LON - TRS

£18 Find Cheap Flights from London to Trieste

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Trieste departing on 14/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Trieste

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Trieste, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Trieste, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£43
Overall average: £159
Ryanair
Thu 26/2Thu 5/3
STN - TRS • Direct
Cheapest direct flights
£46
Typical prices: £99-£271
Ryanair
Sun 7/12Sat 13/12
STN - TRS • Direct
Video guide: How to find cheap flights to Trieste
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Top routes
STN-TRS
Cheapest
STN-TRS
Most popular
Insights
Insights
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Insights
When to travel
November
Cheapest • 63% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
6 days a week
There are direct flights from London to Trieste 6 days a week: Mon, Tue, Wed, Thu, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Trieste!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Trieste (LON-TRS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Trieste that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Trieste

Thu, 26 Feb - Thu, 5 Mar
Ryanair Logo
18:10 - 21:15STN-TRS
2h 05mdirect
Ryanair Logo
21:40 - 22:45TRS-STN
2h 05mdirect
£43Ryanair
Find Deal
Sat, 28 Feb - Thu, 5 Mar
Ryanair Logo
14:00 - 17:05STN-TRS
2h 05mdirect
Ryanair Logo
21:40 - 22:45TRS-STN
2h 05mdirect
£45Ryanair
Find Deal
Sun, 7 Dec - Sat, 13 Dec
Ryanair Logo
06:45 - 09:50STN-TRS
2h 05mdirect
Ryanair Logo
17:30 - 18:35TRS-STN
2h 05mdirect
£46Ryanair
Find Deal
Mon, 23 Feb - Sat, 28 Feb
Ryanair Logo
17:25 - 20:30STN-TRS
2h 05mdirect
Ryanair Logo
17:30 - 18:35TRS-STN
2h 05mdirect
£48Ryanair
Find Deal
Sat, 28 Feb - Tue, 3 Mar
Multiple Airlines Logo
05:25 - 12:10LTN-TRS
5h 45m1 stop
Multiple Airlines Logo
12:55 - 17:55TRS-LTN
6h 00m1 stop
£75Multiple Airlines
Find Deal
Sat, 7 Mar - Tue, 10 Mar
Multiple Airlines Logo
05:25 - 12:10LTN-TRS
5h 45m1 stop
Multiple Airlines Logo
12:55 - 22:45TRS-LTN
10h 50m1 stop
£85Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
ITA Airways Logo
08:25 - 18:30LCY-TRS
9h 05m1 stop
ITA Airways Logo
19:15 - 10:55TRS-LCY
16h 40m1 stop
£118ITA Airways
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Tue, 5 May - Wed, 13 May
ITA Airways Logo
07:40 - 18:30LCY-TRS
9h 50m2 stops
ITA Airways Logo
06:35 - 15:55TRS-LCY
10h 20m2 stops
£129ITA Airways
Find Deal
Sat, 3 Jan - Sat, 10 Jan
Lufthansa Logo
06:30 - 14:05LHR-TRS
6h 35m1 stop
Lufthansa Logo
06:25 - 17:45TRS-LHR
12h 20m1 stop
£167Lufthansa
Find Deal
Sun, 7 Dec - Sat, 13 Dec
Lufthansa Logo
07:30 - 14:05LHR-TRS
5h 35m1 stop
Lufthansa Logo
06:25 - 16:50TRS-LHR
11h 25m1 stop
£168Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for London to Trieste flights

Get data-powered insights and trends into flights from London to Trieste to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Trieste
Find cheap flights to Trieste

Planning a trip from London to Trieste? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a return flight from London to Trieste?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Trieste departing in February.

What is the cheapest London to Trieste flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Trieste costs £28 on the route between London Stansted Airport (STN) and Trieste (TRS). It is also the most popular route.

What is the cheapest month to fly from London to Trieste?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Trieste, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Trieste is November, where tickets cost £47 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £209 and £208 respectively.

Can I save money by flying with a stopover from London to Trieste?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £92, prices are generally cheapest when you fly direct.

Good to know - Cheap tickets from London to Trieste

Low seasonJanuary
Cheapest flight£18
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (61% more expensive on average)
Flight from London Stansted Airport to Trieste

When to book flights from London to Trieste

Are your dates flexible? Find out the best times to travel from London to Trieste based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Trieste

  • What is the cheapest flight from London to Trieste?

    In the last 3 days, the lowest price for a flight from London to Trieste was £18 for a one-way ticket and £46 for a return.

  • Which airports will I be using when flying from London to Trieste?

    On your way to Trieste, you’ll fly out from one of these London airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted. You’ll be landing at Trieste Ronchi dei Legionari.

  • Which aircraft models fly most regularly from London to Trieste?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the London to Trieste flight route.

  • Which airline alliances offer flights from London to Trieste?

    Star Alliance is the only airline alliance operating flights between London and Trieste.

  • On which days can I fly direct from London to Trieste?

    You can catch a direct flight from London to Trieste on on Monday, Tuesday, Thursday, Friday, Saturday, and Sunday.

  • Which is the best airline for flights from London to Trieste, Ryanair or Lufthansa?

    The two airlines most popular with KAYAK users for flights from London to Trieste are Ryanair and Lufthansa. With an average price for the route of £115 and an overall rating of 6.8, Ryanair is the most popular choice. Lufthansa is also a great choice for the route, with an average price of £213 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from London to Trieste?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Trieste.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Trieste?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Trieste?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Trieste with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Trieste?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Trieste

  • Looking for a cheap flight from Trieste to London? 25% of our users found flights on this route for £47 or less round-trip.

Prefer to fly direct from London to Trieste?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Trieste Ronchi dei Legionari.
Find which airlines fly direct from London to Trieste Ronchi dei Legionari Airport, which days they fly and book direct flights.

Direct departures

London to Trieste Ronchi dei Legionari

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Wednesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Direct returns

Trieste Ronchi dei Legionari to London

Monday

Ryanair

Ryanair

Tuesday

Ryanair

Ryanair

Wednesday

Ryanair

Ryanair

Thursday

Ryanair

Ryanair

Saturday

Ryanair

Ryanair

Sunday

Ryanair

Ryanair

See more direct flights

Reviews of the top 4 airlines flying from London to Trieste

 
See real verified KAYAK customer reviews for airlines flying from London to Trieste. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Trieste? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.8
RyanairOverall score based on 5195 reviews
7.5Crew
6.5Comfort
5.6Entertainment
6.0Food
6.7Boarding
Airline reviews

I had heard horror stories about Ryan air and was a little worried about my flights with them but I had 3 flights with them in Italy, Puglia and Sicily and it was a painless and smooth process. I was very happy.

8.0 ExcellentJill, Oct 2025BGY - BRI
Read more Ryanair reviews

I had heard horror stories about Ryan air and was a little worried about my flights with them but I had 3 flights with them in Italy, Puglia and Sicily and it was a painless and smooth process. I was very happy.

Ryan air flight was good. Nothing to complain about. I had heard absolute horror stories about Ryan air so was worried about the flight but everything went smoothly. We have had two Ryan air flights with no problems. Last flight is Vernon come. Palermo to Milan. Fingers crossed.

Flight was delayed by 1 hour 45 minutes. Aircraft was cramped, dirty and uncomfortable. Boarding staff more interested in charging you for oversize baggage than getting you on board. Overall not a pleasant experience.

From boarding to disembarking, the whole operation was very efficient.

What we can expect? Soon we will have to travel standing on the hallway. Let me be fair, I had worse experiences with Ryanair.

A delay of almost 3 hours. It was evident that the staff wanted us to board urgently, to the point of rudeness, to avoid paying compensation

It's not the staff's fault. The cabin crew do their best but the setup in Stansted Airport by Ryanair is poor. The herding of people like cattle is unacceptable before boarding and is something that's in every airport but only in Stansted have I seen the queueing of passengers outside the plane on the tarmac and the crew only turning up with maybe 5 minutes to depart. This is a resource issue . Yes prices are good but seemingly comes with a price of poor treatment of customers. I'll pay more next time

On time arrival but the aircraft had seen better days and needed a deep clean.

It was appalling, full of young people who were drunk and disobeying instructions to sit down. Crew did nothing to enforce. There was a Ryanair pilot sitting in the aisle opposite me who talked through out the safety briefing so loudly I couldn’t hear. Whole thing felt unsafe

Delayed for 2 hours lack of communication no refreshments as promised and the drinks on board were not as ordered and refused to refund

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

They didn't open the Check-in desks for almost an hour after they should've been open (even though encouraged us to check-in our carry-on luggage because it was going to be a full flight). They alerted us that the flight would be delayed but slow-rolled informing us of the extent of the delay...which ended up being over 3 hours. As a result of this, I missed my connecting flight and had to stay over-night in Munich when it would've been a lot better for me to just stay in Warsaw another night....Lufthansa wasn't done with me yet though as I had more bad experiences with them after getting to Munich.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The plane was late (as was my flight out from Birmingham the day before)

Boarding and flight update was fantastic as I experienced about a 10-15 delayed for both flights. The food served onboard was great; the service of the flight attendants was excellent.

The flight was delayed by an hour. Made the connection uncomfortably tight.

Complete mess. Our reservation was mistakenly cancelled. After almost missing the connection and walking all over the Munich airport, the Service desk got involved and we were run to our flight. Not all 4 of us in Business and not seated together as originally booked. This was the worst treatment I have ever had. And I travel a lot. 1K million miler.

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Wonderful! Everyone very helpful and kind. Returning flight was cancelled but rebooking was easy.

Pretty normal flight was delayed due to traffic could have missed connecting flight to Venice but crew kept us well informed so we made it

Flight was on time and pretty standard. No Hiccups. I have no complaints, which is a lot to say about a 12 hour flight.

-The seats could be roomier -The entertainment in English could be more current! The moves were very old!!! -They served too many carbs! What happened to fruit and yogurt!!!!

We upgraded to premium economy and it made a difference in a 12 hr flight. I didn’t like that we had to deplane in the tarmac with our carryon luggage. Other than that, it was ok.

Everything was much better than I had expected, since I hadn’t heard of your airline before. I hope to take advantage of your excellent service again.

Staff were nice, we left on time and arrived early, food was good. Unfortunately, they lost one of our bags and have been unable to find it. So we are in Italy for a week for my husband‘s birthday and he does not have any of his clothing.

They gave us sandwiches as a meal twice. Snacks mid flight with cookies and a tuna panini. Then just the same tuna panini for dinner. That was it.

Top notch re cleanliness, comfort, operational. Attendants attentive, cheerful, courteous and professional. An unusually high-grade experience all around.

The staff was very good, the only thing was the air conditioning wasn't working during the boarding process so it was very hot inside the plane until we got airborne. The food wasn't great, the chicken was dry and hard to cut, the ravioli was ok and the little pizza pocket thing was pretty bad. Other than that is was a good flight all around

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

We were in business class and I had seat # 1. This was a night flight and after dinner was served, lights were dimmed and I went to sleep. The crew were loud and noisy so I didn’t get much sleep. I expect the crew to enjoy themselves but would Appreciate some decency in staying quiet while the passengers sleep

Have travelled business class with other airlines who profess to be the best in the world. They can however not beat the service and comfort that BA provide.

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

Everything, every step of the process, from check in, to boarding, to exiting the plane was organized, efficient, and orderly. Excellent experience!

Everything you need to know for your flight from London to Trieste

Information on your arrival and departure airports