Cheap flights from Trieste to Lisbon

Compare Trieste to Lisbon flight deals

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

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Flight deals from Trieste to Lisbon

Looking for a cheap last-minute deal or the best round-trip flight from Trieste Airport to Lisbon Airport? If you want to travel next month, round-trip fares start from $161. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Trieste to Lisbon

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

Trieste to Lisbon: Alternative routes

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

Trieste to Lisbon: Flight information

The things to know before you go.
Cheapest flight found$140
Cheapest month to flySeptember

Finding cheap flights from Trieste to Lisbon: Frequently asked questions

The best price we found for a round-trip flight from Trieste to Lisbon is $140. 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 Trieste to Lisbon. But we found flights with one or more stops from $140.
There are no flights flying from Trieste to Lisbon, as of June 2026.
The cheapest month to fly from Trieste to Lisbon is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Trieste Airport to Lisbon Airport on Monday, September 28, 2026.
No airlines currently offer direct flights between Trieste Airport and Lisbon 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 Lisbon 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 Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Ryanair offers the cheapest flight tickets to Lisbon.

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

  • Lisbon's timezone is UTC+0, which makes Lisbon one hour behind Trieste.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to catch your TRS to LIS flight.

  • During popular months such as July, it's best to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're traveling during a high season in general.

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

  • Right now, $59 is the cheapest price we've seen for a one-way Trieste Airport to Lisbon Airport flight. The best price for a return ticket is $140. Keep in mind that fares could change due to demand when booking.

  • To find cheap tickets from TRS to LIS, book ahead. Airlines typically offer their best fares when flights are first released.

  • Getting cheap flights from Trieste Airport to Lisbon Airport is easier if you can be flexible with your dates. Use the 'Whole month' search tool to see the lowest fares across every month and snap up a great deal.

  • Cut down on the time spent looking for cheap flights from TRS to LIS by creating a Price Alert. You'll get an email or notification on the app when a special offer becomes available.

  • Pick your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Trieste Airport to Lisbon Airport.

Handy information about Trieste Airport (TRS)

  • Trieste Airport gets high marks for on-time performance. 87% of flights that depart TRS land on time.

  • Trieste Airport is around 32 kilometers from central Trieste. If you're ride-sharing, catching a cab or driving from the center, it'll take 35 minutes or so to arrive, depending on the traffic.

  • You can expect a trip time of around 45 minutes on public transport.

  • Get your vacation off to a stress-free start by staying near TRS. Whether you've booked an early flight from Trieste Airport to Lisbon Airport or want to avoid feeling rushed, these hotels have you covered:

Arriving at Lisbon Airport (LIS)

  • Consider booking a hotel near LIS if you're catching a late Trieste Airport to Lisbon Airport flight. Settle into one of these accommodation options and skip the long transfer after landing:

  • Pick up a Lisbon Airport rental car and explore Lisbon and beyond with your own set of wheels. Klass Wagen, Goldcar and OK Mobility are popular providers to choose from here.

  • Secure the lowest price by reserving your vehicle from Lisbon Airport around two weeks before your trip.

Getting from Lisbon Airport (LIS) to central Lisbon

  • Lisbon Airport to central Lisbon has a drive time of around 20 minutes. It's approximately 8 kilometers away.

  • Traveling by public transport takes around 25 minutes.

When to fly to Lisbon Airport (LIS)

  • August is the busiest month for flights from Trieste Airport to Lisbon Airport. To steer clear of the crowds, travel to Lisbon in March.

  • The warmest month in Lisbon is August, with temperatures ranging between 16ºC (61ºF) and 29ºC (84ºF). Lock in your flights from Trieste Airport to Lisbon Airport in this month if this is the type of weather you enjoy.

  • January has average temperatures of between 8ºC (46ºF) and 16ºC (61ºF). Search for cheap tickets from TRS to LIS sometime then if you want to travel when it's cooler.

Explore more of Portugal

  • Lisbon has its own special appeal, but there are so many other corners of Portugal just waiting to be discovered. About 274 kilometers north of Lisbon, a trip to Porto will keep your itinerary packed. Check out popular attractions like Ribeira District, Rio Douro and Livraria Lello.

  • If there's time to check out another side of Portugal, head for Amadora, about 8 kilometers north-west of Lisbon. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are highlights.

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