This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TRS
18 Sep — 25 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Trieste Ronchi dei Legionari are usually found in November or October, booked 40 days in advance, depart on a Sunday or Tuesday and return on a Tuesday
Cheap flight deals from London to Trieste
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Cheapest flights from London to Trieste
Explore the most affordable flight options available from London to Trieste. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2026.
Sat 26/920:40 -
Nonstop2h 05m
Tue 29/922:15 -
Nonstop2h 10m
Deal found 15/8£38
Thu 1/1020:45 -
Nonstop2h 05m
Thu 15/1019:10 -
Nonstop2h 10m
Deal found 17/8£38
Thu 1/1020:45 -
Nonstop2h 05m
Thu 8/1019:10 -
Nonstop2h 10m
Deal found 17/8£39
Sat 5/920:40 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 18/8£44
Sat 5/920:40 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 14/8£45
Tue 8/918:45 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£47
Thu 3/920:45 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 17/8£48
Wed 9/917:10 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£50
Thu 3/920:45 -
Nonstop2h 05m
Thu 10/919:10 -
Nonstop2h 10m
Deal found 19/8£50
Wed 30/905:00 -
1 stop13h 10m
Wed 7/1015:15 -
1 stop14h 40m
Deal found 16/8£81
Thu 1/1015:15 -
2 stops16h 40m
Thu 8/1011:20 -
2 stops18h 35m
Deal found 17/8£84
Tue 29/915:15 -
2 stops18h 05m
Tue 6/1019:30 -
2 stops26h 35m
Deal found 15/8£89
Best flights from London to Trieste
Discover carefully curated flight deals from London to Trieste that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.
Sat 26/920:40 -
Nonstop2h 05m
Tue 29/922:15 -
Nonstop2h 10m
Deal found 15/8£38
Sat 5/920:40 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 14/8£45
Thu 1/1015:15 -
2 stops16h 40m
Thu 15/1020:05 -
2 stops18h 55m
Deal found 17/8£92
Thu 3/920:45 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 17/8£48
Thu 3/920:45 -
Nonstop2h 05m
Thu 10/919:10 -
Nonstop2h 10m
Deal found 19/8£50
Mon 16/1116:30 -
1 stop5h 25m
Fri 20/1115:15 -
1 stop19h 25m
Deal found 18/8£141
Sat 5/920:40 -
Nonstop2h 05m
Fri 11/918:20 -
Nonstop2h 10m
Deal found 17/8£58
Sat 5/920:40 -
Nonstop2h 05m
Thu 10/919:10 -
Nonstop2h 10m
Deal found 19/8£61
Mon 28/909:00 -
1 stop13h 05m
Mon 5/1020:10 -
2 stops25h 05m
Deal found 14/8£93
Wed 9/908:30 -
1 stop12h 45m
Fri 18/914:40 -
1 stop7h 00m
Deal found 17/8£193
Wed 2/909:15 -
1 stop12h 00m
Tue 8/906:20 -
1 stop12h 35m
Deal found 16/8£209
Mon 12/1013:25 -
Nonstop2h 05m
Thu 15/1019:10 -
Nonstop2h 10m
Deal found 16/8£65
Fri 18/920:35 -
2 stops16h 50m
Mon 21/920:10 -
2 stops19h 25m
Deal found 16/8£99
Mon 14/920:35 -
2 stops16h 45m
Fri 25/909:30 -
2 stops14h 35m
Deal found 15/8£103
Wed 16/920:50 -
2 stops16h 30m
Wed 23/915:15 -
1 stop14h 40m
Deal found 17/8£115
Tue 13/1006:45 -
2 stops10h 45m
Sat 17/1006:35 -
2 stops31h 35m
Deal found 14/8£164
Fri 9/1021:20 -
2 stops22h 05m
Sun 11/1006:05 -
2 stops10h 40m
Deal found 17/8£117
Tue 13/1006:45 -
2 stops10h 45m
Thu 15/1006:35 -
2 stops15h 30m
Deal found 17/8£164
Tue 29/916:50 -
2 stops25h 20m
Tue 6/1013:30 -
1 stop5h 35m
Deal found 15/8£121
Wed 2/909:15 -
1 stop12h 00m
Thu 17/914:40 -
1 stop4h 15m
Deal found 14/8£196
Tue 17/1109:00 -
2 stops8h 30m
Sat 21/1106:35 -
2 stops31h 35m
Deal found 15/8£167
Thu 3/919:50 -
1 stop12h 05m
Thu 17/906:30 -
2 stops14h 25m
Deal found 14/8£128
Mon 7/909:00 -
1 stop13h 05m
Thu 10/910:30 -
1 stop13h 10m
Deal found 18/8£128
Fri 2/1016:30 -
1 stop5h 25m
Mon 5/1019:15 -
1 stop15h 25m
Deal found 17/8£171
Wed 2/907:30 -
1 stop13h 45m
Sun 6/906:10 -
1 stop13h 30m
Deal found 19/8£207
Sat 3/1016:30 -
1 stop25h 00m
Mon 5/1019:15 -
1 stop15h 25m
Deal found 18/8£171
Sat 19/915:15 -
2 stops16h 50m
Mon 21/906:00 -
1 stop6h 35m
Deal found 16/8£129
Tue 8/909:15 -
1 stop12h 10m
Tue 15/906:20 -
1 stop12h 35m
Deal found 16/8£208
Thu 10/909:15 -
1 stop12h 10m
Tue 15/906:20 -
1 stop12h 35m
Deal found 17/8£209
Thu 8/1015:15 -
2 stops16h 40m
Mon 12/1006:40 -
2 stops13h 00m
Deal found 17/8£133
Direct flights from London to Trieste
Explore direct flight options from London to Trieste based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 August 2026.
Sat 26/920:40 -
Nonstop2h 05m
Tue 29/922:15 -
Nonstop2h 10m
Deal found 15/8£38
Thu 1/1020:45 -
Nonstop2h 05m
Thu 15/1019:10 -
Nonstop2h 10m
Deal found 17/8£38
Thu 1/1020:45 -
Nonstop2h 05m
Thu 8/1019:10 -
Nonstop2h 10m
Deal found 17/8£39
Sat 5/920:40 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 18/8£44
Sat 5/920:40 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 14/8£45
Tue 8/918:45 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£47
Thu 3/920:45 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 17/8£48
Wed 9/917:10 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£50
Thu 3/920:45 -
Nonstop2h 05m
Thu 10/919:10 -
Nonstop2h 10m
Deal found 19/8£50
Last-minute flights from London to Trieste
Discover last-minute flight deals from London to Trieste. Data last updated 19 August 2026 and is based on user searches.
Thu 3/920:45 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 17/8£48
Thu 3/920:45 -
Nonstop2h 05m
Thu 10/919:10 -
Nonstop2h 10m
Deal found 19/8£50
Sat 5/920:40 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 18/8£44
Sat 5/920:40 -
Nonstop2h 05m
Sat 12/919:05 -
Nonstop2h 10m
Deal found 14/8£45
Tue 8/918:45 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£47
Wed 9/917:10 -
Nonstop2h 05m
Tue 15/922:15 -
Nonstop2h 10m
Deal found 17/8£50
Sat 26/920:40 -
Nonstop2h 05m
Tue 29/922:15 -
Nonstop2h 10m
Deal found 15/8£38
Mon 28/909:00 -
1 stop13h 05m
Mon 5/1020:10 -
2 stops25h 05m
Deal found 14/8£93
Mon 28/908:25 -
1 stop13h 40m
Mon 5/1015:30 -
1 stop11h 30m
Deal found 14/8£96
Tue 29/915:15 -
2 stops18h 05m
Tue 6/1019:30 -
2 stops26h 35m
Deal found 15/8£89
Wed 30/917:10 -
Nonstop2h 05m
Wed 7/1015:35 -
Nonstop2h 10m
Deal found 16/8£52
Wed 30/905:00 -
1 stop13h 10m
Wed 7/1015:15 -
1 stop14h 40m
Deal found 16/8£81
One-way flights from London to Trieste
Search for one-way flight options from London to Trieste. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.
Thu 17/920:45 -
Nonstop2h 05m
Deal found 14/8£16
Thu 3/920:45 -
Nonstop2h 05m
Deal found 17/8£18
Wed 2/917:10 -
Nonstop2h 05m
Deal found 15/8£20
Wed 30/917:10 -
Nonstop2h 05m
Deal found 16/8£21
Tue 29/918:45 -
Nonstop2h 05m
Deal found 16/8£21
Thu 15/1020:45 -
Nonstop2h 05m
Deal found 15/8£24
Tue 13/1018:45 -
Nonstop2h 05m
Deal found 16/8£25
Fri 18/919:55 -
Nonstop2h 05m
Deal found 16/8£27
Sat 7/1105:00 -
1 stop11h 50m
Deal found 19/8£36
Sun 4/1021:50 -
1 stop10h 05m
Deal found 16/8£41
Tue 29/921:50 -
1 stop20h 20m
Deal found 16/8£45
Wed 20/119:45 -
1 stop21h 05m
Deal found 14/8£46
Find flight deals from London to Trieste
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Trieste (TRS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2026.
Customise your flight search to find flights from London to Trieste that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 19 August 2026.
Use the filters below to find and compare flights from London to Trieste that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
Fastest return journey
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Sat 26/9
20:40-23:45
Nonstop2h 05m
Trieste Ronchi dei Legionari
Tue 29/9
22:15-23:25
Nonstop2h 10m
£38
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Sat 5/9
20:40-23:45
Nonstop2h 05m
Trieste Ronchi dei Legionari
Sat 12/9
19:05-20:15
Nonstop2h 10m
£45
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Thu 3/9
20:45-23:50
Nonstop2h 05m
Trieste Ronchi dei Legionari
Sat 12/9
19:05-20:15
Nonstop2h 10m
£48
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Thu 3/9
20:45-23:50
Nonstop2h 05m
Trieste Ronchi dei Legionari
Thu 10/9
19:10-20:20
Nonstop2h 10m
£50
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Sat 5/9
20:40-23:45
Nonstop2h 05m
Trieste Ronchi dei Legionari
Fri 11/9
18:20-19:30
Nonstop2h 10m
£58
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Sat 5/9
20:40-23:45
Nonstop2h 05m
Trieste Ronchi dei Legionari
Thu 10/9
19:10-20:20
Nonstop2h 10m
£61
LondonTrieste
STN London Stansted - TRS Trieste Ronchi dei Legionari
STNTRS
London Stansted
Mon 12/10
13:25-16:30
Nonstop2h 05m
Trieste Ronchi dei Legionari
Thu 15/10
19:10-20:20
Nonstop2h 10m
£65
LondonTrieste
LTN London Luton - TRS Trieste Ronchi dei Legionari
LTNTRS
London Luton
Thu 1/10
15:15-08:55
2 stops16h 40m
Trieste Ronchi dei Legionari
Thu 15/10
20:05-14:00
2 stops18h 55m
£92
LondonTrieste
LTN London Luton - TRS Trieste Ronchi dei Legionari
LTNTRS
London Luton
Mon 28/9
09:00-23:05
1 stop13h 05m
Trieste Ronchi dei Legionari
Mon 5/10
20:10-20:15
2 stops25h 05m
£93
LondonTrieste
LTN London Luton - TRS Trieste Ronchi dei Legionari
LTNTRS
London Luton
Fri 18/9
20:35-14:25
2 stops16h 50m
Trieste Ronchi dei Legionari
Mon 21/9
20:10-14:35
2 stops19h 25m
£99
Flights are sorted by cheapest return flights first.
Deals found on 14/8
Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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6
Best time to book a flight from London to Trieste
Have a flexible travel schedule? Discover the best time to fly to Trieste from London with our price prediction graph.
LON-TRS
STN-TRS
LTN-TRS
LGW-TRS
LCY-TRS
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Trieste
LON-TRS
STN-TRS
LTN-TRS
LGW-TRS
LCY-TRS
What is the cheapest month to book a flight from London to Trieste?
Currently, November is the cheapest month in which you can book a flight from London to Trieste (average of £61). Flying from London to Trieste in August is currently the most expensive (average of £151). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to TRS?
Find hourly flight availability from London to Trieste. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2026.
It’s typically best to fly out from London to Trieste in the morning. Doing so could potentially save you 61% on the flight price compared to flying at midday, which is usually more expensive.
How much does it cost for a return flight from London to Trieste?
Airfare is below average for this route at the moment.
London to Trieste flights typically cost between £126 and £206 in September.The cheapest return price found within the last 5 days was £38 on Ryanair (26 Sept–29 Sept).
How far ahead should I book a flight from London to Trieste?
The price you pay for your flight from London to Trieste may vary depending on when you book. For the best chance of a lower fare, look to book 38 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Trieste
Get insights into the airlines that provide service to Trieste. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trieste. Reviews last updated 19 August 2026.
Get a feel of what it's like to fly with Ryanair,Lufthansa, andITA Airways from London to Trieste by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Terrible they overbooked a didn't let 2 of our friends on, absolute shambles
Related info for your journey
Find useful and relevant information for your journey from London to Trieste. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Trieste from London?
If you book a flight to Trieste from London, you will be flying to Ronchi dei Legionari, which is the city’s only airport. Trieste Ronchi dei Legionari (TRS) is located 18.2 mi from the center of Trieste. There are 0 flights from London to Ronchi dei Legionari per day from 2 different airlines.
How long is the flight from London to Trieste?
Ryanair can get you from London to Trieste in just under 2h 05m. Your travel time will be generally consistent. Airlines will cover a distance of 731 mi. All flights are typically direct.
What are the cheapest airlines flying from London to Trieste round-trip?
Cheapflights users have booked flights from London to Trieste round-trip from £41. Another airline that can offer you cheap pricing is Lufthansa. Ryanair is 64% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most popular routes from London to Trieste?
While some choose either London Stansted - Trieste Ronchi dei Legionari or London Gatwick - Trieste Ronchi dei Legionari, London Heathrow - Trieste Ronchi dei Legionari is the most popular route from London to Trieste.
Can I find deals for flights from London to Trieste that include hotel bookings?
Yes. In addition to deals on London to Trieste flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Trieste?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Trieste.
Can I find deals for business class flights from London to Trieste?
Yes. Cheapflights offers flight deals from London to Trieste by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Trieste?
Currently, November is the cheapest month in which you can book a flight from London to Trieste (average of £61). Flying from London to Trieste in August is currently the most expensive (average of £151). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Trieste departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 19 August 2026.
Discover the top 2 airlines that operate flights from London to Trieste. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 19 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from London to Trieste?
Cheapflights makes it easy to find London to Trieste flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from London to Trieste?
Cheapflights simply makes it quick and affordable to book flights from London to Trieste by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from London to Trieste with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Trieste flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from London to Trieste become cheaper?
Yes, Cheapflights offers price alerts on London to Trieste flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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