$162 Cheap Flights from Trieste (TRS) to Porto (OPO)

View $162 flight on Tue, Feb 24, 2026Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Porto Airport (OPO)

Cheap Flights from Trieste to Porto (TRS-OPO)

Prices were available within the past 7 days and start at $162 for one-way flights and $387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
OPO
Porto
$387 Roundtrip, found 3 days ago
$387
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Porto, returning Mon, Nov 17, priced at $387 found 3 days ago
ITA Airways
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
OPO
Porto
$394 Roundtrip, found 3 days ago
$394
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Fri, Nov 14 from Trieste to Porto, returning Mon, Nov 17, priced at $394 found 3 days ago
ITA Airways
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
OPO
Porto
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Fri, Nov 14 from Trieste to Porto, returning Mon, Nov 17, priced at $409 found 3 days ago
Lufthansa
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
OPO
Porto
$421 Roundtrip, found 3 days ago
$421
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Porto, returning Mon, Nov 17, priced at $421 found 3 days ago
TAP Portugal
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
OPO
Porto
$528 Roundtrip, found 3 days ago
$528
Roundtrip
found 3 days ago
Select TAP Portugal flight, departing Fri, Nov 14 from Trieste to Porto, returning Mon, Nov 17, priced at $528 found 3 days ago
ITA Airways
Fri, Nov 7 - Sun, Nov 9
TRS
Trieste
OPO
Porto
$703 Roundtrip, found 15 hours ago
$703
Roundtrip
found 15 hours ago
Select ITA Airways flight, departing Fri, Nov 7 from Trieste to Porto, returning Sun, Nov 9, priced at $703 found 15 hours ago
Air Europa
Wed, Nov 19 - Sun, Nov 23
TRS
Trieste
OPO
Porto
$723 Roundtrip, found 5 days ago
$723
Roundtrip
found 5 days ago
Select Air Europa flight, departing Wed, Nov 19 from Trieste to Porto, returning Sun, Nov 23, priced at $723 found 5 days ago
ITA Airways
Fri, Nov 7 - Sun, Nov 9
TRS
Trieste
OPO
Porto
$727 Roundtrip, found 15 hours ago
$727
Roundtrip
found 15 hours ago
Select ITA Airways flight, departing Fri, Nov 7 from Trieste to Porto, returning Sun, Nov 9, priced at $727 found 15 hours ago
ITA Airways
Fri, Nov 7 - Sun, Nov 9
TRS
Trieste
OPO
Porto
$728 Roundtrip, found 15 hours ago
$728
Roundtrip
found 15 hours ago
Select ITA Airways flight, departing Fri, Nov 7 from Trieste to Porto, returning Sun, Nov 9, priced at $728 found 15 hours ago
TAP Portugal
Fri, Nov 7 - Sun, Nov 9
TRS
Trieste
OPO
Porto
$739 Roundtrip, found 15 hours ago
$739
Roundtrip
found 15 hours ago
Select TAP Portugal flight, departing Fri, Nov 7 from Trieste to Porto, returning Sun, Nov 9, priced at $739 found 15 hours ago

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 $703
OPO
Dr. Francisco de Sa Carneiro
CheapestClosest
Average driving time to city center14 min
Flights from $703
Flights from Trieste (TRS) to Porto (OPO)
Origin airport
Friuli Venezia Giulia
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Europa, Lufthansa, TAP Portugal
Roundtrip price
$387
Distance
1149 mi

Trieste to Porto Flights

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

 

The best time to book a flight from Trieste to Porto

Sunday is one of the best days to book for cheap flights from Trieste 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 Trieste 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 Trieste to Porto in 2025. You can also book with separate airlines for your outbound and return journeys, from $162 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 Trieste 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 Trieste 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 Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO) cost?
Snag a cheap one-way flight from $162 or cheap return flight from $387 from Friuli Venezia Giulia Airport (TRS) 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 Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
November is the most affordable month to fly from TRS to OPO. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest TRS to OPO flight.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
Direct flights from Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRS to OPO?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
To reach Dr. Francisco de Sa Carneiro Airport (OPO) without delays, book a flight that takes off from Friuli Venezia Giulia Airport (TRS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO) last-minute?
Holding off until just before your departure to book a ticket from TRS to OPO generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of snagging a bargain.
Is it cheaper to book a TRS to OPO flight and hotel package?
You'll typically save money by securing a TRS to OPO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your ideal accommodations and flights, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Dr. Francisco de Sa Carneiro Airport (OPO)?
In most cases, you can reschedule or cancel your TRS to OPO flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, visit our Customer Service portal.

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*Available to One Key members.