$163 Cheap Flights from Trieste (TRS) to Lisbon (LIS)

View $163 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Humberto Delgado Airport (LIS)

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Cheap Flights from Trieste to Lisbon (TRS-LIS)

Prices were available within the past 7 days and start at $163 for one-way flights and $225 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
LIS
Lisbon
$225 Roundtrip, found 1 day ago
$225
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $225 found 1 day ago
Lufthansa
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $234 found 1 day ago
Lufthansa
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $252 found 1 day ago
Lufthansa
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$261 Roundtrip, found 1 day ago
$261
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $261 found 1 day ago
Lufthansa
Sat, Nov 29 - Sat, Dec 6
TRS
Trieste
LIS
Lisbon
$270 Roundtrip, found 2 days ago
$270
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, Nov 29 from Trieste to Lisbon, returning Sat, Dec 6, priced at $270 found 2 days ago
Lufthansa
Sat, Nov 29 - Sat, Dec 6
TRS
Trieste
LIS
Lisbon
$272 Roundtrip, found 2 days ago
$272
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, Nov 29 from Trieste to Lisbon, returning Sat, Dec 6, priced at $272 found 2 days ago
Air Dolomiti
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$323 Roundtrip, found 1 day ago
$323
Roundtrip
found 1 day ago
Select Air Dolomiti flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $323 found 1 day ago
ITA Airways
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$326 Roundtrip, found 1 day ago
$326
Roundtrip
found 1 day ago
Select ITA Airways flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $326 found 1 day ago
TAP Portugal
Fri, Nov 14 - Mon, Nov 17
TRS
Trieste
LIS
Lisbon
$454 Roundtrip, found 1 day ago
$454
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Fri, Nov 14 from Trieste to Lisbon, returning Mon, Nov 17, priced at $454 found 1 day ago
Air France
Tue, Sep 30 - Wed, Oct 1
TRS
Trieste
LIS
Lisbon
$560 Roundtrip, found 3 days ago
$560
Roundtrip
found 3 days ago
Select Air France flight, departing Tue, Sep 30 from Trieste to Lisbon, returning Wed, Oct 1, priced at $560 found 3 days ago
Flights from Trieste (TRS) to Lisbon (LIS)
Origin airport
Friuli Venezia Giulia
Destination airport
Humberto Delgado
Airlines serving
Air Europa, Air France, ITA Airways, KLM, Lufthansa, TAP Portugal
Roundtrip price
$224
Distance
1248 mi

Trieste to Lisbon Flights

The cheapest times to fly from Trieste to Lisbon

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

 

The best time to book a flight from Trieste to Lisbon

Sunday is one of the best days to book for cheap flights from Trieste to Lisbon: 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 Lisbon

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 Lisbon in 2025. You can also book with separate airlines for your outbound and return journeys, from $163 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 Lisbon 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 Lisbon 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 Humberto Delgado Airport (LIS) cost?
Discover the latest flight deals from TRS to LIS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRS to LIS?
The cheapest flights from TRS to LIS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRS to LIS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TRS to LIS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Humberto Delgado Airport (LIS)?
You'll need to hop on a flight with a layover when traveling from Friuli Venezia Giulia Airport (TRS) to Humberto Delgado Airport (LIS). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from TRS to LIS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*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 Humberto Delgado Airport (LIS)?
To reach Humberto Delgado Airport (LIS) on time, choose a flight that leaves 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 Humberto Delgado Airport (LIS) last-minute?
Waiting until just before your trip to book a flight from TRS to LIS often results in higher prices. While you may come across some last-minute offers, there's no guarantee. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a TRS to LIS flight and hotel package?
You'll generally save money by booking a TRS to LIS 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 place. After choosing your preferred flights and accommodations, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Humberto Delgado Airport (LIS)?
If you reserved your TRS to LIS flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.