov 27 - Thu, Dec 4
PHX
Phoenix
OPO
Porto
$537 Roundtrip, found 3 days ago
$537
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Nov 27 from Phoenix to Porto, returning Thu, Dec 4, priced at $537 found 3 days ago
Delta
Wed, Dec 31 - Fri, Jan 16
PHX
Phoenix
OPO
Porto
$538 Roundtrip, found 22 hours ago
$538
Roundtrip
found 22 hours ago
Select Delta flight, departing Wed, Dec 31 from Phoenix to Porto, returning Fri, Jan 16, priced at $538 found 22 hours ago
Swiss International Air Lines
Sat, Jan 24 - Mon, Feb 2
PHX
Phoenix
OPO
Porto
$538 Roundtrip, found 2 days ago
$538
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Sat, Jan 24 from Phoenix to Porto, returning Mon, Feb 2, priced at $538 found 2 days ago
Lufthansa
Thu, Dec 4 - Tue, Dec 16
PHX
Phoenix
OPO
Porto
$539 Roundtrip, found 1 day ago
$539
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Dec 4 from Phoenix to Porto, returning Tue, Dec 16, priced at $539 found 1 day ago
British Airways
Sat, Jan 10 - Tue, Jan 20
PHX
Phoenix
OPO
Porto
$545 Roundtrip, found 1 day ago
$545
Roundtrip
found 1 day ago
Select British Airways flight, departing Sat, Jan 10 from Phoenix to Porto, returning Tue, Jan 20, priced at $545 found 1 day ago
Swiss International Air Lines
Thu, Jan 22 - Thu, Jan 29
PHX
Phoenix
OPO
Porto
$546 Roundtrip, found 8 hours ago
$546
Roundtrip
found 8 hours ago
Select Swiss International Air Lines flight, departing Thu, Jan 22 from Phoenix to Porto, returning Thu, Jan 29, priced at $546 found 8 hours ago
Iberia
Sat, Jan 24 - Mon, Feb 2
PHX
Phoenix
OPO
Porto
$558 Roundtrip, found 2 days ago
$558
Roundtrip
found 2 days ago
Select Iberia flight, departing Sat, Jan 24 from Phoenix to Porto, returning Mon, Feb 2, priced at $558 found 2 days ago

Find the cheapest month to fly from Phoenix (PHX) to Porto (OPO)

November is typically the cheapest month to fly

From $503 - $1,275 per traveler.

Alternative airports near Porto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dr. Francisco de Sa Carneiro OPO. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $799
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $799

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Secure a cheap one-way flight from $438 or cheap return flight from $533 from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO)?
The cheapest month to fly from PHX to OPO is November, when there's less demand. Off-peak season is usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To find the cheapest airline that'll fly you from PHX to OPO, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO)?
There aren't any daily direct flights available from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from PHX to OPO?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Book a flight from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Last-minute fares from PHX to OPO are typically more expensive. For the cheapest rates, start looking for flights early. That said, if you're flexible with your travel plans, you may find a cheap ticket just before your departure.
Is it cheaper to book a PHX to OPO flight and hotel package?
Compared with arranging flights and hotels separately, booking a PHX to OPO flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Dr. Francisco de Sa Carneiro Airport (OPO)?
It's generally possible to cancel or reschedule your PHX to OPO flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, Air Europa, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Iberia, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$532
Distance
5346 mi

Book with confidence

Phoenix to Porto Flights

The cheapest times to fly from Phoenix to Porto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to Porto are during the month of November. You can find some of the cheapest flights from Phoenix to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Porto

Sunday is one of the best days to book for cheap flights from Phoenix to Porto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to Porto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $438 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to Porto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to Porto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Phoenix to Porto Flights

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*Available to One Key members.