$158 Cheap Flights from Trieste (TRS) to Lisbon (LIS)

View $158 flight on Thu, May 7, 2026Opens 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 $158 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, May 5 - Tue, May 12
TRS
Trieste
LIS
Lisbon
$198 Roundtrip, found 3 days ago
$198
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, May 5 from Trieste to Lisbon, returning Tue, May 12, priced at $198 found 3 days ago
Lufthansa
Mon, May 4 - Mon, May 11
TRS
Trieste
LIS
Lisbon
$216 Roundtrip, just found
$216
Roundtrip
just found
Select Lufthansa flight, departing Mon, May 4 from Trieste to Lisbon, returning Mon, May 11, priced at $216 just found
Lufthansa
Tue, May 5 - Tue, May 12
TRS
Trieste
LIS
Lisbon
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, May 5 from Trieste to Lisbon, returning Tue, May 12, priced at $218 found 3 days ago
Lufthansa
Mon, May 4 - Mon, May 11
TRS
Trieste
LIS
Lisbon
$231 Roundtrip, just found
$231
Roundtrip
just found
Select Lufthansa flight, departing Mon, May 4 from Trieste to Lisbon, returning Mon, May 11, priced at $231 just found
Lufthansa
Tue, May 5 - Tue, May 12
TRS
Trieste
LIS
Lisbon
$233 Roundtrip, found 3 days ago
$233
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Tue, May 5 from Trieste to Lisbon, returning Tue, May 12, priced at $233 found 3 days ago
Lufthansa
Mon, May 4 - Mon, May 11
TRS
Trieste
LIS
Lisbon
$234 Roundtrip, just found
$234
Roundtrip
just found
Select Lufthansa flight, departing Mon, May 4 from Trieste to Lisbon, returning Mon, May 11, priced at $234 just found
ITA Airways
Mon, May 4 - Mon, May 11
TRS
Trieste
LIS
Lisbon
$408 Roundtrip, just found
$408
Roundtrip
just found
Select ITA Airways flight, departing Mon, May 4 from Trieste to Lisbon, returning Mon, May 11, priced at $408 just found
TAP Portugal
Tue, Oct 13 - Wed, Oct 21
TRS
Trieste
LIS
Lisbon
$430 Roundtrip, found 6 days ago
$430
Roundtrip
found 6 days ago
Select TAP Portugal flight, departing Tue, Oct 13 from Trieste to Lisbon, returning Wed, Oct 21, priced at $430 found 6 days ago
Air France
Fri, Sep 18 - Fri, Oct 2
TRS
Trieste
LIS
Lisbon
$489 Roundtrip, found 5 days ago
$489
Roundtrip
found 5 days ago
Select Air France flight, departing Fri, Sep 18 from Trieste to Lisbon, returning Fri, Oct 2, priced at $489 found 5 days ago
KLM
Fri, May 22 - Fri, May 29
TRS
Trieste
LIS
Lisbon
$667 Roundtrip, found 6 hours ago
$667
Roundtrip
found 6 hours ago
Select KLM flight, departing Fri, May 22 from Trieste to Lisbon, returning Fri, May 29, priced at $667 found 6 hours ago

Alternative airports near Lisbon

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

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from $618
LIS
Humberto Delgado
Cheapest
Flights from $618

Frequently asked questions

How much does a flight from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) cost?
You can find cheap one-way flights from $158 and cheap return flights from $198 Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) with Expedia. One-way flights usually range from $318 to $1057, and return flights typically cost between $372 and $1684. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
The cheapest month to fly from TRS to LIS is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
Enter TRS to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
Air France is one of the cheapest airlines offering connecting flights from Trieste (TRS) to Lisbon (LIS) with a layover in Fiumicino - Leonardo da Vinci Intl. (FCO), starting from around $356 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Friuli Venezia Giulia Airport (TRS) to Humberto Delgado Airport (LIS) usually departs at 6:30 AM, operated by Air Dolomiti and Lufthansa. This seasonal service is active in June and October, giving you a great start to your day in Lisbon. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) are in the late afternoon, from 3pm to 6pm. About 59% of passengers prefer this time window. Many major carriers, including TAP Air Portugal and Lufthansa, offer flights during this window. This timing is favored as it allows you to enjoy your day before heading to the airport.
How long does it take to fly from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
A flight from TRS to LIS with a layover takes around 8 hours 30 minutes, with the route covering approximately 1,249 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
Business class seats are offered on the TRS to LIS route with Air Dolomiti and ITA Airways.
How do I earn miles on a Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon from Friuli Venezia Giulia (TRS)?
From Friuli Venezia Giulia (TRS), you can fly into Humberto Delgado (LIS) to reach Lisbon. Some flights may connect through major hubs like Frankfurt Intl. (FRA), Fiumicino - Leonardo da Vinci Intl. (FCO), Linate (LIN) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) Lisbon Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays 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 Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado)?
If you booked your Trieste (TRS-Friuli Venezia Giulia) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, 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 if you'd like more information.

Travel information

Origin airport
Friuli Venezia Giulia
Destination airport
Humberto Delgado
Airlines serving
Air Europa, Air France, ITA Airways, KLM, Lufthansa, TAP Portugal
Roundtrip price
$197
Distance
1248 mi

Book with confidence

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 May. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $158 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.

 

Trieste to Lisbon Flights

*Flight schedules are subject to change.

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