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

Compare Lisbon to Trieste flight deals

Find the cheapest month or even day of the year to fly to Trieste

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Flight deals from Lisbon to Trieste

Looking for a cheap last-minute deal or the best return flight from Lisbon Airport to Trieste Airport? If you want to travel next month, return fares start from £96. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Lisbon to Trieste

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Lisbon to Trieste flights are currently cheapest in September.

Lisbon to Trieste: Alternative routes

Compare routes from Lisbon to Trieste below. You may find an airport to fly into that's cheaper, faster, or easier than Trieste.

Lisbon to Trieste: Flight information

The things to know before you go.
Cheapest flight found£48
Cheapest month to flySeptember

Finding cheap flights from Lisbon to Trieste: Frequently asked questions

The best price we found for a return flight from Lisbon to Trieste is £96. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Lisbon to Trieste. But we found flights with one or more stops from £96.
As of June 2026, there are no flights flying from Lisbon to Trieste.
The cheapest month to fly from Lisbon to Trieste is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lisbon Airport to Trieste Airport on Friday, 17 July 2026.
No airlines currently offer direct flights between Lisbon Airport and Trieste Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Trieste but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Trieste is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Vueling Airlines offers the cheapest flight tickets to Trieste.

Flying from Lisbon Airport (LIS) to Trieste Airport (TRS): what you need to know

  • The timezone in Trieste is UTC+1, which is one hour ahead of Lisbon.

  • Give yourself enough time to catch your LIS to TRS flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer lines in popular months such as August. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

  • Consider adding a stopover when booking your ticket from Lisbon Airport to Trieste Airport. Just deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here's where you can stop between LIS and TRS:

    • Frankfurt am Main Airport

    • Barcelona Airport

    • Rome Fiumicino Airport

How to find the cheapest flights from Lisbon Airport (LIS) to Trieste Airport (TRS)

  • Right now, £48 is the cheapest price we've seen for a one-way Lisbon Airport to Trieste Airport flight. The best price for a return plane ticket is £96. Keep in mind that fares could change due to demand when booking.

  • It's usually best to book early if you want to get cheap tickets from LIS to TRS. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • If you're willing to be flexible with your travel plans, try using the 'Whole month' tool. It'll give you the cheapest price in each month when searching for a flight from Lisbon Airport to Trieste Airport.

  • Landing cheap flights from LIS to TRS is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when a new deal comes up.

  • Secure the right flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Lisbon Airport to Trieste Airport, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Lisbon Airport (LIS)

  • 56% of flights that take off from Lisbon Airport reach their destination on schedule.

  • To get to Lisbon Airport from central Lisbon, it'll take about 20 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 8 kms (5 miles) from the airport to the city centre.

  • The trip when using public transport typically takes 25 minutes.

  • Need a convenient hotel near LIS? If you're catching an early flight from Lisbon Airport to Trieste Airport, these stays will have you moments from your check-in counter:

Arriving at Trieste Airport (TRS)

  • If you're coming in on a late Lisbon Airport to Trieste Airport flight, few things top the convenience of being near the terminal. Pick up your bags from the carousel and then be tucked up in bed soon after at one of these hotels near TRS:

  • Travel at your own pace with a Trieste Airport rental car. Pick up your wheels from Sicily by Car, Drivalia or Maggiore and discover more of Trieste and beyond.

  • Reserving your ride from Trieste Airport around three weeks in advance increases your chances of getting a good deal.

When to fly to Trieste Airport (TRS)

  • July is the most popular month for flights from Lisbon Airport to Trieste Airport. For a quieter experience, visit Trieste in March.

  • When booking your flight from Lisbon Airport to Trieste Airport, think about the kind of weather you like. August is the warmest month in Trieste, with temperatures ranging from 17ºC to 31ºC.

  • Look for cheap tickets from LIS to TRS in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC and 9ºC on average.

Explore more of Italy

  • You've seen Trieste, now it's time to explore other parts of Italy. Travel about 434 kms (270 miles) south to Rome to tick off its leading sights. From Vatican Museums to St. Peter's Basilica and Saint Peter's Square, there's plenty to keep you busy.

  • If you're interested in discovering another well-known destination in Italy, head for Milan, about 354 kms (220 miles) west of Trieste. Leonardo's Last Supper Museum, Teatro alla Scala and Milan Cathedral are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.