$166 Cheap Flights from Lisbon (LIS) to Trieste (TRS)

View $166 flight on Tue, May 5, 2026Opens in a new window

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

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Cheap Flights from Lisbon to Trieste (LIS-TRS)

Prices were available within the past 7 days and start at $166 for one-way flights and $409 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $409 found 3 days ago
Lufthansa
Wed, Oct 1 - Sun, Oct 5
LIS
Lisbon
TRS
Trieste
$417 Roundtrip, found 6 days ago
$417
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Oct 1 from Lisbon to Trieste, returning Sun, Oct 5, priced at $417 found 6 days ago
ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$432 Roundtrip, found 3 days ago
$432
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $432 found 3 days ago
ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$440 Roundtrip, found 3 days ago
$440
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $440 found 3 days ago
ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$462 Roundtrip, found 3 days ago
$462
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $462 found 3 days ago
ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$466 Roundtrip, found 3 days ago
$466
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $466 found 3 days ago
ITA Airways
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$497 Roundtrip, found 3 days ago
$497
Roundtrip
found 3 days ago
Select ITA Airways flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $497 found 3 days ago
TAP Portugal
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$512 Roundtrip, found 3 days ago
$512
Roundtrip
found 3 days ago
Select TAP Portugal flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $512 found 3 days ago
Air France
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$548 Roundtrip, found 3 days ago
$548
Roundtrip
found 3 days ago
Select Air France flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $548 found 3 days ago
KLM
Thu, Nov 13 - Fri, Nov 14
LIS
Lisbon
TRS
Trieste
$695 Roundtrip, found 3 days ago
$695
Roundtrip
found 3 days ago
Select KLM flight, departing Thu, Nov 13 from Lisbon to Trieste, returning Fri, Nov 14, priced at $695 found 3 days ago

Frequently asked questions

How much does a flight from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS) cost?
Get a cheap one-way flight from $166 or cheap return flight from $409 from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS) 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 Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS)?
November is the most affordable month to fly from LIS to TRS. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest LIS to TRS flight.
How many flights per day from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS)?
There are no daily direct flights available from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from LIS to TRS?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS)?
Choose a flight from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS) that leaves before 3 PM to reduce the risk of cancellations. Later departures 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 Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS) last-minute?
Holding off until just before your trip to book a flight from LIS to TRS often results in higher prices. While it's possible to find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a LIS to TRS flight and hotel package?
Booking a LIS to TRS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Humberto Delgado Airport (LIS) to Friuli Venezia Giulia Airport (TRS)?
Typically, it's possible to reschedule or cancel your LIS to TRS flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Humberto Delgado
Destination airport
Friuli Venezia Giulia
Airlines serving
ITA Airways, Lufthansa, TAP Portugal
Roundtrip price
$409
Distance
1248 mi

Book with confidence

Book with confidence

Lisbon to Trieste Flights

The cheapest times to fly from Lisbon to Trieste

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

 

The best time to book a flight from Lisbon to Trieste

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

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 Lisbon to Trieste in 2025. You can also book with separate airlines for your outbound and return journeys, from $166 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 Lisbon to Trieste 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 Lisbon to Trieste 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.

 

Lisbon to Trieste Flights

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*Available to One Key members.