$443 Cheap Flights from Tucson (TUS) to Porto (OPO)

View $443 flight on Mon, Nov 24, 2025Opens in a new window

Popular airlines from Tucson International Airport (TUS) to Porto Airport (OPO)

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Cheap Flights from Tucson to Porto (TUS-OPO)

Prices were available within the past 7 days and start at $443 for one-way flights and $535 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 24 - Mon, Dec 15
TUS
Tucson
OPO
Porto
$535 Roundtrip, found 5 days ago
$535
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 24 from Tucson to Porto, returning Mon, Dec 15, priced at $535 found 5 days ago
United
Tue, Nov 25 - Fri, Dec 12
TUS
Tucson
OPO
Porto
$537 Roundtrip, just found
$537
Roundtrip
just found
Select United flight, departing Tue, Nov 25 from Tucson to Porto, returning Fri, Dec 12, priced at $537 just found
United
Tue, Nov 25 - Mon, Dec 15
TUS
Tucson
OPO
Porto
$539 Roundtrip, just found
$539
Roundtrip
just found
Select United flight, departing Tue, Nov 25 from Tucson to Porto, returning Mon, Dec 15, priced at $539 just found
Delta
Fri, Nov 28 - Sun, Dec 7
TUS
Tucson
OPO
Porto
$540 Roundtrip, just found
$540
Roundtrip
just found
Select Delta flight, departing Fri, Nov 28 from Tucson to Porto, returning Sun, Dec 7, priced at $540 just found
United
Mon, Nov 24 - Mon, Dec 15
TUS
Tucson
OPO
Porto
$543 Roundtrip, found 5 days ago
$543
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 24 from Tucson to Porto, returning Mon, Dec 15, priced at $543 found 5 days ago
United
Mon, Nov 24 - Mon, Dec 15
TUS
Tucson
OPO
Porto
$543 Roundtrip, found 5 days ago
$543
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 24 from Tucson to Porto, returning Mon, Dec 15, priced at $543 found 5 days ago
Delta
Mon, Nov 24 - Sun, Dec 7
TUS
Tucson
OPO
Porto
$547 Roundtrip, just found
$547
Roundtrip
just found
Select Delta flight, departing Mon, Nov 24 from Tucson to Porto, returning Sun, Dec 7, priced at $547 just found
Air France
Sat, Nov 22 - Thu, Dec 4
TUS
Tucson
OPO
Porto
$572 Roundtrip, found 6 hours ago
$572
Roundtrip
found 6 hours ago
Select Air France flight, departing Sat, Nov 22 from Tucson to Porto, returning Thu, Dec 4, priced at $572 found 6 hours ago
Iberia
Mon, Nov 24 - Thu, Dec 4
TUS
Tucson
OPO
Porto
$580 Roundtrip, found 6 days ago
$580
Roundtrip
found 6 days ago
Select Iberia flight, departing Mon, Nov 24 from Tucson to Porto, returning Thu, Dec 4, priced at $580 found 6 days ago
British Airways
Tue, Nov 25 - Fri, Dec 5
TUS
Tucson
OPO
Porto
$592 Roundtrip, found 6 days ago
$592
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Nov 25 from Tucson to Porto, returning Fri, Dec 5, priced at $592 found 6 days ago
Flights from Tucson (TUS) to Porto (OPO)
Origin airport
Tucson Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air France, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, United
Roundtrip price
$534
Distance
5359 mi

Tucson to Porto Flights

The cheapest times to fly from Tucson 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 Tucson to Porto are during the month of November. You can find some of the cheapest flights from Tucson to Porto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tucson to Porto

Sunday is one of the best days to book for cheap flights from Tucson 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 Tucson 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 Tucson to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $443 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 Tucson 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 Tucson 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.

 

Frequently asked questions

How much does a flight from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Lock in a cheap one-way flight from $443 or cheap return flight from $535 from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
The cheapest month to fly from TUS to OPO is November, when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To find the cheapest airline flying from TUS to OPO, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
You'll have to catch a flight with a layover when traveling from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from TUS to OPO?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To arrive at Dr. Francisco de Sa Carneiro Airport (OPO) without delays, choose a flight that takes off from Tucson Intl. Airport (TUS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Booking your flight from TUS to OPO shortly before your trip is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a TUS to OPO flight and hotel package?
You'll generally save money by booking a TUS to OPO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Tucson Intl. Airport (TUS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
In most instances, you can modify or cancel your TUS to OPO flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.