Cheap Flights from Southampton to Trieste

Compare Southampton 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 Southampton to Trieste

Looking for a cheap last-minute deal or the best return flight from Southampton to Trieste? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Southampton to Trieste

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

Southampton to Trieste: Alternative routes

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

Southampton to Trieste: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 12,883
Cheapest month to flyAugust

Finding cheap flights from Southampton to Trieste: Frequently asked questions

The best price we found for a return flight from Southampton to Trieste is ج.م.‏ 14,874. 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 Southampton to Trieste. But we found flights with one or more stops from ج.م.‏ 14,874.
As of August 2025, there are no flights flying from Southampton to Trieste.
The cheapest month to fly from Southampton to Trieste is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Trieste Airport on Monday, 22 September 2025.
No airlines currently offer direct flights between Southampton 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, easyJet offers the cheapest flight tickets to Trieste.

Travelling from Southampton Airport (SOU) to Trieste - Friuli Venezia Giulia Airport (TRS): what you need to know

  • Trieste's timezone is UTC+1, which makes Trieste one hour ahead of Southampton.

  • Arrive at the airport on time so you don't miss your SOU to TRS flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • You'll likely experience longer lines in popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • Pick a stopover if you'd love to break up your flight. Just deselect 'Direct flights only' to look at all your options for tickets from Southampton Airport to Trieste - Friuli Venezia Giulia Airport. Dublin Airport is a popular stopover on the SOU to TRS route.

How to find the cheapest flights from Southampton Airport (SOU) to Trieste - Friuli Venezia Giulia Airport (TRS)

  • At the moment, ج.م.‏ 12,883 is the cheapest price we've seen for a one-way Southampton Airport to Trieste - Friuli Venezia Giulia Airport flight. The best price for a return ticket is ج.م.‏ 14,874. Keep in mind that fares could change due to demand at the time of booking.

  • It's a good idea to book early if you want to get cheap tickets from SOU to TRS. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll find the cheapest price across every month when searching for a flight from Southampton Airport to Trieste - Friuli Venezia Giulia Airport.

  • Finding cheap flights from SOU to TRS is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Tailor your trip using filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Southampton Airport to Trieste - Friuli Venezia Giulia Airport.

Handy information about Southampton Airport (SOU)

  • 55.7% of flights that leave from Southampton Airport land at their destination on time.

  • To get to Southampton Airport from central Southampton, it takes around 20 minutes by car. This depends on traffic though. It's approximately 8 kilometres from the airport to the city centre.

  • The journey when using public transport takes roughly 25 minutes.

  • Catching an early flight from Southampton Airport to Trieste - Friuli Venezia Giulia Airport? Avoid the stress of rushing to the airport (and sneak in some extra snooze time) by choosing one of these hotels close to SOU:

Arriving at Trieste - Friuli Venezia Giulia Airport (TRS)

Getting from Trieste - Friuli Venezia Giulia Airport (TRS) to central Trieste

  • From Trieste - Friuli Venezia Giulia Airport, Trieste is approximately 40 kilometres away. It takes around 40 minutes to reach the centre by car.

  • If you're travelling on public transport, expect a journey time of roughly 55 minutes.

When to fly to Trieste - Friuli Venezia Giulia Airport (TRS)

  • July is the busiest month for flights from Southampton Airport to Trieste - Friuli Venezia Giulia Airport. To steer clear of the crowds, go to Trieste in April.

  • Before locking in your flight from Southampton Airport to Trieste - Friuli Venezia Giulia Airport, consider the type of weather you like. August is the warmest month in Trieste, with the temperature ranging from 17ºC to 30ºC.

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

Explore more of Italy

  • Rome is just one of the many cities in Italy waiting to be explored after you've experienced Trieste. Around 434 kilometres away to the south, its best attractions include Colosseum, World’s smallest country Vatican City tour - City of Rome Capital, Italy (Self-Guided free walking tour) by FreeGuides.com and Trevi Fountain.

  • If you're interested in discovering another great destination in Italy, head for Milan, about 354 kilometres west of Trieste. Grande Museo del Duomo di Milano, Milan Cathedral and The Last Supper Museum are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.